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Diffstat (limited to '')
-rw-r--r-- | src/shader_recompiler/frontend/maxwell/translate/impl/half_floating_point_add.cpp | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/src/shader_recompiler/frontend/maxwell/translate/impl/half_floating_point_add.cpp b/src/shader_recompiler/frontend/maxwell/translate/impl/half_floating_point_add.cpp new file mode 100644 index 000000000..f2738a93b --- /dev/null +++ b/src/shader_recompiler/frontend/maxwell/translate/impl/half_floating_point_add.cpp @@ -0,0 +1,125 @@ +// 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 HADD2(TranslatorVisitor& v, u64 insn, Merge merge, bool ftz, 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) { + union { + u64 raw; + BitField<0, 8, IR::Reg> dest_reg; + BitField<8, 8, IR::Reg> src_a; + } const hadd2{insn}; + + auto [lhs_a, rhs_a]{Extract(v.ir, v.X(hadd2.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 = (ftz ? IR::FmzMode::FTZ : IR::FmzMode::None), + }; + IR::F16F32F64 lhs{v.ir.FPAdd(lhs_a, lhs_b, fp_control)}; + IR::F16F32F64 rhs{v.ir.FPAdd(rhs_a, rhs_b, fp_control)}; + 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(hadd2.dest_reg, MergeResult(v.ir, hadd2.dest_reg, lhs, rhs, merge)); +} + +void HADD2(TranslatorVisitor& v, u64 insn, bool sat, bool abs_b, bool neg_b, Swizzle swizzle_b, + const IR::U32& src_b) { + union { + u64 raw; + BitField<49, 2, Merge> merge; + BitField<39, 1, u64> ftz; + BitField<43, 1, u64> neg_a; + BitField<44, 1, u64> abs_a; + BitField<47, 2, Swizzle> swizzle_a; + } const hadd2{insn}; + + HADD2(v, insn, hadd2.merge, hadd2.ftz != 0, sat, hadd2.abs_a != 0, hadd2.neg_a != 0, + hadd2.swizzle_a, abs_b, neg_b, swizzle_b, src_b); +} +} // Anonymous namespace + +void TranslatorVisitor::HADD2_reg(u64 insn) { + union { + u64 raw; + BitField<32, 1, u64> sat; + BitField<31, 1, u64> neg_b; + BitField<30, 1, u64> abs_b; + BitField<28, 2, Swizzle> swizzle_b; + } const hadd2{insn}; + + HADD2(*this, insn, hadd2.sat != 0, hadd2.abs_b != 0, hadd2.neg_b != 0, hadd2.swizzle_b, + GetReg20(insn)); +} + +void TranslatorVisitor::HADD2_cbuf(u64 insn) { + union { + u64 raw; + BitField<52, 1, u64> sat; + BitField<56, 1, u64> neg_b; + BitField<54, 1, u64> abs_b; + } const hadd2{insn}; + + HADD2(*this, insn, hadd2.sat != 0, hadd2.abs_b != 0, hadd2.neg_b != 0, Swizzle::F32, + GetCbuf(insn)); +} + +void TranslatorVisitor::HADD2_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; + } const hadd2{insn}; + + const u32 imm{ + static_cast<u32>(hadd2.low << 6) | static_cast<u32>((hadd2.neg_low != 0 ? 1 : 0) << 15) | + static_cast<u32>(hadd2.high << 22) | static_cast<u32>((hadd2.neg_high != 0 ? 1 : 0) << 31)}; + HADD2(*this, insn, hadd2.sat != 0, false, false, Swizzle::H1_H0, ir.Imm32(imm)); +} + +void TranslatorVisitor::HADD2_32I(u64 insn) { + union { + u64 raw; + BitField<55, 1, u64> ftz; + BitField<52, 1, u64> sat; + BitField<56, 1, u64> neg_a; + BitField<53, 2, Swizzle> swizzle_a; + BitField<20, 32, u64> imm32; + } const hadd2{insn}; + + const u32 imm{static_cast<u32>(hadd2.imm32)}; + HADD2(*this, insn, Merge::H1_H0, hadd2.ftz != 0, hadd2.sat != 0, false, hadd2.neg_a != 0, + hadd2.swizzle_a, false, false, Swizzle::H1_H0, ir.Imm32(imm)); +} +} // namespace Shader::Maxwell |