diff options
Diffstat (limited to 'newlib/libc/machine/sh')
| -rw-r--r-- | newlib/libc/machine/sh/Makefile.am | 28 | ||||
| -rw-r--r-- | newlib/libc/machine/sh/Makefile.in | 448 | ||||
| -rw-r--r-- | newlib/libc/machine/sh/aclocal.m4 | 880 | ||||
| -rw-r--r-- | newlib/libc/machine/sh/asm.h | 42 | ||||
| -rwxr-xr-x | newlib/libc/machine/sh/configure | 5495 | ||||
| -rw-r--r-- | newlib/libc/machine/sh/configure.in | 23 | ||||
| -rw-r--r-- | newlib/libc/machine/sh/memcpy.S | 395 | ||||
| -rw-r--r-- | newlib/libc/machine/sh/memset.S | 164 | ||||
| -rw-r--r-- | newlib/libc/machine/sh/setjmp.S | 191 | ||||
| -rw-r--r-- | newlib/libc/machine/sh/strcmp.S | 225 | ||||
| -rw-r--r-- | newlib/libc/machine/sh/strcpy.S | 134 | ||||
| -rw-r--r-- | newlib/libc/machine/sh/strlen.S | 87 | ||||
| -rw-r--r-- | newlib/libc/machine/sh/strncpy.S | 209 |
13 files changed, 0 insertions, 8321 deletions
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Fast SH memcpy -! -! by Toshiyasu Morita (tm@netcom.com) -! hacked by J"orn Rernnecke (joern.rennecke@superh.com) ("o for o-umlaut) -! SH5 code Copyright 2002 SuperH Ltd. -! -! Entry: ARG0: destination pointer -! ARG1: source pointer -! ARG3: byte count -! -! Exit: RESULT: destination pointer -! any other registers in the range r0-r7: trashed -! -! Notes: Usually one wants to do small reads and write a longword, but -! unfortunately it is difficult in some cases to concatanate bytes -! into a longword on the SH, so this does a longword read and small -! writes. -! -! This implementation makes two assumptions about how it is called: -! -! 1.: If the byte count is nonzero, the address of the last byte to be -! copied is unsigned greater than the address of the first byte to -! be copied. This could be easily swapped for a signed comparison, -! but the algorithm used needs some comparison. -! -! 2.: When there are two or three bytes in the last word of an 11-or-more -! bytes memory chunk to b copied, the rest of the word can be read -! without side effects. -! This could be easily changed by increasing the minumum size of -! a fast memcpy and the amount subtracted from r7 before L_2l_loop be 2, -! however, this would cost a few extra cyles on average. -! For SHmedia, the assumption is that any quadword can be read in its -! enirety if at least one byte is included in the copy. -! - -#include "asm.h" - -ENTRY(memcpy) - -#if __SHMEDIA__ - -#define LDUAQ(P,O,D0,D1) ldlo.q P,O,D0; ldhi.q P,O+7,D1 -#define STUAQ(P,O,D0,D1) stlo.q P,O,D0; sthi.q P,O+7,D1 -#define LDUAL(P,O,D0,D1) ldlo.l P,O,D0; ldhi.l P,O+3,D1 -#define STUAL(P,O,D0,D1) stlo.l P,O,D0; sthi.l P,O+3,D1 - - ld.b r3,0,r63 - pta/l Large,tr0 - movi 25,r0 - bgeu/u r4,r0,tr0 - nsb r4,r0 - shlli r0,5,r0 - movi (L1-L0+63*32 + 1) & 0xffff,r1 - sub r1, r0, r0 -L0: ptrel r0,tr0 - add r2,r4,r5 - ptabs r18,tr1 - add r3,r4,r6 - blink tr0,r63 - - .balign 8 -L1: - /* 0 byte memcpy */ - blink tr1,r63 - -L4_7: /* 4..7 byte memcpy cntd. */ - stlo.l r2, 0, r0 - or r6, r7, r6 - sthi.l r5, -1, r6 - stlo.l r5, -4, r6 - blink tr1,r63 - -L2_3: /* 2 or 3 byte memcpy cntd. */ - st.b r5,-1,r6 - blink tr1,r63 - - /* 1 byte memcpy */ - ld.b r3,0,r0 - st.b r2,0,r0 - blink tr1,r63 - -L8_15: /* 8..15 byte memcpy cntd. */ - stlo.q r2, 0, r0 - or r6, r7, r6 - sthi.q r5, -1, r6 - stlo.q r5, -8, r6 - blink tr1,r63 - - /* 2 or 3 byte memcpy */ - ld.b r3,0,r0 - ld.b r2,0,r63 - ld.b r3,1,r1 - st.b r2,0,r0 - pta/l L2_3,tr0 - ld.b r6,-1,r6 - st.b r2,1,r1 - blink tr0, r63 - - /* 4 .. 7 byte memcpy */ - LDUAL (r3, 0, r0, r1) - pta L4_7, tr0 - ldlo.l r6, -4, r7 - or r0, r1, r0 - sthi.l r2, 3, r0 - ldhi.l r6, -1, r6 - blink tr0, r63 - - /* 8 .. 15 byte memcpy */ - LDUAQ (r3, 0, r0, r1) - pta L8_15, tr0 - ldlo.q r6, -8, r7 - or r0, r1, r0 - sthi.q r2, 7, r0 - ldhi.q r6, -1, r6 - blink tr0, r63 - - /* 16 .. 