9.119.11

74 files changed, 5159 insertions, 1718 deletions

diff --git a/C/7z.h b/C/7z.h
index e5fad3dd..01c4cac6 100755
--- a/C/7z.h
+++ b/C/7z.h
@@ -1,5 +1,5 @@
 /* 7z.h -- 7z interface
-2009-08-17 : Igor Pavlov : Public domain */
+2010-03-11 : Igor Pavlov : Public domain */
 
 #ifndef __7Z_H
 #define __7Z_H
@@ -96,11 +96,13 @@ typedef struct
   CNtfsFileTime MTime;
   UInt64 Size;
   UInt32 Crc;
+  UInt32 Attrib;
   Byte HasStream;
   Byte IsDir;
   Byte IsAnti;
   Byte CrcDefined;
   Byte MTimeDefined;
+  Byte AttribDefined;
 } CSzFileItem;
 
 void SzFile_Init(CSzFileItem *p);
diff --git a/C/7zDec.c b/C/7zDec.c
index b2b1a731..0df807b1 100755
--- a/C/7zDec.c
+++ b/C/7zDec.c
@@ -1,14 +1,20 @@
 /* 7zDec.c -- Decoding from 7z folder
-2009-08-16 : Igor Pavlov : Public domain */
+2010-03-15 : Igor Pavlov : Public domain */
 
 #include <string.h>
 
+/* #define _7ZIP_PPMD_SUPPPORT */
+
 #include "7z.h"
 
 #include "Bcj2.h"
 #include "Bra.h"
+#include "CpuArch.h"
 #include "LzmaDec.h"
 #include "Lzma2Dec.h"
+#ifdef _7ZIP_PPMD_SUPPPORT
+#include "Ppmd7.h"
+#endif
 
 #define k_Copy 0
 #define k_LZMA2 0x21
@@ -16,6 +22,104 @@
 #define k_BCJ 0x03030103
 #define k_BCJ2 0x0303011B
 
+#ifdef _7ZIP_PPMD_SUPPPORT
+
+#define k_PPMD 0x30401
+
+typedef struct
+{
+  IByteIn p;
+  const Byte *cur;
+  const Byte *end;
+  const Byte *begin;
+  UInt64 processed;
+  Bool extra;
+  SRes res;
+  ILookInStream *inStream;
+} CByteInToLook;
+
+static Byte ReadByte(void *pp)
+{
+  CByteInToLook *p = (CByteInToLook *)pp;
+  if (p->cur != p->end)
+    return *p->cur++;
+  if (p->res == SZ_OK)
+  {
+    size_t size = p->cur - p->begin;
+    p->processed += size;
+    p->res = p->inStream->Skip(p->inStream, size);
+    size = (1 << 25);
+    p->res = p->inStream->Look(p->inStream, (const void **)&p->begin, &size);
+    p->cur = p->begin;
+    p->end = p->begin + size;
+    if (size != 0)
+      return *p->cur++;;
+  }
+  p->extra = True;
+  return 0;
+}
+
+static SRes SzDecodePpmd(CSzCoderInfo *coder, UInt64 inSize, ILookInStream *inStream,
+    Byte *outBuffer, SizeT outSize, ISzAlloc *allocMain)
+{
+  CPpmd7 ppmd;
+  CByteInToLook s;
+  SRes res = SZ_OK;
+
+  s.p.Read = ReadByte;
+  s.inStream = inStream;
+  s.begin = s.end = s.cur = NULL;
+  s.extra = False;
+  s.res = SZ_OK;
+  s.processed = 0;
+
+  if (coder->Props.size != 5)
+    return SZ_ERROR_UNSUPPORTED;
+
+  {
+    unsigned order = coder->Props.data[0];
+    UInt32 memSize = GetUi32(coder->Props.data + 1);
+    if (order < PPMD7_MIN_ORDER ||
+        order > PPMD7_MAX_ORDER ||
+        memSize < PPMD7_MIN_MEM_SIZE ||
+        memSize > PPMD7_MAX_MEM_SIZE)
+      return SZ_ERROR_UNSUPPORTED;
+    Ppmd7_Construct(&ppmd);
+    if (!Ppmd7_Alloc(&ppmd, memSize, allocMain))
+      return SZ_ERROR_MEM;
+    Ppmd7_Init(&ppmd, order);
+  }
+  {
+    CPpmd7z_RangeDec rc;
+    Ppmd7z_RangeDec_CreateVTable(&rc);
+    rc.Stream = &s.p;
+    if (!Ppmd7z_RangeDec_Init(&rc))
+      res = SZ_ERROR_DATA;
+    else if (s.extra)
+      res = (s.res != SZ_OK ? s.res : SZ_ERROR_DATA);
+    else
+    {
+      SizeT i;
+      for (i = 0; i < outSize; i++)
+      {
+        int sym = Ppmd7_DecodeSymbol(&ppmd, &rc.p);
+        if (s.extra || sym < 0)
+          break;
+        outBuffer[i] = (Byte)sym;
+      }
+      if (i != outSize)
+        res = (s.res != SZ_OK ? s.res : SZ_ERROR_DATA);
+      else if (s.processed + (s.cur - s.begin) != inSize || !Ppmd7z_RangeDec_IsFinishedOK(&rc))
+        res = SZ_ERROR_DATA;
+    }
+  }
+  Ppmd7_Free(&ppmd, allocMain);
+  return res;
+}
+
+#endif
+
+
 static SRes SzDecodeLzma(CSzCoderInfo *coder, UInt64 inSize, ILookInStream *inStream,
     Byte *outBuffer, SizeT outSize, ISzAlloc *allocMain)
 {
@@ -34,7 +138,7 @@ static SRes SzDecodeLzma(CSzCoderInfo *coder, UInt64 inSize, ILookInStream *inSt
     size_t lookahead = (1 << 18);
     if (lookahead > inSize)
       lookahead = (size_t)inSize;
-    res = inStream->Look((void *)inStream, (void **)&inBuf, &lookahead);
+    res = inStream->Look((void *)inStream, (const void **)&inBuf, &lookahead);
     if (res != SZ_OK)
       break;
 
@@ -84,7 +188,7 @@ static SRes SzDecodeLzma2(CSzCoderInfo *coder, UInt64 inSize, ILookInStream *inS
     size_t lookahead = (1 << 18);
     if (lookahead > inSize)
       lookahead = (size_t)inSize;
-    res = inStream->Look((void *)inStream, (void **)&inBuf, &lookahead);
+    res = inStream->Look((void *)inStream, (const void **)&inBuf, &lookahead);
     if (res != SZ_OK)
       break;
 
@@ -121,7 +225,7 @@ static SRes SzDecodeCopy(UInt64 inSize, ILookInStream *inStream, Byte *outBuffer
     size_t curSize = (1 << 18);
     if (curSize > inSize)
       curSize = (size_t)inSize;
-    RINOK(inStream->Look((void *)inStream, (void **)&inBuf, &curSize));
+    RINOK(inStream->Look((void *)inStream, (const void **)&inBuf, &curSize));
     if (curSize == 0)
       return SZ_ERROR_INPUT_EOF;
     memcpy(outBuffer, inBuf, curSize);
@@ -132,16 +236,38 @@ static SRes SzDecodeCopy(UInt64 inSize, ILookInStream *inStream, Byte *outBuffer
   return SZ_OK;
 }
 
-#define IS_UNSUPPORTED_METHOD(m) ((m) != k_Copy && (m) != k_LZMA && (m) != k_LZMA2)
-#define IS_UNSUPPORTED_CODER(c) (IS_UNSUPPORTED_METHOD(c.MethodID) || c.NumInStreams != 1 || c.NumOutStreams != 1)
-#define IS_NO_BCJ(c) (c.MethodID != k_BCJ || c.NumInStreams != 1 || c.NumOutStreams != 1)
-#define IS_NO_BCJ2(c) (c.MethodID != k_BCJ2 || c.NumInStreams != 4 || c.NumOutStreams != 1)
+static Bool IS_MAIN_METHOD(UInt32 m)
+{
+  switch(m)
+  {
+    case k_Copy:
+    case k_LZMA:
+    case k_LZMA2:
+    #ifdef _7ZIP_PPMD_SUPPPORT
+    case k_PPMD:
+    #endif
+      return True;
+  }
+  return False;
+}
+
+static Bool IS_SUPPORTED_CODER(const CSzCoderInfo *c)
+{
+  return
+      c->NumInStreams == 1 &&
+      c->NumOutStreams == 1 &&
+      c->MethodID <= (UInt32)0xFFFFFFFF &&
+      IS_MAIN_METHOD((UInt32)c->MethodID);
+}
+
+#define IS_BCJ(c) ((c)->MethodID == k_BCJ && (c)->NumInStreams == 1 && (c)->NumOutStreams == 1)
+#define IS_BCJ2(c) ((c)->MethodID == k_BCJ2 && (c)->NumInStreams == 4 && (c)->NumOutStreams == 1)
 
 static SRes CheckSupportedFolder(const CSzFolder *f)
 {
   if (f->NumCoders < 1 || f->NumCoders > 4)
     return SZ_ERROR_UNSUPPORTED;
-  if (IS_UNSUPPORTED_CODER(f->Coders[0]))
+  if (!IS_SUPPORTED_CODER(&f->Coders[0]))
     return SZ_ERROR_UNSUPPORTED;
   if (f->NumCoders == 1)
   {
@@ -151,7 +277,7 @@ static SRes CheckSupportedFolder(const CSzFolder *f)
   }
   if (f->NumCoders == 2)
   {
-    if (IS_NO_BCJ(f->Coders[1]) ||
+    if (!IS_BCJ(&f->Coders[1]) ||
         f->NumPackStreams != 1 || f->PackStreams[0] != 0 ||
         f->NumBindPairs != 1 ||
         f->BindPairs[0].InIndex != 1 || f->BindPairs[0].OutIndex != 0)
@@ -160,9 +286,9 @@ static SRes CheckSupportedFolder(const CSzFolder *f)
   }
   if (f->NumCoders == 4)
   {
-    if (IS_UNSUPPORTED_CODER(f->Coders[1]) ||
-        IS_UNSUPPORTED_CODER(f->Coders[2]) ||
-        IS_NO_BCJ2(f->Coders[3]))
+    if (!IS_SUPPORTED_CODER(&f->Coders[1]) ||
+        !IS_SUPPORTED_CODER(&f->Coders[2]) ||
+        !IS_BCJ2(&f->Coders[3]))
       return SZ_ERROR_UNSUPPORTED;
     if (f->NumPackStreams != 4 ||
         f->PackStreams[0] != 2 ||
@@ -204,7 +330,7 @@ static SRes SzFolder_Decode2(const CSzFolder *folder, const UInt64 *packSizes,
   {
     CSzCoderInfo *coder = &folder->Coders[ci];
 
-    if (coder->MethodID == k_Copy || coder->MethodID == k_LZMA || coder->MethodID == k_LZMA2)
+    if (IS_MAIN_METHOD((UInt32)coder->MethodID))
     {
       UInt32 si = 0;
       UInt64 offset;
@@ -252,10 +378,18 @@ static SRes SzFolder_Decode2(const CSzFolder *folder, const UInt64 *packSizes,
       {
         RINOK(SzDecodeLzma(coder, inSize, inStream, outBufCur, outSizeCur, allocMain));
       }
-      else
+      else if (coder->MethodID == k_LZMA2)
       {
         RINOK(SzDecodeLzma2(coder, inSize, inStream, outBufCur, outSizeCur, allocMain));
       }
+      else
+      {
+        #ifdef _7ZIP_PPMD_SUPPPORT
+        RINOK(SzDecodePpmd(coder, inSize, inStream, outBufCur, outSizeCur, allocMain));
+        #else
+        return SZ_ERROR_UNSUPPORTED;
+        #endif
+      }
     }
     else if (coder->MethodID == k_BCJ)
     {
diff --git a/C/7zIn.c b/C/7zIn.c
index 90619777..35c056d6 100755
--- a/C/7zIn.c
+++ b/C/7zIn.c
@@ -1,5 +1,5 @@
 /* 7zIn.c -- 7z Input functions
-2009-11-24 : Igor Pavlov : Public domain */
+2010-03-11 : Igor Pavlov : Public domain */
 
 #include <string.h>
 
@@ -1038,6 +1038,25 @@ static SRes SzReadHeader2(
         RINOK(SzReadBoolVector(sd, numEmptyStreams, emptyFileVector, allocTemp));
         break;
       }
+      case k7zIdWinAttributes:
+      {
+        RINOK(SzReadBoolVector2(sd, numFiles, lwtVector, allocTemp));
+        RINOK(SzReadSwitch(sd));
+        for (i = 0; i < numFiles; i++)
+        {
+          CSzFileItem *f = &files[i];
+          Byte defined = (*lwtVector)[i];
+          f->AttribDefined = defined;
+          f->Attrib = 0;
+          if (defined)
+          {
+            RINOK(SzReadUInt32(sd, &f->Attrib));
+          }
+        }
+        IAlloc_Free(allocTemp, *lwtVector);
+        *lwtVector = NULL;
+        break;
+      }
       case k7zIdMTime:
       {
         RINOK(SzReadBoolVector2(sd, numFiles, lwtVector, allocTemp));
@@ -1054,6 +1073,8 @@ static SRes SzReadHeader2(
             RINOK(SzReadUInt32(sd, &f->MTime.High));
           }
         }
+        IAlloc_Free(allocTemp, *lwtVector);
+        *lwtVector = NULL;
         break;
       }
       default:
diff --git a/C/7zStream.c b/C/7zStream.c
index 86232aa3..0ebb7b5f 100755
--- a/C/7zStream.c
+++ b/C/7zStream.c
@@ -1,5 +1,5 @@
 /* 7zStream.c -- 7z Stream functions
-2008-11-23 : Igor Pavlov : Public domain */
+2010-03-11 : Igor Pavlov : Public domain */
 
 #include <string.h>
 
@@ -39,7 +39,7 @@ SRes LookInStream_SeekTo(ILookInStream *stream, UInt64 offset)
 
 SRes LookInStream_LookRead(ILookInStream *stream, void *buf, size_t *size)
 {
-  void *lookBuf;
+  const void *lookBuf;
   if (*size == 0)
     return SZ_OK;
   RINOK(stream->Look(stream, &lookBuf, size));
@@ -66,7 +66,7 @@ SRes LookInStream_Read(ILookInStream *stream, void *buf, size_t size)
   return LookInStream_Read2(stream, buf, size, SZ_ERROR_INPUT_EOF);
 }
 
-static SRes LookToRead_Look_Lookahead(void *pp, void **buf, size_t *size)
+static SRes LookToRead_Look_Lookahead(void *pp, const void **buf, size_t *size)
 {
   SRes res = SZ_OK;
   CLookToRead *p = (CLookToRead *)pp;
@@ -84,7 +84,7 @@ static SRes LookToRead_Look_Lookahead(void *pp, void **buf, size_t *size)
   return res;
 }
 
-static SRes LookToRead_Look_Exact(void *pp, void **buf, size_t *size)
+static SRes LookToRead_Look_Exact(void *pp, const void **buf, size_t *size)
 {
   SRes res = SZ_OK;
   CLookToRead *p = (CLookToRead *)pp;
diff --git a/C/7zVersion.h b/C/7zVersion.h
index 049445a6..a01a207d 100755
--- a/C/7zVersion.h
+++ b/C/7zVersion.h
@@ -1,7 +1,7 @@
 #define MY_VER_MAJOR 9
-#define MY_VER_MINOR 10
+#define MY_VER_MINOR 11
 #define MY_VER_BUILD 0
-#define MY_VERSION "9.10 beta"
-#define MY_DATE "2009-12-22"
+#define MY_VERSION "9.11 beta"
+#define MY_DATE "2010-03-15"
 #define MY_COPYRIGHT ": Igor Pavlov : Public domain"
 #define MY_VERSION_COPYRIGHT_DATE MY_VERSION " " MY_COPYRIGHT " : " MY_DATE
diff --git a/C/CpuArch.h b/C/CpuArch.h
index b32142fe..b3e91f53 100755
--- a/C/CpuArch.h
+++ b/C/CpuArch.h
@@ -1,5 +1,5 @@
 /* CpuArch.h -- CPU specific code
-2009-11-25: Igor Pavlov : Public domain */
+2010-03-11: Igor Pavlov : Public domain */
 
 #ifndef __CPU_ARCH_H
 #define __CPU_ARCH_H
@@ -24,10 +24,18 @@ If MY_CPU_LE_UNALIGN is not defined, we don't know about these properties of pla
 #define MY_CPU_64BIT
 #endif
 
-#if defined(_M_IX86) || defined(__i386__) || defined(MY_CPU_AMD64)
+#if defined(_M_IX86) || defined(__i386__)
+#define MY_CPU_X86
+#endif
+
+#if defined(MY_CPU_X86) || defined(MY_CPU_AMD64)
 #define MY_CPU_X86_OR_AMD64
 #endif
 
