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#define if2 if12
#define f2Op1 f12Op1
#define f2Op2 f12Op2
#define f2Flag1 f12Flag1
#define f2Flag2 f12Flag2
#define F2END() \
return 2+amLength1+amLength2;
#define F2LOADOPFLOAT(num) \
if (f2Flag##num) \
appf = u2f(v60.reg[f2Op##num]); \
else \
appf = u2f(MemRead32(f2Op##num));
#define F2STOREOPFLOAT(num) \
if (f2Flag##num) \
v60.reg[f2Op##num] = f2u(appf); \
else \
MemWrite32(f2Op##num, f2u(appf));
static void F2DecodeFirstOperand(UINT32 (*DecodeOp1)(void), UINT8 dim1)
{
modDim = dim1;
modM = if2 & 0x40;
modAdd = PC + 2;
amLength1 = DecodeOp1();
f2Op1 = amOut;
f2Flag1 = amFlag;
}
static void F2DecodeSecondOperand(UINT32 (*DecodeOp2)(void), UINT8 dim2)
{
modDim = dim2;
modM = if2 & 0x20;
modAdd = PC + 2 + amLength1;
amLength2 = DecodeOp2();
f2Op2 = amOut;
f2Flag2 = amFlag;
}
static void F2WriteSecondOperand(UINT8 dim2)
{
modDim = dim2;
modM = if2 & 0x20;
modAdd = PC + 2 + amLength1;
amLength2 = WriteAM();
}
static UINT32 opCVTWS(void)
{
float val;
F2DecodeFirstOperand(ReadAM,2);
// Convert to float
val = (float)(INT32)f2Op1;
modWriteValW = f2u(val);
_OV=0;
_CY=(val < 0.0f);
_S=((modWriteValW & 0x80000000)!=0);
_Z=(val == 0.0f);
F2WriteSecondOperand(2);
F2END();
}
static UINT32 opCVTSW(void)
{
float val;
F2DecodeFirstOperand(ReadAM,2);
// Convert to UINT32
val = u2f(f2Op1);
modWriteValW = (UINT32)val;
_OV=0;
_CY=(val < 0.0f);
_S=((modWriteValW & 0x80000000)!=0);
_Z=(val == 0.0f);
F2WriteSecondOperand(2);
F2END();
}
static UINT32 opMOVFS(void)
{
F2DecodeFirstOperand(ReadAM,2);
modWriteValW = f2Op1;
F2WriteSecondOperand(2);
F2END();
}
static UINT32 opNEGFS(void)
{
float appf;
F2DecodeFirstOperand(ReadAM, 2);
F2DecodeSecondOperand(ReadAMAddress, 2);
appf = -u2f(f2Op1);
_OV=0;
_CY=(appf < 0.0f);
_S=((f2u(appf) & 0x80000000)!=0);
_Z=(appf == 0.0f);
F2STOREOPFLOAT(2);
F2END()
}
static UINT32 opABSFS(void)
{
float appf;
F2DecodeFirstOperand(ReadAM, 2);
F2DecodeSecondOperand(ReadAMAddress, 2);
appf = u2f(f2Op1);
if(appf < 0)
appf = -appf;
_OV=0;
_CY=0;
_S=((f2u(appf) & 0x80000000)!=0);
_Z=(appf == 0.0f);
F2STOREOPFLOAT(2);
F2END()
}
static UINT32 opADDFS(void)
{
UINT32 appw;
float appf;
F2DecodeFirstOperand(ReadAM, 2);
F2DecodeSecondOperand(ReadAMAddress, 2);
F2LOADOPFLOAT(2);
appf += u2f(f2Op1);
appw = f2u(appf);
_OV = _CY = 0;
_S = ((appw & 0x80000000)!=0);
_Z = (appw == 0);
F2STOREOPFLOAT(2);
F2END()
}
static UINT32 opSUBFS(void)
{
UINT32 appw;
float appf;
F2DecodeFirstOperand(ReadAM, 2);
F2DecodeSecondOperand(ReadAMAddress, 2);
F2LOADOPFLOAT(2);
appf -= u2f(f2Op1);
appw = f2u(appf);
_OV = _CY = 0;
_S = ((appw & 0x80000000)!=0);