24 byte memcpy */ - LDUAQ (r3, 0, r0, r1) - LDUAQ (r3, 8, r8, r9) - or r0, r1, r0 - sthi.q r2, 7, r0 - or r8, r9, r8 - sthi.q r2, 15, r8 - ldlo.q r6, -8, r7 - ldhi.q r6, -1, r6 - stlo.q r2, 8, r8 - stlo.q r2, 0, r0 - or r6, r7, r6 - sthi.q r5, -1, r6 - stlo.q r5, -8, r6 - blink tr1,r63 - -Large: - ld.b r2, 0, r63 - pta/l Loop_ua, tr1 - ori r3, -8, r7 - sub r2, r7, r22 - sub r3, r2, r6 - add r2, r4, r5 - ldlo.q r3, 0, r0 - addi r5, -16, r5 - movi 64+8, r27 // could subtract r7 from that. - stlo.q r2, 0, r0 - sthi.q r2, 7, r0 - ldx.q r22, r6, r0 - bgtu/l r27, r4, tr1 - - addi r5, -48, r27 - pta/l Loop_line, tr0 - addi r6, 64, r36 - addi r6, -24, r19 - addi r6, -16, r20 - addi r6, -8, r21 - -Loop_line: - ldx.q r22, r36, r63 - alloco r22, 32 - addi r22, 32, r22 - ldx.q r22, r19, r23 - sthi.q r22, -25, r0 - ldx.q r22, r20, r24 - ldx.q r22, r21, r25 - stlo.q r22, -32, r0 - ldx.q r22, r6, r0 - sthi.q r22, -17, r23 - sthi.q r22, -9, r24 - sthi.q r22, -1, r25 - stlo.q r22, -24, r23 - stlo.q r22, -16, r24 - stlo.q r22, -8, r25 - bgeu r27, r22, tr0 - -Loop_ua: - addi r22, 8, r22 - sthi.q r22, -1, r0 - stlo.q r22, -8, r0 - ldx.q r22, r6, r0 - bgtu/l r5, r22, tr1 - - add r3, r4, r7 - ldlo.q r7, -8, r1 - sthi.q r22, 7, r0 - ldhi.q r7, -1, r7 - ptabs r18,tr1 - stlo.q r22, 0, r0 - or r1, r7, r1 - sthi.q r5, 15, r1 - stlo.q r5, 8, r1 - blink tr1, r63 - -#else /* ! SHMEDIA, i.e. SH1 .. SH4 / SHcompact */ - -#ifdef __SH5__ -#define DST r2 -#define SRC r3 -#define COUNT r4 -#define TMP0 r5 -#define TMP1 r6 -#define RESULT r2 -#else -#define DST r4 -#define SRC r5 -#define COUNT r6 -#define TMP0 r2 -#define TMP1 r3 -#define RESULT r0 -#endif - -#ifdef __LITTLE_ENDIAN__ - ! Little endian version copies with increasing addresses. - mov DST,TMP1 ! Save return value - mov #11,r0 ! Check if small number of bytes - cmp/hs r0,COUNT - ! COUNT becomes src end address - SL(bf, L_small, add SRC,COUNT) - mov #1,r1 - tst r1,SRC ! check if source even - SL(bt, L_even, mov COUNT,r7) - mov.b @SRC+,r0 ! no, make it even. - mov.b r0,@DST - add #1,DST -L_even: tst r1,DST ! check if destination is even - add #-3,r7 - SL(bf, L_odddst, mov #2,r1) - tst r1,DST ! check if destination is 4-byte aligned - mov DST,r0 - SL(bt, L_al4dst, sub SRC,r0) - mov.w @SRC+,TMP0 - mov.w TMP0,@DST - ! add #2,DST DST is dead here. -L_al4dst: - tst r1,SRC - bt L_al4both - mov.w @SRC+,r1 - swap.w r1,r1 - add #-6,r0 - add #-6,r7 ! r7 := src end address minus 9. - .align 2 -L_2l_loop: - mov.l @SRC+,TMP0 ! Read & write two longwords per iteration - xtrct TMP0,r1 - mov.l r1,@(r0,SRC) - cmp/hs r7,SRC - mov.l @SRC+,r1 - xtrct r1,TMP0 - mov.l TMP0,@(r0,SRC) - bf L_2l_loop - add #-2,SRC - bra L_cleanup - add #5,r0 -L_al4both: - add #-4,r0 - .align 2 -L_al4both_loop: - mov.l @SRC+,DST ! Read longword, write longword per iteration - cmp/hs r7,SRC - SL(bf, L_al4both_loop, mov.l DST,@(r0,SRC)) - - bra L_cleanup - add #3,r0 - -L_odddst: - tst r1,SRC - SL(bt, L_al4src, add #-1,DST) - mov.w @SRC+,r0 - mov.b r0,@(1,DST) - shlr8 r0 - mov.b r0,@(2,DST) - add #2,DST -L_al4src: - .align 2 -L_odd_loop: - mov.l @SRC+,r0 ! Read longword, write byte, word, byte per iteration - cmp/hs r7,SRC - mov.b r0,@(1,DST) - shlr8 r0 - mov.w r0,@(2,DST) - shlr16 r0 - mov.b r0,@(4,DST) - SL(bf, L_odd_loop, add #4,DST) - .align 2 ! avoid nop in more frequently executed code. -L_cleanup2: - mov DST,r0 - sub SRC,r0 -L_cleanup: - cmp/eq COUNT,SRC - bt L_ready - .align 2 -L_cleanup_loop: - mov.b @SRC+,r1 - cmp/eq COUNT,SRC - mov.b r1,@(r0,SRC) - bf L_cleanup_loop -L_ready: - rts - mov TMP1,RESULT -L_small: - bra L_cleanup2 - add #-1,DST -#else /* ! __LITTLE_ENDIAN__ */ - ! Big endian version copies with decreasing addresses. - mov DST,r0 - add COUNT,r0 - sub DST,SRC - mov #11,r1 - cmp/hs r1,COUNT - SL(bf, L_small, add #-1,SRC) - mov SRC,TMP1 - add r0,TMP1 - shlr TMP1 - SL(bt, L_even, - mov DST,r7) - mov.b @(r0,SRC),TMP0 - add #-1,TMP1 - mov.b TMP0,@-r0 -L_even: - tst #1,r0 - add #-1,SRC - SL(bf, L_odddst, add #8,r7) - tst #2,r0 - bt L_al4dst - add #-1,TMP1 - mov.w @(r0,SRC),r1 - mov.w r1,@-r0 -L_al4dst: - shlr TMP1 - bt L_al4both - mov.w @(r0,SRC),r1 - swap.w r1,r1 - add #4,r7 - add #-4,SRC - .align 2 -L_2l_loop: - mov.l @(r0,SRC),TMP0 - xtrct TMP0,r1 - mov.l r1,@-r0 - cmp/hs r7,r0 - mov.l @(r0,SRC),r1 - xtrct r1,TMP0 - mov.l TMP0,@-r0 - bt L_2l_loop - bra L_cleanup - add #5,SRC - - nop ! avoid nop in executed code. -L_al4both: - add #-2,SRC - .align 2 -L_al4both_loop: - mov.l @(r0,SRC),r1 - cmp/hs r7,r0 - SL(bt, L_al4both_loop, - mov.l r1,@-r0) - bra L_cleanup - add #3,SRC - - nop ! avoid nop in executed code. -L_odddst: - shlr TMP1 - bt L_al4src - mov.w @(r0,SRC),r1 - mov.b r1,@-r0 - shlr8 r1 - mov.b r1,@-r0 -L_al4src: - add #-2,SRC - .align 2 -L_odd_loop: - mov.l @(r0,SRC),TMP0 - cmp/hs r7,r0 - mov.b TMP0,@-r0 - shlr8 TMP0 - mov.w TMP0,@-r0 - shlr16 TMP0 - mov.b TMP0,@-r0 - bt L_odd_loop - - add #3,SRC -L_cleanup: -L_small: - cmp/eq DST,r0 - bt L_ready - add #1,DST - .align 2 -L_cleanup_loop: - mov.b @(r0,SRC),TMP0 - cmp/eq DST,r0 - mov.b TMP0,@-r0 - bf L_cleanup_loop -L_ready: - rts - mov r0,RESULT -#endif /* ! __LITTLE_ENDIAN__ */ -#endif /* ! SHMEDIA */ diff --git a/newlib/libc/machine/sh/memset.S b/newlib/libc/machine/sh/memset.S deleted file mode 100644 index 2b45aff36..000000000 --- a/newlib/libc/machine/sh/memset.S +++ /dev/null @@ -1,164 +0,0 @@ -! -! Fast SH memset -! -! by Toshiyasu Morita (tm@netcom.com) -! -! SH5 code by J"orn Rennecke (joern.rennecke@superh.com) -! Copyright 2002 SuperH Ltd. -! - -#include "asm.h" - -ENTRY(memset) -#if __SHMEDIA__ - pta/l multiquad, tr0 - ptabs r18, tr2 - - andi r2, -8, r25 - add r2, r4, r5 - addi r5, -1, r20 // calculate end address. - andi r20, -8, r20 - cmveq r4, r25, r20 - bne/u r25, r20, tr0 // multiquad - -! This sequence could clobber volatile objects that are in the same -! quadword as a very short char array. -! ldlo.q r2, 0, r7 -! shlli r4, 2, r4 -! movi -1, r8 -! SHHI r8, r4, r8 -! SHHI r8, r4, r8 -! mcmv r7, r8, r3 -! stlo.q r2, 0, r3 - - pta/l setlongs, tr0 - movi 4, r8 - bgeu/u r4, r8, tr0 - pta/l endset, tr0 - beqi/u r4, 0, tr0 - st.b r2, 0, r3 - beqi/u r4, 1, tr0 - nop - st.b r2, 1, r3 - beqi/l r4, 2, tr0 - st.b r2,2,r3 -endset: blink tr2, r63 -setlongs: - mshflo.b r3, r3, r3 - mperm.w r3, r63, r3 // Fill pattern now in every byte of r3 - stlo.l r2, 0, r3 - nop - nop - sthi.l r5, -1, r3 - blink tr2, r63 - -multiquad: - mshflo.b r3, r3, r3 - mperm.w r3, r63, r3 // Fill pattern now in every byte of r3 - pta/l lastquad, tr0 - stlo.q r2, 0, r3 - sub r20, r25, r24 - movi 64, r9 - beqi/u r24, 8, tr0 // lastquad - pta/l loop, tr1 - addi r20, -7*8, r8 // loop end address; This might overflow, so we need - // to use a different test before we start the loop - bgeu/u r24, r9, tr1// loop - st.q r25, 8, r3 - shlri r24, 4, r24 - st.q r20, -8, r3 - beqi/u r24, 1, tr0 // lastquad - st.q r25, 16, r3 - st.q r20, -16, r3 - beqi/u r24, 2, tr0 // lastquad - st.q r25, 24, r3 - st.q r20, -24, r3 -lastquad: - sthi.q r5, -1, r3 - blink tr2,r63 - -loop: - alloco r25, 32 - st.q r25, 8, r3 - st.q r25, 16, r3 - st.q r25, 24, r3 - st.q r25, 32, r3 - addi r25, 32, r25 - bgeu/l r8, r25, tr1 // loop - - st.q r20, -40, r3 - st.q r20, -32, r3 - st.q r20, -24, r3 - st.q r20, -16, r3 - st.q r20, -8, r3 - sthi.q r5, -1, r3 - blink tr2,r63 -#else /* ! SHMEDIA, i.e. SH1 .. SH4 / SHcompact */ -! Entry: r4: destination pointer -! r5: fill value -! r6: byte count -! -! Exit: r0-r3: trashed -! - -! This assumes that the first four bytes of the address space (0..3) are -! reserved - usually by the linker script. Otherwise, we would had to check -! for the case of objects of the size 12..15 at address 0..3 . - -#ifdef __SH5__ -#define DST r2 -#define VAL