+#if defined(MY_CPU_X86) || defined(_M_ARM)
+#define MY_CPU_32BIT
+#endif
+
 #if defined(_WIN32) && defined(_M_ARM)
 #define MY_CPU_ARM_LE
 #endif
diff --git a/C/Ppmd.h b/C/Ppmd.h
new file mode 100755
index 00000000..72a1cc52
--- /dev/null
+++ b/C/Ppmd.h
@@ -0,0 +1,81 @@
+/* Ppmd.h -- PPMD codec common code
+2010-03-12 : Igor Pavlov : Public domain
+This code is based on PPMd var.H (2001): Dmitry Shkarin : Public domain */
+
+#ifndef __PPMD_H
+#define __PPMD_H
+
+#include "Types.h"
+#include "CpuArch.h"
+
+EXTERN_C_BEGIN
+
+#ifdef MY_CPU_32BIT
+  #define PPMD_32BIT
+#endif
+
+#define PPMD_INT_BITS 7
+#define PPMD_PERIOD_BITS 7
+#define PPMD_BIN_SCALE (1 << (PPMD_INT_BITS + PPMD_PERIOD_BITS))
+
+#define PPMD_GET_MEAN_SPEC(summ, shift, round) (((summ) + (1 << ((shift) - (round)))) >> (shift))
+#define PPMD_GET_MEAN(summ) PPMD_GET_MEAN_SPEC((summ), PPMD_PERIOD_BITS, 2)
+#define PPMD_UPDATE_PROB_0(prob) ((prob) + (1 << PPMD_INT_BITS) - PPMD_GET_MEAN(prob))
+#define PPMD_UPDATE_PROB_1(prob) ((prob) - PPMD_GET_MEAN(prob))
+
+#define PPMD_N1 4
+#define PPMD_N2 4
+#define PPMD_N3 4
+#define PPMD_N4 ((128 + 3 - 1 * PPMD_N1 - 2 * PPMD_N2 - 3 * PPMD_N3) / 4)
+#define PPMD_NUM_INDEXES (PPMD_N1 + PPMD_N2 + PPMD_N3 + PPMD_N4)
+
+/* SEE-contexts for PPM-contexts with masked symbols */
+typedef struct
+{
+  UInt16 Summ; /* Freq */
+  Byte Shift;  /* Speed of Freq change; low Shift is for fast change */
+  Byte Count;  /* Count to next change of Shift */
+} CPpmd_See;
+
+#define Ppmd_See_Update(p)  if ((p)->Shift < PPMD_PERIOD_BITS && --(p)->Count == 0) \
+    { (p)->Summ <<= 1; (p)->Count = (Byte)(3 << (p)->Shift++); }
+
+typedef struct
+{
+  Byte Symbol;
+  Byte Freq;
+  UInt16 SuccessorLow;
+  UInt16 SuccessorHigh;
+} CPpmd_State;
+
+typedef
+  #ifdef PPMD_32BIT
+    CPpmd_State *
+  #else
+    UInt32
+  #endif
+  CPpmd_State_Ref;
+
+typedef
+  #ifdef PPMD_32BIT
+    void *
+  #else
+    UInt32
+  #endif
+  CPpmd_Void_Ref;
+
+typedef
+  #ifdef PPMD_32BIT
+    Byte *
+  #else
+    UInt32
+  #endif
+  CPpmd_Byte_Ref;
+
+#define PPMD_SetAllBitsIn256Bytes(p) \
+  { unsigned i; for (i = 0; i < 256 / sizeof(p[0]); i += 8) { \
+  p[i+7] = p[i+6] = p[i+5] = p[i+4] = p[i+3] = p[i+2] = p[i+1] = p[i+0] = ~(size_t)0; }}
+
+EXTERN_C_END
+ 
+#endif
diff --git a/C/Ppmd7.c b/C/Ppmd7.c
new file mode 100755
index 00000000..060d86d2
--- /dev/null
+++ b/C/Ppmd7.c
@@ -0,0 +1,708 @@
+/* Ppmd7.c -- PPMdH codec
+2010-03-12 : Igor Pavlov : Public domain
+This code is based on PPMd var.H (2001): Dmitry Shkarin : Public domain */
+
+#include <memory.h>
+
+#include "Ppmd7.h"
+
+const Byte PPMD7_kExpEscape[16] = { 25, 14, 9, 7, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2 };
+static const UInt16 kInitBinEsc[] = { 0x3CDD, 0x1F3F, 0x59BF, 0x48F3, 0x64A1, 0x5ABC, 0x6632, 0x6051};
+
+#define MAX_FREQ 124
+#define UNIT_SIZE 12
+
+#define U2B(nu) ((UInt32)(nu) * UNIT_SIZE)
+#define U2I(nu) (p->Units2Indx[(nu) - 1])
+#define I2U(indx) (p->Indx2Units[indx])
+
+#ifdef PPMD_32BIT
+  #define REF(ptr) (ptr)
+#else
+  #define REF(ptr) ((UInt32)((Byte *)(ptr) - (p)->Base))
+#endif
+
+#define STATS_REF(ptr) ((CPpmd_State_Ref)REF(ptr))
+
+#define CTX(ref) ((CPpmd7_Context *)Ppmd7_GetContext(p, ref))
+#define STATS(ctx) Ppmd7_GetStats(p, ctx)
+#define ONE_STATE(ctx) Ppmd7Context_OneState(ctx)
+#define SUFFIX(ctx) CTX((ctx)->Suffix)
+
+typedef CPpmd7_Context * CTX_PTR;
+
+struct CPpmd7_Node_;
+
+typedef
+  #ifdef PPMD_32BIT
+    struct CPpmd7_Node_ *
+  #else
+    UInt32
+  #endif
+  CPpmd7_Node_Ref;
+
+typedef struct CPpmd7_Node_
+{
+  UInt16 Stamp; /* must be at offset 0 as CPpmd7_Context::NumStats. Stamp=0 means free */
+  UInt16 NU;
+  CPpmd7_Node_Ref Next; /* must be at offset >= 4 */
+  CPpmd7_Node_Ref Prev;
+} CPpmd7_Node;
+
+#ifdef PPMD_32BIT
+  #define NODE(ptr) (ptr)
+#else
+  #define NODE(offs) ((CPpmd7_Node *)(p->Base + (offs)))
+#endif
+
+void Ppmd7_Construct(CPpmd7 *p)
+{
+  unsigned i, k, m;
+
+  p->Base = 0;
+
+  for (i = 0, k = 0; i < PPMD_NUM_INDEXES; i++)
+  {
+    unsigned step = (i >= 12 ? 4 : (i >> 2) + 1);
+    do { p->Units2Indx[k++] = (Byte)i; } while(--step);
+    p->Indx2Units[i] = (Byte)k;
+  }
+
+  p->NS2BSIndx[0] = (0 << 1);
+  p->NS2BSIndx[1] = (1 << 1);
+  memset(p->NS2BSIndx + 2, (2 << 1), 9);
+  memset(p->NS2BSIndx + 11, (3 << 1), 256 - 11);
+
+  for (i = 0; i < 3; i++)
+    p->NS2Indx[i] = (Byte)i;
+  for (m = i, k = 1; i < 256; i++)
+  {
+    p->NS2Indx[i] = (Byte)m;
+    if (--k == 0)
+      k = (++m) - 2;
+  }
+
+  memset(p->HB2Flag, 0, 0x40);
+  memset(p->HB2Flag + 0x40, 8, 0x100 - 0x40);
+}
+
+void Ppmd7_Free(CPpmd7 *p, ISzAlloc *alloc)
+{
+  alloc->Free(alloc, p->Base);
+  p->Size = 0;
+  p->Base = 0;
+}
+
+Bool Ppmd7_Alloc(CPpmd7 *p, UInt32 size, ISzAlloc *alloc)
+{
+  if (p->Base == 0 || p->Size != size)
+  {
+    Ppmd7_Free(p, alloc);
+    p->AlignOffset =
+      #ifdef PPMD_32BIT
+        (4 - size) & 3;
+      #else
+        4 - (size & 3);
+      #endif
+    if ((p->Base = (Byte *)alloc->Alloc(alloc, p->AlignOffset + size
+        #ifndef PPMD_32BIT
+        + UNIT_SIZE
+        #endif
+        )) == 0)
+      return False;
+    p->Size = size;
+  }
+  return True;
+}
+
+static void InsertNode(CPpmd7 *p, void *node, unsigned indx)
+{
+  *((CPpmd_Void_Ref *)node) = p->FreeList[indx];
+  p->FreeList[indx] = REF(node);
+}
+
+static void *RemoveNode(CPpmd7 *p, unsigned indx)
+{
+  CPpmd_Void_Ref *node = (CPpmd_Void_Ref *)Ppmd7_GetPtr(p, p->FreeList[indx]);
+  p->FreeList[indx] = *node;
+  return node;
+}
+
+static void SplitBlock(CPpmd7 *p, void *ptr, unsigned oldIndx, unsigned newIndx)
+{
+  unsigned i, nu = I2U(oldIndx) - I2U(newIndx);
+  ptr = (Byte *)ptr + U2B(I2U(newIndx));
+  if (I2U(i = U2I(nu)) != nu)
+  {
+    unsigned k = I2U(--i);
+    InsertNode(p, ((Byte *)ptr) + U2B(k), nu - k - 1);
+  }
+  InsertNode(p, ptr, i);
+}
+
+static void GlueFreeBlocks(CPpmd7 *p)
+{
+  #ifdef PPMD_32BIT
+  CPpmd7_Node headItem;
+  CPpmd7_Node_Ref head = &headItem;
+  #else
+  CPpmd7_Node_Ref head = p->AlignOffset + p->Size;
+  #endif
+  
+  CPpmd7_Node_Ref n = head;
+  unsigned i;
+
+  p->GlueCount = 255;
+
+  /* create doubly-linked list of free blocks */
+  for (i = 0; i < PPMD_NUM_INDEXES; i++)
+  {
+    UInt16 nu = I2U(i);
+    CPpmd7_Node_Ref next = (CPpmd7_Node_Ref)p->FreeList[i];
+    p->FreeList[i] = 0;
+    while (next != 0)
+    {
+      CPpmd7_Node *node = NODE(next);
+      node->Next = n;
+      n = NODE(n)->Prev = next;
+      next = *(const CPpmd7_Node_Ref *)node;
+      node->Stamp = 0;
+      node->NU = (UInt16)nu;
+    }
+  }
+  NODE(head)->Stamp = 1;
+  NODE(head)->Next = n;
+  NODE(n)->Prev = head;
+  if (p->LoUnit != p->HiUnit)
+    ((CPpmd7_Node *)p->LoUnit)->Stamp = 1;
+  
+  /* Glue free blocks */
+  while (n != head)
+  {
+    CPpmd7_Node *node = NODE(n);
+    UInt32 nu = (UInt32)node->NU;
+    for (;;)
+    {
+      CPpmd7_Node *node2 = NODE(n) + nu;
+      nu += node2->NU;
+      if (node2->Stamp != 0 || nu >= 0x10000)
+        break;
+      NODE(node2->Prev)->Next = node2->Next;
+      NODE(node2->Next)->Prev = node2->Prev;
+      node->NU = (UInt16)nu;
+    }
+    n = node->Next;
+  }
+  
+  /* Fill lists of free blocks */
+  for (n = NODE(head)->Next; n != head;)
+  {
+    CPpmd7_Node *node = NODE(n);
+    unsigned nu;
+    CPpmd7_Node_Ref next = node->Next;
+    for (nu = node->NU; nu > 128; nu -= 128, node += 128)
+      InsertNode(p, node, PPMD_NUM_INDEXES - 1);
+    if (I2U(i = U2I(nu)) != nu)
+    {
+      unsigned k = I2U(--i);
+      InsertNode(p, node + k, nu - k - 1);
+    }
+    InsertNode(p, node, i);
+    n = next;
+  }
+}
+
+static void *AllocUnitsRare(CPpmd7 *p, unsigned indx)
+{
+  unsigned i;
+  void *retVal;
+  if (p->GlueCount == 0)
+  {
+    GlueFreeBlocks(p);
+    if (p->FreeList[indx] != 0)
+      return RemoveNode(p, indx);
+  }
+  i = indx;
+  do
+  {
+    if (++i == PPMD_NUM_INDEXES)
+    {
+      UInt32 numBytes = U2B(I2U(indx));
+      p->GlueCount--;
+      return ((UInt32)(p->UnitsStart - p->Text) > numBytes) ? (p->UnitsStart -= numBytes) : (NULL);
+    }
+  }
+  while (p->FreeList[i] == 0);
+  retVal = RemoveNode(p, i);
+  SplitBlock(p, retVal, i, indx);
+  return retVal;
+}
+
+static void *AllocUnits(CPpmd7 *p, unsigned indx)
+{
+  UInt32 numBytes;
+  if (p->FreeList[indx] != 0)
+    return RemoveNode(p, indx);
+  numBytes = U2B(I2U(indx));
+  if (numBytes <= (UInt32)(p->HiUnit - p->LoUnit))
+  {
+    void *retVal = p->LoUnit;
+    p->LoUnit += numBytes;
+    return retVal;
+  }
+  return AllocUnitsRare(p, indx);
+}
+
+#define MyMem12Cpy(dest, src, num) \
+  { UInt32 *d = (UInt32 *)dest; const UInt32 *s = (const UInt32 *)src; UInt32 n = num; \
+    do { d[0] = s[0]; d[1] = s[1]; d[2] = s[2]; s += 3; d += 3; } while(--n); }
+
+static void *ShrinkUnits(CPpmd7 *p, void *oldPtr, unsigned oldNU, unsigned newNU)
+{
+  unsigned i0 = U2I(oldNU);
+  unsigned i1 = U2I(newNU);
+  if (i0 == i1)
+    return oldPtr;
+  if (p->FreeList[i1] != 0)
+  {
+    void *ptr = RemoveNode(p, i1);
+    MyMem12Cpy(ptr, oldPtr, newNU);
+    InsertNode(p, oldPtr, i0);
+    return ptr;
+  }
+  SplitBlock(p, oldPtr, i0, i1);
+  return oldPtr;
+}
+
+#define SUCCESSOR(p) ((CPpmd_Void_Ref)((p)->SuccessorLow | ((UInt32)(p)->SuccessorHigh << 16)))
+
+static void SetSuccessor(CPpmd_State *p, CPpmd_Void_Ref v)
+{
+  (p)->SuccessorLow = (UInt16)((UInt32)(v) & 0xFFFF);
+  (p)->SuccessorHigh = (UInt16)(((UInt32)(v) >> 16) & 0xFFFF);
+}
+
+static void RestartModel(CPpmd7 *p)
+{
+  unsigned i, k, m;
+
+  memset(p->FreeList, 0, sizeof(p->FreeList));
+  p->Text = p->Base + p->AlignOffset;
+  p->HiUnit = p->Text + p->Size;
+  p->LoUnit = p->UnitsStart = p->HiUnit - p->Size / 8 / UNIT_SIZE * 7 * UNIT_SIZE;
+  p->GlueCount = 0;
+
+  p->OrderFall = p->MaxOrder;
+  p->RunLength = p->InitRL = -(Int32)((p->MaxOrder < 12) ? p->MaxOrder : 12) - 1;
+  p->PrevSuccess = 0;
+
+  p->MinContext = p->MaxContext = (CTX_PTR)(p->HiUnit -= UNIT_SIZE); /* AllocContext(p); */
+  p->MinContext->Suffix = 0;
+  p->MinContext->NumStats = 256;
+  p->MinContext->SummFreq = 256 + 1;
+  p->FoundState = (CPpmd_State *)p->LoUnit; /* AllocUnits(p, PPMD_NUM_INDEXES - 1); */
+  p->LoUnit += U2B(256 / 2);
+  p->MinContext->Stats = REF(p->FoundState);
+  for (i = 0; i < 256; i++)
+  {
+    CPpmd_State *s = &p->FoundState[i];
+    s->Symbol = (Byte)i;
+    s->Freq = 1;
+    SetSuccessor(s, 0);
+  }
+
+  for (i = 0; i < 128; i++)
+    for (k = 0; k < 8; k++)
+    {
+      UInt16 *dest = p->BinSumm[i] + k;
+      UInt16 val = (UInt16)(PPMD_BIN_SCALE - kInitBinEsc[k] / (i + 2));
+      for (m = 0; m < 64; m += 8)
+        dest[m] = val;
+    }
+  
+  for (i = 0; i < 25; i++)
+    for (k = 0; k < 16; k++)
+    {
+      CPpmd_See *s = &p->See[i][k];
+      s->Summ = (UInt16)((5 * i + 10) << (s->Shift = PPMD_PERIOD_BITS - 4));
+      s->Count = 4;
+    }
+}
+
+void Ppmd7_Init(CPpmd7 *p, unsigned maxOrder)
+{
+  p->MaxOrder = maxOrder;
+  RestartModel(p);
+  p->DummySee.Shift = PPMD_PERIOD_BITS;
+  p->DummySee.Summ = 0; /* unused */
+  p->DummySee.Count = 64; /* unused */
+}
+
+static CTX_PTR CreateSuccessors(CPpmd7 *p, Bool skip)
+{
+  CPpmd_State upState;
+  CTX_PTR c = p->MinContext;
+  CPpmd_Byte_Ref upBranch = (CPpmd_Byte_Ref)SUCCESSOR(p->FoundState);
+  CPpmd_State *ps[PPMD7_MAX_ORDER];
+  unsigned numPs = 0;
+  
+  if (!skip)
+    ps[numPs++] = p->FoundState;
+  
+  while (c->Suffix)
+  {
+    CPpmd_Void_Ref successor;
+    CPpmd_State *s;
+    c = SUFFIX(c);
+    if (c->NumStats != 1)
+    {
+      for (s = STATS(c); s->Symbol != p->FoundState->Symbol; s++);
+    }
+    else
+      s = ONE_STATE(c);
+    successor = SUCCESSOR(s);
+    if (successor != upBranch)
+    {
+      c = CTX(successor);
+      if (numPs == 0)
+        return c;
+      break;
+    }
+    ps[numPs++] = s;
+  }
+  
+  upState.Symbol = *(const Byte *)Ppmd7_GetPtr(p, upBranch);
+  SetSuccessor(&upState, upBranch + 1);
+  
+  if (c->NumStats == 1)
+    upState.Freq = ONE_STATE(c)->Freq;
+  else
+  {
+    UInt32 cf, s0;
+    CPpmd_State *s;
+    for (s = STATS(c); s->Symbol != upState.Symbol; s++);
+    cf = s->Freq - 1;
+    s0 = c->SummFreq - c->NumStats - cf;
+    upState.Freq = (Byte)(1 + ((2 * cf <= s0) ? (5 * cf > s0) : ((2 * cf + 3 * s0 - 1) / (2 * s0))));
+  }
+
+  do
+  {
+    /* Create Child */
+    CTX_PTR c1; /* = AllocContext(p); */
+    if (p->HiUnit != p->LoUnit)
+      c1 = (CTX_PTR)(p->HiUnit -= UNIT_SIZE);
+    else if (p->FreeList[0] != 0)
+      c1 = (CTX_PTR)RemoveNode(p, 0);
+    else
+    {
+      c1 = (CTX_PTR)AllocUnitsRare(p, 0);
+      if (!c1)
+        return NULL;
+    }
+    c1->NumStats = 1;
+    *ONE_STATE(c1) = upState;
+    c1->Suffix = REF(c);
+    SetSuccessor(ps[--numPs], REF(c1));
+    c = c1;
+  }
+  while (numPs != 0);
+  
+  return c;
+}
+
+static void SwapStates(CPpmd_State *t1, CPpmd_State *t2)
+{
+  CPpmd_State tmp = *t1;
+  *t1 = *t2;
+  *t2 = tmp;
+}
+
+static void UpdateModel(CPpmd7 *p)
+{
+  CPpmd_Void_Ref successor, fSuccessor = SUCCESSOR(p->FoundState);
+  CTX_PTR c;
+  unsigned s0, ns;
+  
+  if (p->FoundState->Freq < MAX_FREQ / 4 && p->MinContext->Suffix != 0)
+  {
+    c = SUFFIX(p->MinContext);
+    
+    if (c->NumStats == 1)
+    {
+      CPpmd_State *s = ONE_STATE(c);
+      if (s->Freq < 32)
+        s->Freq++;
+    }
+    else
+    {
+      CPpmd_State *s = STATS(c);
+      if (s->Symbol != p->FoundState->Symbol)
+      {
+        do { s++; } while (s->Symbol != p->FoundState->Symbol);
+        if (s[0].Freq >= s[-1].Freq)
+        {
+          SwapStates(&s[0], &s[-1]);
+          s--;
+        }
+      }
+      if (s->Freq < MAX_FREQ - 9)
+      {
+        s->Freq += 2;
+        c->SummFreq += 2;
+      }
+    }
+  }
+
+  if (p->OrderFall == 0)
+  {
+    p->MinContext = p->MaxContext = CreateSuccessors(p, True);
+    if (p->MinContext == 0)
+    {
+      RestartModel(p);
+      return;
+    }
+    SetSuccessor(p->FoundState, REF(p->MinContext));
+    return;
+  }
+  
+  *p->Text++ = p->FoundState->Symbol;
+  successor = REF(p->Text);
+  if (p->Text >= p->UnitsStart)
+  {
+    RestartModel(p);
+    return;
+  }
+  
+  if (fSuccessor)
+  {
+    if (fSuccessor <= successor)
+    {
+      CTX_PTR cs = CreateSuccessors(p, False);
+      if (cs == NULL)
+      {
+        RestartModel(p);
+        return;
+      }
+      fSuccessor = REF(cs);
+    }
+    if (--p->OrderFall == 0)
+    {
+      successor = fSuccessor;
+      p->Text -= (p->MaxContext != p->MinContext);
+    }
+  }
+  else
+  {
+    SetSuccessor(p->FoundState, successor);
+    fSuccessor = REF(p->MinContext);
+  }
+  
+  s0 = p->MinContext->SummFreq - (ns = p->MinContext->NumStats) - (p->FoundState->Freq - 1);
+  
+  for (c = p->MaxContext; c != p->MinContext; c = SUFFIX(c))
+  {
+    unsigned ns1;
+    UInt32 cf, sf;
+    if ((ns1 = c->NumStats) != 1)
+    {
+      if ((ns1 & 1) == 0)
+      {
+        /* Expand for one UNIT */
+        unsigned oldNU = ns1 >> 1;
+        unsigned i = U2I(oldNU);
+        if (i != U2I(oldNU + 1))
+        {
+          void *ptr = AllocUnits(p, i + 1);
+          void *oldPtr;
+          if (!ptr)
+          {
+            RestartModel(p);
+            return;
+          }
+          oldPtr = STATS(c);
+          MyMem12Cpy(ptr, oldPtr, oldNU);
+          InsertNode(p, oldPtr, i);
+          c->Stats = STATS_REF(ptr);
+        }
+      }
+      c->SummFreq = (UInt16)(c->SummFreq + (2 * ns1 < ns) + 2 * ((4 * ns1 <= ns) & (c->SummFreq <= 8 * ns1)));
+    }
+    else
+    {
+      CPpmd_State *s = (CPpmd_State*)AllocUnits(p, 0);
+      if (!s)
+      {
+        RestartModel(p);
+        return;
+      }
+      *s = *ONE_STATE(c);
+      c->Stats = REF(s);
+      if (s->Freq < MAX_FREQ / 4 - 1)
+        s->Freq <<= 1;
+      else
+        s->Freq = MAX_FREQ - 4;
+      c->SummFreq = (UInt16)(s->Freq + p->InitEsc + (ns > 3));
+    }
+    cf = 2 * (UInt32)p->FoundState->Freq * (c->SummFreq + 6);
+    sf = (UInt32)s0 + c->SummFreq;
+    if (cf < 6 * sf)
+    {
+      cf = 1 + (cf > sf) + (cf >= 4 * sf);
+      c->SummFreq += 3;
+    }
+    else
+    {
+      cf = 4 + (cf >= 9 * sf) + (cf >= 12 * sf) + (cf >= 15 * sf);
+      c->SummFreq = (UInt16)(c->SummFreq + cf);
+    }
+    {
+      CPpmd_State *s = STATS(c) + ns1;
+      SetSuccessor(s, successor);
+      s->Symbol = p->FoundState->Symbol;
+      s->Freq = (Byte)cf;
+      c->NumStats = (UInt16)(ns1 + 1);
+    }
+  }
+  p->MaxContext = p->MinContext = CTX(fSuccessor);
+}
+  
+static void Rescale(CPpmd7 *p)
+{
+  unsigned i, adder, sumFreq, escFreq;
+  CPpmd_State *stats = STATS(p->MinContext);
+  CPpmd_State *s = p->FoundState;
+  {
+    CPpmd_State tmp = *s;
+    for (; s != stats; s--)
+      s[0] = s[-1];
+    *s = tmp;
+  }
+  escFreq = p->MinContext->SummFreq - s->Freq;
+  s->Freq += 4;
+  adder = (p->OrderFall != 0);
+  s->Freq = (Byte)((s->Freq + adder) >> 1);
+  sumFreq = s->Freq;
+  
+  i = p->MinContext->NumStats - 1;
+  do
+  {
+    escFreq -= (++s)->Freq;
+    s->Freq = (Byte)((s->Freq + adder) >> 1);
+    sumFreq += s->Freq;
+    if (s[0].Freq > s[-1].Freq)
+    {
+      CPpmd_State *s1 = s;
+      CPpmd_State tmp = *s1;
+      do
+        s1[0] = s1[-1];
+      while (--s1 != stats && tmp.Freq > s1[-1].Freq);
+      *s1 = tmp;
+    }
+  }
+  while (--i);
+  
+  if (s->Freq == 0)
+  {
+    unsigned numStats = p->MinContext->NumStats;
+    unsigned n0, n1;
+    do { i++; } while ((--s)->Freq == 0);
+    escFreq += i;
+    p->MinContext->NumStats = (UInt16)(p->MinContext->NumStats - i);
+    if (p->MinContext->NumStats == 1)
+    {
+      CPpmd_State tmp = *stats;
+      do
+      {
+        tmp.Freq = (Byte)(tmp.Freq - (tmp.Freq >> 1));
+        escFreq >>= 1;
+      }
+      while (escFreq > 1);
+      InsertNode(p, stats, U2I(((numStats + 1) >> 1)));
+      *(p->FoundState = ONE_STATE(p->MinContext)) = tmp;
+      return;
+    }
+    n0 = (numStats + 1) >> 1;
+    n1 = (p->MinContext->NumStats + 1) >> 1;
+    if (n0 != n1)
+      p->MinContext->Stats = STATS_REF(ShrinkUnits(p, stats, n0, n1));
+  }
+  p->MinContext->SummFreq = (UInt16)(sumFreq + escFreq - (escFreq >> 1));
+  p->FoundState = STATS(p->MinContext);
+}
+
+CPpmd_See *Ppmd7_MakeEscFreq(CPpmd7 *p, unsigned numMasked, UInt32 *escFreq)
+{
+  CPpmd_See *see;
+  unsigned nonMasked = p->MinContext->NumStats - numMasked;
+  if (p->MinContext->NumStats != 256)
+  {
+    see = p->See[p->NS2Indx[nonMasked - 1]] +
+        (nonMasked < (unsigned)SUFFIX(p->MinContext)->NumStats - p->MinContext->NumStats) +
+        2 * (p->MinContext->SummFreq < 11 * p->MinContext->NumStats) +
+        4 * (numMasked > nonMasked) +
+        p->HiBitsFlag;
+    {
+      unsigned r = (see->Summ >> see->Shift);
+      see->Summ = (UInt16)(see->Summ - r);
+      *escFreq = r + (r == 0);
+    }
+  }
+  else
+  {
+    see = &p->DummySee;
+    *escFreq = 1;
+  }
+  return see;
+}
+
+static void NextContext(CPpmd7 *p)
+{
+  CTX_PTR c = CTX(SUCCESSOR(p->FoundState));
+  if (p->OrderFall == 0 && (Byte *)c > p->Text)
+    p->MinContext = p->MaxContext = c;
+  else
+    UpdateModel(p);
+}
+
+void Ppmd7_Update1(CPpmd7 *p)
+{
+  CPpmd_State *s = p->FoundState;
+  s->Freq += 4;
+  p->MinContext->SummFreq += 4;
+  if (s[0].Freq > s[-1].Freq)
+  {
+    SwapStates(&s[0], &s[-1]);
+    p->FoundState = --s;
+    if (s->Freq > MAX_FREQ)
+      Rescale(p);
+  }
+  NextContext(p);
+}
+
+void Ppmd7_Update1_0(CPpmd7 *p)
+{
+  p->PrevSuccess = (2 * p->FoundState->Freq > p->MinContext->SummFreq);
+  p->RunLength += p->PrevSuccess;
+  p->MinContext->SummFreq += 4;
+  if ((p->FoundState->Freq += 4) > MAX_FREQ)
+    Rescale(p);
+  NextContext(p);
+}
+
+void Ppmd7_UpdateBin(CPpmd7 *p)
+{
+  p->FoundState->Freq = (Byte)(p->FoundState->Freq + (p->FoundState->Freq < 128 ? 1: 0));
+  p->PrevSuccess = 1;
+  p->RunLength++;
+  NextContext(p);
+}
+
+void Ppmd7_Update2(CPpmd7 *p)
+{
+  p->MinContext->SummFreq += 4;
+  if ((p->FoundState->Freq += 4) > MAX_FREQ)
+    Rescale(p);
+  p->RunLength = p->InitRL;
+  UpdateModel(p);
+}
diff --git a/C/Ppmd7.h b/C/Ppmd7.h
new file mode 100755
index 00000000..96521c31
--- /dev/null
+++ b/C/Ppmd7.h
@@ -0,0 +1,140 @@
+/* Ppmd7.h -- PPMdH compression codec
+2010-03-12 : Igor Pavlov : Public domain
+This code is based on PPMd var.H (2001): Dmitry Shkarin : Public domain */
+
+/* This code supports virtual RangeDecoder and includes the implementation
+of RangeCoder from 7z, instead of RangeCoder from original PPMd var.H.
+If you need the compatibility with original PPMd var.H, you can use external RangeDecoder */
+
+#ifndef __PPMD7_H
+#define __PPMD7_H
+
+#include "Ppmd.h"
+
+EXTERN_C_BEGIN
+
+#define PPMD7_MIN_ORDER 2
+#define PPMD7_MAX_ORDER 64
+
+#define PPMD7_MIN_MEM_SIZE (1 << 11)
+#define PPMD7_MAX_MEM_SIZE (0xFFFFFFFF - 12 * 3)
+
+struct CPpmd7_Context_;
+
+typedef
+  #ifdef PPMD_32BIT
+    struct CPpmd7_Context_ *
+  #else
+    UInt32
+  #endif
+  CPpmd7_Context_Ref;
+
+typedef struct CPpmd7_Context_
+{
+  UInt16 NumStats;
+  UInt16 SummFreq;
+  CPpmd_State_Ref Stats;
+  CPpmd7_Context_Ref Suffix;
+} CPpmd7_Context;
+
+#define Ppmd7Context_OneState(p) ((CPpmd_State *)&(p)->SummFreq)
+
+typedef struct
+{
+  CPpmd7_Context *MinContext, *MaxContext;
+  CPpmd_State *FoundState;
+  unsigned OrderFall, InitEsc, PrevSuccess, MaxOrder, HiBitsFlag;
+  Int32 RunLength, InitRL; /* must be 32-bit at least */
+
+  UInt32 Size;
+  UInt32 GlueCount;
+  Byte *Base, *LoUnit, *HiUnit, *Text, *UnitsStart;
+  UInt32 AlignOffset;
+
+  Byte Indx2Units[PPMD_NUM_INDEXES];
+  Byte Units2Indx[128];
+  CPpmd_Void_Ref FreeList[PPMD_NUM_INDEXES];
+  Byte NS2Indx[256], NS2BSIndx[256], HB2Flag[256];
+  CPpmd_See DummySee, See[25][16];
+  UInt16 BinSumm[128][64];
+} CPpmd7;
+
+void Ppmd7_Construct(CPpmd7 *p);
+Bool Ppmd7_Alloc(CPpmd7 *p, UInt32 size, ISzAlloc *alloc);
+void Ppmd7_Free(CPpmd7 *p, ISzAlloc *alloc);
+void Ppmd7_Init(CPpmd7 *p, unsigned maxOrder);
+#define Ppmd7_WasAllocated(p) ((p)->Base != NULL)
+
+
+/* ---------- Internal Functions ---------- */
+
+extern const Byte PPMD7_kExpEscape[16];
+
+#ifdef PPMD_32BIT
+  #define Ppmd7_GetPtr(p, ptr) (ptr)
+  #define Ppmd7_GetContext(p, ptr) (ptr)
+  #define Ppmd7_GetStats(p, ctx) ((ctx)->Stats)
+#else
+  #define Ppmd7_GetPtr(p, offs) ((void *)((p)->Base + (offs)))
+  #define Ppmd7_GetContext(p, offs) ((CPpmd7_Context *)Ppmd7_GetPtr((p), (offs)))
+  #define Ppmd7_GetStats(p, ctx) ((CPpmd_State *)Ppmd7_GetPtr((p), ((ctx)->Stats)))
+#endif
+
+void Ppmd7_Update1(CPpmd7 *p);
+void Ppmd7_Update1_0(CPpmd7 *p);
+void Ppmd7_Update2(CPpmd7 *p);
+void Ppmd7_UpdateBin(CPpmd7 *p);
+
+#define Ppmd7_GetBinSumm(p) \
+    &p->BinSumm[Ppmd7Context_OneState(p->MinContext)->Freq - 1][p->PrevSuccess + \
+    p->NS2BSIndx[Ppmd7_GetContext(p, p->MinContext->Suffix)->NumStats - 1] + \
+    (p->HiBitsFlag = p->HB2Flag[p->FoundState->Symbol]) + \
+    2 * p->HB2Flag[Ppmd7Context_OneState(p->MinContext)->Symbol] + \
+    ((p->RunLength >> 26) & 0x20)]
+
+CPpmd_See *Ppmd7_MakeEscFreq(CPpmd7 *p, unsigned numMasked, UInt32 *scale);
+
+
+/* ---------- Decode ---------- */
+
+typedef struct
+{
+  UInt32 (*GetThreshold)(void *p, UInt32 total);
+  void (*Decode)(void *p, UInt32 start, UInt32 size);
+  UInt32 (*DecodeBit)(void *p, UInt32 size0);
+} IPpmd7_RangeDec;
+
+typedef struct
+{
+  IPpmd7_RangeDec p;
+  UInt32 Range;
+  UInt32 Code;
+  IByteIn *Stream;
+} CPpmd7z_RangeDec;
+
+void Ppmd7z_RangeDec_CreateVTable(CPpmd7z_RangeDec *p);
+Bool Ppmd7z_RangeDec_Init(CPpmd7z_RangeDec *p);
+#define Ppmd7z_RangeDec_IsFinishedOK(p) ((p)->Code == 0)
+
+int Ppmd7_DecodeSymbol(CPpmd7 *p, IPpmd7_RangeDec *rc);
+
+
+/* ---------- Encode ---------- */
+
+typedef struct
+{
+  UInt64 Low;
+  UInt32 Range;
+  Byte Cache;
+  UInt64 CacheSize;
+  IByteOut *Stream;
+} CPpmd7z_RangeEnc;
+
+void Ppmd7z_RangeEnc_Init(CPpmd7z_RangeEnc *p);
+void Ppmd7z_RangeEnc_FlushData(CPpmd7z_RangeEnc *p);
+
+void Ppmd7_EncodeSymbol(CPpmd7 *p, CPpmd7z_RangeEnc *rc, int symbol);
+
+EXTERN_C_END
+ 
+#endif
diff --git a/C/Ppmd7Dec.c b/C/Ppmd7Dec.c
new file mode 100755
index 00000000..68438d5c
--- /dev/null
+++ b/C/Ppmd7Dec.c
@@ -0,0 +1,187 @@
+/* Ppmd7Dec.c -- PPMdH Decoder
+2010-03-12 : Igor Pavlov : Public domain
+This code is based on PPMd var.H (2001): Dmitry Shkarin : Public domain */
+
+#include "Ppmd7.h"
+
+#define kTopValue (1 << 24)
+
+Bool Ppmd7z_RangeDec_Init(CPpmd7z_RangeDec *p)
+{
+  unsigned i;
+  p->Code = 0;
+  p->Range = 0xFFFFFFFF;
+  if (p->Stream->Read((void *)p->Stream) != 0)
+    return False;
+  for (i = 0; i < 4; i++)
+    p->Code = (p->Code << 8) | p->Stream->Read((void *)p->Stream);
+  return (p->Code < 0xFFFFFFFF);
+}
+
+static UInt32 Range_GetThreshold(void *pp, UInt32 total)
+{
+  CPpmd7z_RangeDec *p = (CPpmd7z_RangeDec *)pp;
+  return (p->Code) / (p->Range /= total);
+}
+
+static void Range_Normalize(CPpmd7z_RangeDec *p)
+{
+  if (p->Range < kTopValue)
+  {
+    p->Code = (p->Code << 8) | p->Stream->Read((void *)p->Stream);
+    p->Range <<= 8;
+    if (p->Range < kTopValue)
+    {
+      p->Code = (p->Code << 8) | p->Stream->Read((void *)p->Stream);
+      p->Range <<= 8;
+    }
+  }
+}
+
+static void Range_Decode(void *pp, UInt32 start, UInt32 size)
+{
+  CPpmd7z_RangeDec *p = (CPpmd7z_RangeDec *)pp;
+  p->Code -= start * p->Range;
+  p->Range *= size;
+  Range_Normalize(p);
+}
+
+static UInt32 Range_DecodeBit(void *pp, UInt32 size0)
+{
+  CPpmd7z_RangeDec *p = (CPpmd7z_RangeDec *)pp;
+  UInt32 newBound = (p->Range >> 14) * size0;
+  UInt32 symbol;
+  if (p->Code < newBound)
+  {
+    symbol = 0;
+    p->Range = newBound;
+  }
+  else
+  {
+    symbol = 1;
+    p->Code -= newBound;
+    p->Range -= newBound;
+  }
+  Range_Normalize(p);
+  return symbol;
+}
+
+void Ppmd7z_RangeDec_CreateVTable(CPpmd7z_RangeDec *p)
+{
+  p->p.GetThreshold = Range_GetThreshold;
+  p->p.Decode = Range_Decode;
+  p->p.DecodeBit = Range_DecodeBit;
+}
+
+
+#define MASK(sym) ((signed char *)charMask)[sym]
+
+int Ppmd7_DecodeSymbol(CPpmd7 *p, IPpmd7_RangeDec *rc)
+{
+  size_t charMask[256 / sizeof(size_t)];
+  if (p->MinContext->NumStats != 1)
+  {
+    CPpmd_State *s = Ppmd7_GetStats(p, p->MinContext);
+    unsigned i;
+    UInt32 count, hiCnt;
+    if ((count = rc->GetThreshold(rc, p->MinContext->SummFreq)) < (hiCnt = s->Freq))
+    {
+      Byte symbol;
+      rc->Decode(rc, 0, s->Freq);
+      p->FoundState = s;
+      symbol = s->Symbol;
+      Ppmd7_Update1_0(p);
+      return symbol;
+    }
+    p->PrevSuccess = 0;
+    i = p->MinContext->NumStats - 1;
+    do
+    {
+      if ((hiCnt += (++s)->Freq) > count)
+      {
+        Byte symbol;
+        rc->Decode(rc, hiCnt - s->Freq, s->Freq);
+        p->FoundState = s;
+        symbol = s->Symbol;
+        Ppmd7_Update1(p);
+        return symbol;
+      }
+    }
+    while (--i);
+    if (count >= p->MinContext->SummFreq)
+      return -2;
+    p->HiBitsFlag = p->HB2Flag[p->FoundState->Symbol];
+    rc->Decode(rc, hiCnt, p->MinContext->SummFreq - hiCnt);
+    PPMD_SetAllBitsIn256Bytes(charMask);
+    MASK(s->Symbol) = 0;
+    i = p->MinContext->NumStats - 1;
+    do { MASK((--s)->Symbol) = 0; } while (--i);
+  }
+  else
+  {
+    UInt16 *prob = Ppmd7_GetBinSumm(p);
+    if (rc->DecodeBit(rc, *prob) == 0)
+    {
+      Byte symbol;
+      *prob = (UInt16)PPMD_UPDATE_PROB_0(*prob);
+      symbol = (p->FoundState = Ppmd7Context_OneState(p->MinContext))->Symbol;
+      Ppmd7_UpdateBin(p);
+      return symbol;
+    }
+    *prob = (UInt16)PPMD_UPDATE_PROB_1(*prob);
+    p->InitEsc = PPMD7_kExpEscape[*prob >> 10];
+    PPMD_SetAllBitsIn256Bytes(charMask);
+    MASK(Ppmd7Context_OneState(p->MinContext)->Symbol) = 0;
+    p->PrevSuccess = 0;
+  }
+  for (;;)
+  {
+    CPpmd_State *ps[256], *s;
+    UInt32 freqSum, count, hiCnt;
+    CPpmd_See *see;
+    unsigned i, num, numMasked = p->MinContext->NumStats;
+    do
+    {
+      p->OrderFall++;
+      if (!p->MinContext->Suffix)
+        return -1;
+      p->MinContext = Ppmd7_GetContext(p, p->MinContext->Suffix);
+    }
+    while (p->MinContext->NumStats == numMasked);
+    hiCnt = 0;
+    s = Ppmd7_GetStats(p, p->MinContext);
+    i = 0;
+    num = p->MinContext->NumStats - numMasked;
+    do
+    {
+      int k = (int)(MASK(s->Symbol));
+      hiCnt += (s->Freq & k);
+      ps[i] = s++;
+      i -= k;
+    }
+    while (i != num);
+    
+    see = Ppmd7_MakeEscFreq(p, numMasked, &freqSum);
+    freqSum += hiCnt;
+    count = rc->GetThreshold(rc, freqSum);
+    
+    if (count < hiCnt)
+    {
+      Byte symbol;
+      CPpmd_State **pps = ps;
+      for (hiCnt = 0; (hiCnt += (*pps)->Freq) <= count; pps++);
+      s = *pps;
+      rc->Decode(rc, hiCnt - s->Freq, s->Freq);
+      Ppmd_See_Update(see);
+      p->FoundState = s;
+      symbol = s->Symbol;
+      Ppmd7_Update2(p);
+      return symbol;
+    }
+    if (count >= freqSum)
+      return -2;
+    rc->Decode(rc, hiCnt, freqSum - hiCnt);
+    see->Summ = (UInt16)(see->Summ + freqSum);
+    do { MASK(ps[--i]->Symbol) = 0; } while (i != 0);
+  }
+}
diff --git a/C/Ppmd7Enc.c b/C/Ppmd7Enc.c
new file mode 100755
index 00000000..8247757d
--- /dev/null
+++ b/C/Ppmd7Enc.c
@@ -0,0 +1,185 @@
+/* Ppmd7Enc.c -- PPMdH Encoder
+2010-03-12 : Igor Pavlov : Public domain
+This code is based on PPMd var.H (2001): Dmitry Shkarin : Public domain */
+
+#include "Ppmd7.h"
+
+#define kTopValue (1 << 24)
+
+void Ppmd7z_RangeEnc_Init(CPpmd7z_RangeEnc *p)
+{
+  p->Low = 0;
+  p->Range = 0xFFFFFFFF;
+  p->Cache = 0;
+  p->CacheSize = 1;
+}
+
+static void RangeEnc_ShiftLow(CPpmd7z_RangeEnc *p)
+{
+  if ((UInt32)p->Low < (UInt32)0xFF000000 || (unsigned)(p->Low >> 32) != 0)
+  {
+    Byte temp = p->Cache;
+    do
+    {
+      p->Stream->Write(p->Stream, (Byte)(temp + (Byte)(p->Low >> 32)));
+      temp = 0xFF;
+    }
+    while(--p->CacheSize != 0);
+    p->Cache = (Byte)((UInt32)p->Low >> 24);
+  }
+  p->CacheSize++;
+  p->Low = (UInt32)p->Low << 8;
+}
+
+static void RangeEnc_Encode(CPpmd7z_RangeEnc *p, UInt32 start, UInt32 size, UInt32 total)
+{
+  p->Low += start * (p->Range /= total);
+  p->Range *= size;
+  while (p->Range < kTopValue)
+  {
+    p->Range <<= 8;
+    RangeEnc_ShiftLow(p);
+  }
+}
+
+static void RangeEnc_EncodeBit_0(CPpmd7z_RangeEnc *p, UInt32 size0)
+{
+  p->Range = (p->Range >> 14) * size0;
+  while (p->Range < kTopValue)
+  {
+    p->Range <<= 8;
+    RangeEnc_ShiftLow(p);
+  }
+}
+
+static void RangeEnc_EncodeBit_1(CPpmd7z_RangeEnc *p, UInt32 size0)
+{
+  UInt32 newBound = (p->Range >> 14) * size0;
+  p->Low += newBound;
+  p->Range -= newBound;
+  while (p->Range < kTopValue)
+  {
+    p->Range <<= 8;
+    RangeEnc_ShiftLow(p);
+  }
+}
+
+void Ppmd7z_RangeEnc_FlushData(CPpmd7z_RangeEnc *p)
+{
+  unsigned i;
+  for (i = 0; i < 5; i++)
+    RangeEnc_ShiftLow(p);
+}
+
+
+#define MASK(sym) ((signed char *)charMask)[sym]
+
+void Ppmd7_EncodeSymbol(CPpmd7 *p, CPpmd7z_RangeEnc *rc, int symbol)
+{
+  size_t charMask[256 / sizeof(size_t)];
+  if (p->MinContext->NumStats != 1)
+  {
+    CPpmd_State *s = Ppmd7_GetStats(p, p->MinContext);
+    UInt32 sum;
+    unsigned i;
+    if (s->Symbol == symbol)
+    {
+      RangeEnc_Encode(rc, 0, s->Freq, p->MinContext->SummFreq);
+      p->FoundState = s;
+      Ppmd7_Update1_0(p);
+      return;
+    }
+    p->PrevSuccess = 0;
+    sum = s->Freq;
+    i = p->MinContext->NumStats - 1;
+    do
+    {
+      if ((++s)->Symbol == symbol)
+      {
+        RangeEnc_Encode(rc, sum, s->Freq, p->MinContext->SummFreq);
+        p->FoundState = s;
+        Ppmd7_Update1(p);
+        return;
+      }
+      sum += s->Freq;
+    }
+    while (--i);
+    
+    p->HiBitsFlag = p->HB2Flag[p->FoundState->Symbol];
+    PPMD_SetAllBitsIn256Bytes(charMask);
+    MASK(s->Symbol) = 0;
+    i = p->MinContext->NumStats - 1;
+    do { MASK((--s)->Symbol) = 0; } while (--i);
+    RangeEnc_Encode(rc, sum, p->MinContext->SummFreq - sum, p->MinContext->SummFreq);
+  }
+  else
+  {
+    UInt16 *prob = Ppmd7_GetBinSumm(p);
+    CPpmd_State *s = Ppmd7Context_OneState(p->MinContext);
+    if (s->Symbol == symbol)
+    {
+      RangeEnc_EncodeBit_0(rc, *prob);
+      *prob = (UInt16)PPMD_UPDATE_PROB_0(*prob);
+      p->FoundState = s;
+      Ppmd7_UpdateBin(p);
+      return;
+    }
+    else
+    {
+      RangeEnc_EncodeBit_1(rc, *prob);
+      *prob = (UInt16)PPMD_UPDATE_PROB_1(*prob);
+      p->InitEsc = PPMD7_kExpEscape[*prob >> 10];
+      PPMD_SetAllBitsIn256Bytes(charMask);
+      MASK(s->Symbol) = 0;
+      p->PrevSuccess = 0;
+    }
+  }
+  for (;;)
+  {
+    UInt32 escFreq;
+    CPpmd_See *see;
+    CPpmd_State *s;
+    UInt32 sum;
+    unsigned i, numMasked = p->MinContext->NumStats;
+    do
+    {
+      p->OrderFall++;
+      if (!p->MinContext->Suffix)
+        return; /* EndMarker (symbol = -1) */
+      p->MinContext = Ppmd7_GetContext(p, p->MinContext->Suffix);
+    }
+    while (p->MinContext->NumStats == numMasked);
+    
+    see = Ppmd7_MakeEscFreq(p, numMasked, &escFreq);
+    s = Ppmd7_GetStats(p, p->MinContext);
+    sum = 0;
+    i = p->MinContext->NumStats;
+    do
+    {
+      int cur = s->Symbol;
+      if (cur == symbol)
+      {
+        UInt32 low = sum;
+        CPpmd_State *s1 = s;
+        do
+        {
+          sum += (s->Freq & (int)(MASK(s->Symbol)));
+          s++;
+        }
+        while (--i);
+        RangeEnc_Encode(rc, low, s1->Freq, sum + escFreq);
+        Ppmd_See_Update(see);
+        p->FoundState = s1;
+        Ppmd7_Update2(p);
+        return;
+      }
+      sum += (s->Freq & (int)(MASK(cur)));
+      MASK(cur) = 0;
+      s++;
+    }
+    while (--i);
+    
+    RangeEnc_Encode(rc, sum, escFreq, sum + escFreq);
+    see->Summ = (UInt16)(see->Summ + sum + escFreq);
+  }
+}
diff --git a/C/Ppmd8.c b/C/Ppmd8.c
new file mode 100755
index 00000000..95bb9a37
--- /dev/null
+++ b/C/Ppmd8.c
@@ -0,0 +1,1116 @@
+/* Ppmd8.c -- PPMdI codec
+2010-03-15 : Igor Pavlov : Public domain
+This code is based on PPMd var.I (2002): Dmitry Shkarin : Public domain */
+
+#include <memory.h>
+
+#include "Ppmd8.h"
+
+const Byte PPMD8_kExpEscape[16] = { 25, 14, 9, 7, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2 };
+static const UInt16 kInitBinEsc[] = { 0x3CDD, 0x1F3F, 0x59BF, 0x48F3, 0x64A1, 0x5ABC, 0x6632, 0x6051};
+
+#define MAX_FREQ 124
+#define UNIT_SIZE 12
+
+#define U2B(nu) ((UInt32)(nu) * UNIT_SIZE)
+#define U2I(nu) (p->Units2Indx[(nu) - 1])
+#define I2U(indx) (p->Indx2Units[indx])
+
+#ifdef PPMD_32BIT
+  #define REF(ptr) (ptr)
+#else
+  #define REF(ptr) ((UInt32)((Byte *)(ptr) - (p)->Base))
+#endif
+
+#define STATS_REF(ptr) ((CPpmd_State_Ref)REF(ptr))
+
+#define CTX(ref) ((CPpmd8_Context *)Ppmd8_GetContext(p, ref))
+#define STATS(ctx) Ppmd8_GetStats(p, ctx)
+#define ONE_STATE(ctx) Ppmd8Context_OneState(ctx)
+#define SUFFIX(ctx) CTX((ctx)->Suffix)
+
+typedef CPpmd8_Context * CTX_PTR;
+
+struct CPpmd8_Node_;
+
+typedef
+  #ifdef PPMD_32BIT
+    struct CPpmd8_Node_ *
+  #else
+    UInt32
+  #endif
+  CPpmd8_Node_Ref;
+
+typedef struct CPpmd8_Node_
+{
+  UInt32 Stamp;
+  CPpmd8_Node_Ref Next;
+  UInt32 NU;
+} CPpmd8_Node;
+
+#ifdef PPMD_32BIT
+  #define NODE(ptr) (ptr)
+#else
+  #define NODE(offs) ((CPpmd8_Node *)(p->Base + (offs)))
+#endif
+
+#define EMPTY_NODE 0xFFFFFFFF
+
+void Ppmd8_Construct(CPpmd8 *p)
+{
+  unsigned i, k, m;
+
+  p->Base = 0;
+
+  for (i = 0, k = 0; i < PPMD_NUM_INDEXES; i++)
+  {
+    unsigned step = (i >= 12 ? 4 : (i >> 2) + 1);
+    do { p->Units2Indx[k++] = (Byte)i; } while(--step);
+    p->Indx2Units[i] = (Byte)k;
+  }
+
+  p->NS2BSIndx[0] = (0 << 1);
+  p->NS2BSIndx[1] = (1 << 1);
+  memset(p->NS2BSIndx + 2, (2 << 1), 9);
+  memset(p->NS2BSIndx + 11, (3 << 1), 256 - 11);
+
+  for (i = 0; i < 5; i++)
+    p->NS2Indx[i] = (Byte)i;
+  for (m = i, k = 1; i < 260; i++)
+  {
+    p->NS2Indx[i] = (Byte)m;
+    if (--k == 0)
+      k = (++m) - 4;
+  }
+}
+
+void Ppmd8_Free(CPpmd8 *p, ISzAlloc *alloc)
+{
+  alloc->Free(alloc, p->Base);
+  p->Size = 0;
+  p->Base = 0;
+}
+
+Bool Ppmd8_Alloc(CPpmd8 *p, UInt32 size, ISzAlloc *alloc)
+{
+  if (p->Base == 0 || p->Size != size)
+  {
+    Ppmd8_Free(p, alloc);
+    p->AlignOffset =
+      #ifdef PPMD_32BIT
+        (4 - size) & 3;
+      #else
+        4 - (size & 3);
+      #endif
+    if ((p->Base = (Byte *)alloc->Alloc(alloc, p->AlignOffset + size)) == 0)
+      return False;
+    p->Size = size;
+  }
+  return True;
+}
+
+static void InsertNode(CPpmd8 *p, void *node, unsigned indx)
+{
+  ((CPpmd8_Node *)node)->Stamp = EMPTY_NODE;
+  ((CPpmd8_Node *)node)->Next = (CPpmd8_Node_Ref)p->FreeList[indx];
+  ((CPpmd8_Node *)node)->NU = I2U(indx);
+  p->FreeList[indx] = REF(node);
+  p->Stamps[indx]++;
+}
+
+static void *RemoveNode(CPpmd8 *p, unsigned indx)
+{
+  CPpmd8_Node *node = NODE((CPpmd8_Node_Ref)p->FreeList[indx]);
+  p->FreeList[indx] = node->Next;
+  p->Stamps[indx]--;
+  return node;
+}
+
+static void SplitBlock(CPpmd8 *p, void *ptr, unsigned oldIndx, unsigned newIndx)
+{
+  unsigned i, nu = I2U(oldIndx) - I2U(newIndx);
+  ptr = (Byte *)ptr + U2B(I2U(newIndx));
+  if (I2U(i = U2I(nu)) != nu)
+  {
+    unsigned k = I2U(--i);
+    InsertNode(p, ((Byte *)ptr) + U2B(k), nu - k - 1);
+  }
+  InsertNode(p, ptr, i);
+}
+
+static void GlueFreeBlocks(CPpmd8 *p)
+{
+  CPpmd8_Node_Ref head = 0;
+  CPpmd8_Node_Ref *prev = &head;
+  unsigned i;
+
+  p->GlueCount = 1 << 13;
+  memset(p->Stamps, 0, sizeof(p->Stamps));
+  
+  /* Order-0 context is always at top UNIT, so we don't need guard NODE at the end.
+     All blocks up to p->LoUnit can be free, so we need guard NODE at LoUnit. */
+  if (p->LoUnit != p->HiUnit)
+    ((CPpmd8_Node *)p->LoUnit)->Stamp = 0;
+
+  /* Glue free blocks */
+  for (i = 0; i < PPMD_NUM_INDEXES; i++)
+  {
+    CPpmd8_Node_Ref next = (CPpmd8_Node_Ref)p->FreeList[i];
+    p->FreeList[i] = 0;
+    while (next != 0)
+    {
+      CPpmd8_Node *node = NODE(next);
+      if (node->NU != 0)
+      {
+        CPpmd8_Node *node2;
+        *prev = next;
+        prev = &(node->Next);
+        while ((node2 = node + node->NU)->Stamp == EMPTY_NODE)
+        {
+          node->NU += node2->NU;
+          node2->NU = 0;
+        }
+      }
+      next = node->Next;
+    }
+  }
+  *prev = 0;
+  
+  /* Fill lists of free blocks */
+  while (head != 0)
+  {
+    CPpmd8_Node *node = NODE(head);
+    unsigned nu;
+    head = node->Next;
+    nu = node->NU;
+    if (nu == 0)
+      continue;
+    for (; nu > 128; nu -= 128, node += 128)
+      InsertNode(p, node, PPMD_NUM_INDEXES - 1);
+    if (I2U(i = U2I(nu)) != nu)
+    {
+      unsigned k = I2U(--i);
+      InsertNode(p, node + k, nu - k - 1);
+    }
+    InsertNode(p, node, i);
+  }
+}
+
+static void *AllocUnitsRare(CPpmd8 *p, unsigned indx)
+{
+  unsigned i;
+  void *retVal;
+  if (p->GlueCount == 0)
+  {
+    GlueFreeBlocks(p);
+    if (p->FreeList[indx] != 0)
+      return RemoveNode(p, indx);
+  }
+  i = indx;
+  do
+  {
+    if (++i == PPMD_NUM_INDEXES)
+    {
+      UInt32 numBytes = U2B(I2U(indx));
+      p->GlueCount--;
+      return ((UInt32)(p->UnitsStart - p->Text) > numBytes) ? (p->UnitsStart -= numBytes) : (NULL);
+    }
+  }
+  while (p->FreeList[i] == 0);
+  retVal = RemoveNode(p, i);
+  SplitBlock(p, retVal, i, indx);
+  return retVal;
+}
+
+static void *AllocUnits(CPpmd8 *p, unsigned indx)
+{
+  UInt32 numBytes;
+  if (p->FreeList[indx] != 0)
+    return RemoveNode(p, indx);
+  numBytes = U2B(I2U(indx));
+  if (numBytes <= (UInt32)(p->HiUnit - p->LoUnit))
+  {
+    void *retVal = p->LoUnit;
+    p->LoUnit += numBytes;
+    return retVal;
+  }
+  return AllocUnitsRare(p, indx);
+}
+
+#define MyMem12Cpy(dest, src, num) \
+  { UInt32 *d = (UInt32 *)dest; const UInt32 *s = (const UInt32 *)src; UInt32 n = num; \
+    do { d[0] = s[0]; d[1] = s[1]; d[2] = s[2]; s += 3; d += 3; } while(--n); }
+
+static void *ShrinkUnits(CPpmd8 *p, void *oldPtr, unsigned oldNU, unsigned newNU)
+{
+  unsigned i0 = U2I(oldNU);
+  unsigned i1 = U2I(newNU);
+  if (i0 == i1)
+    return oldPtr;
+  if (p->FreeList[i1] != 0)
+  {
+    void *ptr = RemoveNode(p, i1);
+    MyMem12Cpy(ptr, oldPtr, newNU);
+    InsertNode(p, oldPtr, i0);
+    return ptr;
+  }
+  SplitBlock(p, oldPtr, i0, i1);
+  return oldPtr;
+}
+
+static void FreeUnits(CPpmd8 *p, void *ptr, unsigned nu)
+{
+  InsertNode(p, ptr, U2I(nu));
+}
+
+static void SpecialFreeUnit(CPpmd8 *p, void *ptr)
+{
+  if ((Byte *)ptr != p->UnitsStart)
+    InsertNode(p, ptr, 0);
+  else
+  {
+    #ifdef PPMD8_FREEZE_SUPPORT
+    *(UInt32 *)ptr = EMPTY_NODE; /* it's used for (Flags == 0xFF) check in RemoveBinContexts */
+    #endif
+    p->UnitsStart += UNIT_SIZE;
+  }
+}
+
+static void *MoveUnitsUp(CPpmd8 *p, void *oldPtr, unsigned nu)
+{
+  unsigned indx = U2I(nu);
+  void *ptr;
+  if ((Byte *)oldPtr > p->UnitsStart + 16 * 1024 || REF(oldPtr) > p->FreeList[indx])
+    return oldPtr;
+  ptr = RemoveNode(p, indx);
+  MyMem12Cpy(ptr, oldPtr, nu);
+  if ((Byte*)oldPtr != p->UnitsStart)
+    InsertNode(p, oldPtr, indx);
+  else
+    p->UnitsStart += U2B(I2U(indx));
+  return ptr;
+}
+
+static void ExpandTextArea(CPpmd8 *p)
+{
+  UInt32 count[PPMD_NUM_INDEXES];
+  unsigned i;
+  memset(count, 0, sizeof(count));
+  if (p->LoUnit != p->HiUnit)
+    ((CPpmd8_Node *)p->LoUnit)->Stamp = 0;
+  
+  {
+    CPpmd8_Node *node = (CPpmd8_Node *)p->UnitsStart;
+    for (; node->Stamp == EMPTY_NODE; node += node->NU)
+    {
+      node->Stamp = 0;
+      count[U2I(node->NU)]++;
+    }
+    p->UnitsStart = (Byte *)node;
+  }
+  
+  for (i = 0; i < PPMD_NUM_INDEXES; i++)
+  {
+    CPpmd8_Node_Ref *next = (CPpmd8_Node_Ref *)&p->FreeList[i];
+    while (count[i] != 0)
+    {
+      CPpmd8_Node *node = NODE(*next);
+      while (node->Stamp == 0)
+      {
+        *next = node->Next;
+        node = NODE(*next);
+        p->Stamps[i]--;
+        if (--count[i] == 0)
+          break;
+      }
+      next = &node->Next;
+    }
+  }
+}
+
+#define SUCCESSOR(p) ((CPpmd_Void_Ref)((p)->SuccessorLow | ((UInt32)(p)->SuccessorHigh << 16)))
+
+static void SetSuccessor(CPpmd_State *p, CPpmd_Void_Ref v)
+{
+  (p)->SuccessorLow = (UInt16)((UInt32)(v) & 0xFFFF);
+  (p)->SuccessorHigh = (UInt16)(((UInt32)(v) >> 16) & 0xFFFF);
+}
+
+#define RESET_TEXT(offs) { p->Text = p->Base + p->AlignOffset + (offs); }
+
+static void RestartModel(CPpmd8 *p)
+{
+  unsigned i, k, m, r;
+
+  memset(p->FreeList, 0, sizeof(p->FreeList));
+  memset(p->Stamps, 0, sizeof(p->Stamps));
+  RESET_TEXT(0);
+  p->HiUnit = p->Text + p->Size;
+  p->LoUnit = p->UnitsStart = p->HiUnit - p->Size / 8 / UNIT_SIZE * 7 * UNIT_SIZE;
+  p->GlueCount = 0;
+
+  p->OrderFall = p->MaxOrder;
+  p->RunLength = p->InitRL = -(Int32)((p->MaxOrder < 12) ? p->MaxOrder : 12) - 1;
+  p->PrevSuccess = 0;
+
+  p->MinContext = p->MaxContext = (CTX_PTR)(p->HiUnit -= UNIT_SIZE); /* AllocContext(p); */
+  p->MinContext->Suffix = 0;
+  p->MinContext->NumStats = 255;
+  p->MinContext->Flags = 0;
+  p->MinContext->SummFreq = 256 + 1;
+  p->FoundState = (CPpmd_State *)p->LoUnit; /* AllocUnits(p, PPMD_NUM_INDEXES - 1); */
+  p->LoUnit += U2B(256 / 2);
+  p->MinContext->Stats = REF(p->FoundState);
+  for (i = 0; i < 256; i++)
+  {
+    CPpmd_State *s = &p->FoundState[i];
+    s->Symbol = (Byte)i;
+    s->Freq = 1;
+    SetSuccessor(s, 0);
+  }
+
+  for (i = m = 0; m < 25; m++)
+  {
+    while (p->NS2Indx[i] == m)
+      i++;
+    for (k = 0; k < 8; k++)
+    {
+      UInt16 val = (UInt16)(PPMD_BIN_SCALE - kInitBinEsc[k] / (i + 1));
+      UInt16 *dest = p->BinSumm[m] + k;
+      for (r = 0; r < 64; r += 8)
+        dest[r] = val;
+    }
+  }
+
+  for (i = m = 0; m < 24; m++)
+  {
+    while (p->NS2Indx[i + 3] == m + 3)
+      i++;
+    for (k = 0; k < 32; k++)
+    {
+      CPpmd_See *s = &p->See[m][k];
+      s->Summ = (UInt16)((2 * i + 5) << (s->Shift = PPMD_PERIOD_BITS - 4));
+      s->Count = 7;
+    }
+  }
+}
+
+void Ppmd8_Init(CPpmd8 *p, unsigned maxOrder, unsigned restoreMethod)
+{
+  p->MaxOrder = maxOrder;
+  p->RestoreMethod = restoreMethod;
+  RestartModel(p);
+  p->DummySee.Shift = PPMD_PERIOD_BITS;
+  p->DummySee.Summ = 0; /* unused */
+  p->DummySee.Count = 64; /* unused */
+}
+
+static void Refresh(CPpmd8 *p, CTX_PTR ctx, unsigned oldNU, unsigned scale)
+{
+  unsigned i = ctx->NumStats, escFreq, sumFreq, flags;
+  CPpmd_State *s = (CPpmd_State *)ShrinkUnits(p, STATS(ctx), oldNU, (i + 2) >> 1);
+  ctx->Stats = REF(s);
+  flags = (ctx->Flags & (0x10 + 0x04 * scale)) + 0x08 * (s->Symbol >= 0x40);
+  escFreq = ctx->SummFreq - s->Freq;
+  sumFreq = (s->Freq = (Byte)((s->Freq + scale) >> scale));
+  do
+  {
+    escFreq -= (++s)->Freq;
+    sumFreq += (s->Freq = (Byte)((s->Freq + scale) >> scale));
+    flags |= 0x08 * (s->Symbol >= 0x40);
+  }
+  while (--i);
+  ctx->SummFreq = (UInt16)(sumFreq + ((escFreq + scale) >> scale));
+  ctx->Flags = (Byte)flags;
+}
+
+static void SwapStates(CPpmd_State *t1, CPpmd_State *t2)
+{
+  CPpmd_State tmp = *t1;
+  *t1 = *t2;
+  *t2 = tmp;
+}
+
+static CPpmd_Void_Ref CutOff(CPpmd8 *p, CTX_PTR ctx, unsigned order)
+{
+  int i;
+  unsigned tmp;
+  CPpmd_State *s;
+  
+  if (!ctx->NumStats)
+  {
+    s = ONE_STATE(ctx);
+    if ((Byte *)Ppmd8_GetPtr(p, SUCCESSOR(s)) >= p->UnitsStart)
+    {
+      if (order < p->MaxOrder)
+        SetSuccessor(s, CutOff(p, CTX(SUCCESSOR(s)), order + 1));
+      else
+        SetSuccessor(s, 0);
+      if (SUCCESSOR(s) || order <= 9) /* O_BOUND */
+        return REF(ctx);
+    }
+    SpecialFreeUnit(p, ctx);
+    return 0;
+  }
+
+  ctx->Stats = STATS_REF(MoveUnitsUp(p, STATS(ctx), tmp = ((unsigned)ctx->NumStats + 2) >> 1));
+
+  for (s = STATS(ctx) + (i = ctx->NumStats); s >= STATS(ctx); s--)
+    if ((Byte *)Ppmd8_GetPtr(p, SUCCESSOR(s)) < p->UnitsStart)
+    {
+      CPpmd_State *s2 = STATS(ctx) + (i--);
+      SetSuccessor(s, 0);
+      SwapStates(s, s2);
+    }
+    else if (order < p->MaxOrder)
+      SetSuccessor(s, CutOff(p, CTX(SUCCESSOR(s)), order + 1));
+    else
+      SetSuccessor(s, 0);
+    
+  if (i != ctx->NumStats && order)
+  {
+    ctx->NumStats = (Byte)i;
+    s = STATS(ctx);
+    if (i < 0)
+    {
+      FreeUnits(p, s, tmp);
+      SpecialFreeUnit(p, ctx);
+      return 0;
+    }
+    if (i == 0)
+    {
+      ctx->Flags = (ctx->Flags & 0x10) + 0x08 * (s->Symbol >= 0x40);
+      *ONE_STATE(ctx) = *s;
+      FreeUnits(p, s, tmp);
+      ONE_STATE(ctx)->Freq = (Byte)((unsigned)ONE_STATE(ctx)->Freq + 11) >> 3;
+    }
+    else
+      Refresh(p, ctx, tmp, ctx->SummFreq > 16 * i);
+  }
+  return REF(ctx);
+}
+
+#ifdef PPMD8_FREEZE_SUPPORT
+static CPpmd_Void_Ref RemoveBinContexts(CPpmd8 *p, CTX_PTR ctx, unsigned order)
+{
+  CPpmd_State *s;
+  if (!ctx->NumStats)
+  {
+    s = ONE_STATE(ctx);
+    if ((Byte *)Ppmd8_GetPtr(p, SUCCESSOR(s)) >= p->UnitsStart && order < p->MaxOrder)
+      SetSuccessor(s, RemoveBinContexts(p, CTX(SUCCESSOR(s)), order + 1));
+    else
+      SetSuccessor(s, 0);
+    /* Suffix context can be removed already, since different (high-order)
+       Successors may refer to same context. So we check Flags == 0xFF (Stamp == EMPTY_NODE) */
+    if (!SUCCESSOR(s) && (!SUFFIX(ctx)->NumStats || SUFFIX(ctx)->Flags == 0xFF))
+    {
+      FreeUnits(p, ctx, 1);
+      return 0;
+    }
+    else
+      return REF(ctx);
+  }
+
+  for (s = STATS(ctx) + ctx->NumStats; s >= STATS(ctx); s--)
+    if ((Byte *)Ppmd8_GetPtr(p, SUCCESSOR(s)) >= p->UnitsStart && order < p->MaxOrder)
+      SetSuccessor(s, RemoveBinContexts(p, CTX(SUCCESSOR(s)), order + 1));
+    else
+      SetSuccessor(s, 0);
+  
+  return REF(ctx);
+}
+#endif
+
+static UInt32 GetUsedMemory(const CPpmd8 *p)
+{
+  UInt32 v = 0;
+  unsigned i;
+  for (i = 0; i < PPMD_NUM_INDEXES; i++)
+    v += p->Stamps[i] * I2U(i);
+  return p->Size - (UInt32)(p->HiUnit - p->LoUnit) - (UInt32)(p->UnitsStart - p->Text) - U2B(v);
+}
+
+#ifdef PPMD8_FREEZE_SUPPORT
+  #define RESTORE_MODEL(c1, fSuccessor) RestoreModel(p, c1, fSuccessor)
+#else
+  #define RESTORE_MODEL(c1, fSuccessor) RestoreModel(p, c1)
+#endif
+
+static void RestoreModel(CPpmd8 *p, CTX_PTR c1
+    #ifdef PPMD8_FREEZE_SUPPORT
+    , CTX_PTR fSuccessor
+    #endif
+    )
+{
+  CTX_PTR c;
+  CPpmd_State *s;
+  RESET_TEXT(0);
+  for (c = p->MaxContext; c != c1; c = SUFFIX(c))
+    if (--(c->NumStats) == 0)
+    {
+      s = STATS(c);
+      c->Flags = (c->Flags & 0x10) + 0x08 * (s->Symbol >= 0x40);
+      *ONE_STATE(c) = *s;
+      SpecialFreeUnit(p, s);
+      ONE_STATE(c)->Freq = (ONE_STATE(c)->Freq + 11) >> 3;
+    }
+    else
+      Refresh(p, c, (c->NumStats+3) >> 1, 0);
+ 
+  for (; c != p->MinContext; c = SUFFIX(c))
+    if (!c->NumStats)
+      ONE_STATE(c)->Freq -= ONE_STATE(c)->Freq >> 1;
+    else if ((c->SummFreq += 4) > 128 + 4 * c->NumStats)
+      Refresh(p, c, (c->NumStats + 2) >> 1, 1);
+
+  #ifdef PPMD8_FREEZE_SUPPORT
+  if (p->RestoreMethod > PPMD8_RESTORE_METHOD_FREEZE)
+  {
+    p->MaxContext = fSuccessor;
+    p->GlueCount += !(p->Stamps[1] & 1);
+  }
+  else if (p->RestoreMethod == PPMD8_RESTORE_METHOD_FREEZE)
+  {
+    while (p->MaxContext->Suffix)
+      p->MaxContext = SUFFIX(p->MaxContext);
+    RemoveBinContexts(p, p->MaxContext, 0);
+    p->RestoreMethod++;
+    p->GlueCount = 0;
+    p->OrderFall = p->MaxOrder;
+  }
+  else
+  #endif
+  if (p->RestoreMethod == PPMD8_RESTORE_METHOD_RESTART || GetUsedMemory(p) < (p->Size >> 1))
+    RestartModel(p);
+  else
+  {
+    while (p->MaxContext->Suffix)
+      p->MaxContext = SUFFIX(p->MaxContext);
+    do
+    {
+      CutOff(p, p->MaxContext, 0);
+      ExpandTextArea(p);
+    }
+    while (GetUsedMemory(p) > 3 * (p->Size >> 2));
+    p->GlueCount = 0;
+    p->OrderFall = p->MaxOrder;
+  }
+}
+
+static CTX_PTR CreateSuccessors(CPpmd8 *p, Bool skip, CPpmd_State *s1, CTX_PTR c)
+{
+  CPpmd_State upState;
+  Byte flags;
+  CPpmd_Byte_Ref upBranch = (CPpmd_Byte_Ref)SUCCESSOR(p->FoundState);
+  /* fixed over Shkarin's code. Maybe it could work without + 1 too. */
+  CPpmd_State *ps[PPMD8_MAX_ORDER + 1];
+  unsigned numPs = 0;
+  
+  if (!skip)
+    ps[numPs++] = p->FoundState;
+  
+  while (c->Suffix)
+  {
+    CPpmd_Void_Ref successor;
+    CPpmd_State *s;
+    c = SUFFIX(c);
+    if (s1)
+    {
+      s = s1;
+      s1 = NULL;
+    }
+    else if (c->NumStats != 0)
+    {
+      for (s = STATS(c); s->Symbol != p->FoundState->Symbol; s++);
+      if (s->Freq < MAX_FREQ - 9)
+      {
+        s->Freq++;
+        c->SummFreq++;
+      }
+    }
+    else
+    {
+      s = ONE_STATE(c);
+      s->Freq += (!SUFFIX(c)->NumStats & (s->Freq < 24));
+    }
+    successor = SUCCESSOR(s);
+    if (successor != upBranch)
+    {
+      c = CTX(successor);
+      if (numPs == 0)
+        return c;
+      break;
+    }
+    ps[numPs++] = s;
+  }
+  
+  upState.Symbol = *(const Byte *)Ppmd8_GetPtr(p, upBranch);
+  SetSuccessor(&upState, upBranch + 1);
+  flags = 0x10 * (p->FoundState->Symbol >= 0x40) + 0x08 * (upState.Symbol >= 0x40);
+
+  if (c->NumStats == 0)
+    upState.Freq = ONE_STATE(c)->Freq;
+  else
+  {
+    UInt32 cf, s0;
+    CPpmd_State *s;
+    for (s = STATS(c); s->Symbol != upState.Symbol; s++);
+    cf = s->Freq - 1;
+    s0 = c->SummFreq - c->NumStats - cf;
+    upState.Freq = (Byte)(1 + ((2 * cf <= s0) ? (5 * cf > s0) : ((cf + 2 * s0 - 3) / s0)));
+  }
+
+  do
+  {
+    /* Create Child */
+    CTX_PTR c1; /* = AllocContext(p); */
+    if (p->HiUnit != p->LoUnit)
+      c1 = (CTX_PTR)(p->HiUnit -= UNIT_SIZE);
+    else if (p->FreeList[0] != 0)
+      c1 = (CTX_PTR)RemoveNode(p, 0);
+    else
+    {
+      c1 = (CTX_PTR)AllocUnitsRare(p, 0);
+      if (!c1)
+        return NULL;
+    }
+    c1->NumStats = 0;
+    c1->Flags = flags;
+    *ONE_STATE(c1) = upState;
+    c1->Suffix = REF(c);
+    SetSuccessor(ps[--numPs], REF(c1));
+    c = c1;
+  }
+  while (numPs != 0);
+  
+  return c;
+}
+
+static CTX_PTR ReduceOrder(CPpmd8 *p, CPpmd_State *s1, CTX_PTR c)
+{
+  CPpmd_State *s = NULL;
+  CTX_PTR c1 = c;
+  CPpmd_Void_Ref upBranch = REF(p->Text);
+  
+  #ifdef PPMD8_FREEZE_SUPPORT
+  /* The BUG in Shkarin's code was fixed: ps could overflow in CUT_OFF mode. */
+  CPpmd_State *ps[PPMD8_MAX_ORDER + 1];
+  unsigned numPs = 0;
+  ps[numPs++] = p->FoundState;
+  #endif
+
+  SetSuccessor(p->FoundState, upBranch);
+  p->OrderFall++;
+
+  for (;;)
+  {
+    if (s1)
+    {
+      c = SUFFIX(c);
+      s = s1;
+      s1 = NULL;
+    }
+    else
+    {
+      if (!c->Suffix)
+      {
+        #ifdef PPMD8_FREEZE_SUPPORT
+        if (p->RestoreMethod > PPMD8_RESTORE_METHOD_FREEZE)
+        {
+          do { SetSuccessor(ps[--numPs], REF(c)); } while (numPs);
+          RESET_TEXT(1);
+          p->OrderFall = 1;
+        }
+        #endif
+        return c;
+      }
+      c = SUFFIX(c);
+      if (c->NumStats)
+      {
+        if ((s = STATS(c))->Symbol != p->FoundState->Symbol)
+          do { s++; } while (s->Symbol != p->FoundState->Symbol);
+        if (s->Freq < MAX_FREQ - 9)
+        {
+          s->Freq += 2;
+          c->SummFreq += 2;
+        }
+      }
+      else
+      {
+        s = ONE_STATE(c);
+        s->Freq += (s->Freq < 32);
+      }
+    }
+    if (SUCCESSOR(s))
+      break;
+    #ifdef PPMD8_FREEZE_SUPPORT
+    ps[numPs++] = s;
+    #endif
+    SetSuccessor(s, upBranch);
+    p->OrderFall++;
+  }
+  
+  #ifdef PPMD8_FREEZE_SUPPORT
+  if (p->RestoreMethod > PPMD8_RESTORE_METHOD_FREEZE)
+  {
+    c = CTX(SUCCESSOR(s));
+    do { SetSuccessor(ps[--numPs], REF(c)); } while (numPs);
+    RESET_TEXT(1);
+    p->OrderFall = 1;
+    return c;
+  }
+  else
+  #endif
+  if (SUCCESSOR(s) <= upBranch)
+  {
+    CTX_PTR successor;
+    CPpmd_State *s1 = p->FoundState;
+    p->FoundState = s;
+
+    successor = CreateSuccessors(p, False, NULL, c);
+    if (successor == NULL)
+      SetSuccessor(s, 0);
+    else
+      SetSuccessor(s, REF(successor));
+    p->FoundState = s1;
+  }
+  
+  if (p->OrderFall == 1 && c1 == p->MaxContext)
+  {
+    SetSuccessor(p->FoundState, SUCCESSOR(s));
+    p->Text--;
+  }
+  if (SUCCESSOR(s) == 0)
+    return NULL;
+  return CTX(SUCCESSOR(s));
+}
+
+static void UpdateModel(CPpmd8 *p)
+{
+  CPpmd_Void_Ref successor, fSuccessor = SUCCESSOR(p->FoundState);
+  CTX_PTR c;
+  unsigned s0, ns, fFreq = p->FoundState->Freq;
+  Byte flag, fSymbol = p->FoundState->Symbol;
+  CPpmd_State *s = NULL;
+  
+  if (p->FoundState->Freq < MAX_FREQ / 4 && p->MinContext->Suffix != 0)
+  {
+    c = SUFFIX(p->MinContext);
+    
+    if (c->NumStats == 0)
+    {
+      s = ONE_STATE(c);
+      if (s->Freq < 32)
+        s->Freq++;
+    }
+    else
+    {
+      s = STATS(c);
+      if (s->Symbol != p->FoundState->Symbol)
+      {
+        do { s++; } while (s->Symbol != p->FoundState->Symbol);
+        if (s[0].Freq >= s[-1].Freq)
+        {
+          SwapStates(&s[0], &s[-1]);
+          s--;
+        }
+      }
+      if (s->Freq < MAX_FREQ - 9)
+      {
+        s->Freq += 2;
+        c->SummFreq += 2;
+      }
+    }
+  }
+  
+  c = p->MaxContext;
+  if (p->OrderFall == 0 && fSuccessor)
+  {
+    CTX_PTR cs = CreateSuccessors(p, True, s, p->MinContext);
+    if (cs == 0)
+    {
+      SetSuccessor(p->FoundState, 0);
+      RESTORE_MODEL(c, CTX(fSuccessor));
+    }
+    else
+    {
+      SetSuccessor(p->FoundState, REF(cs));
+      p->MaxContext = cs;
+    }
+    return;
+  }
+  
+  *p->Text++ = p->FoundState->Symbol;
+  successor = REF(p->Text);
+  if (p->Text >= p->UnitsStart)
+  {
+    RESTORE_MODEL(c, CTX(fSuccessor)); /* check it */
+    return;
+  }
+  
+  if (!fSuccessor)
+  {
+    CTX_PTR cs = ReduceOrder(p, s, p->MinContext);
+    if (cs == NULL)
+    {
+      RESTORE_MODEL(c, 0);
+      return;
+    }
+    fSuccessor = REF(cs);
+  }
+  else if ((Byte *)Ppmd8_GetPtr(p, fSuccessor) < p->UnitsStart)
+  {
+    CTX_PTR cs = CreateSuccessors(p, False, s, p->MinContext);
+    if (cs == NULL)
+    {
+      RESTORE_MODEL(c, 0);
+      return;
+    }
+    fSuccessor = REF(cs);
+  }
+  
+  if (--p->OrderFall == 0)
+  {
+    successor = fSuccessor;
+    p->Text -= (p->MaxContext != p->MinContext);
+  }
+  #ifdef PPMD8_FREEZE_SUPPORT
+  else if (p->RestoreMethod > PPMD8_RESTORE_METHOD_FREEZE)
+  {
+    successor = fSuccessor;
+    RESET_TEXT(0);
+    p->OrderFall = 0;
+  }
+  #endif
+  
+  s0 = p->MinContext->SummFreq - (ns = p->MinContext->NumStats) - fFreq;
+  flag = 0x08 * (fSymbol >= 0x40);
+  
+  for (; c != p->MinContext; c = SUFFIX(c))
+  {
+    unsigned ns1;
+    UInt32 cf, sf;
+    if ((ns1 = c->NumStats) != 0)
+    {
+      if ((ns1 & 1) != 0)
+      {
+        /* Expand for one UNIT */
+        unsigned oldNU = (ns1 + 1) >> 1;
+        unsigned i = U2I(oldNU);
+        if (i != U2I(oldNU + 1))
+        {
+          void *ptr = AllocUnits(p, i + 1);
+          void *oldPtr;
+          if (!ptr)
+          {
+            RESTORE_MODEL(c, CTX(fSuccessor));
+            return;
+          }
+          oldPtr = STATS(c);
+          MyMem12Cpy(ptr, oldPtr, oldNU);
+          InsertNode(p, oldPtr, i);
+          c->Stats = STATS_REF(ptr);
+        }
+      }
+      c->SummFreq = (UInt16)(c->SummFreq + (3 * ns1 + 1 < ns));
+    }
+    else
+    {
+      CPpmd_State *s = (CPpmd_State*)AllocUnits(p, 0);
+      if (!s)
+      {
+        RESTORE_MODEL(c, CTX(fSuccessor));
+        return;
+      }
+      *s = *ONE_STATE(c);
+      c->Stats = REF(s);
+      if (s->Freq < MAX_FREQ / 4 - 1)
+        s->Freq <<= 1;
+      else
+        s->Freq = MAX_FREQ - 4;
+      c->SummFreq = (UInt16)(s->Freq + p->InitEsc + (ns > 2));
+    }
+    cf = 2 * fFreq * (c->SummFreq + 6);
+    sf = (UInt32)s0 + c->SummFreq;
+    if (cf < 6 * sf)
+    {
+      cf = 1 + (cf > sf) + (cf >= 4 * sf);
+      c->SummFreq += 4;
+    }
+    else
+    {
+      cf = 4 + (cf > 9 * sf) + (cf > 12 * sf) + (cf > 15 * sf);
+      c->SummFreq = (UInt16)(c->SummFreq + cf);
+    }
+    {
+      CPpmd_State *s = STATS(c) + ns1 + 1;
+      SetSuccessor(s, successor);
+      s->Symbol = fSymbol;
+      s->Freq = (Byte)cf;
+      c->Flags |= flag;
+      c->NumStats = (Byte)(ns1 + 1);
+    }
+  }
+  p->MaxContext = p->MinContext = CTX(fSuccessor);
+}
+  
+static void Rescale(CPpmd8 *p)
+{
+  unsigned i, adder, sumFreq, escFreq;
+  CPpmd_State *stats = STATS(p->MinContext);
+  CPpmd_State *s = p->FoundState;
+  {
+    CPpmd_State tmp = *s;
+    for (; s != stats; s--)
+      s[0] = s[-1];
+    *s = tmp;
+  }
+  escFreq = p->MinContext->SummFreq - s->Freq;
+  s->Freq += 4;
+  adder = (p->OrderFall != 0
+      #ifdef PPMD8_FREEZE_SUPPORT
+      || p->RestoreMethod > PPMD8_RESTORE_METHOD_FREEZE
+      #endif
+      );
+  s->Freq = (Byte)((s->Freq + adder) >> 1);
+  sumFreq = s->Freq;
+  
+  i = p->MinContext->NumStats;
+  do
+  {
+    escFreq -= (++s)->Freq;
+    s->Freq = (Byte)((s->Freq + adder) >> 1);
+    sumFreq += s->Freq;
+    if (s[0].Freq > s[-1].Freq)
+    {
+      CPpmd_State *s1 = s;
+      CPpmd_State tmp = *s1;
+      do
+        s1[0] = s1[-1];
+      while (--s1 != stats && tmp.Freq > s1[-1].Freq);
+      *s1 = tmp;
+    }
+  }
+  while (--i);
+  
+  if (s->Freq == 0)
+  {
+    unsigned numStats = p->MinContext->NumStats;
+    unsigned n0, n1;
+    do { i++; } while ((--s)->Freq == 0);
+    escFreq += i;
+    p->MinContext->NumStats = (Byte)(p->MinContext->NumStats - i);
+    if (p->MinContext->NumStats == 0)
+    {
+      CPpmd_State tmp = *stats;
+      tmp.Freq = (Byte)((2 * tmp.Freq + escFreq - 1) / escFreq);
+      if (tmp.Freq > MAX_FREQ / 3)
+        tmp.Freq = MAX_FREQ / 3;
+      InsertNode(p, stats, U2I((numStats + 2) >> 1));
+      p->MinContext->Flags = (p->MinContext->Flags & 0x10) + 0x08 * (tmp.Symbol >= 0x40);
+      *(p->FoundState = ONE_STATE(p->MinContext)) = tmp;
+      return;
+    }
+    n0 = (numStats + 2) >> 1;
+    n1 = (p->MinContext->NumStats + 2) >> 1;
+    if (n0 != n1)
+      p->MinContext->Stats = STATS_REF(ShrinkUnits(p, stats, n0, n1));
+    p->MinContext->Flags &= ~0x08;
+    p->MinContext->Flags |= 0x08 * ((s = STATS(p->MinContext))->Symbol >= 0x40);
+    i = p->MinContext->NumStats;
+    do { p->MinContext->Flags |= 0x08*((++s)->Symbol >= 0x40); } while (--i);
+  }
+  p->MinContext->SummFreq = (UInt16)(sumFreq + escFreq - (escFreq >> 1));
+  p->MinContext->Flags |= 0x4;
+  p->FoundState = STATS(p->MinContext);
+}
+
+CPpmd_See *Ppmd8_MakeEscFreq(CPpmd8 *p, unsigned numMasked1, UInt32 *escFreq)
+{
+  CPpmd_See *see;
+  if (p->MinContext->NumStats != 0xFF)
+  {
+    see = p->See[p->NS2Indx[p->MinContext->NumStats + 2] - 3] +
+        (p->MinContext->SummFreq > 11 * ((unsigned)p->MinContext->NumStats + 1)) +
+        2 * (2 * (unsigned)p->MinContext->NumStats <
+        ((unsigned)SUFFIX(p->MinContext)->NumStats + numMasked1)) +
+        p->MinContext->Flags;
+    {
+      unsigned r = (see->Summ >> see->Shift);
+      see->Summ = (UInt16)(see->Summ - r);
+      *escFreq = r + (r == 0);
+    }
+  }
+  else
+  {
+    see = &p->DummySee;
+    *escFreq = 1;
+  }
+  return see;
+}
+
+static void NextContext(CPpmd8 *p)
+{
+  CTX_PTR c = CTX(SUCCESSOR(p->FoundState));
+  if (p->OrderFall == 0 && (Byte *)c >= p->UnitsStart)
+    p->MinContext = p->MaxContext = c;
+  else
+  {
+    UpdateModel(p);
+    p->MinContext = p->MaxContext;
+  }
+}
+
+void Ppmd8_Update1(CPpmd8 *p)
+{
+  CPpmd_State *s = p->FoundState;
+  s->Freq += 4;
+  p->MinContext->SummFreq += 4;
+  if (s[0].Freq > s[-1].Freq)
+  {
+    SwapStates(&s[0], &s[-1]);
+    p->FoundState = --s;
+    if (s->Freq > MAX_FREQ)
+      Rescale(p);
+  }
+  NextContext(p);
+}
+
+void Ppmd8_Update1_0(CPpmd8 *p)
+{
+  p->PrevSuccess = (2 * p->FoundState->Freq >= p->MinContext->SummFreq);
+  p->RunLength += p->PrevSuccess;
+  p->MinContext->SummFreq += 4;
+  if ((p->FoundState->Freq += 4) > MAX_FREQ)
+    Rescale(p);
+  NextContext(p);
+}
+
+void Ppmd8_UpdateBin(CPpmd8 *p)
+{
+  p->FoundState->Freq = (Byte)(p->FoundState->Freq + (p->FoundState->Freq < 196));
+  p->PrevSuccess = 1;
+  p->RunLength++;
+  NextContext(p);
+}
+
+void Ppmd8_Update2(CPpmd8 *p)
+{
+  p->MinContext->SummFreq += 4;
+  if ((p->FoundState->Freq += 4) > MAX_FREQ)
+    Rescale(p);
+  p->RunLength = p->InitRL;
+  UpdateModel(p);
+  p->MinContext = p->MaxContext;
+}
+
+/* H->I changes:
+  NS2Indx
+  GlewCount, and Glue method
+  BinSum
+  See / EscFreq
+  CreateSuccessors updates more suffix contexts
+  UpdateModel consts.
+  PrevSuccess Update
+*/
diff --git a/C/Ppmd8.h b/C/Ppmd8.h
new file mode 100755
index 00000000..e585b70e
--- /dev/null
+++ b/C/Ppmd8.h
@@ -0,0 +1,132 @@
+/* Ppmd8.h -- PPMdI codec
+2010-03-12 : Igor Pavlov : Public domain
+This code is based on:
+  PPMd var.I (2002): Dmitry Shkarin : Public domain
+  Carryless rangecoder (1999): Dmitry Subbotin : Public domain */
+
+#ifndef __PPMD8_H
+#define __PPMD8_H
+
+#include "Ppmd.h"
+
+EXTERN_C_BEGIN
+
+#define PPMD8_MIN_ORDER 2
+#define PPMD8_MAX_ORDER 16
+
+struct CPpmd8_Context_;
+
+typedef
+  #ifdef PPMD_32BIT
+    struct CPpmd8_Context_ *
+  #else
+    UInt32
+  #endif
+  CPpmd8_Context_Ref;
+
+typedef struct CPpmd8_Context_
+{
+  Byte NumStats;
+  Byte Flags;
+  UInt16 SummFreq;
+  CPpmd_State_Ref Stats;
+  CPpmd8_Context_Ref Suffix;
+} CPpmd8_Context;
+
+#define Ppmd8Context_OneState(p) ((CPpmd_State *)&(p)->SummFreq)
+
+/* There is some bug in FREEZE mode (including original code,
+so we disable FREEZE mode support */
+
+enum
+{
+  PPMD8_RESTORE_METHOD_RESTART,
+  PPMD8_RESTORE_METHOD_CUT_OFF
+  #ifdef PPMD8_FREEZE_SUPPORT
+  , PPMD8_RESTORE_METHOD_FREEZE
+  #endif
+};
+
+typedef struct
+{
+  CPpmd8_Context *MinContext, *MaxContext;
+  CPpmd_State *FoundState;
+  unsigned OrderFall, InitEsc, PrevSuccess, MaxOrder;
+  Int32 RunLength, InitRL; /* must be 32-bit at least */
+
+  UInt32 Size;
+  UInt32 GlueCount;
+  Byte *Base, *LoUnit, *HiUnit, *Text, *UnitsStart;
+  UInt32 AlignOffset;
+  unsigned RestoreMethod;
+
+  /* Range Coder */
+  UInt32 Range;
+  UInt32 Code;
+  UInt32 Low;
+  union
+  {
+    IByteIn *In;
+    IByteOut *Out;
+  } Stream;
+
+  Byte Indx2Units[PPMD_NUM_INDEXES];
+  Byte Units2Indx[128];
+  CPpmd_Void_Ref FreeList[PPMD_NUM_INDEXES];
+  UInt32 Stamps[PPMD_NUM_INDEXES];
+
+  Byte NS2BSIndx[256], NS2Indx[260];
+  CPpmd_See DummySee, See[24][32];
+  UInt16 BinSumm[25][64];
+} CPpmd8;
+
+void Ppmd8_Construct(CPpmd8 *p);
+Bool Ppmd8_Alloc(CPpmd8 *p, UInt32 size, ISzAlloc *alloc);
+void Ppmd8_Free(CPpmd8 *p, ISzAlloc *alloc);
+void Ppmd8_Init(CPpmd8 *p, unsigned maxOrder, unsigned restoreMethod);
+#define Ppmd8_WasAllocated(p) ((p)->Base != NULL)
+
+
+/* ---------- Internal Functions ---------- */
+
+extern const Byte PPMD8_kExpEscape[16];
+
+#ifdef PPMD_32BIT
+  #define Ppmd8_GetPtr(p, ptr) (ptr)
+  #define Ppmd8_GetContext(p, ptr) (ptr)
+  #define Ppmd8_GetStats(p, ctx) ((ctx)->Stats)
+#else
+  #define Ppmd8_GetPtr(p, offs) ((void *)((p)->Base + (offs)))
+  #define Ppmd8_GetContext(p, offs) ((CPpmd8_Context *)Ppmd8_GetPtr((p), (offs)))
+  #define Ppmd8_GetStats(p, ctx) ((CPpmd_State *)Ppmd8_GetPtr((p), ((ctx)->Stats)))
+#endif
+
+void Ppmd8_Update1(CPpmd8 *p);
+void Ppmd8_Update1_0(CPpmd8 *p);
+void Ppmd8_Update2(CPpmd8 *p);
+void Ppmd8_UpdateBin(CPpmd8 *p);
+
+#define Ppmd8_GetBinSumm(p) \
+    &p->BinSumm[p->NS2Indx[Ppmd8Context_OneState(p->MinContext)->Freq - 1]][ \
+    p->NS2BSIndx[Ppmd8_GetContext(p, p->MinContext->Suffix)->NumStats] + \
+    p->PrevSuccess + p->MinContext->Flags + ((p->RunLength >> 26) & 0x20)]
+
+CPpmd_See *Ppmd8_MakeEscFreq(CPpmd8 *p, unsigned numMasked, UInt32 *scale);
+
+
+/* ---------- Decode ---------- */
+
+Bool Ppmd8_RangeDec_Init(CPpmd8 *p);
+#define Ppmd8_RangeDec_IsFinishedOK(p) ((p)->Code == 0)
+int Ppmd8_DecodeSymbol(CPpmd8 *p); /* returns: -1 as EndMarker, -2 as DataError */
+
+
+/* ---------- Encode ---------- */
+
+#define Ppmd8_RangeEnc_Init(p) { (p)->Low = 0; (p)->Range = 0xFFFFFFFF; }
+void Ppmd8_RangeEnc_FlushData(CPpmd8 *p);
+void Ppmd8_EncodeSymbol(CPpmd8 *p, int symbol); /* symbol = -1 means EndMarker */
+
+EXTERN_C_END
+ 
+#endif
diff --git a/C/Ppmd8Dec.c b/C/Ppmd8Dec.c
new file mode 100755
index 00000000..f89f58f0
--- /dev/null
+++ b/C/Ppmd8Dec.c
@@ -0,0 +1,155 @@
+/* Ppmd8Dec.c -- PPMdI Decoder
+2010-03-12 : Igor Pavlov : Public domain
+This code is based on:
+  PPMd var.I (2002): Dmitry Shkarin : Public domain
+  Carryless rangecoder (1999): Dmitry Subbotin : Public domain */
+
+#include "Ppmd8.h"
+
+#define kTop (1 << 24)
+#define kBot (1 << 15)
+
+Bool Ppmd8_RangeDec_Init(CPpmd8 *p)
+{
+  unsigned i;
+  p->Low = 0;
+  p->Range = 0xFFFFFFFF;
+  p->Code = 0;
+  for (i = 0; i < 4; i++)
+    p->Code = (p->Code << 8) | p->Stream.In->Read(p->Stream.In);
+  return (p->Code < 0xFFFFFFFF);
+}
+
+static UInt32 RangeDec_GetThreshold(CPpmd8 *p, UInt32 total)
+{
+  return p->Code / (p->Range /= total);
+}
+
+static void RangeDec_Decode(CPpmd8 *p, UInt32 start, UInt32 size)
+{
+  start *= p->Range;
+  p->Low += start;
+  p->Code -= start;
+  p->Range *= size;
+
+  while ((p->Low ^ (p->Low + p->Range)) < kTop ||
+      p->Range < kBot && ((p->Range = (0 - p->Low) & (kBot - 1)), 1))
+  {
+    p->Code = (p->Code << 8) | p->Stream.In->Read(p->Stream.In);
+    p->Range <<= 8;
+    p->Low <<= 8;
+  }
+}
+
+#define MASK(sym) ((signed char *)charMask)[sym]
+
+int Ppmd8_DecodeSymbol(CPpmd8 *p)
+{
+  size_t charMask[256 / sizeof(size_t)];
+  if (p->MinContext->NumStats != 0)
+  {
+    CPpmd_State *s = Ppmd8_GetStats(p, p->MinContext);
+    unsigned i;
+    UInt32 count, hiCnt;
+    if ((count = RangeDec_GetThreshold(p, p->MinContext->SummFreq)) < (hiCnt = s->Freq))
+    {
+      Byte symbol;
+      RangeDec_Decode(p, 0, s->Freq);
+      p->FoundState = s;
+      symbol = s->Symbol;
+      Ppmd8_Update1_0(p);
+      return symbol;
+    }
+    p->PrevSuccess = 0;
+    i = p->MinContext->NumStats;
+    do
+    {
+      if ((hiCnt += (++s)->Freq) > count)
+      {
+        Byte symbol;
+        RangeDec_Decode(p, hiCnt - s->Freq, s->Freq);
+        p->FoundState = s;
+        symbol = s->Symbol;
+        Ppmd8_Update1(p);
+        return symbol;
+      }
+    }
+    while (--i);
+    if (count >= p->MinContext->SummFreq)
+      return -2;
+    RangeDec_Decode(p, hiCnt, p->MinContext->SummFreq - hiCnt);
+    PPMD_SetAllBitsIn256Bytes(charMask);
+    MASK(s->Symbol) = 0;
+    i = p->MinContext->NumStats;
+    do { MASK((--s)->Symbol) = 0; } while (--i);
+  }
+  else
+  {
+    UInt16 *prob = Ppmd8_GetBinSumm(p);
+    if (((p->Code / (p->Range >>= 14)) < *prob))
+    {
+      Byte symbol;
+      RangeDec_Decode(p, 0, *prob);
+      *prob = (UInt16)PPMD_UPDATE_PROB_0(*prob);
+      symbol = (p->FoundState = Ppmd8Context_OneState(p->MinContext))->Symbol;
+      Ppmd8_UpdateBin(p);
+      return symbol;
+    }
+    RangeDec_Decode(p, *prob, (1 << 14) - *prob);
+    *prob = (UInt16)PPMD_UPDATE_PROB_1(*prob);
+    p->InitEsc = PPMD8_kExpEscape[*prob >> 10];
+    PPMD_SetAllBitsIn256Bytes(charMask);
+    MASK(Ppmd8Context_OneState(p->MinContext)->Symbol) = 0;
+    p->PrevSuccess = 0;
+  }
+  for (;;)
+  {
+    CPpmd_State *ps[256], *s;
+    UInt32 freqSum, count, hiCnt;
+    CPpmd_See *see;
+    unsigned i, num, numMasked = p->MinContext->NumStats;
+    do
+    {
+      p->OrderFall++;
+      if (!p->MinContext->Suffix)
+        return -1;
+      p->MinContext = Ppmd8_GetContext(p, p->MinContext->Suffix);
+    }
+    while (p->MinContext->NumStats == numMasked);
+    hiCnt = 0;
+    s = Ppmd8_GetStats(p, p->MinContext);
+    i = 0;
+    num = p->MinContext->NumStats - numMasked;
+    do
+    {
+      int k = (int)(MASK(s->Symbol));
+      hiCnt += (s->Freq & k);
+      ps[i] = s++;
+      i -= k;
+    }
+    while (i != num);
+    
+    see = Ppmd8_MakeEscFreq(p, numMasked, &freqSum);
+    freqSum += hiCnt;
+    count = RangeDec_GetThreshold(p, freqSum);
+    
+    if (count < hiCnt)
+    {
+      Byte symbol;
+      CPpmd_State **pps = ps;
+      for (hiCnt = 0; (hiCnt += (*pps)->Freq) <= count; pps++);
+      s = *pps;
+      RangeDec_Decode(p, hiCnt - s->Freq, s->Freq);
+      Ppmd_See_Update(see);
+      p->FoundState = s;
+      symbol = s->Symbol;
+      Ppmd8_Update2(p);
+      return symbol;
+    }
+    if (count >= freqSum)
+      return -2;
+    RangeDec_Decode(p, hiCnt, freqSum - hiCnt);
+    see->Summ = (UInt16)(see->Summ + freqSum);
+    do { MASK(ps[--i]->Symbol) = 0; } while (i != 0);
+  }
+}
diff --git a/C/Ppmd8Enc.c b/C/Ppmd8Enc.c
new file mode 100755
index 00000000..14a326cf
--- /dev/null
+++ b/C/Ppmd8Enc.c
@@ -0,0 +1,161 @@
+/* Ppmd8Enc.c -- PPMdI Encoder
+2010-03-12 : Igor Pavlov : Public domain
+This code is based on:
+  PPMd var.I (2002): Dmitry Shkarin : Public domain
+  Carryless rangecoder (1999): Dmitry Subbotin : Public domain */
+
+#include "Ppmd8.h"
+
+#define kTop (1 << 24)
+#define kBot (1 << 15)
+
+void Ppmd8_RangeEnc_FlushData(CPpmd8 *p)
+{
+  unsigned i;
+  for (i = 0; i < 4; i++, p->Low <<= 8 )
+    p->Stream.Out->Write(p->Stream.Out, (Byte)(p->Low >> 24));
+}
+
+static void RangeEnc_Normalize(CPpmd8 *p)
+{
+  while ((p->Low ^ (p->Low + p->Range)) < kTop ||
+      p->Range < kBot && ((p->Range = (0 - p->Low) & (kBot - 1)), 1))
+  {
+    p->Stream.Out->Write(p->Stream.Out, (Byte)(p->Low >> 24));
+    p->Range <<= 8;
+    p->Low <<= 8;
+  }
+}
+
+static void RangeEnc_Encode(CPpmd8 *p, UInt32 start, UInt32 size, UInt32 total)
+{
+  p->Low += start * (p->Range /= total);
+  p->Range *= size;
+  RangeEnc_Normalize(p);
+}
+
+static void RangeEnc_EncodeBit_0(CPpmd8 *p, UInt32 size0)
+{
+  p->Range >>= 14;
+  p->Range *= size0;
+  RangeEnc_Normalize(p);
+}
+
+static void RangeEnc_EncodeBit_1(CPpmd8 *p, UInt32 size0)
+{
+  p->Low += size0 * (p->Range >>= 14);
+  p->Range *= ((1 << 14) - size0);
+  RangeEnc_Normalize(p);
+}
+
+
+#define MASK(sym) ((signed char *)charMask)[sym]
+
+void Ppmd8_EncodeSymbol(CPpmd8 *p, int symbol)
+{
+  size_t charMask[256 / sizeof(size_t)];
+  if (p->MinContext->NumStats != 0)
+  {
+    CPpmd_State *s = Ppmd8_GetStats(p, p->MinContext);
+    UInt32 sum;
+    unsigned i;
+    if (s->Symbol == symbol)
+    {
+      RangeEnc_Encode(p, 0, s->Freq, p->MinContext->SummFreq);
+      p->FoundState = s;
+      Ppmd8_Update1_0(p);
+      return;
+    }
+    p->PrevSuccess = 0;
+    sum = s->Freq;
+    i = p->MinContext->NumStats;
+    do
+    {
+      if ((++s)->Symbol == symbol)
+      {
+        RangeEnc_Encode(p, sum, s->Freq, p->MinContext->SummFreq);
+        p->FoundState = s;
+        Ppmd8_Update1(p);
+        return;
+      }
+      sum += s->Freq;
+    }
+    while (--i);
+    
+    PPMD_SetAllBitsIn256Bytes(charMask);
+    MASK(s->Symbol) = 0;
+    i = p->MinContext->NumStats;
+    do { MASK((--s)->Symbol) = 0; } while (--i);
+    RangeEnc_Encode(p, sum, p->MinContext->SummFreq - sum, p->MinContext->SummFreq);
+  }
+  else
+  {
+    UInt16 *prob = Ppmd8_GetBinSumm(p);
+    CPpmd_State *s = Ppmd8Context_OneState(p->MinContext);
+    if (s->Symbol == symbol)
+    {
+      RangeEnc_EncodeBit_0(p, *prob);
+      *prob = (UInt16)PPMD_UPDATE_PROB_0(*prob);
+      p->FoundState = s;
+      Ppmd8_UpdateBin(p);
+      return;
+    }
+    else
+    {
+      RangeEnc_EncodeBit_1(p, *prob);
+      *prob = (UInt16)PPMD_UPDATE_PROB_1(*prob);
+      p->InitEsc = PPMD8_kExpEscape[*prob >> 10];
+      PPMD_SetAllBitsIn256Bytes(charMask);
+      MASK(s->Symbol) = 0;
+      p->PrevSuccess = 0;
+    }
+  }
+  for (;;)
+  {
+    UInt32 escFreq;
+    CPpmd_See *see;
+    CPpmd_State *s;
+    UInt32 sum;
+    unsigned i, numMasked = p->MinContext->NumStats;
+    do
+    {
+      p->OrderFall++;
+      if (!p->MinContext->Suffix)
+        return; /* EndMarker (symbol = -1) */
+      p->MinContext = Ppmd8_GetContext(p, p->MinContext->Suffix);
+    }
+    while (p->MinContext->NumStats == numMasked);
+    
+    see = Ppmd8_MakeEscFreq(p, numMasked, &escFreq);
+    s = Ppmd8_GetStats(p, p->MinContext);
+    sum = 0;
+    i = p->MinContext->NumStats + 1;
+    do
+    {
+      int cur = s->Symbol;
+      if (cur == symbol)
+      {
+        UInt32 low = sum;
+        CPpmd_State *s1 = s;
+        do
+        {
+          sum += (s->Freq & (int)(MASK(s->Symbol)));
+          s++;
+        }
+        while (--i);
+        RangeEnc_Encode(p, low, s1->Freq, sum + escFreq);
+        Ppmd_See_Update(see);
+        p->FoundState = s1;
+        Ppmd8_Update2(p);
+        return;
+      }
+      sum += (s->Freq & (int)(MASK(cur)));
+      MASK(cur) = 0;
+      s++;
+    }
+    while (--i);
+    
+    RangeEnc_Encode(p, sum, escFreq, sum + escFreq);
+    see->Summ = (UInt16)(see->Summ + sum + escFreq);
+  }
+}
diff --git a/C/Types.h b/C/Types.h
index 4751acde..0526cb47 100755
--- a/C/Types.h
+++ b/C/Types.h
@@ -1,5 +1,5 @@
 /* Types.h -- Basic types
-2009-11-23 : Igor Pavlov : Public domain */
+2010-03-11 : Igor Pavlov : Public domain */
 
