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Current WIP code.

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This commit is contained in:
OBattler
2020-02-29 19:12:23 +01:00
parent 3b6cc393eb
commit 490c04fcae
882 changed files with 37763 additions and 9455 deletions
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49
src/cpu_common/x86_ops_mmx.h Normal file
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#define SSATB(val) (((val) < -128) ? -128 : (((val) > 127) ? 127 : (val)))
#define SSATW(val) (((val) < -32768) ? -32768 : (((val) > 32767) ? 32767 : (val)))
#define USATB(val) (((val) < 0) ? 0 : (((val) > 255) ? 255 : (val)))
#define USATW(val) (((val) < 0) ? 0 : (((val) > 65535) ? 65535 : (val)))
#define MMX_GETSRC() \
if (cpu_mod == 3) \
{ \
src = cpu_state.MM[cpu_rm]; \
CLOCK_CYCLES(1); \
} \
else \
{ \
SEG_CHECK_READ(cpu_state.ea_seg); \
src.q = readmemq(easeg, cpu_state.eaaddr); if (cpu_state.abrt) return 1; \
CLOCK_CYCLES(2); \
}
#define MMX_ENTER() \
if (!cpu_has_feature(CPU_FEATURE_MMX)) \
{ \
cpu_state.pc = cpu_state.oldpc; \
x86illegal(); \
return 1; \
} \
if (cr0 & 0xc) \
{ \
x86_int(7); \
return 1; \
} \
x87_set_mmx()
static int opEMMS(uint32_t fetchdat)
{
if (!cpu_has_feature(CPU_FEATURE_MMX))
{
cpu_state.pc = cpu_state.oldpc;
x86illegal();
return 1;
}
if (cr0 & 0xc)
{
x86_int(7);
return 1;
}
x87_emms();
CLOCK_CYCLES(100); /*Guess*/
return 0;
}