r3 -#define CNT r4 -#define TMP r5 -#else -#define DST r4 -#define VAL r5 -#define CNT r6 -#define TMP r2 -#endif - - mov #12,r0 ! Check for small number of bytes - cmp/gt CNT,r0 - mov DST,r0 - SL(bt, L_store_byte_loop_check0, add DST,CNT) - - tst #3,r0 ! Align destination - SL(bt, L_dup_bytes, extu.b r5,r5) - .balignw 4,0x0009 -L_align_loop: - mov.b VAL,@r0 - add #1,r0 - tst #3,r0 - bf L_align_loop - -L_dup_bytes: - swap.b VAL,TMP ! Duplicate bytes across longword - or TMP,VAL - swap.w VAL,TMP - or TMP,VAL - - add #-16,CNT - - .balignw 4,0x0009 -L_store_long_loop: - mov.l VAL,@r0 ! Store double longs to memory - cmp/hs CNT,r0 - mov.l VAL,@(4,r0) - SL(bf, L_store_long_loop, add #8,r0) - - add #16,CNT - -L_store_byte_loop_check0: - cmp/eq CNT,r0 - bt L_exit - .balignw 4,0x0009 -L_store_byte_loop: - mov.b VAL,@r0 ! Store bytes to memory - add #1,r0 - cmp/eq CNT,r0 - bf L_store_byte_loop - -L_exit: - rts - mov r4,r0 -#endif /* ! SHMEDIA */ diff --git a/newlib/libc/machine/sh/setjmp.S b/newlib/libc/machine/sh/setjmp.S deleted file mode 100644 index 520218f23..000000000 --- a/newlib/libc/machine/sh/setjmp.S +++ /dev/null @@ -1,191 +0,0 @@ -/* We want to pretend we're in SHmedia mode, even when assembling for - SHcompact. */ -#if __SH5__ == 32 && ! __SHMEDIA__ -# undef __SHMEDIA__ -# define __SHMEDIA__ 1 -#endif - -#if __SHMEDIA__ - .mode SHmedia -#endif - -#include "asm.h" - -ENTRY(setjmp) -#if __SH5__ - ptabs r18, tr0 - gettr tr5, r5 - gettr tr6, r6 - gettr tr7, r7 - st.q r2, 0*8, r18 - st.q r2, 1*8, r10 - st.q r2, 2*8, r11 - st.q r2, 3*8, r12 - st.q r2, 4*8, r13 - st.q r2, 5*8, r14 - st.q r2, 6*8, r15 - st.q r2, 7*8, r28 - st.q r2, 8*8, r29 - st.q r2, 9*8, r30 - st.q r2, 10*8, r31 - st.q r2, 11*8, r32 - st.q r2, 12*8, r33 - st.q r2, 13*8, r34 - st.q r2, 14*8, r35 - st.q r2, 15*8, r44 - st.q r2, 16*8, r45 - st.q r2, 17*8, r46 - st.q r2, 18*8, r47 - st.q r2, 19*8, r48 - st.q r2, 20*8, r49 - st.q r2, 21*8, r50 - st.q r2, 22*8, r51 - st.q r2, 23*8, r52 - st.q r2, 24*8, r53 - st.q r2, 25*8, r54 - st.q r2, 26*8, r55 - st.q r2, 27*8, r56 - st.q r2, 28*8, r57 - st.q r2, 29*8, r58 - st.q r2, 30*8, r59 - st.q r2, 31*8, r5 - st.q r2, 32*8, r6 - st.q r2, 33*8, r7 -#if ! __SH4_NOFPU__ - fst.d r2, 34*8, dr12 - fst.d r2, 35*8, dr14 - fst.d r2, 36*8, dr36 - fst.d r2, 37*8, dr38 - fst.d r2, 38*8, dr40 - fst.d r2, 39*8, dr42 - fst.d r2, 40*8, dr44 - fst.d r2, 41*8, dr46 - fst.d r2, 42*8, dr48 - fst.d r2, 43*8, dr50 - fst.d r2, 44*8, dr52 - fst.d r2, 45*8, dr54 - fst.d r2, 46*8, dr56 - fst.d r2, 47*8, dr58 - fst.d r2, 48*8, dr60 - fst.d r2, 49*8, dr62 -#endif - movi 0, r2 - blink tr0, r63 -#else -#if defined (__SH2E__) || defined (__SH3E__) || defined(__SH4_SINGLE__) || defined(__SH4__) || defined(__SH4_SINGLE_ONLY__) - add #(13*4),r4 -#else - add #(9*4),r4 -#endif - - sts.l pr,@-r4 - -#if defined (__SH2E__) || defined (__SH3E__) || defined(__SH4_SINGLE__) || defined(__SH4__) || defined(__SH4_SINGLE_ONLY__) - fmov.s fr15,@-r4 ! call saved floating point registers - fmov.s fr14,@-r4 - fmov.s fr13,@-r4 - fmov.s fr12,@-r4 -#endif - - mov.l r15,@-r4 ! call saved integer registers - mov.l r14,@-r4 - mov.l r13,@-r4 - mov.l r12,@-r4 - - mov.l r11,@-r4 - mov.l r10,@-r4 - mov.l r9,@-r4 - mov.l r8,@-r4 - - rts - mov #0,r0 -#endif /* __SH5__ */ - -ENTRY(longjmp) -#if __SH5__ - ld.q r2, 0*8, r18 - ptabs r18, tr0 - ld.q r2, 1*8, r10 - ld.q r2, 2*8, r11 - ld.q r2, 3*8, r12 - ld.q r2, 4*8, r13 - ld.q r2, 5*8, r14 - ld.q r2, 6*8, r15 - ld.q r2, 7*8, r28 - ld.q r2, 8*8, r29 - ld.q r2, 9*8, r30 - ld.q r2, 10*8, r31 - ld.q r2, 11*8, r32 - ld.q r2, 12*8, r33 - ld.q r2, 13*8, r34 - ld.q r2, 14*8, r35 - ld.q r2, 15*8, r44 - ld.q r2, 16*8, r45 - ld.q r2, 17*8, r46 - ld.q r2, 18*8, r47 - ld.q r2, 19*8, r48 - ld.q r2, 20*8, r49 - ld.q r2, 21*8, r50 - ld.q r2, 22*8, r51 - ld.q r2, 23*8, r52 - ld.q r2, 24*8, r53 - ld.q