_Z = (appw == 0);
F2STOREOPFLOAT(2);
F2END()
}
static UINT32 opMULFS(void)
{
UINT32 appw;
float appf;
F2DecodeFirstOperand(ReadAM, 2);
F2DecodeSecondOperand(ReadAMAddress, 2);
F2LOADOPFLOAT(2);
appf *= u2f(f2Op1);
appw = f2u(appf);
_OV = _CY = 0;
_S = ((appw & 0x80000000)!=0);
_Z = (appw == 0);
F2STOREOPFLOAT(2);
F2END()
}
static UINT32 opDIVFS(void)
{
UINT32 appw;
float appf;
F2DecodeFirstOperand(ReadAM, 2);
F2DecodeSecondOperand(ReadAMAddress, 2);
F2LOADOPFLOAT(2);
appf /= u2f(f2Op1);
appw = f2u(appf);
_OV = _CY = 0;
_S = ((appw & 0x80000000)!=0);
_Z = (appw == 0);
F2STOREOPFLOAT(2);
F2END()
}
static UINT32 opSCLFS(void)
{
UINT32 appw;
float appf;
F2DecodeFirstOperand(ReadAM, 1);
F2DecodeSecondOperand(ReadAMAddress, 2);
F2LOADOPFLOAT(2);
if ((INT16)f2Op1 < 0)
appf /= 1 << -(INT16)f2Op1;
else
appf *= 1 << f2Op1;
appw = f2u(appf);
_OV = _CY = 0;
_S = ((appw & 0x80000000)!=0);
_Z = (appw == 0);
F2STOREOPFLOAT(2);
F2END()
}
static UINT32 opCMPF(void)
{
float appf;
F2DecodeFirstOperand(ReadAM, 2);
F2DecodeSecondOperand(ReadAM, 2);
appf = u2f(f2Op2) - u2f(f2Op1);
_Z = (appf == 0);
_S = (appf < 0);
_OV = 0;
_CY = 0;
F2END();
}
static UINT32 op5FUNHANDLED(void)
{
fatalerror("Unhandled 5F opcode at %08x", PC);
return 0; /* never reached, fatalerror won't return */
}
static UINT32 op5CUNHANDLED(void)
{
fatalerror("Unhandled 5C opcode at %08x", PC);
return 0; /* never reached, fatalerror won't return */
}
static UINT32 (*const Op5FTable[32])(void) =
{
opCVTWS,
opCVTSW,
op5FUNHANDLED,
op5FUNHANDLED,
op5FUNHANDLED,
op5FUNHANDLED,
op5FUNHANDLED,
op5FUNHANDLED,
op5FUNHANDLED,
op5FUNHANDLED,
op5FUNHANDLED,
op5FUNHANDLED,
op5FUNHANDLED,
op5FUNHANDLED,
op5FUNHANDLED,
op5FUNHANDLED,
op5FUNHANDLED,
op5FUNHANDLED,
op5FUNHANDLED,
op5FUNHANDLED,
op5FUNHANDLED,
op5FUNHANDLED,
op5FUNHANDLED,
op5FUNHANDLED,
op5FUNHANDLED,
op5FUNHANDLED,
op5FUNHANDLED,
op5FUNHANDLED,
op5FUNHANDLED,
op5FUNHANDLED,
op5FUNHANDLED,
op5FUNHANDLED
};
static UINT32 (*const Op5CTable[32])(void) =
{
opCMPF,
op5CUNHANDLED,
op5CUNHANDLED,
op5CUNHANDLED,
op5CUNHANDLED,
op5CUNHANDLED,
op5CUNHANDLED,
op5CUNHANDLED,
opMOVFS,
opNEGFS,
opABSFS,
op5CUNHANDLED,
op5CUNHANDLED,
op5CUNHANDLED,
op5CUNHANDLED,
op5CUNHANDLED,
opSCLFS,
op5CUNHANDLED,
op5CUNHANDLED,
op5CUNHANDLED,
op5CUNHANDLED,
op5CUNHANDLED,
op5CUNHANDLED,
op5CUNHANDLED,
opADDFS,
opSUBFS,
opMULFS,
opDIVFS,
op5CUNHANDLED,
op5CUNHANDLED,
op5CUNHANDLED,
op5CUNHANDLED
};
static UINT32 op5F(void)
{
if2 = OpRead8(PC + 1);
return Op5FTable[if2&0x1F]();
}
static UINT32 op5C(void)
{
if2 = OpRead8(PC + 1);
return Op5CTable[if2&0x1F]();
}
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