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/*
* opcodes.c: CIL instruction information
*
* Author:
* Paolo Molaro (lupus@ximian.com)
*
* (C) 2002 Ximian, Inc.
*/
#include <mono/metadata/opcodes.h>
#include <stddef.h> /* for NULL */
#include <config.h>
#define MONO_PREFIX1_OFFSET MONO_CEE_ARGLIST
#define MONO_CUSTOM_PREFIX_OFFSET MONO_CEE_MONO_ICALL
#define OPDEF(a,b,c,d,e,f,g,h,i,j) \
{ Mono ## e, MONO_FLOW_ ## j, MONO_ ## a },
const MonoOpcode
mono_opcodes [MONO_CEE_LAST + 1] = {
#include "mono/cil/opcode.def"
{0}
};
#undef OPDEF
#ifdef HAVE_ARRAY_ELEM_INIT
#define MSGSTRFIELD(line) MSGSTRFIELD1(line)
#define MSGSTRFIELD1(line) str##line
static const struct msgstr_t {
#define OPDEF(a,b,c,d,e,f,g,h,i,j) char MSGSTRFIELD(__LINE__) [sizeof (b)];
#include "mono/cil/opcode.def"
#undef OPDEF
} opstr = {
#define OPDEF(a,b,c,d,e,f,g,h,i,j) b,
#include "mono/cil/opcode.def"
#undef OPDEF
};
static const gint16 opidx [] = {
#define OPDEF(a,b,c,d,e,f,g,h,i,j) [MONO_ ## a] = offsetof (struct msgstr_t, MSGSTRFIELD(__LINE__)),
#include "mono/cil/opcode.def"
#undef OPDEF
};
const char*
mono_opcode_name (int opcode)
{
return (const char*)&opstr + opidx [opcode];
}
#else
#define OPDEF(a,b,c,d,e,f,g,h,i,j) b,
static const char* const
mono_opcode_names [MONO_CEE_LAST + 1] = {
#include "mono/cil/opcode.def"
NULL
};
const char*
mono_opcode_name (int opcode)
{
return mono_opcode_names [opcode];
}
#endif
MonoOpcodeEnum
mono_opcode_value (const guint8 **ip, const guint8 *end)
{
MonoOpcodeEnum res;
const guint8 *p = *ip;
if (p >= end)
return -1;
if (*p == 0xfe) {
++p;
if (p >= end)
return -1;
res = *p + MONO_PREFIX1_OFFSET;
} else if (*p == MONO_CUSTOM_PREFIX) {
++p;
if (p >= end)
return -1;
res = *p + MONO_CUSTOM_PREFIX_OFFSET;
} else {
res = *p;
}
*ip = p;
return res;
}
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