 #ifndef __7Z_TYPES_H
 #define __7Z_TYPES_H
@@ -124,6 +124,16 @@ typedef int Bool;
 
 typedef struct
 {
+  Byte (*Read)(void *p); /* reads one byte, returns 0 in case of EOF or error */
+} IByteIn;
+
+typedef struct
+{
+  void (*Write)(void *p, Byte b);
+} IByteOut;
+
+typedef struct
+{
   SRes (*Read)(void *p, void *buf, size_t *size);
     /* if (input(*size) != 0 && output(*size) == 0) means end_of_stream.
        (output(*size) < input(*size)) is allowed */
@@ -156,7 +166,7 @@ typedef struct
 
 typedef struct
 {
-  SRes (*Look)(void *p, void **buf, size_t *size);
+  SRes (*Look)(void *p, const void **buf, size_t *size);
     /* if (input(*size) != 0 && output(*size) == 0) means end_of_stream.
        (output(*size) > input(*size)) is not allowed
        (output(*size) < input(*size)) is allowed */
diff --git a/C/Util/7z/7z.dsp b/C/Util/7z/7z.dsp
index 1b185b6f..0d4d04c8 100755
--- a/C/Util/7z/7z.dsp
+++ b/C/Util/7z/7z.dsp
@@ -113,6 +113,7 @@ SOURCE=..\..\7zCrcOpt.c
 # Begin Source File
 
