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authorReinUsesLisp <reinuseslisp@airmail.cc>2021-02-23 08:46:39 +0100
committerameerj <52414509+ameerj@users.noreply.github.com>2021-07-23 03:51:22 +0200
commit9d6a98d950da39dd2a7ca5ad25525de4fb825415 (patch)
treeed7374adf60d5330f78d48f0ccea65fd65702fac /src/shader_recompiler/frontend/maxwell/translate
parentshader: FMUL, select, RRO, and MUFU fixes (diff)
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-rw-r--r--src/shader_recompiler/frontend/maxwell/translate/impl/floating_point_fused_multiply_add.cpp41
-rw-r--r--src/shader_recompiler/frontend/maxwell/translate/impl/floating_point_multiply.cpp2
-rw-r--r--src/shader_recompiler/frontend/maxwell/translate/impl/integer_short_multiply_add.cpp49
3 files changed, 70 insertions, 22 deletions
diff --git a/src/shader_recompiler/frontend/maxwell/translate/impl/floating_point_fused_multiply_add.cpp b/src/shader_recompiler/frontend/maxwell/translate/impl/floating_point_fused_multiply_add.cpp
index c2ca0873b..18561bc9c 100644
--- a/src/shader_recompiler/frontend/maxwell/translate/impl/floating_point_fused_multiply_add.cpp
+++ b/src/shader_recompiler/frontend/maxwell/translate/impl/floating_point_fused_multiply_add.cpp
@@ -17,9 +17,6 @@ void FFMA(TranslatorVisitor& v, u64 insn, const IR::F32& src_b, const IR::F32& s
BitField<8, 8, IR::Reg> src_a;
} const ffma{insn};
- if (sat) {
- throw NotImplementedException("FFMA SAT");
- }
if (cc) {
throw NotImplementedException("FFMA CC");
}
@@ -31,7 +28,20 @@ void FFMA(TranslatorVisitor& v, u64 insn, const IR::F32& src_b, const IR::F32& s
.rounding{CastFpRounding(fp_rounding)},
.fmz_mode{CastFmzMode(fmz_mode)},
};
- v.F(ffma.dest_reg, v.ir.FPFma(op_a, op_b, op_c, fp_control));
+ IR::F32 value{v.ir.FPFma(op_a, op_b, op_c, fp_control)};
+ if (fmz_mode == FmzMode::FMZ && !sat) {
+ // Do not implement FMZ if SAT is enabled, as it does the logic for us.
+ // On D3D9 mode, anything * 0 is zero, even NAN and infinity
+ const IR::F32 zero{v.ir.Imm32(0.0f)};
+ const IR::U1 zero_a{v.ir.FPEqual(op_a, zero)};
+ const IR::U1 zero_b{v.ir.FPEqual(op_b, zero)};
+ const IR::U1 any_zero{v.ir.LogicalOr(zero_a, zero_b)};
+ value = IR::F32{v.ir.Select(any_zero, op_c, value)};
+ }
+ if (sat) {
+ value = v.ir.FPSaturate(value);
+ }
+ v.F(ffma.dest_reg, value);
}
void FFMA(TranslatorVisitor& v, u64 insn, const IR::F32& src_b, const IR::F32& src_c) {
@@ -54,20 +64,31 @@ void TranslatorVisitor::FFMA_reg(u64 insn) {
FFMA(*this, insn, GetFloatReg20(insn), GetFloatReg39(insn));
}
-void TranslatorVisitor::FFMA_rc(u64) {
- throw NotImplementedException("FFMA (rc)");
+void TranslatorVisitor::FFMA_rc(u64 insn) {
+ FFMA(*this, insn, GetFloatReg39(insn), GetFloatCbuf(insn));
}
void TranslatorVisitor::FFMA_cr(u64 insn) {
FFMA(*this, insn, GetFloatCbuf(insn), GetFloatReg39(insn));
}
-void TranslatorVisitor::FFMA_imm(u64) {
- throw NotImplementedException("FFMA (imm)");
+void TranslatorVisitor::FFMA_imm(u64 insn) {
+ FFMA(*this, insn, GetFloatImm20(insn), GetFloatReg39(insn));
}
-void TranslatorVisitor::FFMA32I(u64) {
- throw NotImplementedException("FFMA32I");
+void TranslatorVisitor::FFMA32I(u64 insn) {
+ union {
+ u64 raw;
+ BitField<0, 8, IR::Reg> src_c; // FFMA32I mirrors the destination and addition register
+ BitField<52, 1, u64> cc;
+ BitField<53, 2, FmzMode> fmz_mode;
+ BitField<55, 1, u64> sat;
+ BitField<56, 1, u64> neg_a;
+ BitField<57, 1, u64> neg_c;
+ } const ffma32i{insn};
+
+ FFMA(*this, insn, GetFloatImm32(insn), F(ffma32i.src_c), ffma32i.neg_a != 0, false,
+ ffma32i.neg_c != 0, ffma32i.sat != 0, ffma32i.cc != 0, ffma32i.fmz_mode, FpRounding::RN);
}
} // namespace Shader::Maxwell
diff --git a/src/shader_recompiler/frontend/maxwell/translate/impl/floating_point_multiply.cpp b/src/shader_recompiler/frontend/maxwell/translate/impl/floating_point_multiply.cpp