r2, 25*8, r54 - ld.q r2, 26*8, r55 - ld.q r2, 27*8, r56 - ld.q r2, 28*8, r57 - ld.q r2, 29*8, r58 - ld.q r2, 30*8, r59 - ld.q r2, 31*8, r5 - ld.q r2, 32*8, r6 - ld.q r2, 33*8, r7 - ptabs r5, tr5 - ptabs r6, tr6 - ptabs r7, tr7 -#if ! __SH4_NOFPU__ - fld.d r2, 34*8, dr12 - fld.d r2, 35*8, dr14 - fld.d r2, 36*8, dr36 - fld.d r2, 37*8, dr38 - fld.d r2, 38*8, dr40 - fld.d r2, 39*8, dr42 - fld.d r2, 40*8, dr44 - fld.d r2, 41*8, dr46 - fld.d r2, 42*8, dr48 - fld.d r2, 43*8, dr50 - fld.d r2, 44*8, dr52 - fld.d r2, 45*8, dr54 - fld.d r2, 46*8, dr56 - fld.d r2, 47*8, dr58 - fld.d r2, 48*8, dr60 - fld.d r2, 49*8, dr62 -#endif - movi 1, r2 - cmvne r3, r3, r2 - blink tr0, r63 -#else - mov.l @r4+,r8 - mov.l @r4+,r9 - mov.l @r4+,r10 - mov.l @r4+,r11 - - mov.l @r4+,r12 - mov.l @r4+,r13 - mov.l @r4+,r14 - mov.l @r4+,r15 - -#if defined (__SH2E__) || defined (__SH3E__) || defined(__SH4_SINGLE__) || defined(__SH4__) || defined(__SH4_SINGLE_ONLY__) - fmov.s @r4+,fr12 ! call saved floating point registers - fmov.s @r4+,fr13 - fmov.s @r4+,fr14 - fmov.s @r4+,fr15 -#endif - - lds.l @r4+,pr - - mov r5,r0 - tst r0,r0 - bf retr4 - movt r0 -retr4: rts - nop -#endif /* __SH5__ */ diff --git a/newlib/libc/machine/sh/strcmp.S b/newlib/libc/machine/sh/strcmp.S deleted file mode 100644 index 8dcc20b0c..000000000 --- a/newlib/libc/machine/sh/strcmp.S +++ /dev/null @@ -1,225 +0,0 @@ -! SH5 code Copyright 2002 SuperH Ltd. - -#include "asm.h" - -ENTRY(strcmp) - -#if __SHMEDIA__ - ld.ub r2,0,r4 - pt/l quickret0,tr0 - ld.ub r3,0,r5 - ptabs r18,tr2 - beqi/u r4,0,tr0 - ld.ub r2,1,r6 - bne/u r4,r5,tr0 - pt/l quickret1,tr1 - ld.ub r3,1,r7 - beqi/u r6,0,tr1 - ld.ub r2,2,r4 - bne/u r6,r7,tr1 - ld.ub r3,2,r5 - beqi/u r4,0,tr0 - ld.ub r2,3,r6 - bne/u r4,r5,tr0 - ld.ub r3,3,r7 - beqi/u r6,0,tr1 - ld.ub r2,4,r4 - bne/u r6,r7,tr1 - ld.ub r3,4,r5 - beqi/u r4,0,tr0 - ld.ub r2,5,r6 - bne/u r4,r5,tr0 - ld.ub r3,5,r7 - beqi/u r6,0,tr1 - ld.ub r2,6,r4 - bne/u r6,r7,tr1 - ld.ub r3,6,r5 - beqi/u r4,0,tr0 - ld.ub r2,7,r6 - bne/u r4,r5,tr0 - ld.ub r3,7,r7 - beqi/u r6,0,tr1 - sub r3,r2,r3 - bne/u r6,r7,tr1 - - andi r2,-8,r2 - add r3,r2,r3 - ldlo.q r3,8,r23 - pt r23_zero,tr0 - shlli r3,3,r22 - sub r63,r22,r20 - movi 0x101,r6 - mperm.w r6,r63,r6 - SHLO r6,r22,r7 - msubs.ub r7,r23,r8 - pt loop,tr1 - bnei/u r8,0,tr0 // r23_zero - pt found_zero,tr0 - addi r3,15,r3 - andi r3,-8,r3 - sub r3,r2,r3 - bne/l r7,r6,tr1 // loop - /* The strings are aligned to each other. */ - /* It is possible to have a loop with six cycles / iteration - by re-ordering the exit conditions, but then it needs extra - time and/or code to sort out the r4 != r5 case. */ - pt al_loop,tr1 - pt al_found_zero,tr0 -al_loop: - ld.q r2,8,r4 - ldx.q r2,r3,r5 - addi r2,8,r2 - mcmpeq.b r63,r4,r8 - pt cmp_quad,tr3 - bnei/u r8,0,tr0 // al_found_zero - beq/l r4,r5,tr1 // al_loop - blink tr3,r63 // cmp_quad - - .balign 8 -quickret0: - sub r4,r5,r2 - blink tr2,r63 -quickret1: - sub r6,r7,r2 - blink tr2,r63 - -loop: - ld.q r2,8,r4 - ldx.q r2,r3,r19 - addi r2,8,r2 - msubs.ub r6,r4,r8 - mcmpeq.b r63,r19,r9 - SHHI r19,r20,r21 - or r21,r23,r5 - SHLO r19,r22,r23 - bne/u r8,r9,tr0 // found_zero - beq/l r4,r5,tr1 // loop -cmp_quad: -#ifdef __LITTLE_ENDIAN__ - byterev r4,r4 - byterev r5,r5 -#endif - cmpgtu r4,r5,r6 - cmpgtu r5,r4,r7 - sub r6,r7,r2 - blink tr2,r63 -found_zero: - pt zero_now,tr0 - pt cmp_quad,tr1 - SHHI r9,r20,r7 - bne/u r8,r7,tr0 // zero_now - bne/u r4,r5,tr1 // cmp_quad - SHLO r9,r22,r8 -r23_zero: - ld.q r2,8,r4 - add r23,r63,r5 -zero_now: -al_found_zero: -/* We konw that one of the values has at lest one zero, and r8 holds - an 0x01 or 0xff mask for every zero found in one of the operands. - If both operands have the first zero in the same place, this mask - allows us to truncate the comparison to the valid bytes in the - strings. If the first zero is in different places, it