 SOURCE=..\..\7zDec.c
+# ADD CPP /D "_7ZIP_PPMD_SUPPPORT"
 # End Source File
 # Begin Source File
 
@@ -172,6 +173,24 @@ SOURCE=..\..\LzmaDec.h
 # End Source File
 # Begin Source File
 
+SOURCE=..\..\Ppmd.h
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\Ppmd7.c
+# SUBTRACT CPP /YX
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\Ppmd7.h
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\Ppmd7Dec.c
+# SUBTRACT CPP /YX
+# End Source File
+# Begin Source File
+
 SOURCE=..\..\Types.h
 # End Source File
 # End Group
diff --git a/C/Util/7z/7zMain.c b/C/Util/7z/7zMain.c
index c1033823..21c729c5 100755
--- a/C/Util/7z/7zMain.c
+++ b/C/Util/7z/7zMain.c
@@ -1,5 +1,5 @@
 /* 7zMain.c - Test application for 7z Decoder
-2009-11-24 : Igor Pavlov : Public domain */
+2010-03-12 : Igor Pavlov : Public domain */
 
 #include <stdio.h>
 #include <string.h>
@@ -183,23 +183,38 @@ static void PrintString(const UInt16 *s)
   }
 }
 
-
-static void ConvertNumberToString(UInt64 value, char *s)
+static void UInt64ToStr(UInt64 value, char *s)
 {
   char temp[32];
   int pos = 0;
   do
   {
-    temp[pos++] = (char)('0' + (int)(value % 10));
+    temp[pos++] = (char)('0' + (unsigned)(value % 10));
     value /= 10;
   }
   while (value != 0);
   do
     *s++ = temp[--pos];
-  while (pos > 0);
+  while (pos);
   *s = '\0';
 }
 
+static char *UIntToStr(char *s, unsigned value, int numDigits)
+{
+  char temp[16];
+  int pos = 0;
+  do
+    temp[pos++] = (char)('0' + (value % 10));
+  while (value /= 10);
+  for (numDigits -= pos; numDigits > 0; numDigits--)
+    *s++ = '0';
+  do
+    *s++ = temp[--pos];
+  while (pos);
+  *s = '\0';
+  return s;
+}
+
 #define PERIOD_4 (4 * 365 + 1)
 #define PERIOD_100 (PERIOD_4 * 25 - 1)
 #define PERIOD_400 (PERIOD_100 * 4 + 1)
@@ -207,40 +222,22 @@ static void ConvertNumberToString(UInt64 value, char *s)
 static void ConvertFileTimeToString(const CNtfsFileTime *ft, char *s)
 {
   unsigned year, mon, day, hour, min, sec;
-  UInt64 v64 = ft->Low | ((UInt64)ft->High << 32);
+  UInt64 v64 = (ft->Low | ((UInt64)ft->High << 32)) / 10000000;
   Byte ms[] = { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
-  unsigned temp;
+  unsigned t;
   UInt32 v;
-  v64 /= 10000000;
-  sec = (unsigned)(v64 % 60);
-  v64 /= 60;
-  min = (unsigned)(v64 % 60);
-  v64 /= 60;
-  hour = (unsigned)(v64 % 24);
-  v64 /= 24;
+  sec = (unsigned)(v64 % 60); v64 /= 60;
+  min = (unsigned)(v64 % 60); v64 /= 60;
+  hour = (unsigned)(v64 % 24); v64 /= 24;
 
   v = (UInt32)v64;
 
   year = (unsigned)(1601 + v / PERIOD_400 * 400);
   v %= PERIOD_400;
 
-  temp = (unsigned)(v / PERIOD_100);
-  if (temp == 4)
-    temp = 3;
-  year += temp * 100;
-  v -= temp * PERIOD_100;
-
-  temp = v / PERIOD_4;
-  if (temp == 25)
-    temp = 24;
-  year += temp * 4;
-  v -= temp * PERIOD_4;
-
-  temp = v / 365;
-  if (temp == 4)
-    temp = 3;
-  year += temp;
-  v -= temp * 365;
+  t = v / PERIOD_100; if (t ==  4) t =  3; year += t * 100; v -= t * PERIOD_100;
+  t = v / PERIOD_4;   if (t == 25) t = 24; year += t * 4;   v -= t * PERIOD_4;
+  t = v / 365;        if (t ==  4) t =  3; year += t;       v -= t * 365;
 
   if (year % 4 == 0 && (year % 100 != 0 || year % 400 == 0))
     ms[1] = 29;
@@ -252,7 +249,12 @@ static void ConvertFileTimeToString(const CNtfsFileTime *ft, char *s)
     v -= s;
   }
   day = (unsigned)v + 1;
-  sprintf(s, "%04d-%02d-%02d %02d:%02d:%02d", year, mon, day, hour, min, sec);
+  s = UIntToStr(s, year, 4); *s++ = '-';
+  s = UIntToStr(s, mon, 2);  *s++ = '-';
+  s = UIntToStr(s, day, 2);  *s++ = ' ';
+  s = UIntToStr(s, hour, 2); *s++ = ':';
+  s = UIntToStr(s, min, 2);  *s++ = ':';
+  s = UIntToStr(s, sec, 2);
 }
 
 void PrintError(char *sz)
@@ -260,6 +262,24 @@ void PrintError(char *sz)
   printf("\nERROR: %s\n", sz);
 }
 
+#ifdef USE_WINDOWS_FILE
+#define kEmptyAttribChar '.'
+static void GetAttribString(UInt32 wa, Bool isDir, char *s)
+{
+  s[0] = (char)(((wa & FILE_ATTRIBUTE_DIRECTORY) != 0 || isDir) ? 'D' : kEmptyAttribChar);
+  s[1] = (char)(((wa & FILE_ATTRIBUTE_READONLY) != 0) ? 'R': kEmptyAttribChar);
+  s[2] = (char)(((wa & FILE_ATTRIBUTE_HIDDEN) != 0) ? 'H': kEmptyAttribChar);
+  s[3] = (char)(((wa & FILE_ATTRIBUTE_SYSTEM) != 0) ? 'S': kEmptyAttribChar);
+  s[4] = (char)(((wa & FILE_ATTRIBUTE_ARCHIVE) != 0) ? 'A': kEmptyAttribChar);
+  s[5] = '\0';
+}
+#else
+static void GetAttribString(UInt32, Bool, char *s)
+{
+  s[0] = '\0';
+}
+#endif
+
 int MY_CDECL main(int numargs, char *args[])
 {
   CFileInStream archiveStream;
@@ -362,14 +382,22 @@ int MY_CDECL main(int numargs, char *args[])
         SzArEx_GetFileNameUtf16(&db, i, temp);
         if (listCommand)
         {
-          char s[32], t[32];
-          ConvertNumberToString(f->Size, s);
+          char attr[8], s[32], t[32];
+
+          GetAttribString(f->AttribDefined ? f->Attrib : 0, f->IsDir, attr);
+
+          UInt64ToStr(f->Size, s);
           if (f->MTimeDefined)
             ConvertFileTimeToString(&f->MTime, t);
           else
-            strcpy(t, "                   ");
+          {
+            size_t j;
+            for (j = 0; j < 19; j++)
+              t[j] = ' ';
+            t[j] = '\0';
+          }
           
-          printf("%s %10s  ", t, s);
+          printf("%s %s %10s  ", t, attr, s);
           PrintString(temp);
           if (f->IsDir)
             printf("/");
@@ -436,6 +464,10 @@ int MY_CDECL main(int numargs, char *args[])
             res = SZ_ERROR_FAIL;
             break;
           }
+          #ifdef USE_WINDOWS_FILE
+          if (f->AttribDefined)
+            SetFileAttributesW(destPath, f->Attrib);
+          #endif
         }
         printf("\n");
       }
diff --git a/C/Util/7z/makefile b/C/Util/7z/makefile
index 0a5d7107..3b762e65 100755
--- a/C/Util/7z/makefile
+++ b/C/Util/7z/makefile
@@ -1,4 +1,5 @@
 MY_STATIC_LINK=1
+CFLAGS = $(CFLAGS) -D_7ZIP_PPMD_SUPPPORT
 
 PROG = 7zDec.exe
 
@@ -16,6 +17,8 @@ C_OBJS = \
   $O\CpuArch.obj \
   $O\Lzma2Dec.obj \
   $O\LzmaDec.obj \
+  $O\Ppmd7.obj \
+  $O\Ppmd7Dec.obj \
 
 7Z_OBJS = \
   $O\7zAlloc.obj \
diff --git a/C/Util/7z/makefile.gcc b/C/Util/7z/makefile.gcc
index 023bc285..8f95f890 100755
--- a/C/Util/7z/makefile.gcc
+++ b/C/Util/7z/makefile.gcc
@@ -4,7 +4,7 @@ LIB =
 RM = rm -f
 CFLAGS = -c -O2 -Wall
 
-OBJS = 7zMain.o 7zAlloc.o 7zBuf.o 7zBuf2.o 7zCrc.o 7zCrcOpt.o 7zDec.o 7zIn.o CpuArch.o LzmaDec.o Lzma2Dec.o Bra86.o Bcj2.o 7zFile.o 7zStream.o
+OBJS = 7zMain.o 7zAlloc.o 7zBuf.o 7zBuf2.o 7zCrc.o 7zCrcOpt.o 7zDec.o 7zIn.o CpuArch.o LzmaDec.o Lzma2Dec.o Bra86.o Bcj2.o Ppmd7.o Ppmd7Dec.o 7zFile.o 7zStream.o
 
 all: $(PROG)
 
@@ -30,7 +30,7 @@ $(PROG): $(OBJS)
 	$(CXX) $(CFLAGS) ../../7zCrcOpt.c
 
 7zDec.o: ../../7zDec.c
-	$(CXX) $(CFLAGS) ../../7zDec.c
+	$(CXX) $(CFLAGS) -D_7ZIP_PPMD_SUPPPORT ../../7zDec.c
 
 7zIn.o: ../../7zIn.c
 	$(CXX) $(CFLAGS) ../../7zIn.c
@@ -50,6 +50,12 @@ Bra86.o: ../../Bra86.c
 Bcj2.o: ../../Bcj2.c
 	$(CXX) $(CFLAGS) ../../Bcj2.c
 
+Ppmd7.o: ../../Ppmd7.c
+	$(CXX) $(CFLAGS) ../../Ppmd7.c
+
+Ppmd7Dec.o: ../../Ppmd7Dec.c
+	$(CXX) $(CFLAGS) ../../Ppmd7Dec.c
+
 7zFile.o: ../../7zFile.c
 	$(CXX) $(CFLAGS) ../../7zFile.c
 
diff --git a/CPP/7zip/Archive/Com/ComHandler.cpp b/CPP/7zip/Archive/Com/ComHandler.cpp
index 39fce0ae..58f76439 100755
--- a/CPP/7zip/Archive/Com/ComHandler.cpp
+++ b/CPP/7zip/Archive/Com/ComHandler.cpp
@@ -44,6 +44,7 @@ STDMETHODIMP CHandler::GetArchiveProperty(PROPID propID, PROPVARIANT *value)
   {
     case kpidClusterSize: prop = (UInt32)1 << _db.SectorSizeBits; break;
     case kpidSectorSize: prop = (UInt32)1 << _db.MiniSectorSizeBits; break;
+    case kpidMainSubfile: if (_db.MainSubfile >= 0) prop = (UInt32)_db.MainSubfile; break;
   }
   prop.Detach(value);
   return S_OK;
diff --git a/CPP/7zip/Archive/Com/ComIn.cpp b/CPP/7zip/Archive/Com/ComIn.cpp
index 8f622122..2203ca53 100755
--- a/CPP/7zip/Archive/Com/ComIn.cpp
+++ b/CPP/7zip/Archive/Com/ComIn.cpp
@@ -174,8 +174,9 @@ bool CompoundMsiNameToFileName(const UString &name, UString &resultName)
   return true;
 }
 
-static UString ConvertName(const Byte *p)
+static UString ConvertName(const Byte *p, bool &isMsi)
 {
+  isMsi = false;
   UString s;
   for (int i = 0; i < kNameSizeMax; i += 2)
   {
@@ -186,10 +187,19 @@ static UString ConvertName(const Byte *p)
   }
   UString msiName;
   if (CompoundMsiNameToFileName(s, msiName))
+  {
+    isMsi = true;
     return msiName;
+  }
   return CompoundNameToFileName(s);
 }
 
+static UString ConvertName(const Byte *p)
+{
+  bool isMsi;
+  return ConvertName(p, isMsi);
+}
+
 UString CDatabase::GetItemPath(UInt32 index) const
 {
   UString s;
@@ -207,6 +217,7 @@ UString CDatabase::GetItemPath(UInt32 index) const
 
 HRESULT CDatabase::Open(IInStream *inStream)
 {
+  MainSubfile = -1;
   static const UInt32 kHeaderSize = 512;
   Byte p[kHeaderSize];
   RINOK(ReadStream_FALSE(inStream, p, kHeaderSize));
@@ -353,7 +364,26 @@ HRESULT CDatabase::Open(IInStream *inStream)
     }
   }
 
-  return AddNode(-1, root.SonDid);
+  RINOK(AddNode(-1, root.SonDid));
+  
+  unsigned numCabs = 0;
+  for (int i = 0; i < Refs.Size(); i++)
+  {
+    const CItem &item = Items[Refs[i].Did];
+    if (item.IsDir() || numCabs > 1)
+      continue;
+    bool isMsiName;
+    UString msiName = ConvertName(item.Name, isMsiName);
+    if (isMsiName && msiName.Right(4).CompareNoCase(L".cab") == 0)
+    {
+      numCabs++;
+      MainSubfile = i;
+    }
+  }
+  if (numCabs > 1)
+    MainSubfile = -1;
+
+  return S_OK;
 }
 
 }}
diff --git a/CPP/7zip/Archive/Com/ComIn.h b/CPP/7zip/Archive/Com/ComIn.h
index 05fc7387..429d3796 100755
--- a/CPP/7zip/Archive/Com/ComIn.h
+++ b/CPP/7zip/Archive/Com/ComIn.h
@@ -88,6 +88,8 @@ public:
   int SectorSizeBits;
   int MiniSectorSizeBits;
 
+  Int32 MainSubfile;
+
   void Clear();
   bool IsLargeStream(UInt64 size) const { return size >= LongStreamMinSize; }
   UString GetItemPath(UInt32 index) const;
diff --git a/CPP/7zip/Archive/DebHandler.cpp b/CPP/7zip/Archive/DebHandler.cpp
index 9f083269..b9724c2a 100755
--- a/CPP/7zip/Archive/DebHandler.cpp
+++ b/CPP/7zip/Archive/DebHandler.cpp
@@ -68,10 +68,10 @@ struct CItem
 class CInArchive
 {
   CMyComPtr<IInStream> m_Stream;
-  UInt64 m_Position;
   
   HRESULT GetNextItemReal(bool &filled, CItem &itemInfo);
 public:
+  UInt64 m_Position;
   HRESULT Open(IInStream *inStream);
   HRESULT GetNextItem(bool &filled, CItem &itemInfo);
   HRESULT SkipData(UInt64 dataSize);
@@ -155,9 +155,9 @@ HRESULT CInArchive::GetNextItemReal(bool &filled, CItem &item)
   size_t processedSize = sizeof(header);
   item.HeaderPos = m_Position;
   RINOK(ReadStream(m_Stream, header, &processedSize));
-  m_Position += processedSize;
   if (processedSize != sizeof(header))
     return S_OK;
+  m_Position += processedSize;
   
   char tempString[NHeader::kNameSize + 1];
   MyStrNCpy(tempString, cur, NHeader::kNameSize);
@@ -212,14 +212,20 @@ class CHandler:
 {
   CObjectVector<CItem> _items;
   CMyComPtr<IInStream> _stream;
+  Int32 _mainSubfile;
+  UInt64 _phySize;
 public:
   MY_UNKNOWN_IMP2(IInArchive, IInArchiveGetStream)
   INTERFACE_IInArchive(;)
   STDMETHOD(GetStream)(UInt32 index, ISequentialInStream **stream);
 };
 
+static STATPROPSTG kArcProps[] =
+{
+  { NULL, kpidPhySize, VT_UI8}
+};
 
-STATPROPSTG kProps[] =
+static STATPROPSTG kProps[] =
 {
   { NULL, kpidPath, VT_BSTR},
   { NULL, kpidSize, VT_UI8},
@@ -227,7 +233,7 @@ STATPROPSTG kProps[] =
 };
 
 IMP_IInArchive_Props
-IMP_IInArchive_ArcProps_NO
+IMP_IInArchive_ArcProps
 
 STDMETHODIMP CHandler::Open(IInStream *stream,
     const UInt64 * /* maxCheckStartPosition */,
@@ -235,6 +241,7 @@ STDMETHODIMP CHandler::Open(IInStream *stream,
 {
   COM_TRY_BEGIN
   {
+    _mainSubfile = -1;
     CInArchive archive;
     if (archive.Open(stream) != S_OK)
       return S_FALSE;
@@ -258,6 +265,8 @@ STDMETHODIMP CHandler::Open(IInStream *stream,
         return S_FALSE;
       if (!filled)
         break;
+      if (item.Name.Left(5) == "data.")
+        _mainSubfile = _items.Size();
       _items.Add(item);
       archive.SkipData(item.Size);
       if (openArchiveCallback != NULL)
@@ -267,6 +276,7 @@ STDMETHODIMP CHandler::Open(IInStream *stream,
       }
     }
     _stream = stream;
+    _phySize = archive.m_Position;
   }
   return S_OK;
   COM_TRY_END
@@ -285,6 +295,18 @@ STDMETHODIMP CHandler::GetNumberOfItems(UInt32 *numItems)
   return S_OK;
 }
 
+STDMETHODIMP CHandler::GetArchiveProperty(PROPID propID, PROPVARIANT *value)
+{
+  NCOM::CPropVariant prop;
+  switch(propID)
+  {
+    case kpidPhySize: prop = _phySize; break;
+    case kpidMainSubfile: if (_mainSubfile >= 0) prop = (UInt32)_mainSubfile; break;
+  }
+  prop.Detach(value);
+  return S_OK;
+}
+
 STDMETHODIMP CHandler::GetProperty(UInt32 index, PROPID propID, PROPVARIANT *value)
 {
   COM_TRY_BEGIN
diff --git a/CPP/7zip/Archive/PeHandler.cpp b/CPP/7zip/Archive/PeHandler.cpp
index fd900a58..c791d6d7 100755
--- a/CPP/7zip/Archive/PeHandler.cpp
+++ b/CPP/7zip/Archive/PeHandler.cpp
@@ -259,8 +259,9 @@ struct CSection
   // UInt16 NumRelocs;
   bool IsDebug;
   bool IsRealSect;
+  bool IsAdditionalSection;
 
-  CSection(): IsRealSect(false), IsDebug(false) {}
+  CSection(): IsRealSect(false), IsDebug(false), IsAdditionalSection(false) {}
   UInt64 GetPackSize() const { return PSize; }
 
   void UpdateTotalSize(UInt32 &totalSize)
@@ -448,6 +449,7 @@ struct CResItem
   bool IsBmp() const { return Type == 2; }
   bool IsIcon() const { return Type == 3; }
   bool IsString() const { return Type == 6; }
+  bool IsRcData() const { return Type == 10; }
 };
 
 struct CStringItem
@@ -530,6 +532,7 @@ class CHandler:
   COptHeader _optHeader;
   UInt32 _totalSize;
   UInt32 _totalSizeLimited;
+  Int32 _mainSubfile;
 
   CRecordVector<CResItem> _items;
   CObjectVector<CStringItem> _strings;
@@ -648,7 +651,7 @@ STATPROPSTG kArcProps[] =
   { L"Stack Commit", kpidStackCommit, VT_UI8},
   { L"Heap Reserve", kpidHeapReserve, VT_UI8},
   { L"Heap Commit", kpidHeapCommit, VT_UI8},
- };
+};
 
 STATPROPSTG kProps[] =
 {
@@ -689,7 +692,7 @@ STDMETHODIMP CHandler::GetArchiveProperty(PROPID propID, PROPVARIANT *value)
     case kpidLinkerVer:
     {
       CVersion v = { _optHeader.LinkerVerMajor, _optHeader.LinkerVerMinor };
-      VerToProp(v, prop); break;
+      VerToProp(v, prop);
       break;
     }
   
@@ -716,6 +719,7 @@ STDMETHODIMP CHandler::GetArchiveProperty(PROPID propID, PROPVARIANT *value)
     case kpidStackCommit: prop = _optHeader.StackCommit; break;
     case kpidHeapReserve: prop = _optHeader.HeapReserve; break;
     case kpidHeapCommit: prop = _optHeader.HeapCommit; break;
+    case kpidMainSubfile: if (_mainSubfile >= 0) prop = (UInt32)_mainSubfile; break;
   }
   prop.Detach(value);
   return S_OK;
@@ -1240,16 +1244,26 @@ HRESULT CHandler::OpenResources(int sectionIndex, IInStream *stream, IArchiveOpe
   {
     UInt32 mask = (1 << numBits) - 1;
     size_t end = ((maxOffset + mask) & ~mask);
-    if (end < sect.VSize)
+    if (end < sect.VSize && end <= sect.PSize)
     {
       CSection sect2;
       sect2.Flags = 0;
+
+      // we skip Zeros to start of aligned block
+      size_t i;
+      for (i = maxOffset; i < end; i++)
+        if (_buf[i] != 0)
+          break;
+      if (i == end)
+        maxOffset = end;
+      
       sect2.Pa = sect.Pa + (UInt32)maxOffset;
       sect2.Va = sect.Va + (UInt32)maxOffset;
       sect2.PSize = sect.VSize - (UInt32)maxOffset;
       sect2.VSize = sect2.PSize;
       sect2.Name = ".rsrc_1";
       sect2.Time = 0;
+      sect2.IsAdditionalSection = true;
       _sections.Add(sect2);
     }
   }
@@ -1262,6 +1276,8 @@ HRESULT CHandler::Open2(IInStream *stream, IArchiveOpenCallback *callback)
   const UInt32 kBufSize = 1 << 18;
   const UInt32 kSigSize = 2;
 
+  _mainSubfile = -1;
+
   CByteBuffer buffer;
   buffer.SetCapacity(kBufSize);
   Byte *buf = buffer;
@@ -1358,6 +1374,7 @@ HRESULT CHandler::Open2(IInStream *stream, IArchiveOpenCallback *callback)
         CSection s2;
         s2.Pa = s2.Va = limit;
         s2.PSize = s2.VSize = s.Pa - limit;
+        s2.IsAdditionalSection = true;
         s2.Name = '[';
         s2.Name += GetDecString(num++);
         s2.Name += ']';
@@ -1374,6 +1391,7 @@ HRESULT CHandler::Open2(IInStream *stream, IArchiveOpenCallback *callback)
 
   _parseResources = true;
 
+  UInt64 mainSize = 0, mainSize2 = 0;
   for (int i = 0; i < _sections.Size(); i++)
   {
     const CSection &sect = _sections[i];
@@ -1386,12 +1404,26 @@ HRESULT CHandler::Open2(IInStream *stream, IArchiveOpenCallback *callback)
       {
         _resourceFileName = GetUnicodeString(sect.Name);
         for (int j = 0; j < _items.Size(); j++)
-          if (_items[j].Enabled)
+        {
+          const CResItem &item = _items[j];
+          if (item.Enabled)
           {
             mixItem.ResourceIndex = j;
             mixItem.StringIndex = -1;
+            if (item.IsRcData())
+            {
+              if (item.Size >= mainSize)
+              {
+                mainSize2 = mainSize;
+                mainSize = item.Size;
+                _mainSubfile = _mixItems.Size();
+              }
+              else if (item.Size >= mainSize2)
+                mainSize2 = item.Size;
+            }
             _mixItems.Add(mixItem);
           }
+        }
         if (sect.PSize > sect.VSize)
         {
           int numBits = _optHeader.GetNumFileAlignBits();
@@ -1410,6 +1442,7 @@ HRESULT CHandler::Open2(IInStream *stream, IArchiveOpenCallback *callback)
               sect2.VSize = sect2.PSize;
               sect2.Name = ".rsrc_2";
               sect2.Time = 0;
+              sect2.IsAdditionalSection = true;
               _sections.Add(sect2);
             }
           }
@@ -1422,8 +1455,21 @@ HRESULT CHandler::Open2(IInStream *stream, IArchiveOpenCallback *callback)
     }
     mixItem.StringIndex = -1;
     mixItem.ResourceIndex = -1;
+    if (sect.IsAdditionalSection)
+    {
+      if (sect.PSize >= mainSize)
+      {
+        mainSize2 = mainSize;
+        mainSize = sect.PSize;
+        _mainSubfile = _mixItems.Size();
+      }
+      else
+        mainSize2 = sect.PSize;
+    }
     _mixItems.Add(mixItem);
   }
+  if (mainSize2 >= (1 << 20) && mainSize < mainSize2 * 2)
+    _mainSubfile = -1;
   return S_OK;
 }
 
diff --git a/CPP/7zip/Archive/PpmdHandler.cpp b/CPP/7zip/Archive/PpmdHandler.cpp
new file mode 100755
index 00000000..9b2ef048
--- /dev/null
+++ b/CPP/7zip/Archive/PpmdHandler.cpp
@@ -0,0 +1,456 @@
+/* PpmdHandler.c -- PPMd format handler
+2010-03-10 : Igor Pavlov : Public domain
+This code is based on:
+  PPMd var.H (2001) / var.I (2002): Dmitry Shkarin : Public domain
+  Carryless rangecoder (1999): Dmitry Subbotin : Public domain */
+
+#include "StdAfx.h"
+
+#include "../../../C/CpuArch.h"
+#include "../../../C/Alloc.h"
+#include "../../../C/Ppmd7.h"
+#include "../../../C/Ppmd8.h"
+
+#include "Common/ComTry.h"
+#include "Common/IntToString.h"
+#include "Common/StringConvert.h"
+
+#include "Windows/PropVariant.h"
+#include "Windows/Time.h"
+
+#include "../Common/CWrappers.h"
+#include "../Common/ProgressUtils.h"
+#include "../Common/RegisterArc.h"
+#include "../Common/StreamUtils.h"
+
+using namespace NWindows;
+
+namespace NArchive {
+namespace NPpmd {
+
+static void *SzBigAlloc(void *, size_t size) { return BigAlloc(size); }
+static void SzBigFree(void *, void *address) { BigFree(address); }
+static ISzAlloc g_BigAlloc = { SzBigAlloc, SzBigFree };
+
+static const UInt32 kBufSize = (1 << 20);
+
+struct CBuf
+{
+  Byte *Buf;
+  
+  CBuf(): Buf(0) {}
+  ~CBuf() { ::MidFree(Buf); }
+  bool Alloc()
+  {
+    if (!Buf)
+      Buf = (Byte *)::MidAlloc(kBufSize);
+    return (Buf != 0);
+  }
+};
+
+static const UInt32 kHeaderSize = 16;
+static const UInt32 kSignature = 0x84ACAF8F;
+static const unsigned kNewHeaderVer = 8;
+
+struct CItem
+{
+  UInt32 Attrib;
+  UInt32 Time;
+  AString Name;
+  
+  unsigned Order;
+  unsigned MemInMB;
+  unsigned Ver;
+  unsigned Restor;
+
+  HRESULT ReadHeader(ISequentialInStream *s, UInt32 &headerSize);
+  bool IsSupported() const { return Ver == 7 || (Ver == 8 && Restor <= 1); }
+};
+
+HRESULT CItem::ReadHeader(ISequentialInStream *s, UInt32 &headerSize)
+{
+  Byte h[kHeaderSize];
+  RINOK(ReadStream_FALSE(s, h, kHeaderSize));
+  if (GetUi32(h) != kSignature)
+    return S_FALSE;
+  Attrib = GetUi32(h + 4);
+  Time = GetUi32(h + 12);
+  
+  unsigned info = GetUi16(h + 8);
+  Order = (info & 0xF) + 1;
+  MemInMB = ((info >> 4) & 0xFF) + 1;
+  Ver = info >> 12;
+ 
+  UInt32 nameLen = GetUi16(h + 10);
+  Restor = nameLen >> 14;
+  if (Restor > 2)
+    return S_FALSE;
+  if (Ver >= kNewHeaderVer)
+    nameLen &= 0x3FFF;
+  if (nameLen > (1 << 9))
+    return S_FALSE;
+  char *name = Name.GetBuffer(nameLen + 1);
+  HRESULT res = ReadStream_FALSE(s, name, nameLen);
+  name[nameLen] = 0;
+  headerSize = kHeaderSize + nameLen;
+  Name.ReleaseBuffer();
+  return res;
+}
+
+class CHandler:
+  public IInArchive,
+  public IArchiveOpenSeq,
+  public CMyUnknownImp
+{
+  CItem _item;
+  UInt32 _headerSize;
+  UInt64 _packSize;
+  bool _packSizeDefined;
+  CMyComPtr<ISequentialInStream> _stream;
+
+public:
+  MY_UNKNOWN_IMP2(IInArchive, IArchiveOpenSeq)
+  INTERFACE_IInArchive(;)
+  STDMETHOD(OpenSeq)(ISequentialInStream *stream);
+};
+
+STATPROPSTG kProps[] =
+{
+  { NULL, kpidPath, VT_BSTR},
+  { NULL, kpidMTime, VT_FILETIME},
+  { NULL, kpidAttrib, VT_UI4},
+  { NULL, kpidMethod, VT_BSTR}
+};
+
+IMP_IInArchive_Props
+IMP_IInArchive_ArcProps_NO_Table
+
+STDMETHODIMP CHandler::GetArchiveProperty(PROPID propID, PROPVARIANT *value)
+{
+  NCOM::CPropVariant prop;
+  switch(propID)
+  {
+    case kpidPhySize: if (_packSizeDefined) prop = _packSize; break;
+  }
+  prop.Detach(value);
+  return S_OK;
+}
+
+
+STDMETHODIMP CHandler::GetNumberOfItems(UInt32 *numItems)
+{
+  *numItems = 1;
+  return S_OK;
+}
+
+static void UIntToString(AString &s, const char *prefix, unsigned value)
+{
+  s += prefix;
+  char temp[16];
+  ::ConvertUInt32ToString((UInt32)value, temp);
+  s += temp;
+}
+
+STDMETHODIMP CHandler::GetProperty(UInt32 /* index */, PROPID propID,  PROPVARIANT *value)
+{
+  COM_TRY_BEGIN
+  NWindows::NCOM::CPropVariant prop;
+  switch(propID)
+  {
+    case kpidPath: prop = MultiByteToUnicodeString(_item.Name, CP_ACP); break;
+    case kpidMTime:
+    {
+      FILETIME utc;
+      if (NTime::DosTimeToFileTime(_item.Time, utc))
+        prop = utc;
+      break;
+    }
+    case kpidAttrib: prop = _item.Attrib; break;
+    case kpidPackSize: if (_packSizeDefined) prop = _packSize; break;
+    case kpidMethod:
+    {
+      AString s = "PPMd";
+      s += (char)('A' + _item.Ver);
+      UIntToString(s, ":o", _item.Order);
+      UIntToString(s, ":mem", _item.MemInMB);
+      s += 'm';
+      if (_item.Ver >= kNewHeaderVer && _item.Restor != 0)
+        UIntToString(s, ":r", _item.Restor);
+      prop = s;
+    }
+  }
+  prop.Detach(value);
+  return S_OK;
+  COM_TRY_END
+}
+
+STDMETHODIMP CHandler::Open(IInStream *stream, const UInt64 *, IArchiveOpenCallback *)
+{
+  return OpenSeq(stream);
+}
+
+STDMETHODIMP CHandler::OpenSeq(ISequentialInStream *stream)
+{
+  COM_TRY_BEGIN
+  HRESULT res;
+  try
+  {
+    Close();
+    res = _item.ReadHeader(stream, _headerSize);
+  }
+  catch(...) { res = S_FALSE; }
+  if (res == S_OK)
+    _stream = stream;
+  else
+    Close();
+  return res;
+  COM_TRY_END
+}
+
+STDMETHODIMP CHandler::Close()
+{
+  _packSizeDefined = false;
+  _stream.Release();
+  return S_OK;
+}
+
+static const UInt32 kTopValue = (1 << 24);
+static const UInt32 kBot = (1 << 15);
+
+struct CRangeDecoder
+{
+  IPpmd7_RangeDec s;
+  UInt32 Range;
+  UInt32 Code;
+  UInt32 Low;
+  CByteInBufWrap *Stream;
+
+public:
+  bool Init()
+  {
+    Code = 0;
+    Low = 0;
+    Range = 0xFFFFFFFF;
+    for (int i = 0; i < 4; i++)
+      Code = (Code << 8) | Stream->ReadByte();
+    return Code < 0xFFFFFFFF;
+  }
+
+  void Normalize()
+  {
+    while ((Low ^ (Low + Range)) < kTopValue ||
+       Range < kBot && ((Range = (0 - Low) & (kBot - 1)), 1))
+    {
+      Code = (Code << 8) | Stream->ReadByte();
+      Range <<= 8;
+      Low <<= 8;
+    }
+  }
+
+  CRangeDecoder();
+};
+
+
+extern "C" {
+
+static UInt32 Range_GetThreshold(void *pp, UInt32 total)
+{
+  CRangeDecoder *p = (CRangeDecoder *)pp;
+  return p->Code / (p->Range /= total);
+}
+
+static void Range_Decode(void *pp, UInt32 start, UInt32 size)
+{
+  CRangeDecoder *p = (CRangeDecoder *)pp;
+  start *= p->Range;
+  p->Low += start;
+  p->Code -= start;
+  p->Range *= size;
+  p->Normalize();
+}
+
+static UInt32 Range_DecodeBit(void *pp, UInt32 size0)
+{
+  CRangeDecoder *p = (CRangeDecoder *)pp;
+  if (p->Code / (p->Range >>= 14) < size0)
+  {
+    Range_Decode(p, 0, size0);
+    return 0;
+  }
+  else
+  {
+    Range_Decode(p, size0, (1 << 14) - size0);
+    return 1;
+  }
+}
+
+}
+
+CRangeDecoder::CRangeDecoder()
+{
+  s.GetThreshold = Range_GetThreshold;
+  s.Decode = Range_Decode;
+  s.DecodeBit = Range_DecodeBit;
+}
+
+struct CPpmdCpp
+{
+  unsigned Ver;
+  CRangeDecoder _rc;
+  CPpmd7 _ppmd7;
+  CPpmd8 _ppmd8;
+  
+  CPpmdCpp(unsigned version)
+  {
+    Ver = version;
+    Ppmd7_Construct(&_ppmd7);
+    Ppmd8_Construct(&_ppmd8);
+  }
+
+  ~CPpmdCpp()
+  {
+    Ppmd7_Free(&_ppmd7, &g_BigAlloc);
+    Ppmd8_Free(&_ppmd8, &g_BigAlloc);
+  }
+
+  bool Alloc(UInt32 memInMB)
+  {
+    memInMB <<= 20;
+    if (Ver == 7)
+      return Ppmd7_Alloc(&_ppmd7, memInMB, &g_BigAlloc) != 0;
+    return Ppmd8_Alloc(&_ppmd8, memInMB, &g_BigAlloc) != 0;
+  }
+
+  void Init(unsigned order, unsigned restor)
+  {
+    if (Ver == 7)
+      Ppmd7_Init(&_ppmd7, order);
+    else
+      Ppmd8_Init(&_ppmd8, order, restor);;
+  }
+    
+  bool InitRc(CByteInBufWrap *inStream)
+  {
+    if (Ver == 7)
+    {
+      _rc.Stream = inStream;
+      return _rc.Init();
+    }
+    else
+    {
+      _ppmd8.Stream.In = &inStream->p;
+      return Ppmd8_RangeDec_Init(&_ppmd8) != 0;
+    }
+  }
+
+  bool IsFinishedOK()
+  {
+    if (Ver == 7)
+      return Ppmd7z_RangeDec_IsFinishedOK(&_rc);
+    return Ppmd8_RangeDec_IsFinishedOK(&_ppmd8);
+  }
+};
+
+STDMETHODIMP CHandler::Extract(const UInt32 *indices, UInt32 numItems,
+    Int32 testMode, IArchiveExtractCallback *extractCallback)
+{
+  if (numItems == 0)
+    return S_OK;
+  if (numItems != (UInt32)-1 && (numItems != 1 || indices[0] != 0))
+    return E_INVALIDARG;
+
+  // extractCallback->SetTotal(_packSize);
+  UInt64 currentTotalPacked = 0;
+  RINOK(extractCallback->SetCompleted(&currentTotalPacked));
+  CMyComPtr<ISequentialOutStream> realOutStream;
+  Int32 askMode = testMode ?
+      NExtract::NAskMode::kTest :
+      NExtract::NAskMode::kExtract;
+  RINOK(extractCallback->GetStream(0, &realOutStream, askMode));
+  if (!testMode && !realOutStream)
+    return S_OK;
+
+  extractCallback->PrepareOperation(askMode);
+
+  CByteInBufWrap inBuf;
+  if (!inBuf.Alloc(1 << 20))
+    return E_OUTOFMEMORY;
+  inBuf.Stream = _stream;
+
+  CBuf outBuf;
+  if (!outBuf.Alloc())
+    return E_OUTOFMEMORY;
+
+  CLocalProgress *lps = new CLocalProgress;
+  CMyComPtr<ICompressProgressInfo> progress = lps;
+  lps->Init(extractCallback, true);
+
+  CPpmdCpp ppmd(_item.Ver);
+  if (!ppmd.Alloc(_item.MemInMB))
+    return E_OUTOFMEMORY;
+  Int32 opRes = NExtract::NOperationResult::kUnSupportedMethod;
+  if (_item.IsSupported())
+  {
+    opRes = NExtract::NOperationResult::kDataError;
+    ppmd.Init(_item.Order, _item.Restor);
+    inBuf.Init();
+    UInt64 outSize = 0;
+    if (ppmd.InitRc(&inBuf) && !inBuf.Extra && inBuf.Res == S_OK)
+    for (;;)
+    {
+      lps->InSize = _packSize = inBuf.GetProcessed();
+      lps->OutSize = outSize;
+      RINOK(lps->SetCur());
+
+      size_t i;
+      int sym = 0;
+
+      if (ppmd.Ver == 7)
+      {
+        for (i = 0; i < kBufSize; i++)
+        {
+          sym = Ppmd7_DecodeSymbol(&ppmd._ppmd7, &ppmd._rc.s);
+          if (inBuf.Extra || sym < 0)
+            break;
+          outBuf.Buf[i] = (Byte)sym;
+        }
+      }
+      else
+      {
+        for (i = 0; i < kBufSize; i++)
+        {
+          sym = Ppmd8_DecodeSymbol(&ppmd._ppmd8);
+          if (inBuf.Extra || sym < 0)
+            break;
+          outBuf.Buf[i] = (Byte)sym;
+        }
+      }
+
+      outSize += i;
+      _packSize = _headerSize + inBuf.GetProcessed();
+      _packSizeDefined = true;
+      if (realOutStream)
+      {
+        RINOK(WriteStream(realOutStream, outBuf.Buf, i));
+      }
+      if (sym < 0)
+      {
+        if (sym == -1 && ppmd.IsFinishedOK())
+          opRes = NExtract::NOperationResult::kOK;
+        break;
+      }
+    }
+    RINOK(inBuf.Res);
+  }
+  realOutStream.Release();
+  return extractCallback->SetOperationResult(opRes);
+}
+
+static IInArchive *CreateArc() { return new CHandler; }
+
+static CArcInfo g_ArcInfo =
+  { L"Ppmd", L"pmd", 0, 0xD, { 0x8F, 0xAF, 0xAC, 0x84 }, 4, false, CreateArc, 0 };
+
+REGISTER_ARC(Ppmd)
+
+}}
diff --git a/CPP/7zip/Archive/Zip/ZipAddCommon.cpp b/CPP/7zip/Archive/Zip/ZipAddCommon.cpp
index 0a74a3d1..7fed3cab 100755
--- a/CPP/7zip/Archive/Zip/ZipAddCommon.cpp
+++ b/CPP/7zip/Archive/Zip/ZipAddCommon.cpp
@@ -15,6 +15,7 @@
 #include "../../Common/StreamUtils.h"
 
