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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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86
src/x86_ops_inc_dec.h Normal file
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#define INC_DEC_OP(name, reg, inc, setflags) \
static int op ## name (uint32_t fetchdat) \
{ \
setflags(reg, 1); \
reg += inc; \
CLOCK_CYCLES(timing_rr); \
return 0; \
}
INC_DEC_OP(INC_AX, AX, 1, setadd16nc)
INC_DEC_OP(INC_BX, BX, 1, setadd16nc)
INC_DEC_OP(INC_CX, CX, 1, setadd16nc)
INC_DEC_OP(INC_DX, DX, 1, setadd16nc)
INC_DEC_OP(INC_SI, SI, 1, setadd16nc)
INC_DEC_OP(INC_DI, DI, 1, setadd16nc)
INC_DEC_OP(INC_BP, BP, 1, setadd16nc)
INC_DEC_OP(INC_SP, SP, 1, setadd16nc)
INC_DEC_OP(INC_EAX, EAX, 1, setadd32nc)
INC_DEC_OP(INC_EBX, EBX, 1, setadd32nc)
INC_DEC_OP(INC_ECX, ECX, 1, setadd32nc)
INC_DEC_OP(INC_EDX, EDX, 1, setadd32nc)
INC_DEC_OP(INC_ESI, ESI, 1, setadd32nc)
INC_DEC_OP(INC_EDI, EDI, 1, setadd32nc)
INC_DEC_OP(INC_EBP, EBP, 1, setadd32nc)
INC_DEC_OP(INC_ESP, ESP, 1, setadd32nc)
INC_DEC_OP(DEC_AX, AX, -1, setsub16nc)
INC_DEC_OP(DEC_BX, BX, -1, setsub16nc)
INC_DEC_OP(DEC_CX, CX, -1, setsub16nc)
INC_DEC_OP(DEC_DX, DX, -1, setsub16nc)
INC_DEC_OP(DEC_SI, SI, -1, setsub16nc)
INC_DEC_OP(DEC_DI, DI, -1, setsub16nc)
INC_DEC_OP(DEC_BP, BP, -1, setsub16nc)
INC_DEC_OP(DEC_SP, SP, -1, setsub16nc)
INC_DEC_OP(DEC_EAX, EAX, -1, setsub32nc)
INC_DEC_OP(DEC_EBX, EBX, -1, setsub32nc)
INC_DEC_OP(DEC_ECX, ECX, -1, setsub32nc)
INC_DEC_OP(DEC_EDX, EDX, -1, setsub32nc)
INC_DEC_OP(DEC_ESI, ESI, -1, setsub32nc)
INC_DEC_OP(DEC_EDI, EDI, -1, setsub32nc)
INC_DEC_OP(DEC_EBP, EBP, -1, setsub32nc)
INC_DEC_OP(DEC_ESP, ESP, -1, setsub32nc)
static int opINCDEC_b_a16(uint32_t fetchdat)
{
uint8_t temp;
fetch_ea_16(fetchdat);
temp=geteab(); if (abrt) return 1;
if (rmdat&0x38)
{
seteab(temp - 1); if (abrt) return 1;
setsub8nc(temp, 1);
}
else
{
seteab(temp + 1); if (abrt) return 1;
setadd8nc(temp, 1);
}
CLOCK_CYCLES((mod == 3) ? timing_rr : timing_mm);
return 0;
}
static int opINCDEC_b_a32(uint32_t fetchdat)
{
uint8_t temp;
fetch_ea_32(fetchdat);
temp=geteab(); if (abrt) return 1;
if (rmdat&0x38)
{
seteab(temp - 1); if (abrt) return 1;
setsub8nc(temp, 1);
}
else
{
seteab(temp + 1); if (abrt) return 1;
setadd8nc(temp, 1);
}
CLOCK_CYCLES((mod == 3) ? timing_rr : timing_mm);
return 0;
}