diff options
Diffstat (limited to '')
| -rw-r--r-- | src/shader_recompiler/frontend/maxwell/translate/impl/half_floating_point_multiply.cpp | 143 | ||||
| -rw-r--r-- | src/shader_recompiler/frontend/maxwell/translate/impl/not_implemented.cpp | 16 |
2 files changed, 143 insertions, 16 deletions
diff --git a/src/shader_recompiler/frontend/maxwell/translate/impl/half_floating_point_multiply.cpp b/src/shader_recompiler/frontend/maxwell/translate/impl/half_floating_point_multiply.cpp new file mode 100644 index 000000000..ff34a8c8f --- /dev/null +++ b/src/shader_recompiler/frontend/maxwell/translate/impl/half_floating_point_multiply.cpp @@ -0,0 +1,143 @@ +// Copyright 2021 yuzu Emulator Project +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#include "shader_recompiler/frontend/maxwell/translate/impl/half_floating_point_helper.h" + +namespace Shader::Maxwell { +namespace { + +void HMUL2(TranslatorVisitor& v, u64 insn, Merge merge, bool sat, bool abs_a, bool neg_a, + Swizzle swizzle_a, bool abs_b, bool neg_b, Swizzle swizzle_b, const IR::U32& src_b, + HalfPrecision precision) { + union { + u64 raw; + BitField<0, 8, IR::Reg> dest_reg; + BitField<8, 8, IR::Reg> src_a; + } const hmul2{insn}; + + auto [lhs_a, rhs_a]{Extract(v.ir, v.X(hmul2.src_a), swizzle_a)}; + auto [lhs_b, rhs_b]{Extract(v.ir, src_b, swizzle_b)}; + const bool promotion{lhs_a.Type() != lhs_b.Type()}; + if (promotion) { + if (lhs_a.Type() == IR::Type::F16) { + lhs_a = v.ir.FPConvert(32, lhs_a); + rhs_a = v.ir.FPConvert(32, rhs_a); + } + if (lhs_b.Type() == IR::Type::F16) { + lhs_b = v.ir.FPConvert(32, lhs_b); + rhs_b = v.ir.FPConvert(32, rhs_b); + } + } + lhs_a = v.ir.FPAbsNeg(lhs_a, abs_a, neg_a); + rhs_a = v.ir.FPAbsNeg(rhs_a, abs_a, neg_a); + + lhs_b = v.ir.FPAbsNeg(lhs_b, abs_b, neg_b); + rhs_b = v.ir.FPAbsNeg(rhs_b, abs_b, neg_b); + + const IR::FpControl fp_control{ + .no_contraction{true}, + .rounding{IR::FpRounding::DontCare}, + .fmz_mode{HalfPrecision2FmzMode(precision)}, + }; + IR::F16F32F64 lhs{v.ir.FPMul(lhs_a, lhs_b, fp_control)}; + IR::F16F32F64 rhs{v.ir.FPMul(rhs_a, rhs_b, fp_control)}; + if (precision == HalfPrecision::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 lhs_zero_a{v.ir.FPEqual(lhs_a, zero)}; + const IR::U1 lhs_zero_b{v.ir.FPEqual(lhs_b, zero)}; + const IR::U1 lhs_any_zero{v.ir.LogicalOr(lhs_zero_a, lhs_zero_b)}; + lhs = IR::F16F32F64{v.ir.Select(lhs_any_zero, zero, lhs)}; + + const IR::U1 rhs_zero_a{v.ir.FPEqual(rhs_a, zero)}; + const IR::U1 rhs_zero_b{v.ir.FPEqual(rhs_b, zero)}; + const IR::U1 rhs_any_zero{v.ir.LogicalOr(rhs_zero_a, rhs_zero_b)}; + rhs = IR::F16F32F64{v.ir.Select(rhs_any_zero, zero, rhs)}; + } + if (sat) { + lhs = v.ir.FPSaturate(lhs); + rhs = v.ir.FPSaturate(rhs); + } + if (promotion) { + lhs = v.ir.FPConvert(16, lhs); + rhs = v.ir.FPConvert(16, rhs); + } + v.X(hmul2.dest_reg, MergeResult(v.ir, hmul2.dest_reg, lhs, rhs, merge)); +} + +void HMUL2(TranslatorVisitor& v, u64 insn, bool sat, bool abs_a, bool neg_a, bool abs_b, bool neg_b, + Swizzle swizzle_b, const