 #include "../../Compress/LzmaEncoder.h"
+#include "../../Compress/PpmdZip.h"
 
 #include "../Common/InStreamWithCRC.h"
 
@@ -169,13 +170,14 @@ HRESULT CAddCommon::Compress(
       else
       {
         if (!_cryptoStreamSpec->Filter)
+        {
           _cryptoStreamSpec->Filter = _filterSpec = new NCrypto::NZip::CEncoder;
-        RINOK(_filterSpec->CryptoSetPassword((const Byte *)(const char *)_options.Password, _options.Password.Length()));
+          _filterSpec->CryptoSetPassword((const Byte *)(const char *)_options.Password, _options.Password.Length());
+        }
         UInt32 crc = 0;
         RINOK(GetStreamCRC(inStream, crc));
         RINOK(inCrcStreamSpec->Seek(0, STREAM_SEEK_SET, NULL));
-        RINOK(_filterSpec->CryptoSetCRC(crc));
-        RINOK(_filterSpec->WriteHeader(outStream));
+        RINOK(_filterSpec->WriteHeader(outStream, crc));
       }
       RINOK(_cryptoStreamSpec->SetOutStream(outStream));
       outStreamReleaser.FilterCoder = _cryptoStreamSpec;
@@ -235,6 +237,26 @@ HRESULT CAddCommon::Compress(
               numProps--;
             RINOK(_lzmaEncoder->SetCoderProperties(propIDs, props, numProps));
           }
+          else if (method == NFileHeader::NCompressionMethod::kPPMd)
+          {
+            _compressExtractVersion = NFileHeader::NCompressionMethod::kExtractVersion_PPMd;
+            NCompress::NPpmdZip::CEncoder *encoder = new NCompress::NPpmdZip::CEncoder();
+            _compressEncoder = encoder;
+            NWindows::NCOM::CPropVariant props[] =
+            {
+              // _options.Algo,
+              _options.MemSize,
+              _options.Order
+              
+            };
+            PROPID propIDs[] =
+            {
+              // NCoderPropID::kAlgorithm,
+              NCoderPropID::kUsedMemorySize,
+              NCoderPropID::kOrder
+            };
+            RINOK(encoder->SetCoderProperties(propIDs, props, sizeof(propIDs) / sizeof(propIDs[0])));
+          }
           else
           {
           CMethodId methodId;
diff --git a/CPP/7zip/Archive/Zip/ZipCompressionMode.h b/CPP/7zip/Archive/Zip/ZipCompressionMode.h
index e5acfa6b..7ef7cfb2 100755
--- a/CPP/7zip/Archive/Zip/ZipCompressionMode.h
+++ b/CPP/7zip/Archive/Zip/ZipCompressionMode.h
@@ -18,6 +18,9 @@ struct CCompressionMethodMode
   bool NumMatchFinderCyclesDefined;
   UInt32 NumMatchFinderCycles;
   UInt32 DicSize;
+  UInt32 MemSize;
+  UInt32 Order;
+
   #ifndef _7ZIP_ST
   UInt32 NumThreads;
   #endif
diff --git a/CPP/7zip/Archive/Zip/ZipHandler.cpp b/CPP/7zip/Archive/Zip/ZipHandler.cpp
index df1ca20b..64477766 100755
--- a/CPP/7zip/Archive/Zip/ZipHandler.cpp
+++ b/CPP/7zip/Archive/Zip/ZipHandler.cpp
@@ -18,6 +18,7 @@
 #include "../../Compress/CopyCoder.h"
 #include "../../Compress/LzmaDecoder.h"
 #include "../../Compress/ImplodeDecoder.h"
+#include "../../Compress/PpmdZip.h"
 #include "../../Compress/ShrinkDecoder.h"
 
 #include "../../Crypto/WzAes.h"
@@ -595,6 +596,8 @@ HRESULT CZipDecoder::Decode(
       mi.Coder = new NCompress::NImplode::NDecoder::CCoder;
     else if (methodId == NFileHeader::NCompressionMethod::kLZMA)
       mi.Coder = new CLzmaDecoder;
+    else if (methodId == NFileHeader::NCompressionMethod::kPPMd)
+      mi.Coder = new NCompress::NPpmdZip::CDecoder(true);
     else
     {
       CMethodId szMethodID;
diff --git a/CPP/7zip/Archive/Zip/ZipHandler.h b/CPP/7zip/Archive/Zip/ZipHandler.h
index 6236b20c..55ebff25 100755
--- a/CPP/7zip/Archive/Zip/ZipHandler.h
+++ b/CPP/7zip/Archive/Zip/ZipHandler.h
@@ -53,6 +53,9 @@ private:
   UInt32 m_NumPasses;
   UInt32 m_NumFastBytes;
   UInt32 m_NumMatchFinderCycles;
+  UInt32 m_MemSize;
+  UInt32 m_Order;
+
   bool m_NumMatchFinderCyclesDefined;
 
   bool m_ForceAesMode;
@@ -77,6 +80,8 @@ private:
     m_DicSize =
     m_NumPasses =
     m_NumFastBytes =
+    m_Order =
+    m_MemSize =
     m_NumMatchFinderCycles = 0xFFFFFFFF;
     m_NumMatchFinderCyclesDefined = false;
     m_ForceAesMode = false;
diff --git a/CPP/7zip/Archive/Zip/ZipHandlerOut.cpp b/CPP/7zip/Archive/Zip/ZipHandlerOut.cpp
index 3571fdeb..b190dd2f 100755
--- a/CPP/7zip/Archive/Zip/ZipHandlerOut.cpp
+++ b/CPP/7zip/Archive/Zip/ZipHandlerOut.cpp
@@ -51,6 +51,18 @@ static const UInt32 kLzmaDicSizeX5 = 1 << 24;
 static const UInt32 kLzmaDicSizeX7 = 1 << 25;
 static const UInt32 kLzmaDicSizeX9 = 1 << 26;
 
+static const UInt32 kPpmdMemSizeX1 = (1 << 20);
+static const UInt32 kPpmdMemSizeX3 = (1 << 22);
+static const UInt32 kPpmdMemSizeX5 = (1 << 24);
+static const UInt32 kPpmdMemSizeX7 = (1 << 26);
+static const UInt32 kPpmdMemSizeX9 = (1 << 27);
+
+static const UInt32 kPpmdOrderX1 = 4;
+static const UInt32 kPpmdOrderX3 = 6;
+static const UInt32 kPpmdOrderX5 = 8;
+static const UInt32 kPpmdOrderX7 = 10;
+static const UInt32 kPpmdOrderX9 = 16;
+
 static const UInt32 kBZip2NumPassesX1 = 1;
 static const UInt32 kBZip2NumPassesX7 = 2;
 static const UInt32 kBZip2NumPassesX9 = 7;
@@ -290,13 +302,14 @@ STDMETHODIMP CHandler::UpdateItems(ISequentialOutStream *outStream, UInt32 numIt
       (mainMethod == NFileHeader::NCompressionMethod::kDeflated64);
   bool isLZMA = (mainMethod == NFileHeader::NCompressionMethod::kLZMA);
   bool isLz = (isLZMA || isDeflate);
-  bool isBZip2 = (mainMethod == NFileHeader::NCompressionMethod::kBZip2);
   options.NumPasses = m_NumPasses;
   options.DicSize = m_DicSize;
   options.NumFastBytes = m_NumFastBytes;
   options.NumMatchFinderCycles = m_NumMatchFinderCycles;
   options.NumMatchFinderCyclesDefined = m_NumMatchFinderCyclesDefined;
   options.Algo = m_Algo;
+  options.MemSize = m_MemSize;
+  options.Order = m_Order;
   #ifndef _7ZIP_ST
   options.NumThreads = _numThreads;
   #endif
@@ -336,7 +349,7 @@ STDMETHODIMP CHandler::UpdateItems(ISequentialOutStream *outStream, UInt32 numIt
         options.Algo = (level >= 5 ? kLzAlgoX5 :
                                      kLzAlgoX1);
   }
-  if (isBZip2)
+  if (mainMethod == NFileHeader::NCompressionMethod::kBZip2)
   {
     if (options.NumPasses == 0xFFFFFFFF)
       options.NumPasses = (level >= 9 ? kBZip2NumPassesX9 :
@@ -347,6 +360,26 @@ STDMETHODIMP CHandler::UpdateItems(ISequentialOutStream *outStream, UInt32 numIt
                         (level >= 3 ? kBZip2DicSizeX3 :
                                       kBZip2DicSizeX1));
   }
+  if (mainMethod == NFileHeader::NCompressionMethod::kPPMd)
+  {
+    if (options.MemSize == 0xFFFFFFFF)
+      options.MemSize =
+          (level >= 9 ? kPpmdMemSizeX9 :
+          (level >= 7 ? kPpmdMemSizeX7 :
+          (level >= 5 ? kPpmdMemSizeX5 :
+          (level >= 3 ? kPpmdMemSizeX3 :
+                        kPpmdMemSizeX1))));
+
+    if (options.Order == 0xFFFFFFFF)
+      options.Order =
+          (level >= 9 ? kPpmdOrderX9 :
+          (level >= 7 ? kPpmdOrderX7 :
+          (level >= 5 ? kPpmdOrderX5 :
+          (level >= 3 ? kPpmdOrderX3 :
+                        kPpmdOrderX1))));
+
+    options.Algo = 0;
+  }
 
   return Update(
       EXTERNAL_CODECS_VARS
@@ -389,6 +422,7 @@ STDMETHODIMP CHandler::SetProperties(const wchar_t **names, const PROPVARIANT *v
         else if (m == L"DEFLATE64") m_MainMethod = NFileHeader::NCompressionMethod::kDeflated64;
         else if (m == L"BZIP2") m_MainMethod = NFileHeader::NCompressionMethod::kBZip2;
         else if (m == L"LZMA") m_MainMethod = NFileHeader::NCompressionMethod::kLZMA;
+        else if (m == L"PPMD") m_MainMethod = NFileHeader::NCompressionMethod::kPPMd;
         else return E_INVALIDARG;
       }
       else if (prop.vt == VT_UI4)
@@ -446,6 +480,18 @@ STDMETHODIMP CHandler::SetProperties(const wchar_t **names, const PROPVARIANT *v
       RINOK(ParsePropDictionaryValue(name.Mid(1), prop, dicSize));
       m_DicSize = dicSize;
     }
+    else if (name.Left(3) == L"MEM")
+    {
+      UInt32 memSize = kPpmdMemSizeX5;
+      RINOK(ParsePropDictionaryValue(name.Mid(3), prop, memSize));
+      m_MemSize = memSize;
+    }
+    else if (name[0] == L'O')
+    {
+      UInt32 order = kPpmdOrderX5;
+      RINOK(ParsePropValue(name.Mid(1), prop, order));
+      m_Order = order;
+    }
     else if (name.Left(4) == L"PASS")
     {
       UInt32 num = kDeflateNumPassesX9;
diff --git a/CPP/7zip/Archive/Zip/ZipHeader.h b/CPP/7zip/Archive/Zip/ZipHeader.h
index 1233af6c..eeff5980 100755
--- a/CPP/7zip/Archive/Zip/ZipHeader.h
+++ b/CPP/7zip/Archive/Zip/ZipHeader.h
@@ -89,6 +89,7 @@ namespace NFileHeader
     const Byte kExtractVersion_BZip2 = 46;
     const Byte kExtractVersion_Aes = 51;
     const Byte kExtractVersion_LZMA = 63;
+    const Byte kExtractVersion_PPMd = 63;
     
     // const Byte kSupportedVersion   = 20;
   }
diff --git a/CPP/7zip/Bundles/Alone/Alone.dsp b/CPP/7zip/Bundles/Alone/Alone.dsp
index 4f57cba9..e6328f7e 100755
--- a/CPP/7zip/Bundles/Alone/Alone.dsp
+++ b/CPP/7zip/Bundles/Alone/Alone.dsp
@@ -148,6 +148,14 @@ SOURCE=..\..\UI\Console\ArError.h
 # End Source File
 # Begin Source File
 
+SOURCE=..\..\UI\Console\BenchCon.cpp
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\UI\Console\BenchCon.h
+# End Source File
+# Begin Source File
+
 SOURCE=..\..\UI\Console\CompressionMode.h
 # End Source File
 # Begin Source File
@@ -176,14 +184,6 @@ SOURCE=..\..\UI\Console\List.h
 # End Source File
 # Begin Source File
 
-SOURCE=..\..\UI\Console\BenchCon.cpp
-# End Source File
-# Begin Source File
-
-SOURCE=..\..\UI\Console\BenchCon.h
-# End Source File
-# Begin Source File
-
 SOURCE=..\..\UI\Console\Main.cpp
 # End Source File
 # Begin Source File
@@ -1018,6 +1018,14 @@ SOURCE=..\..\Compress\PpmdSubAlloc.h
 
 SOURCE=..\..\Compress\PpmdType.h
 # End Source File
+# Begin Source File
+
+SOURCE=..\..\Compress\PpmdZip.cpp
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\Compress\PpmdZip.h
+# End Source File
 # End Group
 # Begin Group "RangeCoder"
 
@@ -1637,6 +1645,14 @@ SOURCE=..\..\UI\Common\ArchiveOpenCallback.h
 # End Source File
 # Begin Source File
 
+SOURCE=..\..\UI\Common\Bench.cpp
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\UI\Common\Bench.h
+# End Source File
+# Begin Source File
+
 SOURCE=..\..\UI\Common\DefaultName.cpp
 # End Source File
 # Begin Source File
@@ -1677,14 +1693,6 @@ SOURCE=..\..\UI\Common\LoadCodecs.h
 # End Source File
 # Begin Source File
 
-SOURCE=..\..\UI\Common\Bench.cpp
-# End Source File
-# Begin Source File
-
-SOURCE=..\..\UI\Common\Bench.h
-# End Source File
-# Begin Source File
-
 SOURCE=..\..\UI\Common\OpenArchive.cpp
 # End Source File
 # Begin Source File
@@ -2669,6 +2677,162 @@ SOURCE=..\..\..\..\C\MtCoder.h
 # End Source File
 # Begin Source File
 
+SOURCE=..\..\..\..\C\Ppmd.h
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\..\..\C\Ppmd7.c
+
+!IF  "$(CFG)" == "Alone - Win32 Release"
+
+# ADD CPP /O2
+# SUBTRACT CPP /YX /Yc /Yu
+
+!ELSEIF  "$(CFG)" == "Alone - Win32 Debug"
+
+# SUBTRACT CPP /YX /Yc /Yu
+
+!ELSEIF  "$(CFG)" == "Alone - Win32 ReleaseU"
+
+# SUBTRACT CPP /YX /Yc /Yu
+
+!ELSEIF  "$(CFG)" == "Alone - Win32 DebugU"
+
+# SUBTRACT CPP /YX /Yc /Yu
+
+!ENDIF 
+
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\..\..\C\Ppmd7.h
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\..\..\C\Ppmd7Dec.c
+
+!IF  "$(CFG)" == "Alone - Win32 Release"
+
+# ADD CPP /O2
+# SUBTRACT CPP /YX /Yc /Yu
+
+!ELSEIF  "$(CFG)" == "Alone - Win32 Debug"
+
+# SUBTRACT CPP /YX /Yc /Yu
+
+!ELSEIF  "$(CFG)" == "Alone - Win32 ReleaseU"
+
+# SUBTRACT CPP /YX /Yc /Yu
+
+!ELSEIF  "$(CFG)" == "Alone - Win32 DebugU"
+
+# SUBTRACT CPP /YX /Yc /Yu
+
+!ENDIF 
+
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\..\..\C\Ppmd7Enc.c
+
+!IF  "$(CFG)" == "Alone - Win32 Release"
+
+# ADD CPP /O2
+# SUBTRACT CPP /YX /Yc /Yu
+
+!ELSEIF  "$(CFG)" == "Alone - Win32 Debug"
+
+# SUBTRACT CPP /YX /Yc /Yu
+
+!ELSEIF  "$(CFG)" == "Alone - Win32 ReleaseU"
+
+# SUBTRACT CPP /YX /Yc /Yu
+
+!ELSEIF  "$(CFG)" == "Alone - Win32 DebugU"
+
+# SUBTRACT CPP /YX /Yc /Yu
+
+!ENDIF 
+
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\..\..\C\Ppmd8.c
+
+!IF  "$(CFG)" == "Alone - Win32 Release"
+
+# ADD CPP /O2
+# SUBTRACT CPP /YX /Yc /Yu
+
+!ELSEIF  "$(CFG)" == "Alone - Win32 Debug"
+
+# SUBTRACT CPP /YX /Yc /Yu
+
+!ELSEIF  "$(CFG)" == "Alone - Win32 ReleaseU"
+
+# SUBTRACT CPP /YX /Yc /Yu
+
+!ELSEIF  "$(CFG)" == "Alone - Win32 DebugU"
+
+# SUBTRACT CPP /YX /Yc /Yu
+
+!ENDIF 
+
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\..\..\C\Ppmd8.h
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\..\..\C\Ppmd8Dec.c
+
+!IF  "$(CFG)" == "Alone - Win32 Release"
+
+# ADD CPP /O2
+# SUBTRACT CPP /YX /Yc /Yu
+
+!ELSEIF  "$(CFG)" == "Alone - Win32 Debug"
+
+# SUBTRACT CPP /YX /Yc /Yu
+
+!ELSEIF  "$(CFG)" == "Alone - Win32 ReleaseU"
+
+# SUBTRACT CPP /YX /Yc /Yu
+
+!ELSEIF  "$(CFG)" == "Alone - Win32 DebugU"
+
+# SUBTRACT CPP /YX /Yc /Yu
+
+!ENDIF 
+
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\..\..\C\Ppmd8Enc.c
+
+!IF  "$(CFG)" == "Alone - Win32 Release"
+
+# ADD CPP /O2
+# SUBTRACT CPP /YX /Yc /Yu
+
+!ELSEIF  "$(CFG)" == "Alone - Win32 Debug"
+
+# SUBTRACT CPP /YX /Yc /Yu
+
+!ELSEIF  "$(CFG)" == "Alone - Win32 ReleaseU"
+
+# SUBTRACT CPP /YX /Yc /Yu
+
+!ELSEIF  "$(CFG)" == "Alone - Win32 DebugU"
+
+# SUBTRACT CPP /YX /Yc /Yu
+
+!ENDIF 
+
+# End Source File
+# Begin Source File
+
 SOURCE=..\..\..\..\C\RotateDefs.h
 # End Source File
 # Begin Source File
diff --git a/CPP/7zip/Bundles/Alone/makefile b/CPP/7zip/Bundles/Alone/makefile
index ef6a33cb..9dd02872 100755
--- a/CPP/7zip/Bundles/Alone/makefile
+++ b/CPP/7zip/Bundles/Alone/makefile
@@ -97,6 +97,7 @@ AR_OBJS = \
   $O\DeflateProps.obj \
   $O\GzHandler.obj \
   $O\LzmaHandler.obj \
+  $O\PpmdHandler.obj \
   $O\SplitHandler.obj \
   $O\XzHandler.obj \
   $O\ZHandler.obj \
@@ -195,6 +196,7 @@ COMPRESS_OBJS = \
   $O\PpmdDecoder.obj \
   $O\PpmdEncoder.obj \
   $O\PpmdRegister.obj \
+  $O\PpmdZip.obj \
   $O\QuantumDecoder.obj \
   $O\ShrinkDecoder.obj \
   $O\ZDecoder.obj \
@@ -228,6 +230,12 @@ C_OBJS = \
   $O\LzmaDec.obj \
   $O\LzmaEnc.obj \
   $O\MtCoder.obj \
+  $O\Ppmd7.obj \
+  $O\Ppmd7Dec.obj \
+  $O\Ppmd7Enc.obj \
+  $O\Ppmd8.obj \
+  $O\Ppmd8Dec.obj \
+  $O\Ppmd8Enc.obj \
   $O\Sha256.obj \
   $O\Sort.obj \
   $O\Threads.obj \
diff --git a/CPP/7zip/Bundles/Fm/makefile b/CPP/7zip/Bundles/Fm/makefile
index 3cd64c20..7068206c 100755
--- a/CPP/7zip/Bundles/Fm/makefile
+++ b/CPP/7zip/Bundles/Fm/makefile
@@ -176,6 +176,7 @@ AR_OBJS = \
   $O\MubHandler.obj \
   $O\NtfsHandler.obj \
   $O\PeHandler.obj \
+  $O\PpmdHandler.obj \
   $O\RpmHandler.obj \
   $O\SplitHandler.obj \
   $O\SwfHandler.obj \
@@ -375,6 +376,7 @@ COMPRESS_OBJS = \
   $O\PpmdDecoder.obj \
   $O\PpmdEncoder.obj \
   $O\PpmdRegister.obj \
+  $O\PpmdZip.obj \
   $O\QuantumDecoder.obj \
   $O\Rar1Decoder.obj \
   $O\Rar2Decoder.obj \
@@ -419,6 +421,12 @@ C_OBJS = \
   $O\LzmaDec.obj \
   $O\LzmaEnc.obj \
   $O\MtCoder.obj \
+  $O\Ppmd7.obj \
+  $O\Ppmd7Dec.obj \
+  $O\Ppmd7Enc.obj \
+  $O\Ppmd8.obj \
+  $O\Ppmd8Dec.obj \
+  $O\Ppmd8Enc.obj \
   $O\Sha256.obj \
   $O\Sort.obj \
   $O\Threads.obj \
diff --git a/CPP/7zip/Bundles/Format7z/makefile b/CPP/7zip/Bundles/Format7z/makefile
index 3a091e22..d3609f7b 100755
--- a/CPP/7zip/Bundles/Format7z/makefile
+++ b/CPP/7zip/Bundles/Format7z/makefile
@@ -112,7 +112,6 @@ CRYPTO_OBJS = \
   $O\Sha1.obj \
 
 C_OBJS = \
-  $O\Aes.obj \
   $O\Alloc.obj \
   $O\Bra.obj \
   $O\Bra86.obj \
@@ -128,6 +127,9 @@ C_OBJS = \
   $O\LzmaDec.obj \
   $O\LzmaEnc.obj \
   $O\MtCoder.obj \
+  $O\Ppmd7.obj \
+  $O\Ppmd7Dec.obj \
+  $O\Ppmd7Enc.obj \
   $O\Sha256.obj \
   $O\Sort.obj \
   $O\Threads.obj \
diff --git a/CPP/7zip/Bundles/Format7zExtract/makefile b/CPP/7zip/Bundles/Format7zExtract/makefile
index 6769be45..fb76cbc0 100755
--- a/CPP/7zip/Bundles/Format7zExtract/makefile
+++ b/CPP/7zip/Bundles/Format7zExtract/makefile
@@ -98,6 +98,8 @@ C_OBJS = \
   $O\Delta.obj \
   $O\Lzma2Dec.obj \
   $O\LzmaDec.obj \
+  $O\Ppmd7.obj \
+  $O\Ppmd7Dec.obj \
   $O\Sha256.obj \
   $O\Threads.obj \
 
diff --git a/CPP/7zip/Bundles/Format7zF/Format7z.dsp b/CPP/7zip/Bundles/Format7zF/Format7z.dsp
index fd992ae0..4be37b86 100755
--- a/CPP/7zip/Bundles/Format7zF/Format7z.dsp
+++ b/CPP/7zip/Bundles/Format7zF/Format7z.dsp
@@ -349,27 +349,35 @@ SOURCE=..\..\..\Common\Wildcard.h
 # PROP Default_Filter ""
 # Begin Source File
 
-SOURCE=..\..\Compress\PpmdContext.h
-# End Source File
-# Begin Source File
+SOURCE=..\..\Compress\PpmdDecoder.cpp
 
-SOURCE=..\..\Compress\PpmdDecode.h
-# End Source File
-# Begin Source File
+!IF  "$(CFG)" == "7z - Win32 Release"
 
-SOURCE=..\..\Compress\PpmdDecoder.cpp
-# End Source File
-# Begin Source File
+# ADD CPP /O2
+# SUBTRACT CPP /YX /Yc /Yu
+
+!ELSEIF  "$(CFG)" == "7z - Win32 Debug"
+
+!ENDIF 
 
-SOURCE=..\..\Compress\PpmdDecoder.h
 # End Source File
 # Begin Source File
 
-SOURCE=..\..\Compress\PpmdEncode.h
+SOURCE=..\..\Compress\PpmdDecoder.h
 # End Source File
 # Begin Source File
 
 SOURCE=..\..\Compress\PpmdEncoder.cpp
+
+!IF  "$(CFG)" == "7z - Win32 Release"
+
+# ADD CPP /O2
+# SUBTRACT CPP /YX /Yc /Yu
+
+!ELSEIF  "$(CFG)" == "7z - Win32 Debug"
+
+!ENDIF 
+
 # End Source File
 # Begin Source File
 
@@ -434,6 +442,16 @@ SOURCE=..\..\Compress\Rar2Decoder.h
 # Begin Source File
 
 SOURCE=..\..\Compress\Rar3Decoder.cpp
+
+!IF  "$(CFG)" == "7z - Win32 Release"
+
+# ADD CPP /O2
+# SUBTRACT CPP /YX /Yc /Yu
+
+!ELSEIF  "$(CFG)" == "7z - Win32 Debug"
+
+!ENDIF 
+
 # End Source File
 # Begin Source File
 
@@ -545,6 +563,14 @@ SOURCE=..\..\Compress\ImplodeHuffmanDecoder.h
 # End Source File
 # Begin Source File
 
+SOURCE=..\..\Compress\PpmdZip.cpp
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\Compress\PpmdZip.h
+# End Source File
+# Begin Source File
+
 SOURCE=..\..\Compress\ShrinkDecoder.cpp
 # End Source File
 # Begin Source File
@@ -1487,6 +1513,114 @@ SOURCE=..\..\..\..\C\MtCoder.h
 # End Source File
 # Begin Source File
 
+SOURCE=..\..\..\..\C\Ppmd.h
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\..\..\C\Ppmd7.c
+
+!IF  "$(CFG)" == "7z - Win32 Release"
+
+# ADD CPP /O2
+# SUBTRACT CPP /YX /Yc /Yu
+
+!ELSEIF  "$(CFG)" == "7z - Win32 Debug"
+
+# SUBTRACT CPP /YX /Yc /Yu
+
+!ENDIF 
+
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\..\..\C\Ppmd7.h
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\..\..\C\Ppmd7Dec.c
+
+!IF  "$(CFG)" == "7z - Win32 Release"
+
+# ADD CPP /O2
+# SUBTRACT CPP /YX /Yc /Yu
+
+!ELSEIF  "$(CFG)" == "7z - Win32 Debug"
+
+# SUBTRACT CPP /YX /Yc /Yu
+
+!ENDIF 
+
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\..\..\C\Ppmd7Enc.c
+
+!IF  "$(CFG)" == "7z - Win32 Release"
+
+# ADD CPP /O2
+# SUBTRACT CPP /YX /Yc /Yu
+
+!ELSEIF  "$(CFG)" == "7z - Win32 Debug"
+
+# SUBTRACT CPP /YX /Yc /Yu
+
+!ENDIF 
+
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\..\..\C\Ppmd8.c
+
+!IF  "$(CFG)" == "7z - Win32 Release"
+
+# ADD CPP /O2
+# SUBTRACT CPP /YX /Yc /Yu
+
+!ELSEIF  "$(CFG)" == "7z - Win32 Debug"
+
+# SUBTRACT CPP /YX /Yc /Yu
+
+!ENDIF 
+
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\..\..\C\Ppmd8.h
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\..\..\C\Ppmd8Dec.c
+
+!IF  "$(CFG)" == "7z - Win32 Release"
+
+# ADD CPP /O2
+# SUBTRACT CPP /YX /Yc /Yu
+
+!ELSEIF  "$(CFG)" == "7z - Win32 Debug"
+
+# SUBTRACT CPP /YX /Yc /Yu
+
+!ENDIF 
+
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\..\..\C\Ppmd8Enc.c
+
+!IF  "$(CFG)" == "7z - Win32 Release"
+
+# ADD CPP /O2
+# SUBTRACT CPP /YX /Yc /Yu
+
+!ELSEIF  "$(CFG)" == "7z - Win32 Debug"
+
+# SUBTRACT CPP /YX /Yc /Yu
+
+!ENDIF 
+
+# End Source File
+# Begin Source File
+
 SOURCE=..\..\..\..\C\RotateDefs.h
 # End Source File
 # Begin Source File
@@ -2264,6 +2398,20 @@ SOURCE=..\..\Archive\PeHandler.cpp
 # End Source File
 # Begin Source File
 
+SOURCE=..\..\Archive\PpmdHandler.cpp
+
+!IF  "$(CFG)" == "7z - Win32 Release"
+
+# ADD CPP /O2
+# SUBTRACT CPP /YX /Yc /Yu
+
+!ELSEIF  "$(CFG)" == "7z - Win32 Debug"
+
+!ENDIF 
+
+# End Source File
+# Begin Source File
+
 SOURCE=..\..\Archive\RpmHandler.cpp
 # End Source File
 # Begin Source File
diff --git a/CPP/7zip/Bundles/Format7zF/makefile b/CPP/7zip/Bundles/Format7zF/makefile
index fe0791a5..b72468c0 100755
--- a/CPP/7zip/Bundles/Format7zF/makefile
+++ b/CPP/7zip/Bundles/Format7zF/makefile
@@ -73,6 +73,7 @@ AR_OBJS = \
   $O\MubHandler.obj \
   $O\NtfsHandler.obj \
   $O\PeHandler.obj \
+  $O\PpmdHandler.obj \
   $O\RpmHandler.obj \
   $O\SplitHandler.obj \
   $O\SwfHandler.obj \
@@ -226,6 +227,7 @@ COMPRESS_OBJS = \
   $O\PpmdDecoder.obj \
   $O\PpmdEncoder.obj \
   $O\PpmdRegister.obj \
+  $O\PpmdZip.obj \
   $O\QuantumDecoder.obj \
   $O\Rar1Decoder.obj \
   $O\Rar2Decoder.obj \
@@ -270,6 +272,12 @@ C_OBJS = \
   $O\LzmaDec.obj \
   $O\LzmaEnc.obj \
   $O\MtCoder.obj \
+  $O\Ppmd7.obj \
+  $O\Ppmd7Dec.obj \
+  $O\Ppmd7Enc.obj \
+  $O\Ppmd8.obj \
+  $O\Ppmd8Dec.obj \
+  $O\Ppmd8Enc.obj \
   $O\Sha256.obj \
   $O\Sort.obj \
   $O\Threads.obj \
diff --git a/CPP/7zip/Bundles/SFXCon/SFXCon.dsp b/CPP/7zip/Bundles/SFXCon/SFXCon.dsp
index 6c624f8d..e355d6e1 100755
--- a/CPP/7zip/Bundles/SFXCon/SFXCon.dsp
+++ b/CPP/7zip/Bundles/SFXCon/SFXCon.dsp
@@ -513,6 +513,14 @@ SOURCE=..\..\Common\CreateCoder.h
 # End Source File
 # Begin Source File
 
+SOURCE=..\..\Common\CWrappers.cpp
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\Common\CWrappers.h
+# End Source File
+# Begin Source File
+
 SOURCE=..\..\Common\FilePathAutoRename.cpp
 # End Source File
 # Begin Source File
@@ -770,6 +778,20 @@ SOURCE=..\..\..\..\C\LzmaDec.h
 # End Source File
 # Begin Source File
 
+SOURCE=..\..\..\..\C\Ppmd7.c
+# SUBTRACT CPP /YX /Yc /Yu
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\..\..\C\Ppmd7.h
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\..\..\C\Ppmd7Dec.c
+# SUBTRACT CPP /YX /Yc /Yu
+# End Source File
+# Begin Source File
+
 SOURCE=..\..\..\..\C\Sha256.c
 # SUBTRACT CPP /YX /Yc /Yu
 # End Source File
diff --git a/CPP/7zip/Bundles/SFXCon/makefile b/CPP/7zip/Bundles/SFXCon/makefile
index f465db5a..c92236bf 100755
--- a/CPP/7zip/Bundles/SFXCon/makefile
+++ b/CPP/7zip/Bundles/SFXCon/makefile
@@ -42,6 +42,7 @@ WIN_OBJS = \
 
 7ZIP_COMMON_OBJS = \
   $O\CreateCoder.obj \
+  $O\CWrappers.obj \
   $O\FilePathAutoRename.obj \
   $O\FileStreams.obj \
   $O\InBuffer.obj \
@@ -108,6 +109,8 @@ C_OBJS = \
   $O\CpuArch.obj \
   $O\Lzma2Dec.obj \
   $O\LzmaDec.obj \
+  $O\Ppmd7.obj \
+  $O\Ppmd7Dec.obj \
   $O\Sha256.obj \
   $O\Threads.obj \
 
diff --git a/CPP/7zip/Bundles/SFXSetup/SFXSetup.dsp b/CPP/7zip/Bundles/SFXSetup/SFXSetup.dsp
index 53b59569..68fe84d6 100755
--- a/CPP/7zip/Bundles/SFXSetup/SFXSetup.dsp
+++ b/CPP/7zip/Bundles/SFXSetup/SFXSetup.dsp
@@ -273,6 +273,18 @@ SOURCE=..\..\Compress\CopyRegister.cpp
 # End Source File
 # Begin Source File
 
+SOURCE=..\..\Compress\Lzma2Decoder.cpp
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\Compress\Lzma2Decoder.h
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\Compress\Lzma2Register.cpp
+# End Source File
+# Begin Source File
+
 SOURCE=..\..\Compress\LzmaDecoder.cpp
 # End Source File
 # Begin Source File
@@ -682,6 +694,15 @@ SOURCE=..\..\..\..\C\CpuArch.h
 # End Source File
 # Begin Source File
 
+SOURCE=..\..\..\..\C\Lzma2Dec.c
+# SUBTRACT CPP /YX /Yc /Yu
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\..\..\C\Lzma2Dec.h
+# End Source File
+# Begin Source File
+
 SOURCE=..\..\..\..\C\LzmaDec.c
 # SUBTRACT CPP /YX /Yc /Yu
 # End Source File
diff --git a/CPP/7zip/Bundles/SFXSetup/makefile b/CPP/7zip/Bundles/SFXSetup/makefile
index b2b892dc..9136e432 100755
--- a/CPP/7zip/Bundles/SFXSetup/makefile
+++ b/CPP/7zip/Bundles/SFXSetup/makefile
@@ -86,6 +86,8 @@ COMPRESS_OBJS = \
   $O\BcjRegister.obj \
   $O\CopyCoder.obj \
   $O\CopyRegister.obj \
+  $O\Lzma2Decoder.obj \
+  $O\Lzma2Register.obj \
   $O\LzmaDecoder.obj \
   $O\LzmaRegister.obj \
 
@@ -93,6 +95,7 @@ C_OBJS = \
   $O\Alloc.obj \
   $O\Bra86.obj \
   $O\CpuArch.obj \
+  $O\Lzma2Dec.obj \
   $O\LzmaDec.obj \
   $O\Threads.obj \
 
diff --git a/CPP/7zip/Bundles/SFXWin/SFXWin.dsp b/CPP/7zip/Bundles/SFXWin/SFXWin.dsp
index b4dedf32..9cd7e8d2 100755
--- a/CPP/7zip/Bundles/SFXWin/SFXWin.dsp
+++ b/CPP/7zip/Bundles/SFXWin/SFXWin.dsp
@@ -357,6 +357,14 @@ SOURCE=..\..\Common\CreateCoder.h
 # End Source File
 # Begin Source File
 
+SOURCE=..\..\Common\CWrappers.cpp
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\Common\CWrappers.h
+# End Source File
+# Begin Source File
+
 SOURCE=..\..\Common\FilePathAutoRename.cpp
 # End Source File
 # Begin Source File
@@ -830,6 +838,20 @@ SOURCE=..\..\..\..\C\LzmaDec.h
 # End Source File
 # Begin Source File
 
+SOURCE=..\..\..\..\C\Ppmd7.c
+# SUBTRACT CPP /YX /Yc /Yu
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\..\..\C\Ppmd7.h
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\..\..\C\Ppmd7Dec.c
+# SUBTRACT CPP /YX /Yc /Yu
+# End Source File
+# Begin Source File
+
 SOURCE=..\..\..\..\C\Sha256.c
 # SUBTRACT CPP /YX /Yc /Yu
 # End Source File
diff --git a/CPP/7zip/Bundles/SFXWin/makefile b/CPP/7zip/Bundles/SFXWin/makefile
index 94793df3..458ac665 100755
--- a/CPP/7zip/Bundles/SFXWin/makefile
+++ b/CPP/7zip/Bundles/SFXWin/makefile
@@ -48,6 +48,7 @@ WIN_CTRL_OBJS = \
 
 7ZIP_COMMON_OBJS = \
   $O\CreateCoder.obj \
+  $O\CWrappers.obj \
   $O\FilePathAutoRename.obj \
   $O\FileStreams.obj \
   $O\InBuffer.obj \
@@ -125,6 +126,8 @@ C_OBJS = \
   $O\CpuArch.obj \
   $O\Lzma2Dec.obj \
   $O\LzmaDec.obj \
+  $O\Ppmd7.obj \
+  $O\Ppmd7Dec.obj \
   $O\Sha256.obj \
   $O\Threads.obj \
 
diff --git a/CPP/7zip/Common/CWrappers.cpp b/CPP/7zip/Common/CWrappers.cpp
index d440027d..41537e97 100755
--- a/CPP/7zip/Common/CWrappers.cpp
+++ b/CPP/7zip/Common/CWrappers.cpp
@@ -2,6 +2,8 @@
 
 #include "StdAfx.h"
 
+#include "../../../C/Alloc.h"
+
 #include "CWrappers.h"
 
 #include "StreamUtils.h"
@@ -125,3 +127,100 @@ CSeekInStreamWrap::CSeekInStreamWrap(IInStream *stream)
   p.Seek = InStreamWrap_Seek;
   Res = S_OK;
 }
+
+
+/* ---------- CByteInBufWrap ---------- */
+
+void CByteInBufWrap::Free()
+{
+  ::MidFree(Buf);
+  Buf = 0;
+}
+
+bool CByteInBufWrap::Alloc(UInt32 size)
+{
+  if (Buf == 0 || size != Size)
+  {
+    Free();
+    Lim = Cur = Buf = (Byte *)::MidAlloc((size_t)size);
+    Size = size;
+  }
+  return (Buf != 0);
+}
+
+Byte CByteInBufWrap::ReadByteFromNewBlock()
+{
+  if (Res == S_OK)
+  {
+    UInt32 avail;
+    Processed += (Cur - Buf);
+    Res = Stream->Read(Buf, Size, &avail);
+    Cur = Buf;
+    Lim = Buf + avail;
+    if (avail != 0)
+      return *Cur++;
+  }
+  Extra = true;
+  return 0;
+}
+
+extern "C" static Byte Wrap_ReadByte(void *pp)
+{
+  CByteInBufWrap *p = (CByteInBufWrap *)pp;
+  if (p->Cur != p->Lim)
+    return *p->Cur++;
+  return p->ReadByteFromNewBlock();
+}
+
+CByteInBufWrap::CByteInBufWrap(): Buf(0)
+{
+  p.Read = Wrap_ReadByte;
+}
+
+
+/* ---------- CByteOutBufWrap ---------- */
+
+void CByteOutBufWrap::Free()
+{
+  ::MidFree(Buf);
+  Buf = 0;
+}
+
+bool CByteOutBufWrap::Alloc(size_t size)
+{
+  if (Buf == 0 || size != Size)
+  {
+    Free();
+    Buf = (Byte *)::MidAlloc(size);
+    Size = size;
+  }
+  return (Buf != 0);
+}
+
+HRESULT CByteOutBufWrap::Flush()
+{
+  if (Res == S_OK)
+  {
+    size_t size = (Cur - Buf);
+    Res = WriteStream(Stream, Buf, size);
+    if (Res == S_OK)
+      Processed += size;
+    Cur = Buf;
+  }
+  return Res;
+}
+
+extern "C" static void Wrap_WriteByte(void *pp, Byte b)
+{
+  CByteOutBufWrap *p = (CByteOutBufWrap *)pp;
+  Byte *dest = p->Cur;
+  *dest = b;
+  p->Cur = ++dest;
+  if (dest == p->Lim)
+    p->Flush();
+}
+
+CByteOutBufWrap::CByteOutBufWrap(): Buf(0)
+{
+  p.Write = Wrap_WriteByte;
+}
diff --git a/CPP/7zip/Common/CWrappers.h b/CPP/7zip/Common/CWrappers.h
index f7ac96cb..80a8a1b6 100755
--- a/CPP/7zip/Common/CWrappers.h
+++ b/CPP/7zip/Common/CWrappers.h
@@ -3,8 +3,6 @@
 #ifndef __C_WRAPPERS_H
 #define __C_WRAPPERS_H
 
