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Interpreter: Accurate FTOI 

Plus some ITOF cleanup
This commit is contained in:
TellowKrinkle 2025-02-18 02:22:43 -06:00
parent 25962d361e
commit 823fb1fecd
2 changed files with 27 additions and 93 deletions
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112
pcsx2/VUops.cpp
View File

@ -1619,98 +1619,40 @@ static __fi void _vuNOP(VURegs* VU)
{
}
static __fi s32 float_to_int(float value)
template <u32 Offset>
static __fi u32 floatToInt(u32 uvalue)
{
if (value >= 2147483647.0)
return 2147483647LL;
if (value <= -2147483648.0)
return -2147483648LL;
return value;
float fvalue = std::bit_cast<float>(uvalue);
if (Offset)
fvalue *= std::bit_cast<float>(0x3f800000 + (Offset << 23));
s32 svalue = std::bit_cast<s32>(fvalue);
if (svalue >= static_cast<s32>(0x4f000000))
return 0x7fffffff;
else if (svalue <= static_cast<s32>(0xcf000000))
return 0x80000000;
else
return static_cast<u32>(static_cast<s32>(fvalue));
}
static __fi void _vuFTOI0(VURegs* VU) {
if (_Ft_ == 0) return;
static __fi void _vuFTOI0 (VURegs* VU) { applyUnaryFunction<floatToInt< 0>>(VU); }
static __fi void _vuFTOI4 (VURegs* VU) { applyUnaryFunction<floatToInt< 4>>(VU); }
static __fi void _vuFTOI12(VURegs* VU) { applyUnaryFunction<floatToInt<12>>(VU); }
static __fi void _vuFTOI15(VURegs* VU) { applyUnaryFunction<floatToInt<15>>(VU); }
if (_X) VU->VF[_Ft_].SL[0] = float_to_int(vuDouble(VU->VF[_Fs_].i.x));
if (_Y) VU->VF[_Ft_].SL[1] = float_to_int(vuDouble(VU->VF[_Fs_].i.y));
if (_Z) VU->VF[_Ft_].SL[2] = float_to_int(vuDouble(VU->VF[_Fs_].i.z));
if (_W) VU->VF[_Ft_].SL[3] = float_to_int(vuDouble(VU->VF[_Fs_].i.w));
}
static __fi void _vuFTOI4(VURegs* VU) {
if (_Ft_ == 0) return;
if (_X) VU->VF[_Ft_].SL[0] = float_to_int(float_to_int4(vuDouble(VU->VF[_Fs_].i.x)));
if (_Y) VU->VF[_Ft_].SL[1] = float_to_int(float_to_int4(vuDouble(VU->VF[_Fs_].i.y)));
if (_Z) VU->VF[_Ft_].SL[2] = float_to_int(float_to_int4(vuDouble(VU->VF[_Fs_].i.z)));
if (_W) VU->VF[_Ft_].SL[3] = float_to_int(float_to_int4(vuDouble(VU->VF[_Fs_].i.w)));
}
static __fi void _vuFTOI12(VURegs* VU)
template <u32 Offset>
static __fi u32 intToFloat(u32 uvalue)
{
if (_Ft_ == 0)
return;
if (_X) VU->VF[_Ft_].SL[0] = float_to_int(float_to_int12(vuDouble(VU->VF[_Fs_].i.x)));
if (_Y) VU->VF[_Ft_].SL[1] = float_to_int(float_to_int12(vuDouble(VU->VF[_Fs_].i.y)));
if (_Z) VU->VF[_Ft_].SL[2] = float_to_int(float_to_int12(vuDouble(VU->VF[_Fs_].i.z)));
if (_W) VU->VF[_Ft_].SL[3] = float_to_int(float_to_int12(vuDouble(VU->VF[_Fs_].i.w)));
float fvalue = static_cast<float>(static_cast<s32>(uvalue));
if (Offset)
