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Initial commit of dynamic recompiler.

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Various CPU changes to support dynamic recompiler.
This commit is contained in:
TomW 2014-11-05 21:24:16 +00:00
commit 4676daade4
52 changed files with 3740 additions and 1139 deletions
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110
src/x86_ops_prefix.h
View file

@ -1,56 +1,80 @@
static int op_CS(uint32_t fetchdat)
{
ea_seg = &_cs;
ssegs = 1;
cycles -= 4;
return 1;
}
static int op_DS(uint32_t fetchdat)
{
ea_seg = &_ds;
ssegs = 1;
cycles -= 4;
return 1;
}
static int op_ES(uint32_t fetchdat)
{
ea_seg = &_es;
ssegs = 1;
cycles -= 4;
return 1;
}
static int op_FS(uint32_t fetchdat)
{
ea_seg = &_fs;
ssegs = 1;
cycles -= 4;
return 1;
}
static int op_GS(uint32_t fetchdat)
{
ea_seg = &_gs;
ssegs = 1;
cycles -= 4;
return 1;
}
static int op_SS(uint32_t fetchdat)
{
ea_seg = &_ss;
ssegs = 1;
cycles -= 4;
return 1;
#define op_seg(name, seg) \
static int op ## name ## _w_a16(uint32_t fetchdat) \
{ \
fetchdat = fastreadl(cs + pc); \
if (abrt) return 1; \
pc++; \
\
ea_seg = &seg; \
ssegs = 1; \
cycles -= 4; \
\
return x86_opcodes[fetchdat & 0xff](fetchdat >> 8); \
} \
\
static int op ## name ## _l_a16(uint32_t fetchdat) \
{ \
fetchdat = fastreadl(cs + pc); \
if (abrt) return 1; \
pc++; \
\
ea_seg = &seg; \
ssegs = 1; \
cycles -= 4; \
\
return x86_opcodes[(fetchdat & 0xff) | 0x100](fetchdat >> 8); \
} \
\
static int op ## name ## _w_a32(uint32_t fetchdat) \
{ \
fetchdat = fastreadl(cs + pc); \
if (abrt) return 1; \
pc++; \
\
ea_seg = &seg; \
ssegs = 1; \
cycles -= 4; \
\
return x86_opcodes[(fetchdat & 0xff) | 0x200](fetchdat >> 8); \
} \
\
static int op ## name ## _l_a32(uint32_t fetchdat) \
{ \
fetchdat = fastreadl(cs + pc); \
if (abrt) return 1; \
pc++; \
\
ea_seg = &seg; \
ssegs = 1; \
cycles -= 4; \
\
return x86_opcodes[(fetchdat & 0xff) | 0x300](fetchdat >> 8); \
}
op_seg(CS, _cs)
op_seg(DS, _ds)
op_seg(ES, _es)
op_seg(FS, _fs)
op_seg(GS, _gs)
op_seg(SS, _ss)
static int op_66(uint32_t fetchdat) /*Data size select*/
{
fetchdat = fastreadl(cs + pc);
if (abrt) return 1;
pc++;
op32 = ((use32 & 0x100) ^ 0x100) | (op32 & 0x200);
cycles -= 2;
return 1;
return x86_opcodes[(fetchdat & 0xff) | op32](fetchdat >> 8);
}
static int op_67(uint32_t fetchdat) /*Address size select*/
{
fetchdat = fastreadl(cs + pc);
if (abrt) return 1;
pc++;
op32 = ((use32 & 0x200) ^ 0x200) | (op32 & 0x100);
cycles -= 2;
return 1;
return x86_opcodes[(fetchdat & 0xff) | op32](fetchdat >> 8);
}