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Implement FPTrunc and FPFrac

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This commit is contained in:
Lander Gallastegi 2025-04-10 09:25:51 +02:00
parent 0885dc733f
commit 18cf7a3f2d
2 changed files with 38 additions and 15 deletions
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43
src/shader_recompiler/backend/asm_x64/emit_x64_floating_point.cpp
View file

@ -389,24 +389,47 @@ void EmitFPCeil64(EmitContext& ctx, const Operands& dest, const Operands& op1) {
MovDouble(ctx, dest[0], tmp);
}
void EmitFPTrunc16(EmitContext& ctx) {
throw NotImplementedException("FPTrunc16");
void EmitFPTrunc16(EmitContext& ctx, const Operands& dest, const Operands& op) {
Xmm tmp_xmm = ctx.TempXmmReg();
Reg tmp_reg = dest[0].IsMem() ? ctx.TempGPReg().cvt32() : dest[0].Reg().cvt32();
EmitInlineF16ToF32(ctx, tmp_xmm, op[0].Op());
ctx.Code().cvttss2si(tmp_reg, tmp_xmm);
ctx.Code().cvtsi2ss(tmp_xmm, tmp_reg);
EmitInlineF32ToF16(ctx, dest[0].Op(), tmp_xmm);
}
void EmitFPTrunc32(EmitContext& ctx) {
throw NotImplementedException("FPTrunc32");
void EmitFPTrunc32(EmitContext& ctx, const Operands& dest, const Operands& op) {
Xmm tmp_xmm = dest[0].IsMem() ? ctx.TempXmmReg() : dest[0].Xmm();
Reg tmp_reg = ctx.TempGPReg().cvt32();
ctx.Code().cvttss2si(tmp_reg, op[0].Op());
ctx.Code().cvtsi2ss(tmp_xmm, tmp_reg);
MovFloat(ctx, dest[0], tmp_xmm);
}
void EmitFPTrunc64(EmitContext& ctx) {
throw NotImplementedException("FPTrunc64");
void EmitFPTrunc64(EmitContext& ctx, const Operands& dest, const Operands& op) {
Xmm tmp_xmm = dest[0].IsMem() ? ctx.TempXmmReg() : dest[0].Xmm();
Reg tmp_reg = ctx.TempGPReg();
ctx.Code().cvttsd2si(tmp_reg, op[0].Op());
ctx.Code().cvtsi2sd(tmp_xmm, tmp_reg);
MovDouble(ctx, dest[0], tmp_xmm);
}
void EmitFPFract32(EmitContext& ctx) {
throw NotImplementedException("FPFract32");
void EmitFPFract32(EmitContext& ctx, const Operands& dest, const Operands& op) {
Xmm tmp = dest[0].IsMem() ? ctx.TempXmmReg() : dest[0].Xmm();
Xmm tmp2 = ctx.TempXmmReg();
MovFloat(ctx, tmp, op[0]);
ctx.Code().roundss(tmp2, tmp, 0x01);
ctx.Code().subss(tmp, tmp2);
MovFloat(ctx, dest[0], tmp);
}
void EmitFPFract64(EmitContext& ctx) {
throw NotImplementedException("FPFract64");
void EmitFPFract64(EmitContext& ctx, const Operands& dest, const Operands& op) {
Xmm tmp = dest[0].IsMem() ? ctx.TempXmmReg() : dest[0].Xmm();
Xmm tmp2 = ctx.TempXmmReg();
MovDouble(ctx, tmp, op[0]);
ctx.Code().roundsd(tmp2, tmp, 0x01);
ctx.Code().subsd(tmp, tmp2);
MovDouble(ctx, dest[0], tmp);
}
void EmitFPFrexpSig32(EmitContext& ctx) {

10
src/shader_recompiler/backend/asm_x64/emit_x64_instructions.h
View file

@ -273,11 +273,11 @@ void EmitFPFloor64(EmitContext& ctx, const Operands& dest, const Operands& op1);
void EmitFPCeil16(EmitContext& ctx, const Operands& dest, const Operands& op1);
void EmitFPCeil32(EmitContext& ctx, const Operands& dest, const Operands& op1);
void EmitFPCeil64(EmitContext& ctx, const Operands& dest, const Operands& op1);
void EmitFPTrunc16(EmitContext& ctx);
void EmitFPTrunc32(EmitContext& ctx);
void EmitFPTrunc64(EmitContext& ctx);
void EmitFPFract32(EmitContext& ctx);
void EmitFPFract64(EmitContext& ctx);
void EmitFPTrunc16(EmitContext& ctx, const Operands& dest, const Operands& op);
void EmitFPTrunc32(EmitContext& ctx, const Operands& dest, const Operands& op);
void EmitFPTrunc64(EmitContext& ctx, const Operands& dest, const Operands& op);
void EmitFPFract32(EmitContext& ctx, const Operands& dest, const Operands& op);
void EmitFPFract64(EmitContext& ctx, const Operands& dest, const Operands& op);
void EmitFPFrexpSig32(EmitContext& ctx);
void EmitFPFrexpSig64(EmitContext& ctx);
void EmitFPFrexpExp32(EmitContext& ctx);