-#include "../../../C/Types.h"
-
 #include "../ICoder.h"
 #include "../../Common/MyCom.h"
 
@@ -43,4 +41,69 @@ struct CSeqOutStreamWrap
 
 HRESULT SResToHRESULT(SRes res);
 
+struct CByteInBufWrap
+{
+  IByteIn p;
+  const Byte *Cur;
+  const Byte *Lim;
+  Byte *Buf;
+  UInt32 Size;
+  ISequentialInStream *Stream;
+  UInt64 Processed;
+  bool Extra;
+  HRESULT Res;
+  
+  CByteInBufWrap();
+  ~CByteInBufWrap() { Free();  }
+  void Free();
+  bool Alloc(UInt32 size);
+  void Init()
+  {
+    Lim = Cur = Buf;
+    Processed = 0;
+    Extra = false;
+    Res = S_OK;
+  }
+  UInt64 GetProcessed() const { return Processed + (Cur - Buf); }
+  Byte ReadByteFromNewBlock();
+  Byte ReadByte()
+  {
+    if (Cur != Lim)
+      return *Cur++;
+    return ReadByteFromNewBlock();
+  }
+};
+
+struct CByteOutBufWrap
+{
+  IByteOut p;
+  Byte *Cur;
+  const Byte *Lim;
+  Byte *Buf;
+  size_t Size;
+  ISequentialOutStream *Stream;
+  UInt64 Processed;
+  HRESULT Res;
+  
+  CByteOutBufWrap();
+  ~CByteOutBufWrap() { Free();  }
+  void Free();
+  bool Alloc(size_t size);
+  void Init()
+  {
+    Cur = Buf;
+    Lim = Buf + Size;
+    Processed = 0;
+    Res = S_OK;
+  }
+  UInt64 GetProcessed() const { return Processed + (Cur - Buf); }
+  HRESULT Flush();
+  void WriteByte(Byte b)
+  {
+    *Cur++ = b;
+    if (Cur == Lim)
+      Flush();
+  }
+};
+
 #endif
diff --git a/CPP/7zip/Compress/PpmdContext.h b/CPP/7zip/Compress/PpmdContext.h
deleted file mode 100755
index cfff53ed..00000000
--- a/CPP/7zip/Compress/PpmdContext.h
+++ /dev/null
@@ -1,490 +0,0 @@
-// PpmdContext.h
-// 2009-05-30 : Igor Pavlov : Public domain
-// This code is based on Dmitry Shkarin's PPMdH code (public domain)
-
-#ifndef __COMPRESS_PPMD_CONTEXT_H
-#define __COMPRESS_PPMD_CONTEXT_H
-
-#include "../../Common/Types.h"
-
-#include "PpmdSubAlloc.h"
-#include "RangeCoder.h"
-
-namespace NCompress {
-namespace NPpmd {
-
-const int INT_BITS=7, PERIOD_BITS=7, TOT_BITS=INT_BITS+PERIOD_BITS,
-        INTERVAL=1 << INT_BITS, BIN_SCALE=1 << TOT_BITS, MAX_FREQ=124;
-
-struct SEE2_CONTEXT
-{
-  // SEE-contexts for PPM-contexts with masked symbols
-  UInt16 Summ;
-  Byte Shift, Count;
-  void init(int InitVal) { Summ = (UInt16)(InitVal << (Shift=PERIOD_BITS-4)); Count=4; }
-  unsigned int getMean()
-  {
-    unsigned int RetVal=(Summ >> Shift);
-    Summ = (UInt16)(Summ - RetVal);
-    return RetVal+(RetVal == 0);
-  }
-  void update()
-  {
-    if (Shift < PERIOD_BITS && --Count == 0)
-    {
-      Summ <<= 1;
-      Count = (Byte)(3 << Shift++);
-    }
-  }
-};
-
-struct PPM_CONTEXT
-{
-  UInt16 NumStats; // sizeof(UInt16) > sizeof(Byte)
-  UInt16 SummFreq;
-  
-  struct STATE
-  {
-    Byte Symbol, Freq;
-    UInt16 SuccessorLow;
-    UInt16 SuccessorHigh;
-
-    UInt32 GetSuccessor() const { return SuccessorLow | ((UInt32)SuccessorHigh << 16); }
-    void SetSuccessor(UInt32 v)
-    {
-      SuccessorLow = (UInt16)(v & 0xFFFF);
-      SuccessorHigh = (UInt16)((v >> 16) & 0xFFFF);
-    }
-  };
-  
-  UInt32 Stats;
-  UInt32 Suffix;
-  
-  PPM_CONTEXT* createChild(CSubAllocator &subAllocator, STATE* pStats, STATE& FirstState)
-  {
-    PPM_CONTEXT* pc = (PPM_CONTEXT*) subAllocator.AllocContext();
-    if (pc)
-    {
-      pc->NumStats = 1;
-      pc->oneState() = FirstState;
-      pc->Suffix = subAllocator.GetOffset(this);
-      pStats->SetSuccessor(subAllocator.GetOffsetNoCheck(pc));
-    }
-    return pc;
-  }
-
-  STATE& oneState() const { return (STATE&) SummFreq; }
-};
-
-/////////////////////////////////
-
-const UInt16 InitBinEsc[] =
-  {0x3CDD, 0x1F3F, 0x59BF, 0x48F3, 0x64A1, 0x5ABC, 0x6632, 0x6051};
-
-struct CInfo
-{
-  CSubAllocator SubAllocator;
-  SEE2_CONTEXT SEE2Cont[25][16], DummySEE2Cont;
-  PPM_CONTEXT * MinContext, * MaxContext;
-
-  PPM_CONTEXT::STATE* FoundState;      // found next state transition
-  int NumMasked, InitEsc, OrderFall, RunLength, InitRL, MaxOrder;
-  Byte CharMask[256], NS2Indx[256], NS2BSIndx[256], HB2Flag[256];
-  Byte EscCount, PrintCount, PrevSuccess, HiBitsFlag;
-  UInt16 BinSumm[128][64];               // binary SEE-contexts
-
-  UInt16 &GetBinSumm(const PPM_CONTEXT::STATE &rs, int numStates)
-  {
-    HiBitsFlag = HB2Flag[FoundState->Symbol];
-    return BinSumm[rs.Freq - 1][
-         PrevSuccess + NS2BSIndx[numStates - 1] +
-         HiBitsFlag + 2 * HB2Flag[rs.Symbol] +
-         ((RunLength >> 26) & 0x20)];
-  }
-
-  PPM_CONTEXT *GetContext(UInt32 offset) const { return (PPM_CONTEXT *)SubAllocator.GetPtr(offset); }
-  PPM_CONTEXT *GetContextNoCheck(UInt32 offset) const { return (PPM_CONTEXT *)SubAllocator.GetPtrNoCheck(offset); }
-  PPM_CONTEXT::STATE *GetState(UInt32 offset) const { return (PPM_CONTEXT::STATE *)SubAllocator.GetPtr(offset); }
-  PPM_CONTEXT::STATE *GetStateNoCheck(UInt32 offset) const { return (PPM_CONTEXT::STATE *)SubAllocator.GetPtr(offset); }
-
-  void RestartModelRare()
-  {
-    int i, k, m;
-    memset(CharMask,0,sizeof(CharMask));
-    SubAllocator.InitSubAllocator();
-    InitRL = -((MaxOrder < 12) ? MaxOrder : 12) - 1;
-    MinContext = MaxContext = (PPM_CONTEXT*) SubAllocator.AllocContext();
-    MinContext->Suffix = 0;
-    OrderFall = MaxOrder;
-    MinContext->SummFreq = (UInt16)((MinContext->NumStats = 256) + 1);
-    FoundState = (PPM_CONTEXT::STATE*)SubAllocator.AllocUnits(256 / 2);
-    MinContext->Stats = SubAllocator.GetOffsetNoCheck(FoundState);
-    PrevSuccess = 0;
-    for (RunLength = InitRL, i = 0; i < 256; i++)
-    {
-      PPM_CONTEXT::STATE &state = FoundState[i];
-      state.Symbol = (Byte)i;
-      state.Freq = 1;
-      state.SetSuccessor(0);
-    }
-    for (i = 0; i < 128; i++)
-        for (k = 0; k < 8; k++)
-            for ( m=0; m < 64; m += 8)
-                BinSumm[i][k + m] = (UInt16)(BIN_SCALE - InitBinEsc[k] / (i + 2));
-    for (i = 0; i < 25; i++)
-        for (k = 0; k < 16; k++)
-            SEE2Cont[i][k].init(5*i+10);
-  }
-
-  void StartModelRare(int maxOrder)
-  {
-    int i, k, m ,Step;
-    EscCount=PrintCount=1;
-    if (maxOrder < 2)
-    {
-        memset(CharMask,0,sizeof(CharMask));
-        OrderFall = MaxOrder;
-        MinContext = MaxContext;
-        while (MinContext->Suffix != 0)
-        {
-          MinContext = GetContextNoCheck(MinContext->Suffix);
-          OrderFall--;
-        }
-        FoundState = GetState(MinContext->Stats);
-        MinContext = MaxContext;
-    }
-    else
-    {
-        MaxOrder = maxOrder;
-        RestartModelRare();
-        NS2BSIndx[0] = 2 * 0;
-        NS2BSIndx[1] = 2 * 1;
-        memset(NS2BSIndx + 2, 2 * 2, 9);
-        memset(NS2BSIndx + 11, 2 * 3, 256 - 11);
-        for (i = 0; i < 3; i++)
-          NS2Indx[i] = (Byte)i;
-        for (m = i, k = Step = 1; i < 256; i++)
-        {
-            NS2Indx[i] = (Byte)m;
-            if ( !--k )
-            {
-              k = ++Step;
-              m++;
-            }
-        }
-        memset(HB2Flag, 0, 0x40);
-        memset(HB2Flag + 0x40, 0x08, 0x100 - 0x40);
-        DummySEE2Cont.Shift = PERIOD_BITS;
-    }
-  }
-
-  PPM_CONTEXT* CreateSuccessors(bool skip, PPM_CONTEXT::STATE* p1)
-  {
-    // static UpState declaration bypasses IntelC bug
-    // static PPM_CONTEXT::STATE UpState;
-    PPM_CONTEXT::STATE UpState;
-
-    PPM_CONTEXT *pc = MinContext;
-    PPM_CONTEXT *UpBranch = GetContext(FoundState->GetSuccessor());
-    PPM_CONTEXT::STATE * p, * ps[MAX_O], ** pps = ps;
-    if ( !skip )
-    {
-        *pps++ = FoundState;
-        if ( !pc->Suffix )
-          goto NO_LOOP;
-    }
-    if ( p1 )
-    {
-        p = p1;
-        pc = GetContext(pc->Suffix);
-        goto LOOP_ENTRY;
-    }
-    do
-    {
-        pc = GetContext(pc->Suffix);
-        if (pc->NumStats != 1)
-        {
-            if ((p = GetStateNoCheck(pc->Stats))->Symbol != FoundState->Symbol)
-                do { p++; } while (p->Symbol != FoundState->Symbol);
-        }
-        else
-          p = &(pc->oneState());
-LOOP_ENTRY:
-        if (GetContext(p->GetSuccessor()) != UpBranch)
-        {
-            pc = GetContext(p->GetSuccessor());
-            break;
-        }
-        *pps++ = p;
-    }
-    while ( pc->Suffix );
-NO_LOOP:
-    if (pps == ps)
-      return pc;
-    UpState.Symbol = *(Byte*) UpBranch;
-    UpState.SetSuccessor(SubAllocator.GetOffset(UpBranch) + 1);
-    if (pc->NumStats != 1)
-    {
-        if ((p = GetStateNoCheck(pc->Stats))->Symbol != UpState.Symbol)
-                do { p++; } while (p->Symbol != UpState.Symbol);
-        unsigned int cf = p->Freq-1;
-        unsigned int s0 = pc->SummFreq - pc->NumStats - cf;
-        UpState.Freq = (Byte)(1 + ((2 * cf <= s0) ? (5 * cf > s0) :
-            ((2 * cf + 3 * s0 - 1) / (2 * s0))));
-    }
-    else
-      UpState.Freq = pc->oneState().Freq;
-    do
-    {
-        pc = pc->createChild(SubAllocator, *--pps, UpState);
-        if ( !pc )
-          return NULL;
-    }
-    while (pps != ps);
-    return pc;
-  }
-
-  void UpdateModel()
-  {
-    PPM_CONTEXT::STATE fs = *FoundState, * p = NULL;
-    PPM_CONTEXT* pc, * Successor;
-    unsigned int ns1, ns, cf, sf, s0;
-    if (fs.Freq < MAX_FREQ / 4 && MinContext->Suffix != 0)
-    {
-        pc = GetContextNoCheck(MinContext->Suffix);
-      
-        if (pc->NumStats != 1)
-        {
-            if ((p = GetStateNoCheck(pc->Stats))->Symbol != fs.Symbol)
-            {
-                do { p++; } while (p->Symbol != fs.Symbol);
-                if (p[0].Freq >= p[-1].Freq)
-                {
-                    _PPMD_SWAP(p[0],p[-1]);
-                    p--;
-                }
-            }
-            if (p->Freq < MAX_FREQ-9)
-            {
-                p->Freq += 2;
-                pc->SummFreq += 2;
-            }
-        }
-        else
-        {
-            p = &(pc->oneState());
-            p->Freq = (Byte)(p->Freq + ((p->Freq < 32) ? 1 : 0));
-        }
-    }
-    if ( !OrderFall )
-    {
-        MinContext = MaxContext = CreateSuccessors(true, p);
-        FoundState->SetSuccessor(SubAllocator.GetOffset(MinContext));
-        if (MinContext == 0)
-          goto RESTART_MODEL;
-        return;
-    }
-    *SubAllocator.pText++ = fs.Symbol;
-    Successor = (PPM_CONTEXT*) SubAllocator.pText;
-    if (SubAllocator.pText >= SubAllocator.UnitsStart)
-      goto RESTART_MODEL;
-    if (fs.GetSuccessor() != 0)
-    {
-        if ((Byte *)GetContext(fs.GetSuccessor()) <= SubAllocator.pText)
-        {
-          PPM_CONTEXT* cs = CreateSuccessors(false, p);
-          fs.SetSuccessor(SubAllocator.GetOffset(cs));
-          if (cs == NULL)
-            goto RESTART_MODEL;
-        }
-        if ( !--OrderFall )
-        {
-            Successor = GetContext(fs.GetSuccessor());
-            SubAllocator.pText -= (MaxContext != MinContext);
-        }
-    }
-    else
-    {
-        FoundState->SetSuccessor(SubAllocator.GetOffsetNoCheck(Successor));
-        fs.SetSuccessor(SubAllocator.GetOffsetNoCheck(MinContext));
-    }
-    s0 = MinContext->SummFreq - (ns = MinContext->NumStats) - (fs.Freq - 1);
-    for (pc = MaxContext; pc != MinContext; pc = GetContext(pc->Suffix))
-    {
-        if ((ns1 = pc->NumStats) != 1)
-        {
-            if ((ns1 & 1) == 0)
-            {
-                void *ppp = SubAllocator.ExpandUnits(GetState(pc->Stats), ns1 >> 1);
-                pc->Stats = SubAllocator.GetOffset(ppp);
-                if (!ppp)
-                  goto RESTART_MODEL;
-            }
-            pc->SummFreq = (UInt16)(pc->SummFreq + (2 * ns1 < ns) + 2 * ((4 * ns1 <= ns) &
-                    (pc->SummFreq <= 8 * ns1)));
-        }
-        else
-        {
-            p = (PPM_CONTEXT::STATE*) SubAllocator.AllocUnits(1);
-            if ( !p )
-              goto RESTART_MODEL;
-            *p = pc->oneState();
-            pc->Stats = SubAllocator.GetOffsetNoCheck(p);
-            if (p->Freq < MAX_FREQ / 4 - 1)
-              p->Freq <<= 1;
-            else
-              p->Freq  = MAX_FREQ - 4;
-            pc->SummFreq = (UInt16)(p->Freq + InitEsc + (ns > 3));
-        }
-        cf = 2 * fs.Freq * (pc->SummFreq+6);
-        sf = s0 + pc->SummFreq;
-        if (cf < 6 * sf)
-        {
-            cf = 1 + (cf > sf)+(cf >= 4 * sf);
-            pc->SummFreq += 3;
-        }
-        else
-        {
-            cf = 4 + (cf >= 9 * sf) + (cf >= 12 * sf) + (cf >= 15 * sf);
-            pc->SummFreq = (UInt16)(pc->SummFreq + cf);
-        }
-        p = GetState(pc->Stats) + ns1;
-        p->SetSuccessor(SubAllocator.GetOffset(Successor));
-        p->Symbol = fs.Symbol;
-        p->Freq = (Byte)cf;
-        pc->NumStats = (UInt16)++ns1;
-    }
-    MaxContext = MinContext = GetContext(fs.GetSuccessor());
-    return;
-RESTART_MODEL:
-    RestartModelRare();
-    EscCount = 0;
-    PrintCount = 0xFF;
-  }
-
-  void ClearMask()
-  {
-    EscCount = 1;
-    memset(CharMask, 0, sizeof(CharMask));
-    // if (++PrintCount == 0)
-    //   PrintInfo(DecodedFile,EncodedFile);
-  }
-
-  void update1(PPM_CONTEXT::STATE* p)
-  {
-    (FoundState = p)->Freq += 4;
-    MinContext->SummFreq += 4;
-    if (p[0].Freq > p[-1].Freq)
-    {
-        _PPMD_SWAP(p[0],p[-1]);
-        FoundState = --p;
-        if (p->Freq > MAX_FREQ)
-          rescale();
-    }
-  }
-
-
-  void update2(PPM_CONTEXT::STATE* p)
-  {
-    (FoundState = p)->Freq += 4;
-    MinContext->SummFreq += 4;
-    if (p->Freq > MAX_FREQ)
-      rescale();
-    EscCount++;
-    RunLength = InitRL;
-  }
-  
-  SEE2_CONTEXT* makeEscFreq2(int Diff, UInt32 &scale)
-  {
-    SEE2_CONTEXT* psee2c;
-    if (MinContext->NumStats != 256)
-    {
-      psee2c = SEE2Cont[NS2Indx[Diff-1]] +
-        (Diff < (GetContext(MinContext->Suffix))->NumStats - MinContext->NumStats) +
-        2 * (MinContext->SummFreq < 11 * MinContext->NumStats) +
-        4 * (NumMasked > Diff) +
-        HiBitsFlag;
-      scale = psee2c->getMean();
-    }
-    else
-    {
-      psee2c = &DummySEE2Cont;
-      scale = 1;
-    }
-    return psee2c;
-  }
-
-
-
-  void rescale()
-  {
-    int OldNS = MinContext->NumStats, i = MinContext->NumStats - 1, Adder, EscFreq;
-    PPM_CONTEXT::STATE* p1, * p;
-    PPM_CONTEXT::STATE *stats = GetStateNoCheck(MinContext->Stats);
-    for (p = FoundState; p != stats; p--)
-      _PPMD_SWAP(p[0], p[-1]);
-    stats->Freq += 4;
-    MinContext->SummFreq += 4;
-    EscFreq = MinContext->SummFreq - p->Freq;
-    Adder = (OrderFall != 0);
-    p->Freq = (Byte)((p->Freq + Adder) >> 1);
-    MinContext->SummFreq = p->Freq;
-    do
-    {
-        EscFreq -= (++p)->Freq;
-        p->Freq = (Byte)((p->Freq + Adder) >> 1);
-        MinContext->SummFreq = (UInt16)(MinContext->SummFreq + p->Freq);
-        if (p[0].Freq > p[-1].Freq)
-        {
-            PPM_CONTEXT::STATE tmp = *(p1 = p);
-            do
-            {
-              p1[0] = p1[-1];
-            }
-            while (--p1 != stats && tmp.Freq > p1[-1].Freq);
-            *p1 = tmp;
-        }
-    }
-    while ( --i );
-    if (p->Freq == 0)
-    {
-        do { i++; } while ((--p)->Freq == 0);
-        EscFreq += i;
-        MinContext->NumStats = (UInt16)(MinContext->NumStats - i);
-        if (MinContext->NumStats == 1)
-        {
-            PPM_CONTEXT::STATE tmp = *stats;
-            do { tmp.Freq = (Byte)(tmp.Freq - (tmp.Freq >> 1)); EscFreq >>= 1; } while (EscFreq > 1);
-            SubAllocator.FreeUnits(stats, (OldNS+1) >> 1);
-            *(FoundState = &MinContext->oneState()) = tmp;  return;
-        }
-    }
-    EscFreq -= (EscFreq >> 1);
-    MinContext->SummFreq = (UInt16)(MinContext->SummFreq + EscFreq);
-    int n0 = (OldNS+1) >> 1, n1 = (MinContext->NumStats + 1) >> 1;
-    if (n0 != n1)
-      MinContext->Stats = SubAllocator.GetOffset(SubAllocator.ShrinkUnits(stats, n0, n1));
-    FoundState = GetState(MinContext->Stats);
-  }
-
-  void NextContext()
-  {
-    PPM_CONTEXT *c = GetContext(FoundState->GetSuccessor());
-    if (!OrderFall && (Byte *)c > SubAllocator.pText)
-      MinContext = MaxContext = c;
-    else
-    {
-      UpdateModel();
-      if (EscCount == 0)
-        ClearMask();
-    }
-  }
-};
-
-// Tabulated escapes for exponential symbol distribution
-const Byte ExpEscape[16]={ 25,14, 9, 7, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2 };
-#define GET_MEAN(SUMM,SHIFT,ROUND) ((SUMM+(1 << (SHIFT-ROUND))) >> (SHIFT))
-
-}}
-
-#endif
diff --git a/CPP/7zip/Compress/PpmdDecode.h b/CPP/7zip/Compress/PpmdDecode.h
deleted file mode 100755
index d5ca25fe..00000000
--- a/CPP/7zip/Compress/PpmdDecode.h
+++ /dev/null
@@ -1,155 +0,0 @@
-// PpmdDecode.h
-// 2009-05-30 : Igor Pavlov : Public domain
-// This code is based on Dmitry Shkarin's PPMdH code (public domain)
-
-#ifndef __COMPRESS_PPMD_DECODE_H
-#define __COMPRESS_PPMD_DECODE_H
-
-#include "PpmdContext.h"
-
-namespace NCompress {
-namespace NPpmd {
-
-class CRangeDecoderVirt
-{
-public:
-  virtual UInt32 GetThreshold(UInt32 total) = 0;
-  virtual void Decode(UInt32 start, UInt32 size) = 0;
-  virtual UInt32 DecodeBit(UInt32 size0, UInt32 numTotalBits) = 0;
-};
-
-typedef NRangeCoder::CDecoder CRangeDecoderMy;
-
-class CRangeDecoder:public CRangeDecoderVirt, public CRangeDecoderMy
-{
-  UInt32 GetThreshold(UInt32 total) { return CRangeDecoderMy::GetThreshold(total); }
-  void Decode(UInt32 start, UInt32 size) { CRangeDecoderMy::Decode(start, size); }
-  UInt32 DecodeBit(UInt32 size0, UInt32 numTotalBits) { return CRangeDecoderMy::DecodeBit(size0, numTotalBits); }
-};
-
-struct CDecodeInfo: public CInfo
-{
-  void DecodeBinSymbol(CRangeDecoderVirt *rangeDecoder)
-  {
-    PPM_CONTEXT::STATE& rs = MinContext->oneState();
-    UInt16& bs = GetBinSumm(rs, GetContextNoCheck(MinContext->Suffix)->NumStats);
-    if (rangeDecoder->DecodeBit(bs, TOT_BITS) == 0)
-    {
-      FoundState = &rs;
-      rs.Freq = (Byte)(rs.Freq + (rs.Freq < 128 ? 1: 0));
-      bs = (UInt16)(bs + INTERVAL - GET_MEAN(bs, PERIOD_BITS, 2));
-      PrevSuccess = 1;
-      RunLength++;
-    }
-    else
-    {
-      bs = (UInt16)(bs - GET_MEAN(bs, PERIOD_BITS, 2));
-      InitEsc = ExpEscape[bs >> 10];
-      NumMasked = 1;
-      CharMask[rs.Symbol] = EscCount;
-      PrevSuccess = 0;
-      FoundState = NULL;
-    }
-  }
-
-  void DecodeSymbol1(CRangeDecoderVirt *rangeDecoder)
-  {
-    PPM_CONTEXT::STATE* p = GetStateNoCheck(MinContext->Stats);
-    int i, count, hiCnt;
-    if ((count = rangeDecoder->GetThreshold(MinContext->SummFreq)) < (hiCnt = p->Freq))
-    {
-      PrevSuccess = (2 * hiCnt > MinContext->SummFreq);
-      RunLength += PrevSuccess;
-      rangeDecoder->Decode(0, p->Freq); // MinContext->SummFreq);
-      (FoundState = p)->Freq = (Byte)(hiCnt += 4);
-      MinContext->SummFreq += 4;
-      if (hiCnt > MAX_FREQ)
-        rescale();
-      return;
-    }
-    PrevSuccess = 0;
-    i = MinContext->NumStats - 1;
-    while ((hiCnt += (++p)->Freq) <= count)
-      if (--i == 0)
-      {
-        HiBitsFlag = HB2Flag[FoundState->Symbol];
-        rangeDecoder->Decode(hiCnt, MinContext->SummFreq - hiCnt); // , MinContext->SummFreq);
-        CharMask[p->Symbol] = EscCount;
-        i = (NumMasked = MinContext->NumStats)-1;
-        FoundState = NULL;
-        do { CharMask[(--p)->Symbol] = EscCount; } while ( --i );
-        return;
-      }
-    rangeDecoder->Decode(hiCnt - p->Freq, p->Freq); // , MinContext->SummFreq);
-    update1(p);
-  }
-
-
-  void DecodeSymbol2(CRangeDecoderVirt *rangeDecoder)
-  {
-    int count, hiCnt, i = MinContext->NumStats - NumMasked;
-    UInt32 freqSum;
-    SEE2_CONTEXT* psee2c = makeEscFreq2(i, freqSum);
-    PPM_CONTEXT::STATE* ps[256], ** pps = ps, * p = GetStateNoCheck(MinContext->Stats)-1;
-    hiCnt = 0;
-    do
-    {
-      do { p++; } while (CharMask[p->Symbol] == EscCount);
-      hiCnt += p->Freq;
-      *pps++ = p;
-    }
-    while ( --i );
-    
-    freqSum += hiCnt;
-    count = rangeDecoder->GetThreshold(freqSum);
-    
-    p = *(pps = ps);
-    if (count < hiCnt)
-    {
-      hiCnt = 0;
-      while ((hiCnt += p->Freq) <= count)
-        p=*++pps;
-      rangeDecoder->Decode(hiCnt - p->Freq, p->Freq); // , freqSum);
-      
-      psee2c->update();
-      update2(p);
-    }
-    else
-    {
-      rangeDecoder->Decode(hiCnt, freqSum - hiCnt); // , freqSum);
-      
-      i = MinContext->NumStats - NumMasked;
-      pps--;
-      do { CharMask[(*++pps)->Symbol] = EscCount; } while ( --i );
-      psee2c->Summ = (UInt16)(psee2c->Summ + freqSum);
-      NumMasked = MinContext->NumStats;
-    }
-  }
-
-  int DecodeSymbol(CRangeDecoderVirt *rangeDecoder)
-  {
-    if (MinContext->NumStats != 1)
-      DecodeSymbol1(rangeDecoder);
-    else
-      DecodeBinSymbol(rangeDecoder);
-    while ( !FoundState )
-    {
-      do
-      {
-        OrderFall++;
-        MinContext = GetContext(MinContext->Suffix);
-        if (MinContext == 0)
-          return -1;
-      }
-      while (MinContext->NumStats == NumMasked);
-      DecodeSymbol2(rangeDecoder);
-    }
-    Byte symbol = FoundState->Symbol;
-    NextContext();
-    return symbol;
-  }
-};
-
-}}
-
-#endif
diff --git a/CPP/7zip/Compress/PpmdDecoder.cpp b/CPP/7zip/Compress/PpmdDecoder.cpp
index 0ac98c8b..c02f44f1 100755
--- a/CPP/7zip/Compress/PpmdDecoder.cpp
+++ b/CPP/7zip/Compress/PpmdDecoder.cpp
@@ -1,181 +1,165 @@
 // PpmdDecoder.cpp
-// 2009-05-30 : Igor Pavlov : Public domain
+// 2009-03-11 : Igor Pavlov : Public domain
 
 #include "StdAfx.h"
 
-#include "Common/Defs.h"
-#include "Windows/Defs.h"
+#include "../../../C/Alloc.h"
+#include "../../../C/CpuArch.h"
+
+#include "../Common/StreamUtils.h"
 
 #include "PpmdDecoder.h"
 
 namespace NCompress {
 namespace NPpmd {
 
-const int kLenIdFinished = -1;
-const int kLenIdNeedInit = -2;
+static const UInt32 kBufSize = (1 << 20);
+
+enum
+{
+  kStatus_NeedInit,
+  kStatus_Normal,
+  kStatus_Finished,
+  kStatus_Error
+};
+
+static void *SzBigAlloc(void *, size_t size) { return BigAlloc(size); }
+static void SzBigFree(void *, void *address) { BigFree(address); }
+static ISzAlloc g_BigAlloc = { SzBigAlloc, SzBigFree };
+
+CDecoder::~CDecoder()
+{
+  ::MidFree(_outBuf);
+  Ppmd7_Free(&_ppmd, &g_BigAlloc);
+}
 
-STDMETHODIMP CDecoder::SetDecoderProperties2(const Byte *properties, UInt32 size)
+STDMETHODIMP CDecoder::SetDecoderProperties2(const Byte *props, UInt32 size)
 {
   if (size < 5)
     return E_INVALIDARG;
-  _order = properties[0];
-  _usedMemorySize = 0;
-  for (int i = 0; i < 4; i++)
-    _usedMemorySize += ((UInt32)(properties[1 + i])) << (i * 8);
-
-  if (_usedMemorySize > kMaxMemBlockSize)
+  _order = props[0];
+  UInt32 memSize = GetUi32(props + 1);
+  if (_order < PPMD7_MIN_ORDER ||
+      _order > PPMD7_MAX_ORDER ||
+      memSize < PPMD7_MIN_MEM_SIZE ||
+      memSize > PPMD7_MAX_MEM_SIZE)
     return E_NOTIMPL;
-
-  if (!_rangeDecoder.Create(1 << 20))
+  if (!_inStream.Alloc(1 << 20))
     return E_OUTOFMEMORY;
-  if (!_info.SubAllocator.StartSubAllocator(_usedMemorySize))
+  if (!Ppmd7_Alloc(&_ppmd, memSize, &g_BigAlloc))
     return E_OUTOFMEMORY;
-
   return S_OK;
 }
 
-class CDecoderFlusher
+HRESULT CDecoder::CodeSpec(Byte *memStream, UInt32 size)
 {
-  CDecoder *_coder;
-public:
-  bool NeedFlush;
-  CDecoderFlusher(CDecoder *coder): _coder(coder), NeedFlush(true) {}
-  ~CDecoderFlusher()
+  switch(_status)
   {
-    if (NeedFlush)
-      _coder->Flush();
-    _coder->ReleaseStreams();
+    case kStatus_Finished: return S_OK;
+    case kStatus_Error: return S_FALSE;
+    case kStatus_NeedInit:
+      _inStream.Init();
+      if (!Ppmd7z_RangeDec_Init(&_rangeDec))
+      {
+        _status = kStatus_Error;
+        return S_FALSE;
+      }
+      _status = kStatus_Normal;
+      Ppmd7_Init(&_ppmd, _order);
+      break;
   }
-};
-
-HRESULT CDecoder::CodeSpec(UInt32 size, Byte *memStream)
-{
   if (_outSizeDefined)
   {
     const UInt64 rem = _outSize - _processedSize;
     if (size > rem)
       size = (UInt32)rem;
   }
-  const UInt32 startSize = size;
 
-  if (_remainLen == kLenIdFinished)
-    return S_OK;
-  if (_remainLen == kLenIdNeedInit)
+  UInt32 i;
+  int sym = 0;
+  for (i = 0; i != size; i++)
   {
-    _rangeDecoder.Init();
-    _remainLen = 0;
-    _info.MaxOrder = 0;
-    _info.StartModelRare(_order);
+    sym = Ppmd7_DecodeSymbol(&_ppmd, &_rangeDec.p);
+    if (_inStream.Extra || sym < 0)
+      break;
+    memStream[i] = (Byte)sym;
   }
-  while (size != 0)
+
+  _processedSize += i;
+  if (_inStream.Extra)
   {
-    int symbol = _info.DecodeSymbol(&_rangeDecoder);
-    if (symbol < 0)
-    {
-      _remainLen = kLenIdFinished;
-      break;
-    }
-    if (memStream != 0)
-      *memStream++ = (Byte)symbol;
-    else
-      _outStream.WriteByte((Byte)symbol);
-    size--;
+    _status = kStatus_Error;
+    return _inStream.Res;
   }
-  _processedSize += startSize - size;
+  if (sym < 0)
+    _status = (sym < -1) ? kStatus_Error : kStatus_Finished;
   return S_OK;
 }
 
-STDMETHODIMP CDecoder::CodeReal(ISequentialInStream *inStream, ISequentialOutStream *outStream,
+STDMETHODIMP CDecoder::Code(ISequentialInStream *inStream, ISequentialOutStream *outStream,
     const UInt64 * /* inSize */, const UInt64 *outSize, ICompressProgressInfo *progress)
 {
-  if (!_outStream.Create(1 << 20))
-    return E_OUTOFMEMORY;
+  if (!_outBuf)
+  {
+    _outBuf = (Byte *)::MidAlloc(kBufSize);
+    if (!_outBuf)
+      return E_OUTOFMEMORY;
+  }
   
-  SetInStream(inStream);
-  _outStream.SetStream(outStream);
+  _inStream.Stream = inStream;
   SetOutStreamSize(outSize);
-  CDecoderFlusher flusher(this);
 
-  for (;;)
+  do
   {
-    _processedSize = _outStream.GetProcessedSize();
-    UInt32 curSize = (1 << 18);
-    RINOK(CodeSpec(curSize, NULL));
-    if (_remainLen == kLenIdFinished)
+    const UInt64 startPos = _processedSize;
+    HRESULT res = CodeSpec(_outBuf, kBufSize);
+    size_t processed = (size_t)(_processedSize - startPos);
+    RINOK(WriteStream(outStream, _outBuf, processed));
+    RINOK(res);
+    if (_status == kStatus_Finished)
       break;
-    if (progress != NULL)
+    if (progress)
     {
-      UInt64 inSize = _rangeDecoder.GetProcessedSize();
+      UInt64 inSize = _inStream.GetProcessed();
       RINOK(progress->SetRatioInfo(&inSize, &_processedSize));
     }
-    if (_outSizeDefined)
-      if (_outStream.GetProcessedSize() >= _outSize)
-        break;
   }
-  flusher.NeedFlush = false;
-  return Flush();
+  while (!_outSizeDefined || _processedSize < _outSize);
+  return S_OK;
 }
 
-#ifdef _NO_EXCEPTIONS
-
-#define PPMD_TRY_BEGIN
-#define PPMD_TRY_END
-
-#else
-
-#define PPMD_TRY_BEGIN try {
-#define PPMD_TRY_END } \
-  catch(const CInBufferException &e)  { return e.ErrorCode; } \
-  catch(const COutBufferException &e)  { return e.ErrorCode; } \
-  catch(...) { return S_FALSE; }
-
-#endif
-
-
-STDMETHODIMP CDecoder::Code(ISequentialInStream *inStream, ISequentialOutStream *outStream,
-    const UInt64 *inSize, const UInt64 *outSize, ICompressProgressInfo *progress)
+STDMETHODIMP CDecoder::SetOutStreamSize(const UInt64 *outSize)
 {
-  PPMD_TRY_BEGIN
-  return CodeReal(inStream, outStream, inSize, outSize, progress);
-  PPMD_TRY_END
+  _outSizeDefined = (outSize != NULL);
+  if (_outSizeDefined)
+    _outSize = *outSize;
+  _processedSize = 0;
+  _status = kStatus_NeedInit;
+  return S_OK;
 }
 
+#ifndef NO_READ_FROM_CODER
+
 STDMETHODIMP CDecoder::SetInStream(ISequentialInStream *inStream)
 {
-  _rangeDecoder.SetStream(inStream);
+  InSeqStream = inStream;
+  _inStream.Stream = inStream;
   return S_OK;
 }
 
 STDMETHODIMP CDecoder::ReleaseInStream()
 {
-  _rangeDecoder.ReleaseStream();
+  InSeqStream.Release();
   return S_OK;
 }
 
-STDMETHODIMP CDecoder::SetOutStreamSize(const UInt64 *outSize)
-{
-  _outSizeDefined = (outSize != NULL);
-  if (_outSizeDefined)
-    _outSize = *outSize;
-  _processedSize = 0;
-  _remainLen = kLenIdNeedInit;
-  _outStream.Init();
-  return S_OK;
-}
-
-#ifndef NO_READ_FROM_CODER
-
 STDMETHODIMP CDecoder::Read(void *data, UInt32 size, UInt32 *processedSize)
 {
-  PPMD_TRY_BEGIN
-  if (processedSize)
-    *processedSize = 0;
   const UInt64 startPos = _processedSize;
-  RINOK(CodeSpec(size, (Byte *)data));
+  HRESULT res = CodeSpec((Byte *)data, size);
   if (processedSize)
     *processedSize = (UInt32)(_processedSize - startPos);
-  return Flush();
-  PPMD_TRY_END
+  return res;
 }
 
 #endif
diff --git a/CPP/7zip/Compress/PpmdDecoder.h b/CPP/7zip/Compress/PpmdDecoder.h
index 31ab8f82..8ebcd700 100755
--- a/CPP/7zip/Compress/PpmdDecoder.h
+++ b/CPP/7zip/Compress/PpmdDecoder.h
@@ -1,17 +1,16 @@
 // PpmdDecoder.h
-// 2009-05-30 : Igor Pavlov : Public domain
+// 2009-03-11 : Igor Pavlov : Public domain
 
 #ifndef __COMPRESS_PPMD_DECODER_H
 #define __COMPRESS_PPMD_DECODER_H
 
-#include "../../Common/MyCom.h"
+#include "../../../C/Ppmd7.h"
 
-#include "../ICoder.h"
+#include "../../Common/MyCom.h"
 
-#include "../Common/OutBuffer.h"
+#include "../Common/CWrappers.h"
 
-#include "PpmdDecode.h"
-#include "RangeCoder.h"
+#include "../ICoder.h"
 
 namespace NCompress {
 namespace NPpmd {
@@ -26,25 +25,23 @@ class CDecoder :
   #endif
   public CMyUnknownImp
 {
-  CRangeDecoder _rangeDecoder;
-
-  COutBuffer _outStream;
-
-  CDecodeInfo _info;
+  Byte *_outBuf;
+  CPpmd7z_RangeDec _rangeDec;
+  CByteInBufWrap _inStream;
+  CPpmd7 _ppmd;
 
   Byte _order;
-  UInt32 _usedMemorySize;
-
-  int _remainLen;
-  UInt64 _outSize;
   bool _outSizeDefined;
+  int _status;
+  UInt64 _outSize;
   UInt64 _processedSize;
 
-  HRESULT CodeSpec(UInt32 num, Byte *memStream);
+  HRESULT CodeSpec(Byte *memStream, UInt32 size);
 
 public:
 
   #ifndef NO_READ_FROM_CODER
+  CMyComPtr<ISequentialInStream> InSeqStream;
   MY_UNKNOWN_IMP4(
       ICompressSetDecoderProperties2,
       ICompressSetInStream,
@@ -55,31 +52,25 @@ public:
       ICompressSetDecoderProperties2)
   #endif
 