doesn't - matter if some invalid bytes are included, since the comparison - of the zero with the non-zero will determine the outcome. */ -#ifdef __LITTLE_ENDIAN__ - shlli r8,8,r8 - addi r8,-1,r9 - andc r9,r8,r8 - and r8,r4,r4 - and r8,r5,r5 -#else - shlri r8,1,r8 - nsb r8,r8 - addi r8,8,r8 - andi r8,56,r8 - sub r63,r8,r8 - shlrd r4,r8,r4 - shlrd r5,r8,r5 -#endif -#ifdef __LITTLE_ENDIAN__ - byterev r4,r4 - byterev r5,r5 -#endif - cmpgtu r4,r5,r6 - cmpgtu r5,r4,r7 - sub r6,r7,r2 - blink tr2,r63 - -#else /* ! __SHMEDIA__, i.e. SH 1..4 / SHcompact */ - -#ifdef __SH5__ -#define STR1 r2 -#define STR2 r3 -#define RESULT r2 -#define TMP r4 -#else -! Entry: r4: string1 -! r5: string2 -! Exit: r0: result -! r1-r2,r4-r5: clobbered -#define STR1 r4 -#define STR2 r5 -#define RESULT r0 -#define TMP r2 -#endif /* __SH5__ */ - - mov STR1,r0 - or STR2,r0 - tst #3,r0 - bf L_setup_char_loop - mov #0,r0 -#ifdef DELAYED_BRANCHES - mov.l @STR1+,r1 - .align 2 -Longword_loop: - mov.l @STR2+,TMP - cmp/str r0,r1 - bt Longword_loop_end - cmp/eq r1,TMP - bt.s Longword_loop - mov.l @STR1+,r1 - add #-4, STR1 -Longword_loop_end: - add #-4, STR1 - add #-4, STR2 -L_setup_char_loop: - mov.b @STR1+,r0 - .align 2 -L_char_loop: - mov.b @STR2+,r1 - tst r0,r0 - bt L_return - cmp/eq r0,r1 - bt.s L_char_loop - mov.b @STR1+,r0 - add #-2,STR1 - mov.b @STR1,r0 -#else /* ! DELAYED_BRANCHES */ - .align 2 -Longword_loop: - mov.l @r4+,r1 - mov.l @r5+,r2 - cmp/str r0,r1 - bt Longword_loop_end - cmp/eq r1,r2 - bt Longword_loop -Longword_loop_end: - add #-4, r4 - add #-4, r5 - .align 2 -L_setup_char_loop: -L_char_loop: - mov.b @r4+,r0 - mov.b @r5+,r1 - tst r0,r0 - bt L_return - cmp/eq r0,r1 - bt L_char_loop -#endif -L_return: - extu.b r0,RESULT - extu.b r1,r1 - rts - sub r1,RESULT -#endif /* ! __SHMEDIA__ */ diff --git a/newlib/libc/machine/sh/strcpy.S b/newlib/libc/machine/sh/strcpy.S deleted file mode 100644 index da951cd03..000000000 --- a/newlib/libc/machine/sh/strcpy.S +++ /dev/null @@ -1,134 +0,0 @@ -! Entry: arg0: destination -! arg1: source -! Exit: result: destination -! -! SH5 code Copyright 2002 SuperH Ltd. - -#include "asm.h" - -ENTRY(strcpy) - -#if __SHMEDIA__ - - pta/l shortstring,tr1 - ldlo.q r3,0,r4 - ptabs r18,tr4 - shlli r3,3,r7 - addi r2, 8, r0 - mcmpeq.b r4,r63,r6 - SHHI r6,r7,r6 - bnei/u r6,0,tr1 // shortstring - pta/l no_lddst, tr2 - ori r3,-8,r23 - sub r2, r23, r0 - sub r3, r2, r21 - addi r21, 8, r20 - ldx.q r0, r21, r5 - pta/l loop, tr0 - ori r2,-8,r22 - mcmpeq.b r5, r63, r6 - bgt/u r22, r23, tr2 // no_lddst - - // r22 < r23 : Need to do a load from the destination. - // r22 == r23 : Doesn't actually need to load from destination, - // but still can be handled here. - ldlo.q r2, 0, r9 - movi -1, r8 - SHLO r8, r7, r8 - mcmv r4, r8, r9 - stlo.q r2, 0, r9 - beqi/l r6, 0, tr0 // loop - - add r5, r63, r4 - addi r0, 8, r0 - blink tr1, r63 // shortstring -no_lddst: - // r22 > r23: note that for r22 == r23 the sthi.q would clobber - // bytes before the destination region. - stlo.q r2, 0, r4 - SHHI r4, r7, r4 - sthi.q r0, -1, r4 - beqi/l r6, 0, tr0 // loop - - add r5, r63, r4 - addi r0, 8, r0 -shortstring: -#ifndef __LITTLE_ENDIAN__ - pta/l shortstring2,tr1 - byterev r4,r4 -#endif -shortstring2: - st.b r0,-8,r4 - andi r4,0xff,r5 - shlri r4,8,r4 - addi r0,1,r0 - bnei/l r5,0,tr1 - blink tr4,r63 // return - - .balign 8 -loop: - stlo.q r0, 0, r5 - ldx.q r0, r20, r4 - addi r0, 16, r0 - sthi.q r0, -9, r5 - mcmpeq.b r4, r63, r6 - bnei/u r6, 0, tr1 // shortstring - ldx.q r0, r21, r5 - stlo.q r0, -8, r4 - sthi.q r0, -1, r4 - mcmpeq.b r5, r63, r6 - beqi/l r6, 0, tr0 // loop - - add r5, r63, r4 - addi r0, 8, r0 - blink tr1, r63 // shortstring - -#else /* ! __SHMEDIA__, i.e. SH 1..4 / SHcompact */ - -#ifdef __SH5__ -#define DST r2 -#define SRC r3 -#define TMP r4 -#define RESULT R2 -! r0,r1,r3,r4: clobbered -#else -#define DST r4 -#define SRC r5 -#define TMP r2 -#define RESULT r0 -! r1-r2,r5: clobbered -#endif - mov DST,r0 - or SRC,r0 - tst #3,r0 - SL(bf, L_setup_char_loop, mov DST,r0) - mov.l @SRC+,r1 - mov #0,TMP - cmp/str TMP,r1 - SL(bt, Longword_loop_end, sub SRC,r0) - .align 2 -Longword_loop: - mov.l r1,@(r0,SRC) - mov.l @SRC+,r1 - cmp/str TMP,r1 - bt Longword_loop_end - mov.l r1,@(r0,SRC) - mov.l @SRC+,r1 - cmp/str TMP,r1 - bf Longword_loop -Longword_loop_end: - add #-4,SRC - add #3,r0 - .align 2 -L_char_loop: - mov.b @SRC+,r1 -L_char_loop_start: - tst r1,r1 - SL(bf, L_char_loop, mov.b r1,@(r0,SRC)) - rts - mov DST,RESULT -L_setup_char_loop: - mov.b @SRC+,r1 - bra L_char_loop_start - sub SRC,r0 -#endif /* ! __SHMEDIA__ */ diff --git a/newlib/libc/machine/sh/strlen.S b/newlib/libc/machine/sh/strlen.S deleted file mode 100644 index b55b86b79..000000000 --- a/newlib/libc/machine/sh/strlen.S +++ /dev/null @@ -1,87 +0,0 @@ -! Entry: arg0: string start address -! Exit: result: length -! -! Copyright 2002 SuperH Ltd. - -#include "asm.h" - -ENTRY(strlen) - -#if __SHMEDIA__ - - ldlo.q r2,0,r3 - ptabs/l r18,tr0 - pta/l loop,tr1 - andi r2,-8,r0 - shlli r2,3,r1 - mcmpeq.b r3,r63,r3 - SHHI r3,r1,r4 - beqi/u r4,0,tr1 // loop -#ifdef __LITTLE_ENDIAN__ - movi -1,r2 - addi r3,-1,r4 - msad.ubq r3,r4,r2 -#else - shlri r3,1,r3 - nsb r3,r3 - shlri r3,3,r2 -#endif - blink tr0,r63 - -loop: - ldlo.q r0,8,r3 - addi r0,8,r0 - ldlo.q r0,8,r63 - mcmpeq.b r3,r63,r3 - beqi/l r3,0,tr1 // loop - sub r0,r2,r2 -#ifdef __LITTLE_ENDIAN__ - addi r3,-1,r4 - addi r2,-1,r2 - msad.ubq r3,r4,r2 -#else - shlri r3,1,r3 - nsb r3,r3 - shlri r3,3,r3 - add r2,r3,r2 -#endif - blink tr0,r63 - -#else /* ! __SHMEDIA__, i.e. SH 1..4 / SHcompact */ - -#ifdef __SH5__ -#define STR_INIT r2 -#define STR_ORIG r0 -#define STR_COPY STR_ORIG -#define MASK r1 -#define TMP r3 -#define RESULT r2 -! r0,r1,r3: clobbered -#else -#define STR_INIT r4 -#define STR_ORIG STR_INIT -#define STR_COPY STR -#define MASK r1 -#define TMP r3 -#define RESULT r0 -! r1,r3: clobbered -#endif -#define STR RESULT - - mov #3,MASK - and STR_INIT,MASK - tst MASK,MASK - SL(bf, L_char_loop, mov STR_INIT, STR_COPY) -L_word_loop: - mov.l @STR+,TMP - cmp/str MASK,TMP - bf L_word_loop - add #-4,STR -L_char_loop: - mov.b @STR+,TMP - tst TMP,TMP - bf L_char_loop - add #-1,STR - rts - sub STR_ORIG,STR -#endif /* ! __SHMEDIA__ */ diff --git a/newlib/libc/machine/sh/strncpy.S b/newlib/libc/machine/sh/strncpy.S deleted file mode 100644 index c22ae661f..000000000 --- a/newlib/libc/machine/sh/strncpy.S +++ /dev/null @@ -1,209 +0,0 @@ -/* Copyright 2003 SuperH Ltd. */ - -#include "asm.h" - -#ifdef __SH5__ -#if __SHMEDIA__ - -#ifdef __LITTLE_ENDIAN__ -#define ZPAD_MASK(src, dst) addi src, -1, dst -#else -#define ZPAD_MASK(src, dst) \ - byterev src, dst; addi dst, -1, dst; byterev dst, dst -#endif - - -/* We assume that the destination is not in the first 16 bytes of memory. - A typical linker script will put the text section first, and as - this code is longer that 16 bytes, you have to get out of your way - to put data there. */ -ENTRY(strncpy) - pt L_small, tr2 - ldlo.q r3, 0, r0 - shlli r3, 3, r19 - mcmpeq.b r0, r63, r1 - SHHI r1, r19, r7 - add r2, r4, r20 - addi r20, -8, r5 - /* If the size is greater than 8, we know we can read beyond the first - (possibly partial) quadword, and write out a full first and last - (possibly unaligned and/or overlapping) quadword. */ - bge/u r2, r5, tr2 // L_small - pt L_found0, tr0 - addi r2, 8, r22 - bnei/u r7, 0, tr0 // L_found0 - ori r3, -8, r38 - pt L_end_early, tr1 - sub r2, r38, r22 - stlo.q r2, 0, r0 - sthi.q r2, 7, r0 - sub r3, r2, r6 - ldx.q r22, r6, r0 - /* Before each iteration, check that we can store in full the next quad we - are about to fetch. */ - addi r5, -8, r36 - bgtu/u r22, r36, tr1 // L_end_early - pt L_scan0, tr1 -L_scan0: - addi r22, 8, r22 - mcmpeq.b r0, r63, r1 - stlo.q r22, -8, r0 - bnei/u r1, 0, tr0 // L_found0 - sthi.q r22, -1, r0 - ldx.q r22, r6, r0 - bgeu/l r36, r22, tr1 // L_scan0 -L_end: - // At end; we might re-read a few bytes when we fetch the last quad. - // branch mispredict, so load is ready now. - mcmpeq.b r0, r63, r1 - addi r22, 8, r22 - bnei/u r1, 0, tr0 // L_found0 - add r3, r4, r7 - ldlo.q r7, -8, r1 - ldhi.q r7, -1, r7 - ptabs r18, tr0 - stlo.q r22, -8, r0 - or r1, r7, r1 - mcmpeq.b r1, r63, r7 - sthi.q r22, -1, r0 - ZPAD_MASK (r7, r7) - and r1, r7, r1 // mask out non-zero bytes after first zero byte - stlo.q r20, -8, r1 - sthi.q r20, -1, r1 - blink tr0, r63 - -L_end_early: - /* Check if we can store the current quad in full. */ - pt L_end, tr1 - add r3, r4, r7 - bgtu/u r5, r22, tr1 // L_end // Not really unlikely, but gap is short. - /* If not, that means we can just proceed to process the last quad. - Two pipeline stalls are unavoidable, as we don't have enough ILP. */ - ldlo.q r7, -8, r1 - ldhi.q r7, -1, r7 - ptabs r18, tr0 - or r1, r7, r1 - mcmpeq.b r1, r63, r7 - ZPAD_MASK (r7, r7) - and r1, r7, r1 // mask out non-zero bytes after first zero byte - stlo.q r20, -8, r1 - sthi.q r20, -1, r1 - blink tr0, r63 - -L_found0: - // r0: string to store, not yet zero-padding normalized. - // r1: result of mcmpeq.b r0, r63, r1. - // r22: store address plus 8. I.e. address where zero padding beyond the - // string in r0 goes. - // r20: store end address. - // r5: store end address minus 8. - pt L_write0_multiquad, tr0 - ZPAD_MASK (r1, r1) - and r0, r1, r0 // mask out non-zero bytes after first zero byte - stlo.q r22, -8, r0 - sthi.q r22, -1, r0 - andi r22, -8, r1 // Check if zeros to write fit in one quad word. - bgtu/l r5, r1, tr0 // L_write0_multiquad - ptabs r18, tr1 - sub r20, r22, r1 - shlli r1, 2, r1 // Do shift in two steps so that 64 bit case is - SHLO r0, r1, r0 // handled correctly. - SHLO r0, r1, r0 - sthi.q r20, -1, r0 - blink tr1, r63 - -L_write0_multiquad: - pt L_write0_loop, tr0 - ptabs r18, tr1 - stlo.q r22, 0, r63 - sthi.q r20, -1, r63 - addi r1, 8, r1 - bgeu/l r5, r1, tr0 // L_write0_loop - blink tr1, r63 - -L_write0_loop: - st.q r1, 0 ,r63 - addi r1, 8, r1 - bgeu/l r5, r1, tr0 // L_write0_loop - blink tr1, r63 - -L_small: - // r0: string to store, not yet zero-padding normalized. - // r1: result of mcmpeq.b r0, r63, r1. - // r7: nonzero indicates relevant zero found r0. - // r2: store address. - // r3: read address. - // r4: size, max 8 - // r20: store end address. - // r5: store end address minus 8. - pt L_nohi, tr0 - pt L_small_storelong, tr1 - ptabs r18, tr2 - sub r63, r4, r23 - bnei/u r7, 0, tr0 // L_nohi - ori r3, -8, r7 - bge/l r23, r7, tr0 // L_nohi - ldhi.q r3, 7, r1 - or r0, r1, r0 - mcmpeq.b r0, r63, r1 -L_nohi: - ZPAD_MASK (r1, r1) - and r0, r1, r0 - movi 4, r19 - bge/u r4, r19, tr1 // L_small_storelong - - pt L_small_end, tr0 -#ifndef __LITTLE_ENDIAN__ - byterev r0, r0 -#endif - beqi/u r4, 0, tr0 // L_small_end - st.b r2, 0, r0 - beqi/u r4, 1, tr0 // L_small_end - shlri r0, 8, r0 - st.b r2, 1, r0 - beqi/u r4, 2, tr0 // L_small_end - shlri r0, 8, r0 - st.b r2, 2, r0 -L_small_end: - blink tr2, r63 - -L_small_storelong: - shlli r23, 3, r7 - SHHI r0, r7, r1 -#ifdef __LITTLE_ENDIAN__ - shlri r1, 32, r1 -#else - shlri r0, 32, r0 -#endif - stlo.l r2, 0, r0 - sthi.l r2, 3, r0 - stlo.l r20, -4, r1 - sthi.l r20, -1, r1 - blink tr2, r63 - -#else /* SHcompact */ - -/* This code is optimized for size. Instruction selection is SH5 specific. - SH4 should use a different version. */ -ENTRY(strncpy) - mov #0, r6 - cmp/eq r4, r6 - bt return - mov r2, r5 - add #-1, r5 - add r5, r4 -loop: - bt/s found0 - add #1, r5 - mov.b @r3+, r1 -found0: - cmp/eq r5,r4 - mov.b r1, @r5 - bf/s loop - cmp/eq r1, r6 -return: - rts - nop - -#endif /* SHcompact */ -#endif /* __SH5__ */ |