fvalue *= std::bit_cast<float>(0x3f800000 - (Offset << 23));
return std::bit_cast<u32>(fvalue);
}
static __fi void _vuFTOI15(VURegs* VU)
{
if (_Ft_ == 0)
return;
if (_X) VU->VF[_Ft_].SL[0] = float_to_int(float_to_int15(vuDouble(VU->VF[_Fs_].i.x)));
if (_Y) VU->VF[_Ft_].SL[1] = float_to_int(float_to_int15(vuDouble(VU->VF[_Fs_].i.y)));
if (_Z) VU->VF[_Ft_].SL[2] = float_to_int(float_to_int15(vuDouble(VU->VF[_Fs_].i.z)));
if (_W) VU->VF[_Ft_].SL[3] = float_to_int(float_to_int15(vuDouble(VU->VF[_Fs_].i.w)));
}
static __fi void _vuITOF0(VURegs* VU)
{
if (_Ft_ == 0)
return;
if (_X) VU->VF[_Ft_].f.x = (float)VU->VF[_Fs_].SL[0];
if (_Y) VU->VF[_Ft_].f.y = (float)VU->VF[_Fs_].SL[1];
if (_Z) VU->VF[_Ft_].f.z = (float)VU->VF[_Fs_].SL[2];
if (_W) VU->VF[_Ft_].f.w = (float)VU->VF[_Fs_].SL[3];
}
static __fi void _vuITOF4(VURegs* VU)
{
if (_Ft_ == 0)
return;
if (_X) VU->VF[_Ft_].f.x = int4_to_float(VU->VF[_Fs_].SL[0]);
if (_Y) VU->VF[_Ft_].f.y = int4_to_float(VU->VF[_Fs_].SL[1]);
if (_Z) VU->VF[_Ft_].f.z = int4_to_float(VU->VF[_Fs_].SL[2]);
if (_W) VU->VF[_Ft_].f.w = int4_to_float(VU->VF[_Fs_].SL[3]);
}
static __fi void _vuITOF12(VURegs* VU)
{
if (_Ft_ == 0)
return;
if (_X) VU->VF[_Ft_].f.x = int12_to_float(VU->VF[_Fs_].SL[0]);
if (_Y) VU->VF[_Ft_].f.y = int12_to_float(VU->VF[_Fs_].SL[1]);
if (_Z) VU->VF[_Ft_].f.z = int12_to_float(VU->VF[_Fs_].SL[2]);
if (_W) VU->VF[_Ft_].f.w = int12_to_float(VU->VF[_Fs_].SL[3]);
}
static __fi void _vuITOF15(VURegs* VU)
{
if (_Ft_ == 0)
return;
if (_X) VU->VF[_Ft_].f.x = int15_to_float(VU->VF[_Fs_].SL[0]);
if (_Y) VU->VF[_Ft_].f.y = int15_to_float(VU->VF[_Fs_].SL[1]);
if (_Z) VU->VF[_Ft_].f.z = int15_to_float(VU->VF[_Fs_].SL[2]);
if (_W) VU->VF[_Ft_].f.w = int15_to_float(VU->VF[_Fs_].SL[3]);
}
static __fi void _vuITOF0 (VURegs* VU) { applyUnaryFunction<intToFloat< 0>>(VU); }
static __fi void _vuITOF4 (VURegs* VU) { applyUnaryFunction<intToFloat< 4>>(VU); }
static __fi void _vuITOF12(VURegs* VU) { applyUnaryFunction<intToFloat<12>>(VU); }
static __fi void _vuITOF15(VURegs* VU) { applyUnaryFunction<intToFloat<15>>(VU); }
static __fi void _vuCLIP(VURegs* VU)
{

8
pcsx2/VUops.h
View File

@ -5,14 +5,6 @@
#include "VU.h"
#include "VUflags.h"
#define float_to_int4(x) ((float)x * (1.0f / 0.0625f))
#define float_to_int12(x) ((float)x * (1.0f / 0.000244140625f))
#define float_to_int15(x) ((float)x * (1.0f / 0.000030517578125))
#define int4_to_float(x) (float)((float)x * 0.0625f)
#define int12_to_float(x) (float)((float)x * 0.000244140625f)
#define int15_to_float(x) (float)((float)x * 0.000030517578125)
struct _VURegsNum {
u8 pipe; // if 0xff, COP2
u8 VFwrite;