-  void ReleaseStreams()
-  {
-    ReleaseInStream();
-    _outStream.ReleaseStream();
-  }
-
-  HRESULT Flush() { return _outStream.Flush(); }
-
-  STDMETHOD(CodeReal)(ISequentialInStream *inStream, ISequentialOutStream *outStream,
-      const UInt64 *inSize, const UInt64 *outSize, ICompressProgressInfo *progress);
-
   STDMETHOD(Code)(ISequentialInStream *inStream, ISequentialOutStream *outStream,
       const UInt64 *inSize, const UInt64 *outSize, ICompressProgressInfo *progress);
-
   STDMETHOD(SetDecoderProperties2)(const Byte *data, UInt32 size);
-
-  STDMETHOD(SetInStream)(ISequentialInStream *inStream);
-  STDMETHOD(ReleaseInStream)();
   STDMETHOD(SetOutStreamSize)(const UInt64 *outSize);
 
   #ifndef NO_READ_FROM_CODER
+  STDMETHOD(SetInStream)(ISequentialInStream *inStream);
+  STDMETHOD(ReleaseInStream)();
   STDMETHOD(Read)(void *data, UInt32 size, UInt32 *processedSize);
   #endif
 
-  CDecoder(): _outSizeDefined(false) {}
+  CDecoder(): _outBuf(NULL), _outSizeDefined(false)
+  {
+    Ppmd7z_RangeDec_CreateVTable(&_rangeDec);
+    _rangeDec.Stream = &_inStream.p;
+    Ppmd7_Construct(&_ppmd);
+  }
+
+  ~CDecoder();
 };
 
 }}
diff --git a/CPP/7zip/Compress/PpmdEncode.h b/CPP/7zip/Compress/PpmdEncode.h
deleted file mode 100755
index 012f859c..00000000
--- a/CPP/7zip/Compress/PpmdEncode.h
+++ /dev/null
@@ -1,142 +0,0 @@
-// PpmdEncode.h
-// 2009-05-30 : Igor Pavlov : Public domain
-// This code is based on Dmitry Shkarin's PPMdH code (public domain)
-
-#ifndef __COMPRESS_PPMD_ENCODE_H
-#define __COMPRESS_PPMD_ENCODE_H
-
-#include "PpmdContext.h"
-
-namespace NCompress {
-namespace NPpmd {
-
-struct CEncodeInfo: public CInfo
-{
-  void EncodeBinSymbol(int symbol, NRangeCoder::CEncoder *rangeEncoder)
-  {
-    PPM_CONTEXT::STATE& rs = MinContext->oneState();
-    UInt16 &bs = GetBinSumm(rs, GetContextNoCheck(MinContext->Suffix)->NumStats);
-    if (rs.Symbol == symbol)
-    {
-      FoundState = &rs;
-      rs.Freq = (Byte)(rs.Freq + (rs.Freq < 128 ? 1: 0));
-      rangeEncoder->EncodeBit(bs, TOT_BITS, 0);
-      bs = (UInt16)(bs + INTERVAL - GET_MEAN(bs, PERIOD_BITS, 2));
-      PrevSuccess = 1;
-      RunLength++;
-    }
-    else
-    {
-      rangeEncoder->EncodeBit(bs, TOT_BITS, 1);
-      bs = (UInt16)(bs - GET_MEAN(bs, PERIOD_BITS, 2));
-      InitEsc = ExpEscape[bs >> 10];
-      NumMasked = 1;
-      CharMask[rs.Symbol] = EscCount;
-      PrevSuccess = 0;
-      FoundState = NULL;
-    }
-  }
-
-  void EncodeSymbol1(int symbol, NRangeCoder::CEncoder *rangeEncoder)
-  {
-    PPM_CONTEXT::STATE* p = GetStateNoCheck(MinContext->Stats);
-    if (p->Symbol == symbol)
-    {
-      PrevSuccess = (2 * (p->Freq) > MinContext->SummFreq);
-      RunLength += PrevSuccess;
-      rangeEncoder->Encode(0, p->Freq, MinContext->SummFreq);
-      (FoundState = p)->Freq += 4;
-      MinContext->SummFreq += 4;
-      if (p->Freq > MAX_FREQ)
-        rescale();
-      return;
-    }
-    PrevSuccess = 0;
-    int LoCnt = p->Freq, i = MinContext->NumStats - 1;
-    while ((++p)->Symbol != symbol)
-    {
-      LoCnt += p->Freq;
-      if (--i == 0)
-      {
-        HiBitsFlag = HB2Flag[FoundState->Symbol];
-        CharMask[p->Symbol] = EscCount;
-        i=(NumMasked = MinContext->NumStats)-1;
-        FoundState = NULL;
-        do { CharMask[(--p)->Symbol] = EscCount; } while ( --i );
-        rangeEncoder->Encode(LoCnt, MinContext->SummFreq - LoCnt, MinContext->SummFreq);
-        return;
-      }
-    }
-    rangeEncoder->Encode(LoCnt, p->Freq, MinContext->SummFreq);
-    update1(p);
-  }
-
-  void EncodeSymbol2(int symbol, NRangeCoder::CEncoder *rangeEncoder)
-  {
-    int hiCnt, i = MinContext->NumStats - NumMasked;
-    UInt32 scale;
-    SEE2_CONTEXT* psee2c = makeEscFreq2(i, scale);
-    PPM_CONTEXT::STATE* p = GetStateNoCheck(MinContext->Stats) - 1;
-    hiCnt = 0;
-    do
-    {
-      do { p++; } while (CharMask[p->Symbol] == EscCount);
-      hiCnt += p->Freq;
-      if (p->Symbol == symbol)
-        goto SYMBOL_FOUND;
-      CharMask[p->Symbol] = EscCount;
-    }
-    while ( --i );
-    
-    rangeEncoder->Encode(hiCnt, scale, hiCnt + scale);
-    scale += hiCnt;
-    
-    psee2c->Summ = (UInt16)(psee2c->Summ + scale);
-    NumMasked = MinContext->NumStats;
-    return;
-SYMBOL_FOUND:
-    
-    UInt32 highCount = hiCnt;
-    UInt32 lowCount = highCount - p->Freq;
-    if ( --i )
-    {
-      PPM_CONTEXT::STATE* p1 = p;
-      do
-      {
-        do { p1++; } while (CharMask[p1->Symbol] == EscCount);
-        hiCnt += p1->Freq;
-      }
-      while ( --i );
-    }
-    // SubRange.scale += hiCnt;
-    scale += hiCnt;
-    rangeEncoder->Encode(lowCount, highCount - lowCount, scale);
-    psee2c->update();
-    update2(p);
-  }
-
-  void EncodeSymbol(int c, NRangeCoder::CEncoder *rangeEncoder)
-  {
-    if (MinContext->NumStats != 1)
-      EncodeSymbol1(c, rangeEncoder);
-    else
-      EncodeBinSymbol(c, rangeEncoder);
-    while ( !FoundState )
-    {
-      do
-      {
-        OrderFall++;
-        MinContext = GetContext(MinContext->Suffix);
-        if (MinContext == 0)
-          return; //  S_OK;
-      }
-      while (MinContext->NumStats == NumMasked);
-      EncodeSymbol2(c, rangeEncoder);
-    }
-    NextContext();
-  }
-};
-
-}}
-
-#endif
diff --git a/CPP/7zip/Compress/PpmdEncoder.cpp b/CPP/7zip/Compress/PpmdEncoder.cpp
index 0af2ae7d..d823ffe8 100755
--- a/CPP/7zip/Compress/PpmdEncoder.cpp
+++ b/CPP/7zip/Compress/PpmdEncoder.cpp
@@ -1,10 +1,10 @@
 // PpmdEncoder.cpp
-// 2009-05-30 : Igor Pavlov : Public domain
+// 2009-03-11 : Igor Pavlov : Public domain
 
 #include "StdAfx.h"
 
-// #include <fstream.h>
-// #include <iomanip.h>
+#include "../../../C/Alloc.h"
+#include "../../../C/CpuArch.h"
 
 #include "../Common/StreamUtils.h"
 
@@ -13,55 +13,46 @@
 namespace NCompress {
 namespace NPpmd {
 
-const UInt32 kMinMemSize = (1 << 11);
-const UInt32 kMinOrder = 2;
+static const UInt32 kBufSize = (1 << 20);
 
-/*
-UInt32 g_NumInner = 0;
-UInt32 g_InnerCycles = 0;
+static void *SzBigAlloc(void *, size_t size) { return BigAlloc(size); }
+static void SzBigFree(void *, void *address) { BigFree(address); }
+static ISzAlloc g_BigAlloc = { SzBigAlloc, SzBigFree };
 
-UInt32 g_Encode2 = 0;
-UInt32 g_Encode2Cycles = 0;
-UInt32 g_Encode2Cycles2 = 0;
+CEncoder::CEncoder():
+  _inBuf(NULL),
+  _usedMemSize(1 << 24),
+  _order(6)
+{
+  _rangeEnc.Stream = &_outStream.p;
+  Ppmd7_Construct(&_ppmd);
+}
 
-class CCounter
+CEncoder::~CEncoder()
 {
-public:
-  CCounter() {}
-  ~CCounter()
-  {
-    ofstream ofs("Res.dat");
-    ofs << "innerEncode1    = " << setw(10) << g_NumInner << endl;
-    ofs << "g_InnerCycles   = " << setw(10) << g_InnerCycles << endl;
-    ofs << "g_Encode2       = " << setw(10) << g_Encode2 << endl;
-    ofs << "g_Encode2Cycles = " << setw(10) << g_Encode2Cycles << endl;
-    ofs << "g_Encode2Cycles2= " << setw(10) << g_Encode2Cycles2 << endl;
-    
-  }
-};
-CCounter g_Counter;
-*/
+  ::MidFree(_inBuf);
+  Ppmd7_Free(&_ppmd, &g_BigAlloc);
+}
 
 STDMETHODIMP CEncoder::SetCoderProperties(const PROPID *propIDs, const PROPVARIANT *props, UInt32 numProps)
 {
   for (UInt32 i = 0; i < numProps; i++)
   {
     const PROPVARIANT &prop = props[i];
+    if (prop.vt != VT_UI4)
+      return E_INVALIDARG;
+    UInt32 v = (UInt32)prop.ulVal;
     switch(propIDs[i])
     {
       case NCoderPropID::kUsedMemorySize:
-        if (prop.vt != VT_UI4)
+        if (v < (1 << 16) || v > PPMD7_MAX_MEM_SIZE || (v & 3) != 0)
           return E_INVALIDARG;
-        if (prop.ulVal < kMinMemSize || prop.ulVal > kMaxMemBlockSize)
-          return E_INVALIDARG;
-        _usedMemorySize = (UInt32)prop.ulVal;
+        _usedMemSize = v;
         break;
       case NCoderPropID::kOrder:
-        if (prop.vt != VT_UI4)
-          return E_INVALIDARG;
-        if (prop.ulVal < kMinOrder || prop.ulVal > kMaxOrderCompress)
+        if (v < 2 || v > 32)
           return E_INVALIDARG;
-        _order = (Byte)prop.ulVal;
+        _order = (Byte)v;
         break;
       default:
         return E_INVALIDARG;
@@ -75,74 +66,54 @@ STDMETHODIMP CEncoder::WriteCoderProperties(ISequentialOutStream *outStream)
   const UInt32 kPropSize = 5;
   Byte props[kPropSize];
   props[0] = _order;
-  for (int i = 0; i < 4; i++)
-    props[1 + i] = Byte(_usedMemorySize >> (8 * i));
+  SetUi32(props + 1, _usedMemSize);
   return WriteStream(outStream, props, kPropSize);
 }
 
-const UInt32 kUsedMemorySizeDefault = (1 << 24);
-const int kOrderDefault = 6;
-
-CEncoder::CEncoder():
-  _usedMemorySize(kUsedMemorySizeDefault),
-  _order(kOrderDefault)
-{
-}
-
-
-HRESULT CEncoder::CodeReal(ISequentialInStream *inStream, ISequentialOutStream *outStream,
-      const UInt64 * /* inSize */, const UInt64 * /* outSize */, ICompressProgressInfo *progress)
+HRESULT CEncoder::Code(ISequentialInStream *inStream, ISequentialOutStream *outStream,
+    const UInt64 * /* inSize */, const UInt64 * /* outSize */, ICompressProgressInfo *progress)
 {
-  if (!_inStream.Create(1 << 20))
-    return E_OUTOFMEMORY;
-  if (!_rangeEncoder.Create(1 << 20))
+  if (!_inBuf)
+  {
+    _inBuf = (Byte *)::MidAlloc(kBufSize);
+    if (!_inBuf)
+      return E_OUTOFMEMORY;
+  }
+  if (!_outStream.Alloc(1 << 20))
     return E_OUTOFMEMORY;
-  if (!_info.SubAllocator.StartSubAllocator(_usedMemorySize))
+  if (!Ppmd7_Alloc(&_ppmd, _usedMemSize, &g_BigAlloc))
     return E_OUTOFMEMORY;
 
-  _inStream.SetStream(inStream);
-  _inStream.Init();
-
-  _rangeEncoder.SetStream(outStream);
-  _rangeEncoder.Init();
+  _outStream.Stream = outStream;
+  _outStream.Init();
 
-  CEncoderFlusher flusher(this);
-
-  _info.MaxOrder = 0;
-  _info.StartModelRare(_order);
+  Ppmd7z_RangeEnc_Init(&_rangeEnc);
+  Ppmd7_Init(&_ppmd, _order);
 
+  UInt64 processed = 0;
   for (;;)
   {
-    UInt32 size = (1 << 18);
-    do
+    UInt32 size;
+    RINOK(inStream->Read(_inBuf, kBufSize, &size));
+    if (size == 0)
+    {
+      // We don't write EndMark in PPMD-7z.
+      // Ppmd7_EncodeSymbol(&_ppmd, &_rangeEnc, -1);
+      Ppmd7z_RangeEnc_FlushData(&_rangeEnc);
+      return _outStream.Flush();
+    }
+    for (UInt32 i = 0; i < size; i++)
     {
-      Byte symbol;
-      if (!_inStream.ReadByte(symbol))
-      {
-        // here we can write End Mark for stream version.
-        // In current version this feature is not used.
-        // _info.EncodeSymbol(-1, &_rangeEncoder);
-        return S_OK;
-      }
-      _info.EncodeSymbol(symbol, &_rangeEncoder);
+      Ppmd7_EncodeSymbol(&_ppmd, &_rangeEnc, _inBuf[i]);
+      RINOK(_outStream.Res);
     }
-    while (--size != 0);
-    if (progress != NULL)
+    processed += size;
+    if (progress)
     {
-      UInt64 inSize = _inStream.GetProcessedSize();
-      UInt64 outSize = _rangeEncoder.GetProcessedSize();
-      RINOK(progress->SetRatioInfo(&inSize, &outSize));
+      UInt64 outSize = _outStream.GetProcessed();
+      RINOK(progress->SetRatioInfo(&processed, &outSize));
     }
   }
 }
 
-STDMETHODIMP CEncoder::Code(ISequentialInStream *inStream, ISequentialOutStream *outStream,
-    const UInt64 *inSize, const UInt64 *outSize, ICompressProgressInfo *progress)
-{
-  try { return CodeReal(inStream, outStream, inSize, outSize, progress); }
-  catch(const COutBufferException &e) { return e.ErrorCode; }
-  catch(const CInBufferException &e) { return e.ErrorCode; }
-  catch(...) { return E_FAIL; }
-}
-
 }}
diff --git a/CPP/7zip/Compress/PpmdEncoder.h b/CPP/7zip/Compress/PpmdEncoder.h
index 07b368a7..ed8b3713 100755
--- a/CPP/7zip/Compress/PpmdEncoder.h
+++ b/CPP/7zip/Compress/PpmdEncoder.h
@@ -1,17 +1,16 @@
 // PpmdEncoder.h
-// 2009-05-30 : Igor Pavlov : Public domain
+// 2009-03-11 : Igor Pavlov : Public domain
 
 #ifndef __COMPRESS_PPMD_ENCODER_H
 #define __COMPRESS_PPMD_ENCODER_H
 
+#include "../../../C/Ppmd7.h"
+
 #include "../../Common/MyCom.h"
 
 #include "../ICoder.h"
 
-#include "../Common/InBuffer.h"
-
-#include "PpmdEncode.h"
-#include "RangeCoder.h"
+#include "../Common/CWrappers.h"
 
 namespace NCompress {
 namespace NPpmd {
@@ -22,56 +21,26 @@ class CEncoder :
   public ICompressWriteCoderProperties,
   public CMyUnknownImp
 {
-public:
-  CInBuffer _inStream;
+  Byte *_inBuf;
+  CByteOutBufWrap _outStream;
+  CPpmd7z_RangeEnc _rangeEnc;
+  CPpmd7 _ppmd;
 
-  NRangeCoder::CEncoder _rangeEncoder;
-
-  CEncodeInfo _info;
-  UInt32 _usedMemorySize;
+  UInt32 _usedMemSize;
   Byte _order;
 
-  HRESULT Flush()
-  {
-    _rangeEncoder.FlushData();
-    return _rangeEncoder.FlushStream();
-  }
-
-  void ReleaseStreams()
-  {
-    _inStream.ReleaseStream();
-    _rangeEncoder.ReleaseStream();
-  }
-
-  HRESULT CodeReal(ISequentialInStream *inStream, ISequentialOutStream *outStream,
-      const UInt64 *inSize, const UInt64 *outSize, ICompressProgressInfo *progress);
-
-  class CEncoderFlusher
-  {
-    CEncoder *_encoder;
-  public:
-    CEncoderFlusher(CEncoder *encoder): _encoder(encoder) {}
-    ~CEncoderFlusher()
-    {
-      _encoder->Flush();
-      _encoder->ReleaseStreams();
-    }
-  };
-
 public:
-
   MY_UNKNOWN_IMP2(
       ICompressSetCoderProperties,
       ICompressWriteCoderProperties)
 
   STDMETHOD(Code)(ISequentialInStream *inStream, ISequentialOutStream *outStream,
       const UInt64 *inSize, const UInt64 *outSize, ICompressProgressInfo *progress);
-
   STDMETHOD(SetCoderProperties)(const PROPID *propIDs, const PROPVARIANT *props, UInt32 numProps);
-
   STDMETHOD(WriteCoderProperties)(ISequentialOutStream *outStream);
 
   CEncoder();
+  ~CEncoder();
 };
 
 }}
diff --git a/CPP/7zip/Compress/PpmdSubAlloc.h b/CPP/7zip/Compress/PpmdSubAlloc.h
deleted file mode 100755
index 143f4632..00000000
--- a/CPP/7zip/Compress/PpmdSubAlloc.h
+++ /dev/null
@@ -1,293 +0,0 @@
-// PpmdSubAlloc.h
-// 2009-05-30 : Igor Pavlov : Public domain
-// This code is based on Dmitry Shkarin's PPMdH code (public domain)
-
-#ifndef __COMPRESS_PPMD_SUB_ALLOC_H
-#define __COMPRESS_PPMD_SUB_ALLOC_H
-
-#include "../../../C/Alloc.h"
-
-#include "PpmdType.h"
-
-const UINT N1=4, N2=4, N3=4, N4=(128+3-1*N1-2*N2-3*N3)/4;
-const UINT UNIT_SIZE=12, N_INDEXES=N1+N2+N3+N4;
-
-// Extra 1 * UNIT_SIZE for NULL support
-// Extra 2 * UNIT_SIZE for s0 in GlueFreeBlocks()
-const UInt32 kExtraSize = (UNIT_SIZE * 3);
-const UInt32 kMaxMemBlockSize = 0xFFFFFFFF - kExtraSize;
-
-struct MEM_BLK
-{
-  UInt16 Stamp, NU;
-  UInt32 Next, Prev;
-  void InsertAt(Byte *Base, UInt32 p)
-  {
-    Prev = p;
-    MEM_BLK *pp = (MEM_BLK *)(Base + p);
-    Next = pp->Next;
-    pp->Next = ((MEM_BLK *)(Base + Next))->Prev = (UInt32)((Byte *)this - Base);
-  }
-  void Remove(Byte *Base)
-  {
-    ((MEM_BLK *)(Base + Prev))->Next = Next;
-    ((MEM_BLK *)(Base + Next))->Prev = Prev;
-  }
-};
-
-
-class CSubAllocator
-{
-  UInt32 SubAllocatorSize;
-  Byte Indx2Units[N_INDEXES], Units2Indx[128], GlueCount;
-  UInt32 FreeList[N_INDEXES];
-
-  Byte *Base;
-  Byte *HeapStart, *LoUnit, *HiUnit;
-public:
-  Byte *pText, *UnitsStart;
-  CSubAllocator():
-    SubAllocatorSize(0),
-    GlueCount(0),
-    LoUnit(0),
-    HiUnit(0),
-    pText(0),
-    UnitsStart(0)
-  {
-    memset(Indx2Units, 0, sizeof(Indx2Units));
-    memset(FreeList, 0, sizeof(FreeList));
-  }
-  ~CSubAllocator()
-  {
-    StopSubAllocator();
-  };
-
-  void *GetPtr(UInt32 offset) const { return (offset == 0) ? 0 : (void *)(Base + offset); }
-  void *GetPtrNoCheck(UInt32 offset) const { return (void *)(Base + offset); }
-  UInt32 GetOffset(void *ptr) const { return (ptr == 0) ? 0 : (UInt32)((Byte *)ptr - Base); }
-  UInt32 GetOffsetNoCheck(void *ptr) const { return (UInt32)((Byte *)ptr - Base); }
-  MEM_BLK *GetBlk(UInt32 offset) const { return (MEM_BLK *)(Base + offset); }
-  UInt32 *GetNode(UInt32 offset) const { return (UInt32 *)(Base + offset); }
-
-  void InsertNode(void* p, int indx)
-  {
-    *(UInt32 *)p = FreeList[indx];
-    FreeList[indx] = GetOffsetNoCheck(p);
-  }
-
-  void* RemoveNode(int indx)
-  {
-    UInt32 offset = FreeList[indx];
-    UInt32 *p = GetNode(offset);
-    FreeList[indx] = *p;
-    return (void *)p;
-  }
-  
-  UINT U2B(int NU) const { return (UINT)(NU) * UNIT_SIZE; }
-  
-  void SplitBlock(void* pv, int oldIndx, int newIndx)
-  {
-    int i, UDiff = Indx2Units[oldIndx] - Indx2Units[newIndx];
-    Byte* p = ((Byte*)pv) + U2B(Indx2Units[newIndx]);
-    if (Indx2Units[i = Units2Indx[UDiff-1]] != UDiff)
-    {
-      InsertNode(p, --i);
-      p += U2B(i = Indx2Units[i]);
-      UDiff -= i;
-    }
-    InsertNode(p, Units2Indx[UDiff - 1]);
-  }
-  
-  UInt32 GetUsedMemory() const
-  {
-    UInt32 RetVal = SubAllocatorSize - (UInt32)(HiUnit - LoUnit) - (UInt32)(UnitsStart - pText);
-    for (UInt32 i = 0; i < N_INDEXES; i++)
-      for (UInt32 pn = FreeList[i]; pn != 0; RetVal -= (UInt32)Indx2Units[i] * UNIT_SIZE)
-        pn = *GetNode(pn);
-    return (RetVal >> 2);
-  }
-  
-  UInt32 GetSubAllocatorSize() const { return SubAllocatorSize; }
-
-  void StopSubAllocator()
-  {
-    if (SubAllocatorSize != 0)
-    {
-      BigFree(Base);
-      SubAllocatorSize = 0;
-      Base = 0;
-    }
-  }
-
-  bool StartSubAllocator(UInt32 size)
-  {
-    if (SubAllocatorSize == size)
-      return true;
-    StopSubAllocator();
-    if (size == 0)
-      Base = 0;
-    else
-    {
-      if ((Base = (Byte *)::BigAlloc(size + kExtraSize)) == 0)
-        return false;
-      HeapStart = Base + UNIT_SIZE; // we need such code to support NULL;
-    }
-    SubAllocatorSize = size;
-    return true;
-  }
-
-  void InitSubAllocator()
-  {
-    int i, k;
-    memset(FreeList, 0, sizeof(FreeList));
-    HiUnit = (pText = HeapStart) + SubAllocatorSize;
-    UINT Diff = UNIT_SIZE * (SubAllocatorSize / 8 / UNIT_SIZE * 7);
-    LoUnit = UnitsStart = HiUnit - Diff;
-    for (i = 0, k=1; i < N1 ; i++, k += 1)        Indx2Units[i] = (Byte)k;
-    for (k++; i < N1 + N2      ;i++, k += 2)      Indx2Units[i] = (Byte)k;
-    for (k++; i < N1 + N2 + N3   ;i++,k += 3)     Indx2Units[i] = (Byte)k;
-    for (k++; i < N1 + N2 + N3 + N4; i++, k += 4) Indx2Units[i] = (Byte)k;
-    GlueCount = 0;
-    for (k = i = 0; k < 128; k++)
-    {
-      i += (Indx2Units[i] < k+1);
-        Units2Indx[k] = (Byte)i;
-    }
-  }
-  
-  void GlueFreeBlocks()
-  {
-    UInt32 s0 = (UInt32)(HeapStart + SubAllocatorSize - Base);
-
-    // We need add exta MEM_BLK with Stamp=0
-    GetBlk(s0)->Stamp = 0;
-    s0 += UNIT_SIZE;
-    MEM_BLK *ps0 = GetBlk(s0);
-
-    UInt32 p;
-    int i;
-    if (LoUnit != HiUnit)
-      *LoUnit=0;
-    ps0->Next = ps0->Prev = s0;
-
-    for (i = 0; i < N_INDEXES; i++)
-      while (FreeList[i] != 0)
-      {
-        MEM_BLK *pp = (MEM_BLK *)RemoveNode(i);
-        pp->InsertAt(Base, s0);
-        pp->Stamp = 0xFFFF;
-        pp->NU = Indx2Units[i];
-      }
-    for (p = ps0->Next; p != s0; p = GetBlk(p)->Next)
-    {
-      for (;;)
-      {
-        MEM_BLK *pp = GetBlk(p);
-        MEM_BLK *pp1 = GetBlk(p + pp->NU * UNIT_SIZE);
-        if (pp1->Stamp != 0xFFFF || int(pp->NU) + pp1->NU >= 0x10000)
-          break;
-        pp1->Remove(Base);
-        pp->NU = (UInt16)(pp->NU + pp1->NU);
-      }
-    }
-    while ((p = ps0->Next) != s0)
-    {
-      MEM_BLK *pp = GetBlk(p);
-      pp->Remove(Base);
-      int sz;
-      for (sz = pp->NU; sz > 128; sz -= 128, p += 128 * UNIT_SIZE)
-        InsertNode(Base + p, N_INDEXES - 1);
-      if (Indx2Units[i = Units2Indx[sz-1]] != sz)
-      {
-        int k = sz - Indx2Units[--i];
-        InsertNode(Base + p + (sz - k) * UNIT_SIZE, k - 1);
-      }
-      InsertNode(Base + p, i);
-    }
-  }
-  void* AllocUnitsRare(int indx)
-  {
-    if ( !GlueCount )
-    {
-      GlueCount = 255;
-      GlueFreeBlocks();
-      if (FreeList[indx] != 0)
-        return RemoveNode(indx);
-    }
-    int i = indx;
-    do
-    {
-      if (++i == N_INDEXES)
-      {
-        GlueCount--;
-        i = U2B(Indx2Units[indx]);
-        return (UnitsStart - pText > i) ? (UnitsStart -= i) : (NULL);
-      }
-    } while (FreeList[i] == 0);
-    void* RetVal = RemoveNode(i);
-    SplitBlock(RetVal, i, indx);
-    return RetVal;
-  }
-  
-  void* AllocUnits(int NU)
-  {
-    int indx = Units2Indx[NU - 1];
-    if (FreeList[indx] != 0)
-      return RemoveNode(indx);
-    void* RetVal = LoUnit;
-    LoUnit += U2B(Indx2Units[indx]);
-    if (LoUnit <= HiUnit)
-      return RetVal;
-    LoUnit -= U2B(Indx2Units[indx]);
-    return AllocUnitsRare(indx);
-  }
-  
-  void* AllocContext()
-  {
-    if (HiUnit != LoUnit)
-      return (HiUnit -= UNIT_SIZE);
-    if (FreeList[0] != 0)
-      return RemoveNode(0);
-    return AllocUnitsRare(0);
-  }
-  
-  void* ExpandUnits(void* oldPtr, int oldNU)
-  {
-    int i0=Units2Indx[oldNU - 1], i1=Units2Indx[oldNU - 1 + 1];
-    if (i0 == i1)
-      return oldPtr;
-    void* ptr = AllocUnits(oldNU + 1);
-    if (ptr)
-    {
-      memcpy(ptr, oldPtr, U2B(oldNU));
-      InsertNode(oldPtr, i0);
-    }
-    return ptr;
-  }
-  
-  void* ShrinkUnits(void* oldPtr, int oldNU, int newNU)
-  {
-    int i0 = Units2Indx[oldNU - 1], i1 = Units2Indx[newNU - 1];
-    if (i0 == i1)
-      return oldPtr;
-    if (FreeList[i1] != 0)
-    {
-      void* ptr = RemoveNode(i1);
-      memcpy(ptr, oldPtr, U2B(newNU));
-      InsertNode(oldPtr,i0);
-      return ptr;
-    }
-    else
-    {
-      SplitBlock(oldPtr, i0, i1);
-      return oldPtr;
-    }
-  }
-  
-  void FreeUnits(void* ptr, int oldNU)
-  {
-    InsertNode(ptr, Units2Indx[oldNU - 1]);
-  }
-};
-
-#endif
diff --git a/CPP/7zip/Compress/PpmdType.h b/CPP/7zip/Compress/PpmdType.h
deleted file mode 100755
index e4b0203c..00000000
--- a/CPP/7zip/Compress/PpmdType.h
+++ /dev/null
@@ -1,14 +0,0 @@
-// PpmdType.h
-// 2009-05-30 : Igor Pavlov : Public domain
-// This code is based on Dmitry Shkarin's PPMdH code (public domain)
-
-#ifndef __COMPRESS_PPMD_TYPE_H
-#define __COMPRESS_PPMD_TYPE_H
-
-const int kMaxOrderCompress = 32;
-const int MAX_O = 255; /* maximum allowed model order */
-
-template <class T>
-inline void _PPMD_SWAP(T& t1,T& t2) { T tmp = t1; t1 = t2; t2 = tmp; }
-
-#endif
diff --git a/CPP/7zip/Compress/PpmdZip.cpp b/CPP/7zip/Compress/PpmdZip.cpp
new file mode 100755
index 00000000..f576909f
--- /dev/null
+++ b/CPP/7zip/Compress/PpmdZip.cpp
@@ -0,0 +1,223 @@
+// PpmdZip.cpp
+// 2010-03-11 : Igor Pavlov : Public domain
+
+#include "StdAfx.h"
+
+#include "../../../C/CpuArch.h"
+
+#include "../Common/StreamUtils.h"
+
+#include "PpmdZip.h"
+
+namespace NCompress {
+namespace NPpmdZip {
+
+static void *SzBigAlloc(void *, size_t size) { return BigAlloc(size); }
+static void SzBigFree(void *, void *address) { BigFree(address); }
+static ISzAlloc g_BigAlloc = { SzBigAlloc, SzBigFree };
+
+CDecoder::CDecoder(bool fullFileMode):
+  _fullFileMode(fullFileMode)
+{
+  _ppmd.Stream.In = &_inStream.p;
+  Ppmd8_Construct(&_ppmd);
+}
+
+CDecoder::~CDecoder()
+{
+  Ppmd8_Free(&_ppmd, &g_BigAlloc);
+}
+
+STDMETHODIMP CDecoder::Code(ISequentialInStream *inStream, ISequentialOutStream *outStream,
+    const UInt64 * /* inSize */, const UInt64 *outSize, ICompressProgressInfo *progress)
+{
+  if (!_outStream.Alloc())
+    return E_OUTOFMEMORY;
+  if (!_inStream.Alloc(1 << 20))
+    return E_OUTOFMEMORY;
+
+  _inStream.Stream = inStream;
+  _inStream.Init();
+
+  {
+    Byte buf[2];
+    for (int i = 0; i < 2; i++)
+      buf[i] = _inStream.ReadByte();
+    if (_inStream.Extra)
+      return S_FALSE;
+    
+    UInt32 val = GetUi16(buf);
+    UInt32 order = (val & 0xF) + 1;
+    UInt32 mem = ((val >> 4) & 0xFF) + 1;
+    UInt32 restor = (val >> 12);
+    if (order < 2 || restor > 2)
+      return S_FALSE;
+    
+    #ifndef PPMD8_FREEZE_SUPPORT
+    if (restor == 2)
+      return E_NOTIMPL;
+    #endif
+    
+    if (!Ppmd8_Alloc(&_ppmd, mem << 20, &g_BigAlloc))
+      return E_OUTOFMEMORY;
+    
+    if (!Ppmd8_RangeDec_Init(&_ppmd))
+      return S_FALSE;
+    Ppmd8_Init(&_ppmd, order, restor);
+  }
+
+  bool wasFinished = false;
+  UInt64 processedSize = 0;
+  while (!outSize || processedSize < *outSize)
+  {
+    size_t size = kBufSize;
+    if (outSize != NULL)
+    {
+      const UInt64 rem = *outSize - processedSize;
+      if (size > rem)
+        size = (size_t)rem;
+    }
+    Byte *data = _outStream.Buf;
+    size_t i = 0;
+    int sym = 0;
+    do
+    {
+      sym = Ppmd8_DecodeSymbol(&_ppmd);
+      if (_inStream.Extra || sym < 0)
+        break;
+      data[i] = (Byte)sym;
+    }
+    while (++i != size);
+    processedSize += i;
+
+    RINOK(WriteStream(outStream, _outStream.Buf, i));
+
+    RINOK(_inStream.Res);
+    if (_inStream.Extra)
+      return S_FALSE;
+
+    if (sym < 0)
+    {
+      if (sym != -1)
+        return S_FALSE;
+      wasFinished = true;
+      break;
+    }
+    if (progress)
+    {
+      UInt64 inSize = _inStream.GetProcessed();
+      RINOK(progress->SetRatioInfo(&inSize, &processedSize));
+    }
+  }
+  RINOK(_inStream.Res);
+  if (_fullFileMode)
+  {
+    if (!wasFinished)
+    {
+      int res = Ppmd8_DecodeSymbol(&_ppmd);
+      RINOK(_inStream.Res);
+      if (_inStream.Extra || res != -1)
+        return S_FALSE;
+    }
+    if (!Ppmd8_RangeDec_IsFinishedOK(&_ppmd))
+      return S_FALSE;
+  }
+  return S_OK;
+}
+
+
+// ---------- Encoder ----------
+
+CEncoder::~CEncoder()
+{
+  Ppmd8_Free(&_ppmd, &g_BigAlloc);
+}
+
+HRESULT CEncoder::SetCoderProperties(const PROPID *propIDs, const PROPVARIANT *props, UInt32 numProps)
+{
+  for (UInt32 i = 0; i < numProps; i++)
+  {
+    const PROPVARIANT &prop = props[i];
+    if (prop.vt != VT_UI4)
+      return E_INVALIDARG;
+    UInt32 v = (UInt32)prop.ulVal;
+    switch(propIDs[i])
+    {
+      case NCoderPropID::kAlgorithm:
+        if (v > 1)
+          return E_INVALIDARG;
+        _restor = v;
+        break;
+      case NCoderPropID::kUsedMemorySize:
+        if (v < (1 << 20) || v > (1 << 28))
+          return E_INVALIDARG;
+        _usedMemInMB = v >> 20;
+        break;
+      case NCoderPropID::kOrder:
+        if (v < PPMD8_MIN_ORDER || v > PPMD8_MAX_ORDER)
+          return E_INVALIDARG;
+        _order = (Byte)v;
+        break;
+      default:
+        return E_INVALIDARG;
+    }
+  }
+  return S_OK;
+}
+
+CEncoder::CEncoder():
+  _usedMemInMB(16),
+  _order(6),
+  _restor(PPMD8_RESTORE_METHOD_RESTART)
+{
+  _ppmd.Stream.Out = &_outStream.p;
+  Ppmd8_Construct(&_ppmd);
+}
+
+HRESULT CEncoder::Code(ISequentialInStream *inStream, ISequentialOutStream *outStream,
+      const UInt64 * /* inSize */, const UInt64 * /* outSize */, ICompressProgressInfo *progress)
+{
+  if (!_inStream.Alloc())
+    return E_OUTOFMEMORY;
+  if (!_outStream.Alloc(1 << 20))
+    return E_OUTOFMEMORY;
+  if (!Ppmd8_Alloc(&_ppmd, _usedMemInMB << 20, &g_BigAlloc))
+    return E_OUTOFMEMORY;
+
+  _outStream.Stream = outStream;
+  _outStream.Init();
+
+  Ppmd8_RangeEnc_Init(&_ppmd);
+  Ppmd8_Init(&_ppmd, _order, _restor);
+
+  UInt32 val = (UInt32)((_order - 1) + ((_usedMemInMB - 1) << 4) + (_restor << 12));
+  _outStream.WriteByte((Byte)(val & 0xFF));
+  _outStream.WriteByte((Byte)(val >> 8));
+  RINOK(_outStream.Res);
+
+  UInt64 processed = 0;
+  for (;;)
+  {
+    UInt32 size;
+    RINOK(inStream->Read(_inStream.Buf, kBufSize, &size));
+    if (size == 0)
+    {
+      Ppmd8_EncodeSymbol(&_ppmd, -1);
+      Ppmd8_RangeEnc_FlushData(&_ppmd);
+      return _outStream.Flush();
+    }
+    for (UInt32 i = 0; i < size; i++)
+    {
+      Ppmd8_EncodeSymbol(&_ppmd, _inStream.Buf[i]);
+      RINOK(_outStream.Res);
+    }
+    processed += size;
+    if (progress != NULL)
+    {
+      UInt64 outSize = _outStream.GetProcessed();
+      RINOK(progress->SetRatioInfo(&processed, &outSize));
+    }
+  }
+}
+
+}}
diff --git a/CPP/7zip/Compress/PpmdZip.h b/CPP/7zip/Compress/PpmdZip.h
new file mode 100755
index 00000000..7deb31f4
--- /dev/null
+++ b/CPP/7zip/Compress/PpmdZip.h
@@ -0,0 +1,74 @@
+// PpmdZip.h
+// 2010-03-11 : Igor Pavlov : Public domain
+
+#ifndef __COMPRESS_PPMD_ZIP_H
+#define __COMPRESS_PPMD_ZIP_H
+
+#include "StdAfx.h"
+
+#include "../../../C/Alloc.h"
+#include "../../../C/Ppmd8.h"
+
+#include "../../Common/MyCom.h"
+
+#include "../Common/CWrappers.h"
+
+#include "../ICoder.h"
+
+namespace NCompress {
+namespace NPpmdZip {
+
+static const UInt32 kBufSize = (1 << 20);
+
+struct CBuf
+{
+  Byte *Buf;
+  
+  CBuf(): Buf(0) {}
+  ~CBuf() { ::MidFree(Buf); }
+  bool Alloc()
+  {
+    if (!Buf)
+      Buf = (Byte *)::MidAlloc(kBufSize);
+    return (Buf != 0);
+  }
+};
+
+class CDecoder :
+  public ICompressCoder,
+  public CMyUnknownImp
+{
+  CByteInBufWrap _inStream;
+  CBuf _outStream;
+  CPpmd8 _ppmd;
+  bool _fullFileMode;
+public:
+  MY_UNKNOWN_IMP
+  STDMETHOD(Code)(ISequentialInStream *inStream, ISequentialOutStream *outStream,
+      const UInt64 *inSize, const UInt64 *outSize, ICompressProgressInfo *progress);
+  CDecoder(bool fullFileMode);
+  ~CDecoder();
+};
+
+class CEncoder :
+  public ICompressCoder,
+  public CMyUnknownImp
+{
+  CByteOutBufWrap _outStream;
+  CBuf _inStream;
+  CPpmd8 _ppmd;
+  UInt32 _usedMemInMB;
+  unsigned _order;
+  unsigned _restor;
+public:
+  MY_UNKNOWN_IMP
+  STDMETHOD(Code)(ISequentialInStream *inStream, ISequentialOutStream *outStream,
+      const UInt64 *inSize, const UInt64 *outSize, ICompressProgressInfo *progress);
+  HRESULT SetCoderProperties(const PROPID *propIDs, const PROPVARIANT *props, UInt32 numProps);
+  CEncoder();
+  ~CEncoder();
+};
+
+}}
+
+#endif
diff --git a/CPP/7zip/Compress/Rar3Decoder.cpp b/CPP/7zip/Compress/Rar3Decoder.cpp
index 77106278..af5cef1a 100755
--- a/CPP/7zip/Compress/Rar3Decoder.cpp
+++ b/CPP/7zip/Compress/Rar3Decoder.cpp
@@ -1,9 +1,13 @@
 // Rar3Decoder.cpp
 // According to unRAR license, this code may not be used to develop
 // a program that creates RAR archives
+
+/* This code uses Carryless rangecoder (1999): Dmitry Subbotin : Public domain */
  
 #include "StdAfx.h"
 
+#include "../../../C/Alloc.h"
+
 #include "../Common/StreamUtils.h"
 
 #include "Rar3Decoder.h"
@@ -11,6 +15,10 @@
 namespace NCompress {
 namespace NRar3 {
 
