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Initial submission of the PCem-Experimental source code.

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OBattler
2016-06-26 00:34:39 +02:00
parent 09d7c4384f
commit fd2a5bc9f5
610 changed files with 184352 additions and 0 deletions
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80
src/x86_ops_prefix.h Normal file
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#define op_seg(name, seg) \
static int op ## name ## _w_a16(uint32_t fetchdat) \
{ \
fetchdat = fastreadl(cs + cpu_state.pc); \
if (abrt) return 1; \
cpu_state.pc++; \
\
ea_seg = &seg; \
ssegs = 1; \
CLOCK_CYCLES(4); \
\
return x86_opcodes[fetchdat & 0xff](fetchdat >> 8); \
} \
\
static int op ## name ## _l_a16(uint32_t fetchdat) \
{ \
fetchdat = fastreadl(cs + cpu_state.pc); \
if (abrt) return 1; \
cpu_state.pc++; \
\
ea_seg = &seg; \
ssegs = 1; \
CLOCK_CYCLES(4); \
\
return x86_opcodes[(fetchdat & 0xff) | 0x100](fetchdat >> 8); \
} \
\
static int op ## name ## _w_a32(uint32_t fetchdat) \
{ \
fetchdat = fastreadl(cs + cpu_state.pc); \
if (abrt) return 1; \
cpu_state.pc++; \
\
ea_seg = &seg; \
ssegs = 1; \
CLOCK_CYCLES(4); \
\
return x86_opcodes[(fetchdat & 0xff) | 0x200](fetchdat >> 8); \
} \
\
static int op ## name ## _l_a32(uint32_t fetchdat) \
{ \
fetchdat = fastreadl(cs + cpu_state.pc); \
if (abrt) return 1; \
cpu_state.pc++; \
\
ea_seg = &seg; \
ssegs = 1; \
CLOCK_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 + cpu_state.pc);
if (abrt) return 1;
cpu_state.pc++;
op32 = ((use32 & 0x100) ^ 0x100) | (op32 & 0x200);
CLOCK_CYCLES(2);
return x86_opcodes[(fetchdat & 0xff) | op32](fetchdat >> 8);
}
static int op_67(uint32_t fetchdat) /*Address size select*/
{
fetchdat = fastreadl(cs + cpu_state.pc);
if (abrt) return 1;
cpu_state.pc++;
op32 = ((use32 & 0x200) ^ 0x200) | (op32 & 0x100);
CLOCK_CYCLES(2);
return x86_opcodes[(fetchdat & 0xff) | op32](fetchdat >> 8);
}