index edf2cadae..72f0a18ae 100644
--- a/src/shader_recompiler/frontend/maxwell/translate/impl/floating_point_multiply.cpp
+++ b/src/shader_recompiler/frontend/maxwell/translate/impl/floating_point_multiply.cpp
@@ -94,6 +94,7 @@ void FMUL(TranslatorVisitor& v, u64 insn, const IR::F32& src_b) {
BitField<48, 1, u64> neg_b;
BitField<50, 1, u64> sat;
} const fmul{insn};
+
FMUL(v, insn, src_b, fmul.fmz, fmul.fp_rounding, fmul.scale, fmul.sat != 0, fmul.cc != 0,
fmul.neg_b != 0);
}
@@ -118,6 +119,7 @@ void TranslatorVisitor::FMUL32I(u64 insn) {
BitField<53, 2, FmzMode> fmz;
BitField<55, 1, u64> sat;
} const fmul32i{insn};
+
FMUL(*this, insn, GetFloatImm32(insn), fmul32i.fmz, FpRounding::RN, Scale::None,
fmul32i.sat != 0, fmul32i.cc != 0, false);
}
diff --git a/src/shader_recompiler/frontend/maxwell/translate/impl/integer_short_multiply_add.cpp b/src/shader_recompiler/frontend/maxwell/translate/impl/integer_short_multiply_add.cpp
index 70a7c76c5..2932cdc42 100644
--- a/src/shader_recompiler/frontend/maxwell/translate/impl/integer_short_multiply_add.cpp
+++ b/src/shader_recompiler/frontend/maxwell/translate/impl/integer_short_multiply_add.cpp
@@ -58,7 +58,7 @@ void XMAD(TranslatorVisitor& v, u64 insn, const IR::U32& src_b, const IR::U32& s
case SelectMode::CHI:
return ExtractHalf(v, src_c, Half::H1, false);
case SelectMode::CBCC:
- return v.ir.IAdd(v.ir.ShiftLeftLogical(src_b, v.ir.Imm32(16)), src_b);
+ return v.ir.IAdd(v.ir.ShiftLeftLogical(src_b, v.ir.Imm32(16)), src_c);
case SelectMode::CSFU:
throw NotImplementedException("XMAD CSFU");
}
@@ -78,16 +78,44 @@ void XMAD(TranslatorVisitor& v, u64 insn, const IR::U32& src_b, const IR::U32& s
}
} // Anonymous namespace
-void TranslatorVisitor::XMAD_reg(u64) {
- throw NotImplementedException("XMAD (reg)");
+void TranslatorVisitor::XMAD_reg(u64 insn) {
+ union {
+ u64 raw;
+ BitField<35, 1, Half> half_b;
+ BitField<36, 1, u64> psl;
+ BitField<37, 1, u64> mrg;
+ BitField<38, 1, u64> x;
+ BitField<50, 3, SelectMode> select_mode;
+ } const xmad{insn};
+
+ XMAD(*this, insn, GetReg20(insn), GetReg39(insn), xmad.select_mode, xmad.half_b, xmad.psl != 0,
+ xmad.mrg != 0, xmad.x != 0);
}
-void TranslatorVisitor::XMAD_rc(u64) {
- throw NotImplementedException("XMAD (rc)");
+void TranslatorVisitor::XMAD_rc(u64 insn) {
+ union {
+ u64 raw;
+ BitField<50, 2, SelectMode> select_mode;
+ BitField<52, 1, Half> half_b;
+ BitField<54, 1, u64> x;
+ } const xmad{insn};
+
+ XMAD(*this, insn, GetReg39(insn), GetCbuf(insn), xmad.select_mode, xmad.half_b, false, false,
+ xmad.x != 0);
}
-void TranslatorVisitor::XMAD_cr(u64) {
- throw NotImplementedException("XMAD (cr)");
+void TranslatorVisitor::XMAD_cr(u64 insn) {
+ union {
+ u64 raw;
+ BitField<50, 2, SelectMode> select_mode;
+ BitField<52, 1, Half> half_b;
+ BitField<54, 1, u64> x;
+ BitField<55, 1, u64> psl;
+ BitField<56, 1, u64> mrg;
+ } const xmad{insn};
+
+ XMAD(*this, insn, GetCbuf(insn), GetReg39(insn), xmad.select_mode, xmad.half_b, xmad.psl != 0,
+ xmad.mrg != 0, xmad.x != 0);
}
void TranslatorVisitor::XMAD_imm(u64 insn) {
@@ -97,14 +125,11 @@ void TranslatorVisitor::XMAD_imm(u64 insn) {
BitField<36, 1, u64> psl;
BitField<37, 1, u64> mrg;
BitField<38, 1, u64> x;
- BitField<39, 8, IR::Reg> src_c;
BitField<50, 3, SelectMode> select_mode;
} const xmad{insn};
- const IR::U32 src_b{ir.Imm32(static_cast<u32>(xmad.src_b))};
- const IR::U32 src_c{X(xmad.src_c)};
- XMAD(*this, insn, src_b, src_c, xmad.select_mode, Half::H0, xmad.psl != 0, xmad.mrg != 0,
- xmad.x != 0);
+ XMAD(*this, insn, ir.Imm32(static_cast<u32>(xmad.src_b)), GetReg39(insn), xmad.select_mode,
+ Half::H0, xmad.psl != 0, xmad.mrg != 0, xmad.x != 0);
}
} // namespace Shader::Maxwell