+static void *SzBigAlloc(void *, size_t size) { return BigAlloc(size); }
+static void SzBigFree(void *, void *address) { BigFree(address); }
+static ISzAlloc g_BigAlloc = { SzBigAlloc, SzBigFree };
+
 static const UInt32 kNumAlignReps = 15;
 
 static const UInt32 kSymbolReadTable = 256;
@@ -38,6 +46,48 @@ static const UInt32 kNormalMatchMinLen = 3;
 static const UInt32 kVmDataSizeMax = 1 << 16;
 static const UInt32 kVmCodeSizeMax = 1 << 16;
 
+extern "C" {
+
+static UInt32 Range_GetThreshold(void *pp, UInt32 total)
+{
+  CRangeDecoder *p = (CRangeDecoder *)pp;
+  return p->Code / (p->Range /= total);
+}
+
+static void Range_Decode(void *pp, UInt32 start, UInt32 size)
+{
+  CRangeDecoder *p = (CRangeDecoder *)pp;
+  start *= p->Range;
+  p->Low += start;
+  p->Code -= start;
+  p->Range *= size;
+  p->Normalize();
+}
+
+static UInt32 Range_DecodeBit(void *pp, UInt32 size0)
+{
+  CRangeDecoder *p = (CRangeDecoder *)pp;
+  if (p->Code / (p->Range >>= 14) < size0)
+  {
+    Range_Decode(p, 0, size0);
+    return 0;
+  }
+  else
+  {
+    Range_Decode(p, size0, (1 << 14) - size0);
+    return 1;
+  }
+}
+
+}
+
+CRangeDecoder::CRangeDecoder()
+{
+  s.GetThreshold = Range_GetThreshold;
+  s.Decode = Range_Decode;
+  s.DecodeBit = Range_DecodeBit;
+}
+
 CDecoder::CDecoder():
   _window(0),
   _winPos(0),
@@ -48,6 +98,7 @@ CDecoder::CDecoder():
   _vmCode(0),
   m_IsSolid(false)
 {
+  Ppmd7_Construct(&_ppmd);
 }
 
 CDecoder::~CDecoder()
@@ -55,6 +106,7 @@ CDecoder::~CDecoder()
   InitFilters();
   ::MidFree(_vmData);
   ::MidFree(_window);
+  Ppmd7_Free(&_ppmd, &g_BigAlloc);
 }
 
 HRESULT CDecoder::WriteDataToStream(const Byte *data, UInt32 size)
@@ -294,39 +346,39 @@ bool CDecoder::AddVmCode(UInt32 firstByte, UInt32 codeSize)
 
 bool CDecoder::ReadVmCodeLZ()
 {
-  UInt32 firstByte = m_InBitStream.ReadBits(8);
+  UInt32 firstByte = ReadBits(8);
   UInt32 length = (firstByte & 7) + 1;
   if (length == 7)
-    length = m_InBitStream.ReadBits(8) + 7;
+    length = ReadBits(8) + 7;
   else if (length == 8)
-    length = m_InBitStream.ReadBits(16);
+    length = ReadBits(16);
   if (length > kVmDataSizeMax)
     return false;
   for (UInt32 i = 0; i < length; i++)
-    _vmData[i] = (Byte)m_InBitStream.ReadBits(8);
+    _vmData[i] = (Byte)ReadBits(8);
   return AddVmCode(firstByte, length);
 }
 
 bool CDecoder::ReadVmCodePPM()
 {
   int firstByte = DecodePpmSymbol();
-  if (firstByte == -1)
+  if (firstByte < 0)
     return false;
   UInt32 length = (firstByte & 7) + 1;
   if (length == 7)
   {
     int b1 = DecodePpmSymbol();
-    if (b1 == -1)
+    if (b1 < 0)
       return false;
     length = b1 + 7;
   }
   else if (length == 8)
   {
     int b1 = DecodePpmSymbol();
-    if (b1 == -1)
+    if (b1 < 0)
       return false;
     int b2 = DecodePpmSymbol();
-    if (b2 == -1)
+    if (b2 < 0)
       return false;
     length = b1 * 256 + b2;
   }
@@ -335,7 +387,7 @@ bool CDecoder::ReadVmCodePPM()
   for (UInt32 i = 0; i < length; i++)
   {
     int b = DecodePpmSymbol();
-    if (b == -1)
+    if (b < 0)
       return false;
     _vmData[i] = (Byte)b;
   }
@@ -344,7 +396,7 @@ bool CDecoder::ReadVmCodePPM()
 
 #define RIF(x) { if (!(x)) return S_FALSE; }
 
-UInt32 CDecoder::ReadBits(int numBits) { return m_InBitStream.ReadBits(numBits); }
+UInt32 CDecoder::ReadBits(int numBits) { return m_InBitStream.bitDecoder.ReadBits(numBits); }
 
 /////////////////////////////////////////////////
 // PPM
@@ -359,7 +411,7 @@ HRESULT CDecoder::InitPPM()
     maxMB = (Byte)ReadBits(8);
   else
   {
-    if (_ppm.SubAllocator.GetSubAllocatorSize()== 0)
+    if (PpmError || !Ppmd7_WasAllocated(&_ppmd))
       return S_FALSE;
   }
   if (maxOrder & 0x40)
@@ -371,34 +423,30 @@ HRESULT CDecoder::InitPPM()
   */
   if (reset)
   {
+    PpmError = true;
     maxOrder = (maxOrder & 0x1F) + 1;
     if (maxOrder > 16)
       maxOrder = 16 + (maxOrder - 16) * 3;
     if (maxOrder == 1)
     {
-      // SubAlloc.StopSubAllocator();
-      _ppm.SubAllocator.StopSubAllocator();
+      Ppmd7_Free(&_ppmd, &g_BigAlloc);
       return S_FALSE;
     }
-    // SubAlloc.StartSubAllocator(MaxMB+1);
-    // StartModelRare(maxOrder);
-
-    if (!_ppm.SubAllocator.StartSubAllocator((maxMB + 1) << 20))
+    if (!Ppmd7_Alloc(&_ppmd, (maxMB + 1) << 20, &g_BigAlloc))
       return E_OUTOFMEMORY;
-    _ppm.MaxOrder = 0;
-    _ppm.StartModelRare(maxOrder);
-
+    Ppmd7_Init(&_ppmd, maxOrder);
+    PpmError = false;
   }
-  // return (minContext != NULL);
-
   return S_OK;
 }
 
-int CDecoder::DecodePpmSymbol() { return _ppm.DecodeSymbol(&m_InBitStream); }
+int CDecoder::DecodePpmSymbol() { return Ppmd7_DecodeSymbol(&_ppmd, &m_InBitStream.s); }
 
 HRESULT CDecoder::DecodePPM(Int32 num, bool &keepDecompressing)
 {
   keepDecompressing = false;
+  if (PpmError)
+    return S_FALSE;
   do
   {
     if (((_wrPtr - _winPos) & kWindowMask) < 260 && _wrPtr != _winPos)
@@ -411,15 +459,19 @@ HRESULT CDecoder::DecodePPM(Int32 num, bool &keepDecompressing)
       }
     }
     int c = DecodePpmSymbol();
-    if (c == -1)
+    if (c < 0)
     {
-      // Original code sets PPMError=true here and then it returns S_OK. Why ???
-      // return S_OK;
+      PpmError = true;
       return S_FALSE;
     }
     if (c == PpmEscChar)
     {
       int nextCh = DecodePpmSymbol();
+      if (nextCh < 0)
+      {
+        PpmError = true;
+        return S_FALSE;
+      }
       if (nextCh == 0)
         return ReadTables(keepDecompressing);
       if (nextCh == 2 || nextCh == -1)
@@ -427,7 +479,10 @@ HRESULT CDecoder::DecodePPM(Int32 num, bool &keepDecompressing)
       if (nextCh == 3)
       {
         if (!ReadVmCodePPM())
+        {
+          PpmError = true;
           return S_FALSE;
+        }
         continue;
       }
       if (nextCh == 4 || nextCh == 5)
@@ -439,16 +494,22 @@ HRESULT CDecoder::DecodePPM(Int32 num, bool &keepDecompressing)
           for (int i = 0; i < 3; i++)
           {
             int c = DecodePpmSymbol();
-            if (c == -1)
-              return S_OK;
+            if (c < 0)
+            {
+              PpmError = true;
+              return S_FALSE;
+            }
             distance = (distance << 8) + (Byte)c;
           }
           distance++;
           length += 28;
         }
         int c = DecodePpmSymbol();
-        if (c == -1)
-          return S_OK;
+        if (c < 0)
+        {
+          PpmError = true;
+          return S_FALSE;
+        }
         length += c;
         if (distance >= _lzSize)
           return S_FALSE;
@@ -471,7 +532,7 @@ HRESULT CDecoder::DecodePPM(Int32 num, bool &keepDecompressing)
 HRESULT CDecoder::ReadTables(bool &keepDecompressing)
 {
   keepDecompressing = true;
-  ReadBits((8 - m_InBitStream.GetBitPosition()) & 7);
+  ReadBits((8 - m_InBitStream.bitDecoder.GetBitPosition()) & 7);
   if (ReadBits(1) != 0)
   {
     _lzMode = false;
@@ -510,7 +571,7 @@ HRESULT CDecoder::ReadTables(bool &keepDecompressing)
   i = 0;
   while (i < kTablesSizesSum)
   {
-    UInt32 number = m_LevelDecoder.DecodeSymbol(&m_InBitStream);
+    UInt32 number = m_LevelDecoder.DecodeSymbol(&m_InBitStream.bitDecoder);
     if (number < 16)
     {
       newLevels[i] = Byte((number + m_LastLevels[i]) & 15);
@@ -620,7 +681,7 @@ HRESULT CDecoder::DecodeLZ(bool &keepDecompressing)
         return S_OK;
       }
     }
-    UInt32 number = m_MainDecoder.DecodeSymbol(&m_InBitStream);
+    UInt32 number = m_MainDecoder.DecodeSymbol(&m_InBitStream.bitDecoder);
     if (number < 256)
     {
       PutByte((Byte)number);
@@ -664,10 +725,10 @@ HRESULT CDecoder::DecodeLZ(bool &keepDecompressing)
         rep0 = distance;
       }
 
-      UInt32 number = m_LenDecoder.DecodeSymbol(&m_InBitStream);
+      UInt32 number = m_LenDecoder.DecodeSymbol(&m_InBitStream.bitDecoder);
       if (number >= kLenTableSize)
         return S_FALSE;
-      length = 2 + kLenStart[number] + m_InBitStream.ReadBits(kLenDirectBits[number]);
+      length = 2 + kLenStart[number] + m_InBitStream.bitDecoder.ReadBits(kLenDirectBits[number]);
     }
     else
     {
@@ -677,14 +738,14 @@ HRESULT CDecoder::DecodeLZ(bool &keepDecompressing)
       if (number < 271)
       {
         number -= 263;
-        rep0 = kLen2DistStarts[number] + m_InBitStream.ReadBits(kLen2DistDirectBits[number]);
+        rep0 = kLen2DistStarts[number] + m_InBitStream.bitDecoder.ReadBits(kLen2DistDirectBits[number]);
         length = 2;
       }
       else if (number < 299)
       {
         number -= 271;
-        length = kNormalMatchMinLen + (UInt32)kLenStart[number] + m_InBitStream.ReadBits(kLenDirectBits[number]);
-        UInt32 number = m_DistDecoder.DecodeSymbol(&m_InBitStream);
+        length = kNormalMatchMinLen + (UInt32)kLenStart[number] + m_InBitStream.bitDecoder.ReadBits(kLenDirectBits[number]);
+        UInt32 number = m_DistDecoder.DecodeSymbol(&m_InBitStream.bitDecoder);
         if (number >= kDistTableSize)
           return S_FALSE;
         rep0 = kDistStart[number];
@@ -692,7 +753,7 @@ HRESULT CDecoder::DecodeLZ(bool &keepDecompressing)
         if (number >= (kNumAlignBits * 2) + 2)
         {
           if (numBits > kNumAlignBits)
-            rep0 += (m_InBitStream.ReadBits(numBits - kNumAlignBits) << kNumAlignBits);
+            rep0 += (m_InBitStream.bitDecoder.ReadBits(numBits - kNumAlignBits) << kNumAlignBits);
           if (PrevAlignCount > 0)
           {
             PrevAlignCount--;
@@ -700,7 +761,7 @@ HRESULT CDecoder::DecodeLZ(bool &keepDecompressing)
           }
           else
           {
-            UInt32 number = m_AlignDecoder.DecodeSymbol(&m_InBitStream);
+            UInt32 number = m_AlignDecoder.DecodeSymbol(&m_InBitStream.bitDecoder);
             if (number < (1 << kNumAlignBits))
             {
               rep0 += number;
@@ -716,7 +777,7 @@ HRESULT CDecoder::DecodeLZ(bool &keepDecompressing)
           }
         }
         else
-          rep0 += m_InBitStream.ReadBits(numBits);
+          rep0 += m_InBitStream.bitDecoder.ReadBits(numBits);
         length += ((kDistLimit4 - rep0) >> 31) + ((kDistLimit3 - rep0) >> 31);
       }
       else
@@ -749,6 +810,7 @@ HRESULT CDecoder::CodeReal(ICompressProgressInfo *progress)
     memset(m_LastLevels, 0, kTablesSizesSum);
     TablesRead = false;
     PpmEscChar = 2;
+    PpmError = true;
     InitFilters();
   }
   if (!m_IsSolid || !TablesRead)
@@ -770,7 +832,7 @@ HRESULT CDecoder::CodeReal(ICompressProgressInfo *progress)
     {
       RINOK(DecodePPM(1 << 18, keepDecompressing))
     }
-    UInt64 packSize = m_InBitStream.GetProcessedSize();
+    UInt64 packSize = m_InBitStream.bitDecoder.GetProcessedSize();
     RINOK(progress->SetRatioInfo(&packSize, &_writtenFileSize));
     if (!keepDecompressing)
       break;
@@ -804,14 +866,14 @@ STDMETHODIMP CDecoder::Code(ISequentialInStream *inStream, ISequentialOutStream
       if (_window == 0)
         return E_OUTOFMEMORY;
     }
-    if (!m_InBitStream.Create(1 << 20))
+    if (!m_InBitStream.bitDecoder.Create(1 << 20))
       return E_OUTOFMEMORY;
     if (!_vm.Create())
       return E_OUTOFMEMORY;
 
     
-    m_InBitStream.SetStream(inStream);
-    m_InBitStream.Init();
+    m_InBitStream.bitDecoder.SetStream(inStream);
+    m_InBitStream.bitDecoder.Init();
     _outStream = outStream;
    
     CCoderReleaser coderReleaser(this);
diff --git a/CPP/7zip/Compress/Rar3Decoder.h b/CPP/7zip/Compress/Rar3Decoder.h
index 73d4c224..99b647dc 100755
--- a/CPP/7zip/Compress/Rar3Decoder.h
+++ b/CPP/7zip/Compress/Rar3Decoder.h
@@ -2,9 +2,13 @@
 // According to unRAR license, this code may not be used to develop
 // a program that creates RAR archives
 
+/* This code uses Carryless rangecoder (1999): Dmitry Subbotin : Public domain */
+
 #ifndef __COMPRESS_RAR3_DECODER_H
 #define __COMPRESS_RAR3_DECODER_H
 
+#include "../../../C/Ppmd7.h"
+
 #include "../../Common/MyCom.h"
 
 #include "../ICoder.h"
@@ -13,7 +17,6 @@
 
 #include "BitmDecoder.h"
 #include "HuffmanDecoder.h"
-#include "PpmdDecode.h"
 #include "Rar3Vm.h"
 
 namespace NCompress {
@@ -38,8 +41,8 @@ const UInt32 kTablesSizesSum = kMainTableSize + kDistTableSize + kAlignTableSize
 class CBitDecoder
 {
   UInt32 m_Value;
+  unsigned m_BitPos;
 public:
-  UInt32 m_BitPos;
   CInBuffer m_Stream;
   bool Create(UInt32 bufferSize) { return m_Stream.Create(bufferSize); }
   void SetStream(ISequentialInStream *inStream) { m_Stream.SetStream(inStream);}
@@ -50,26 +53,13 @@ public:
     m_Stream.Init();
     m_BitPos = 0;
     m_Value = 0;
-    // m_BitPos = kNumBigValueBits;
-    // Normalize();
   }
   
-  UInt64 GetProcessedSize() const
-    { return m_Stream.GetProcessedSize() - (m_BitPos) / 8; }
+  UInt64 GetProcessedSize() const { return m_Stream.GetProcessedSize() - (m_BitPos) / 8; }
   UInt32 GetBitPosition() const { return ((8 - m_BitPos) & 7); }
   
-  /*
-  void Normalize()
+  UInt32 GetValue(unsigned numBits)
   {
-    for (;m_BitPos >= 8; m_BitPos -= 8)
-      m_Value = (m_Value << 8) | m_Stream.ReadByte();
-  }
-  */
-
-  UInt32 GetValue(UInt32 numBits)
-  {
-    // return (m_Value << m_BitPos) >> (kNumBigValueBits - numBits);
-    // return ((m_Value >> (8 - m_BitPos)) & kMask) >> (kNumValueBits - numBits);
     if (m_BitPos < numBits)
     {
       m_BitPos += 8;
@@ -83,13 +73,13 @@ public:
     return m_Value >> (m_BitPos - numBits);
   }
   
-  void MovePos(UInt32 numBits)
+  void MovePos(unsigned numBits)
   {
     m_BitPos -= numBits;
     m_Value = m_Value & ((1 << m_BitPos) - 1);
   }
   
-  UInt32 ReadBits(UInt32 numBits)
+  UInt32 ReadBits(unsigned numBits)
   {
     UInt32 res = GetValue(numBits);
     MovePos(numBits);
@@ -97,67 +87,42 @@ public:
   }
 };
 
-const int kNumTopBits = 24;
-const UInt32 kTopValue = (1 << kNumTopBits);
+const UInt32 kTopValue = (1 << 24);
 const UInt32 kBot = (1 << 15);
 
-class CRangeDecoder:public NPpmd::CRangeDecoderVirt, public CBitDecoder
+struct CRangeDecoder
 {
-public:
+  IPpmd7_RangeDec s;
   UInt32 Range;
-  UInt32 Low;
   UInt32 Code;
+  UInt32 Low;
+  CBitDecoder bitDecoder;
+  SRes Res;
 
-  void Normalize()
-  {
-    while ((Low ^ (Low + Range)) < kTopValue ||
-       Range < kBot && ((Range = (0 - Low) & (kBot - 1)), 1))
-    {
-      Code = (Code << 8) | m_Stream.ReadByte();
-      Range <<= 8;
-      Low <<= 8;
-    }
-  }
-  
+public:
   void InitRangeCoder()
   {
     Code = 0;
     Low = 0;
     Range = 0xFFFFFFFF;
-    for(int i = 0; i < 4; i++)
-      Code = (Code << 8) | ReadBits(8);
-  }
-
-  virtual UInt32 GetThreshold(UInt32 total)
-  {
-    return (Code - Low) / ( Range /= total);
-  }
-
-  virtual void Decode(UInt32 start, UInt32 size)
-  {
-    Low += start * Range;
-    Range *= size;
-    Normalize();
+    for (int i = 0; i < 4; i++)
+      Code = (Code << 8) | bitDecoder.ReadBits(8);
   }
 
-  virtual UInt32 DecodeBit(UInt32 size0, UInt32 numTotalBits)
+  void Normalize()
   {
-    if (((Code - Low) / (Range >>= numTotalBits)) < size0)
-    {
-      Decode(0, size0);
-      return 0;
-    }
-    else
+    while ((Low ^ (Low + Range)) < kTopValue ||
+       Range < kBot && ((Range = (0 - Low) & (kBot - 1)), 1))
     {
-      Decode(size0, (1 << numTotalBits) - size0);
-      return 1;
+      Code = (Code << 8) | bitDecoder.m_Stream.ReadByte();
+      Range <<= 8;
+      Low <<= 8;
     }
   }
 
-  // UInt64 GetProcessedSizeRangeCoder() {return Stream.GetProcessedSize(); }
+  CRangeDecoder();
 };
 
-
 struct CFilter: public NVm::CProgram
 {
   CRecordVector<Byte> GlobalData;
@@ -219,8 +184,9 @@ class CDecoder:
 
   bool TablesRead;
 
-  NPpmd::CDecodeInfo _ppm;
+  CPpmd7 _ppmd;
   int PpmEscChar;
+  bool PpmError;
   
   HRESULT WriteDataToStream(const Byte *data, UInt32 size);
   HRESULT WriteData(const Byte *data, UInt32 size);
@@ -252,7 +218,7 @@ public:
   void ReleaseStreams()
   {
     _outStream.Release();
-    m_InBitStream.ReleaseStream();
+    m_InBitStream.bitDecoder.ReleaseStream();
   }
 
   STDMETHOD(Code)(ISequentialInStream *inStream, ISequentialOutStream *outStream,
diff --git a/CPP/7zip/Crypto/ZipCrypto.cpp b/CPP/7zip/Crypto/ZipCrypto.cpp
index f5972c57..baaaf98e 100755
--- a/CPP/7zip/Crypto/ZipCrypto.cpp
+++ b/CPP/7zip/Crypto/ZipCrypto.cpp
@@ -15,114 +15,74 @@ namespace NZip {
 void CCipher::UpdateKeys(Byte b)
 {
   Keys[0] = CRC_UPDATE_BYTE(Keys[0], b);
-  Keys[1] += Keys[0] & 0xff;
-  Keys[1] = Keys[1] * 134775813L + 1;
+  Keys[1] = (Keys[1] + (Keys[0] & 0xFF)) * 0x8088405 + 1;
   Keys[2] = CRC_UPDATE_BYTE(Keys[2], (Byte)(Keys[1] >> 24));
 }
 
-void CCipher::SetPassword(const Byte *password, UInt32 passwordLen)
+STDMETHODIMP CCipher::CryptoSetPassword(const Byte *password, UInt32 passwordLen)
 {
-  Keys[0] = 305419896L;
-  Keys[1] = 591751049L;
-  Keys[2] = 878082192L;
-  for (UInt32 i = 0; i < passwordLen; i++)
+  Keys[0] = 0x12345678;
+  Keys[1] = 0x23456789;
+  Keys[2] = 0x34567890;
+  UInt32 i;
+  for (i = 0; i < passwordLen; i++)
     UpdateKeys(password[i]);
-}
-
-Byte CCipher::DecryptByteSpec()
-{
-  UInt32 temp = Keys[2] | 2;
-  return (Byte)((temp * (temp ^ 1)) >> 8);
-}
-
-Byte CCipher::DecryptByte(Byte b)
-{
-  Byte c = (Byte)(b ^ DecryptByteSpec());
-  UpdateKeys(c);
-  return c;
-}
-
-Byte CCipher::EncryptByte(Byte b)
-{
-  Byte c = (Byte)(b ^ DecryptByteSpec());
-  UpdateKeys(b);
-  return c;
-}
-
-void CCipher::DecryptHeader(Byte *buf)
-{
-  for (unsigned i = 0; i < kHeaderSize; i++)
-    buf[i] = DecryptByte(buf[i]);
-}
-
-void CCipher::EncryptHeader(Byte *buf)
-{
-  for (unsigned i = 0; i < kHeaderSize; i++)
-    buf[i] = EncryptByte(buf[i]);
-}
-
-STDMETHODIMP CEncoder::CryptoSetPassword(const Byte *data, UInt32 size)
-{
-  _cipher.SetPassword(data, size);
+  for (i = 0; i < 3; i++)
+    Keys2[i] = Keys[i];
   return S_OK;
 }
 
-STDMETHODIMP CEncoder::CryptoSetCRC(UInt32 crc)
+STDMETHODIMP CCipher::Init()
 {
-  _crc = crc;
   return S_OK;
 }
 
-STDMETHODIMP CEncoder::Init()
+Byte CCipher::DecryptByteSpec()
 {
-  return S_OK;
+  UInt32 temp = Keys[2] | 2;
+  return (Byte)((temp * (temp ^ 1)) >> 8);
 }
 
-HRESULT CEncoder::WriteHeader(ISequentialOutStream *outStream)
+HRESULT CEncoder::WriteHeader(ISequentialOutStream *outStream, UInt32 crc)
 {
-  Byte header[kHeaderSize];
-  g_RandomGenerator.Generate(header, kHeaderSize - 2);
-
-  header[kHeaderSize - 1] = Byte(_crc >> 24);
-  header[kHeaderSize - 2] = Byte(_crc >> 16);
-
-  _cipher.EncryptHeader(header);
-  return WriteStream(outStream, header, kHeaderSize);
+  Byte h[kHeaderSize];
+  g_RandomGenerator.Generate(h, kHeaderSize - 2);
+  h[kHeaderSize - 1] = (Byte)(crc >> 24);
+  h[kHeaderSize - 2] = (Byte)(crc >> 16);
+  RestoreKeys();
+  Filter(h, kHeaderSize);
+  return WriteStream(outStream, h, kHeaderSize);
 }
 
 STDMETHODIMP_(UInt32) CEncoder::Filter(Byte *data, UInt32 size)
 {
-  UInt32 i;
-  for (i = 0; i < size; i++)
-    data[i] = _cipher.EncryptByte(data[i]);
-  return i;
-}
-
-STDMETHODIMP CDecoder::CryptoSetPassword(const Byte *data, UInt32 size)
-{
-  _cipher.SetPassword(data, size);
-  return S_OK;
+  for (UInt32 i = 0; i < size; i++)
+  {
+    Byte b = data[i];
+    data[i] = (Byte)(b ^ DecryptByteSpec());;
+    UpdateKeys(b);
+  }
+  return size;
 }
 
 HRESULT CDecoder::ReadHeader(ISequentialInStream *inStream)
 {
-  Byte header[kHeaderSize];
-  RINOK(ReadStream_FAIL(inStream, header, kHeaderSize));
-  _cipher.DecryptHeader(header);
-  return S_OK;
-}
-
-STDMETHODIMP CDecoder::Init()
-{
+  Byte h[kHeaderSize];
+  RINOK(ReadStream_FAIL(inStream, h, kHeaderSize));
+  RestoreKeys();
+  Filter(h, kHeaderSize);
   return S_OK;
 }
 
 STDMETHODIMP_(UInt32) CDecoder::Filter(Byte *data, UInt32 size)
 {
-  UInt32 i;
-  for (i = 0; i < size; i++)
-    data[i] = _cipher.DecryptByte(data[i]);
-  return i;
+  for (UInt32 i = 0; i < size; i++)
+  {
+    Byte c = (Byte)(data[i] ^ DecryptByteSpec());
+    UpdateKeys(c);
+    data[i] = c;
+  }
+  return size;
 }
 
 }}
diff --git a/CPP/7zip/Crypto/ZipCrypto.h b/CPP/7zip/Crypto/ZipCrypto.h
index 040ebb09..6f104beb 100755
--- a/CPP/7zip/Crypto/ZipCrypto.h
+++ b/CPP/7zip/Crypto/ZipCrypto.h
@@ -13,59 +13,44 @@ namespace NZip {
 
 const unsigned kHeaderSize = 12;
 
-class CCipher
+class CCipher:
+  public ICompressFilter,
+  public ICryptoSetPassword,
+  public CMyUnknownImp
 {
   UInt32 Keys[3];
+  UInt32 Keys2[3];
 
+protected:
   void UpdateKeys(Byte b);
   Byte DecryptByteSpec();
+  void RestoreKeys()
+  {
+    for (int i = 0; i < 3; i++)
+      Keys[i] = Keys2[i];
+  }
+
 public:
-  void SetPassword(const Byte *password, UInt32 passwordLen);
-  Byte DecryptByte(Byte b);
-  Byte EncryptByte(Byte b);
-  void DecryptHeader(Byte *buf);
-  void EncryptHeader(Byte *buf);
+  STDMETHOD(Init)();
+  STDMETHOD(CryptoSetPassword)(const Byte *data, UInt32 size);
 };
 
-class CEncoder :
-  public ICompressFilter,
-  public ICryptoSetPassword,
-  public ICryptoSetCRC,
-  public CMyUnknownImp
+class CEncoder: public CCipher
 {
-  CCipher _cipher;
-  UInt32 _crc;
 public:
-  MY_UNKNOWN_IMP2(
-      ICryptoSetPassword,
-      ICryptoSetCRC
-  )
-  STDMETHOD(Init)();
+  MY_UNKNOWN_IMP1(ICryptoSetPassword)
   STDMETHOD_(UInt32, Filter)(Byte *data, UInt32 size);
-
-  STDMETHOD(CryptoSetPassword)(const Byte *data, UInt32 size);
-  STDMETHOD(CryptoSetCRC)(UInt32 crc);
-  HRESULT WriteHeader(ISequentialOutStream *outStream);
+  HRESULT WriteHeader(ISequentialOutStream *outStream, UInt32 crc);
 };
 
-
-class CDecoder:
-  public ICompressFilter,
-  public ICryptoSetPassword,
-  public CMyUnknownImp
+class CDecoder: public CCipher
 {
-  CCipher _cipher;
 public:
   MY_UNKNOWN_IMP1(ICryptoSetPassword)
-
-  STDMETHOD(Init)();
   STDMETHOD_(UInt32, Filter)(Byte *data, UInt32 size);
-  STDMETHOD(CryptoSetPassword)(const Byte *data, UInt32 size);
-
   HRESULT ReadHeader(ISequentialInStream *inStream);
 };
 
-
 }}
 
 #endif
diff --git a/CPP/7zip/Guid.txt b/CPP/7zip/Guid.txt
index 9843b16e..187ad49a 100755
--- a/CPP/7zip/Guid.txt
+++ b/CPP/7zip/Guid.txt
@@ -124,6 +124,7 @@ Handler GUIDs:
   0A lzma
   0B lzma86
   0C xz
+  0D ppmd
 
   D4 APM
   D5 Mslz
diff --git a/CPP/7zip/MyVersion.h b/CPP/7zip/MyVersion.h
index 28fbfaaa..6b6a3476 100755
--- a/CPP/7zip/MyVersion.h
+++ b/CPP/7zip/MyVersion.h
@@ -1,8 +1,8 @@
 #define MY_VER_MAJOR 9
-#define MY_VER_MINOR 10
+#define MY_VER_MINOR 11
 #define MY_VER_BUILD 0
-#define MY_VERSION "9.10 beta"
-#define MY_7ZIP_VERSION "7-Zip 9.10 beta"
-#define MY_DATE "2009-12-22"
-#define MY_COPYRIGHT "Copyright (c) 1999-2009 Igor Pavlov"
+#define MY_VERSION "9.11 beta"
+#define MY_7ZIP_VERSION "7-Zip 9.11 beta"
+#define MY_DATE "2010-03-15"
+#define MY_COPYRIGHT "Copyright (c) 1999-2010 Igor Pavlov"
 #define MY_VERSION_COPYRIGHT_DATE MY_VERSION "  " MY_COPYRIGHT "  " MY_DATE
diff --git a/CPP/7zip/UI/Common/Extract.cpp b/CPP/7zip/UI/Common/Extract.cpp
index f9de663b..f4c126a4 100755
--- a/CPP/7zip/UI/Common/Extract.cpp
+++ b/CPP/7zip/UI/Common/Extract.cpp
@@ -55,8 +55,9 @@ static HRESULT DecompressArchive(
   UString outDir = options.OutputDir;
   outDir.Replace(L"*", GetCorrectFsPath(arc.DefaultName));
   #ifdef _WIN32
-  outDir.TrimRight();
-  outDir = GetCorrectFullFsPath(outDir);
+  // GetCorrectFullFsPath doesn't like "..".
+  // outDir.TrimRight();
+  // outDir = GetCorrectFullFsPath(outDir);
   #endif
 
   if (!outDir.IsEmpty())
diff --git a/CPP/7zip/UI/Console/List.cpp b/CPP/7zip/UI/Console/List.cpp
index f0f5c315..17f5392a 100755
--- a/CPP/7zip/UI/Console/List.cpp
+++ b/CPP/7zip/UI/Console/List.cpp
@@ -590,9 +590,14 @@ HRESULT ListArchives(CCodecs *codecs, const CIntVector &formatIndices,
     {
       if (archiveLink.VolumePaths.Size() != 0)
         arcPackSize += archiveLink.VolumesSize;
-      totalPackSize = arcPackSize;
+      totalPackSize = (numFiles == 0) ? 0 : arcPackSize;
       totalPackSizePointer = &totalPackSize;
     }
+    if (totalUnPackSizePointer == 0 && numFiles == 0)
+    {
+      totalUnPackSize = 0;
+      totalUnPackSizePointer = &totalUnPackSize;
+    }
     if (enableHeaders && !techMode)
     {
       fieldPrinter.PrintTitleLines();
diff --git a/CPP/7zip/UI/Far/ExtractEngine.cpp b/CPP/7zip/UI/Far/ExtractEngine.cpp
index 677cac79..02d14f83 100755
--- a/CPP/7zip/UI/Far/ExtractEngine.cpp
+++ b/CPP/7zip/UI/Far/ExtractEngine.cpp
@@ -118,6 +118,12 @@ STDMETHODIMP CExtractCallBackImp::MessageError(const wchar_t *message)
   return S_OK;
 }
 
+static void ReduceString(UString &s, int size)
+{
+  if (s.Length() > size)
+    s = s.Left(size / 2) + UString(L" ... ") + s.Right(size / 2);
+}
+
 STDMETHODIMP CExtractCallBackImp::SetOperationResult(Int32 operationResult, bool encrypted)
 {
   switch(operationResult)
@@ -145,10 +151,11 @@ STDMETHODIMP CExtractCallBackImp::SetOperationResult(Int32 operationResult, bool
         default:
           return E_FAIL;
       }
-      char buffer[512];
-      const AString s = UnicodeStringToMultiByte(m_CurrentFilePath, m_CodePage);
-      sprintf(buffer, g_StartupInfo.GetMsgString(idMessage), (const char *)s);
-      if (g_StartupInfo.ShowMessage(buffer) == -1)
+      UString name = m_CurrentFilePath;
+      ReduceString(name, 70);
+      AString s = g_StartupInfo.GetMsgString(idMessage);
+      s.Replace(" '%s'", "");
+      if (g_StartupInfo.ShowMessageLines(s + (AString)("\n") + UnicodeStringToMultiByte(name, m_CodePage)) == -1)
         return E_ABORT;
     }
   }
diff --git a/CPP/7zip/UI/FileManager/PanelSplitFile.cpp b/CPP/7zip/UI/FileManager/PanelSplitFile.cpp
index 150c71b1..213c2d48 100755
--- a/CPP/7zip/UI/FileManager/PanelSplitFile.cpp
+++ b/CPP/7zip/UI/FileManager/PanelSplitFile.cpp
@@ -29,6 +29,16 @@ struct CVolSeqName
   UString ChangedPart;
   CVolSeqName(): ChangedPart(L"000") {};
 
+  void SetNumDigits(UInt64 numVolumes)
+  {
+    ChangedPart = L"000";
+    while (numVolumes > 999)
+    {
+      numVolumes /= 10;
+      ChangedPart += L'0';
+    }
+  }
+
   bool ParseName(const UString &name)
   {
     if (name.Right(2) != L"01")
@@ -81,6 +91,7 @@ class CThreadSplit: public CProgressThreadVirt
 public:
   UString FilePath;
   UString VolBasePath;
+  UInt64 NumVolumes;
   CRecordVector<UInt64> VolumeSizes;
 };
 
@@ -96,6 +107,7 @@ HRESULT CThreadSplit::ProcessVirt()
   Byte *buffer = (Byte *)(void *)bufferObject;
   UInt64 curVolSize = 0;
   CVolSeqName seqName;
+  seqName.SetNumDigits(NumVolumes);
   UInt64 length;
   if (!inFile.GetLength(length))
     return GetLastError();
@@ -226,6 +238,7 @@ void CApp::Split()
 
   {
   CThreadSplit spliter;
+  spliter.NumVolumes = numVolumes;
 
   CProgressDialog &progressDialog = spliter.ProgressDialog;
 
@@ -241,7 +254,7 @@ void CApp::Split()
 
 
   spliter.FilePath = srcPath + itemName;
-  spliter.VolBasePath = path  + itemName;
+  spliter.VolBasePath = path + itemName;
   spliter.VolumeSizes = splitDialog.VolumeSizes;
   
   // if (splitDialog.VolumeSizes.Size() == 0) return;
diff --git a/DOC/7zip.inf b/DOC/7zip.inf
index 9caf8ffb..373cc9aa 100755
--- a/DOC/7zip.inf
+++ b/DOC/7zip.inf
@@ -10,8 +10,8 @@ AppName = "7-Zip"
 InstallDir = %CE1%\%AppName%
 
 [Strings]
-AppVer = "9.10"
-AppDate = "2009-12-22"
+AppVer = "9.11"
+AppDate = "2010-03-14"
 
 [CEDevice]
 ; ProcessorType = 2577 ; ARM
diff --git a/DOC/7zip.nsi b/DOC/7zip.nsi
index 5e996885..1ce17211 100755
--- a/DOC/7zip.nsi
+++ b/DOC/7zip.nsi
@@ -2,7 +2,7 @@
 ;Defines
 
 !define VERSION_MAJOR 9
-!define VERSION_MINOR 10
+!define VERSION_MINOR 11
 !define VERSION_POSTFIX_FULL " beta"
 !ifdef WIN64
 !ifdef IA64
@@ -216,6 +216,7 @@ Section
   File it.txt
   File ja.txt
   File ka.txt
+  File kk.txt
   File ko.txt
   File ku.txt
   File ku-ckb.txt
@@ -405,6 +406,7 @@ Section "Uninstall"
   Delete $INSTDIR\Lang\it.txt
   Delete $INSTDIR\Lang\ja.txt
   Delete $INSTDIR\Lang\ka.txt
+  Delete $INSTDIR\Lang\kk.txt
   Delete $INSTDIR\Lang\ko.txt
   Delete $INSTDIR\Lang\ku.txt
   Delete $INSTDIR\Lang\ku-ckb.txt
diff --git a/DOC/7zip.wxs b/DOC/7zip.wxs
index 809ab0fc..f7009310 100755
--- a/DOC/7zip.wxs
+++ b/DOC/7zip.wxs
@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 
 <?define VerMajor = "9" ?>
-<?define VerMinor = "10" ?>
+<?define VerMinor = "11" ?>
 <?define VerBuild = "00" ?>
 <?define MmVer = "$(var.VerMajor).$(var.VerMinor)" ?>
 <?define MmHex = "0$(var.VerMajor)$(var.VerMinor)" ?>
@@ -258,6 +258,7 @@
               <File Id="it.txt" Name="it.txt" />
               <File Id="ja.txt" Name="ja.txt" />
               <File Id="ka.txt" Name="ka.txt" />
+              <File Id="kk.txt" Name="kk.txt" />
               <File Id="ko.txt" Name="ko.txt" />
               <File Id="ku.txt" Name="ku.txt" />
               <File Id="ku_ckb.txt" Name="ku-ckb.txt" />
diff --git a/DOC/License.txt b/DOC/License.txt
index a2f6df0b..a6a72185 100755
--- a/DOC/License.txt
+++ b/DOC/License.txt
@@ -3,7 +3,7 @@
   License for use and distribution
   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
-  7-Zip Copyright (C) 1999-2009 Igor Pavlov.
+  7-Zip Copyright (C) 1999-2010 Igor Pavlov.
 
   Licenses for files are:
 
diff --git a/DOC/lzma.txt b/DOC/lzma.txt
index a38a8e02..4485be6e 100755
--- a/DOC/lzma.txt
+++ b/DOC/lzma.txt
@@ -1,4 +1,4 @@
-LZMA SDK 9.10
+LZMA SDK 9.11
 -------------
 
 LZMA SDK provides the documentation, samples, header files, libraries, 
@@ -20,6 +20,10 @@ LICENSE
 
 LZMA SDK is written and placed in the public domain by Igor Pavlov.
 
+Some code in LZMA is based on public domain code from another developers:
+  1) PPMd var.H (2001): Dmitry Shkarin
+  2) SHA-256: Wei Dai (Crypto++ library)
+
 
 LZMA SDK Contents
 -----------------
@@ -547,8 +551,8 @@ Return code:
 
 
 
-LZMA Defines
-------------
+Defines
+-------
 
 _LZMA_SIZE_OPT - Enable some optimizations in LZMA Decoder to get smaller executable code.
 
@@ -560,6 +564,9 @@ _LZMA_UINT32_IS_ULONG  - Define it if int is 16-bit on your compiler and long is
 _LZMA_NO_SYSTEM_SIZE_T  - Define it if you don't want to use size_t type.
 
 
+_7ZIP_PPMD_SUPPPORT - Define it if you don't want to support PPMD method in AMSI-C .7z decoder.
+
+
 C++ LZMA Encoder/Decoder 
 ~~~~~~~~~~~~~~~~~~~~~~~~
 C++ LZMA code use COM-like interfaces. So if you want to use it, 
diff --git a/DOC/readme.txt b/DOC/readme.txt
index 5cab8f42..407534bc 100755
--- a/DOC/readme.txt
+++ b/DOC/readme.txt
@@ -1,9 +1,9 @@
-7-Zip 9.10 Sources
+7-Zip 9.11 Sources
 ------------------
 
 7-Zip is a file archiver for Windows. 
 
-7-Zip Copyright (C) 1999-2009 Igor Pavlov.
+7-Zip Copyright (C) 1999-2010 Igor Pavlov.
 
 
 License Info