IR::U32& src_b) { + union { + u64 raw; + BitField<49, 2, Merge> merge; + BitField<47, 2, Swizzle> swizzle_a; + BitField<39, 2, HalfPrecision> precision; + } const hmul2{insn}; + + HMUL2(v, insn, hmul2.merge, sat, abs_a, neg_a, hmul2.swizzle_a, abs_b, neg_b, swizzle_b, src_b, + hmul2.precision); +} +} // namespace + +void TranslatorVisitor::HMUL2_reg(u64 insn) { + union { + u64 raw; + BitField<32, 1, u64> sat; + BitField<31, 1, u64> neg_b; + BitField<30, 1, u64> abs_b; + BitField<44, 1, u64> abs_a; + BitField<28, 2, Swizzle> swizzle_b; + } const hmul2{insn}; + + HMUL2(*this, insn, hmul2.sat != 0, hmul2.abs_a != 0, false, hmul2.abs_b != 0, hmul2.neg_b != 0, + hmul2.swizzle_b, GetReg20(insn)); +} + +void TranslatorVisitor::HMUL2_cbuf(u64 insn) { + union { + u64 raw; + BitField<52, 1, u64> sat; + BitField<54, 1, u64> abs_b; + BitField<43, 1, u64> neg_a; + BitField<44, 1, u64> abs_a; + } const hmul2{insn}; + + HMUL2(*this, insn, hmul2.sat != 0, hmul2.abs_a != 0, hmul2.neg_a != 0, hmul2.abs_b != 0, false, + Swizzle::F32, GetCbuf(insn)); +} + +void TranslatorVisitor::HMUL2_imm(u64 insn) { + union { + u64 raw; + BitField<52, 1, u64> sat; + BitField<56, 1, u64> neg_high; + BitField<30, 9, u64> high; + BitField<29, 1, u64> neg_low; + BitField<20, 9, u64> low; + BitField<43, 1, u64> neg_a; + BitField<44, 1, u64> abs_a; + } const hmul2{insn}; + + const u32 imm{static_cast<u32>(hmul2.low << 6) | ((hmul2.neg_low != 0 ? 1 : 0) << 15) | + static_cast<u32>(hmul2.high << 22) | ((hmul2.neg_high != 0 ? 1 : 0) << 31)}; + HMUL2(*this, insn, hmul2.sat != 0, hmul2.abs_a != 0, hmul2.neg_a != 0, false, false, + Swizzle::H1_H0, ir.Imm32(imm)); +} + +void TranslatorVisitor::HMUL2_32I(u64 insn) { + union { + u64 raw; + BitField<55, 2, HalfPrecision> precision; + BitField<52, 1, u64> sat; + BitField<53, 2, Swizzle> swizzle_a; + BitField<20, 32, u64> imm32; + } const hmul2{insn}; + + const u32 imm{static_cast<u32>(hmul2.imm32)}; + HMUL2(*this, insn, Merge::H1_H0, hmul2.sat != 0, false, false, hmul2.swizzle_a, false, false, + Swizzle::H1_H0, ir.Imm32(imm), hmul2.precision); +} + +} // namespace Shader::Maxwell diff --git a/src/shader_recompiler/frontend/maxwell/translate/impl/not_implemented.cpp b/src/shader_recompiler/frontend/maxwell/translate/impl/not_implemented.cpp index ddfca8d7a..6c159301f 100644 --- a/src/shader_recompiler/frontend/maxwell/translate/impl/not_implemented.cpp +++ b/src/shader_recompiler/frontend/maxwell/translate/impl/not_implemented.cpp @@ -181,22 +181,6 @@ void TranslatorVisitor::GETLMEMBASE(u64) { ThrowNotImplemented(Opcode::GETLMEMBASE); } -void TranslatorVisitor::HMUL2_reg(u64) { - ThrowNotImplemented(Opcode::HMUL2_reg); -} - -void TranslatorVisitor::HMUL2_cbuf(u64) { - ThrowNotImplemented(Opcode::HMUL2_cbuf); -} - -void TranslatorVisitor::HMUL2_imm(u64) { - ThrowNotImplemented(Opcode::HMUL2_imm); -} - -void TranslatorVisitor::HMUL2_32I(u64) { - ThrowNotImplemented(Opcode::HMUL2_32I); -} - void TranslatorVisitor::HSET2_reg(u64) { ThrowNotImplemented(Opcode::HSET2_reg); } |