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Diffstat (limited to '')
-rw-r--r-- | src/shader_recompiler/frontend/maxwell/translate/impl/floating_point_add.cpp | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/src/shader_recompiler/frontend/maxwell/translate/impl/floating_point_add.cpp b/src/shader_recompiler/frontend/maxwell/translate/impl/floating_point_add.cpp new file mode 100644 index 000000000..b8c89810c --- /dev/null +++ b/src/shader_recompiler/frontend/maxwell/translate/impl/floating_point_add.cpp @@ -0,0 +1,82 @@ +// Copyright 2021 yuzu Emulator Project +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#include "common/common_types.h" +#include "shader_recompiler/exception.h" +#include "shader_recompiler/frontend/maxwell/translate/impl/common_encoding.h" +#include "shader_recompiler/frontend/maxwell/translate/impl/impl.h" + +namespace Shader::Maxwell { +namespace { +void FADD(TranslatorVisitor& v, u64 insn, bool sat, bool cc, bool ftz, FpRounding fp_rounding, + const IR::F32& src_b, bool abs_a, bool neg_a, bool abs_b, bool neg_b) { + union { + u64 raw; + BitField<0, 8, IR::Reg> dest_reg; + BitField<8, 8, IR::Reg> src_a; + } const fadd{insn}; + + if (cc) { + throw NotImplementedException("FADD CC"); + } + const IR::F32 op_a{v.ir.FPAbsNeg(v.F(fadd.src_a), abs_a, neg_a)}; + const IR::F32 op_b{v.ir.FPAbsNeg(src_b, abs_b, neg_b)}; + IR::FpControl control{ + .no_contraction = true, + .rounding = CastFpRounding(fp_rounding), + .fmz_mode = (ftz ? IR::FmzMode::FTZ : IR::FmzMode::None), + }; + IR::F32 value{v.ir.FPAdd(op_a, op_b, control)}; + if (sat) { + value = v.ir.FPSaturate(value); + } + v.F(fadd.dest_reg, value); +} + +void FADD(TranslatorVisitor& v, u64 insn, const IR::F32& src_b) { + union { + u64 raw; + BitField<39, 2, FpRounding> fp_rounding; + BitField<44, 1, u64> ftz; + BitField<45, 1, u64> neg_b; + BitField<46, 1, u64> abs_a; + BitField<47, 1, u64> cc; + BitField<48, 1, u64> neg_a; + BitField<49, 1, u64> abs_b; + BitField<50, 1, u64> sat; + } const fadd{insn}; + + FADD(v, insn, fadd.sat != 0, fadd.cc != 0, fadd.ftz != 0, fadd.fp_rounding, src_b, + fadd.abs_a != 0, fadd.neg_a != 0, fadd.abs_b != 0, fadd.neg_b != 0); +} +} // Anonymous namespace + +void TranslatorVisitor::FADD_reg(u64 insn) { + FADD(*this, insn, GetFloatReg20(insn)); +} + +void TranslatorVisitor::FADD_cbuf(u64 insn) { + FADD(*this, insn, GetFloatCbuf(insn)); +} + +void TranslatorVisitor::FADD_imm(u64 insn) { + FADD(*this, insn, GetFloatImm20(insn)); +} + +void TranslatorVisitor::FADD32I(u64 insn) { + union { + u64 raw; + BitField<55, 1, u64> ftz; + BitField<56, 1, u64> neg_a; + BitField<54, 1, u64> abs_a; + BitField<52, 1, u64> cc; + BitField<53, 1, u64> neg_b; + BitField<57, 1, u64> abs_b; + } const fadd32i{insn}; + + FADD(*this, insn, false, fadd32i.cc != 0, fadd32i.ftz != 0, FpRounding::RN, GetFloatImm32(insn), + fadd32i.abs_a != 0, fadd32i.neg_a != 0, fadd32i.abs_b != 0, fadd32i.neg_b != 0); +} + +} // namespace Shader::Maxwell |