forked from suyu/suyu
71 lines
2.2 KiB
C++
71 lines
2.2 KiB
C++
// Copyright 2021 yuzu Emulator Project
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#include "common/common_types.h"
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#include "shader_recompiler/exception.h"
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#include "shader_recompiler/frontend/maxwell/translate/impl/common_encoding.h"
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#include "shader_recompiler/frontend/maxwell/translate/impl/impl.h"
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namespace Shader::Maxwell {
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namespace {
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void FADD(TranslatorVisitor& v, u64 insn, bool sat, bool cc, bool ftz, FpRounding fp_rounding,
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const IR::F32& src_b, bool abs_a, bool neg_a, bool abs_b, bool neg_b) {
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union {
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u64 raw;
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BitField<0, 8, IR::Reg> dest_reg;
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BitField<8, 8, IR::Reg> src_a;
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} const fadd{insn};
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if (cc) {
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throw NotImplementedException("FADD CC");
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}
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const IR::F32 op_a{v.ir.FPAbsNeg(v.F(fadd.src_a), abs_a, neg_a)};
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const IR::F32 op_b{v.ir.FPAbsNeg(src_b, abs_b, neg_b)};
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IR::FpControl control{
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.no_contraction{true},
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.rounding{CastFpRounding(fp_rounding)},
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.fmz_mode{ftz ? IR::FmzMode::FTZ : IR::FmzMode::None},
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};
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IR::F32 value{v.ir.FPAdd(op_a, op_b, control)};
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if (sat) {
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value = v.ir.FPSaturate(value);
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}
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v.F(fadd.dest_reg, value);
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}
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void FADD(TranslatorVisitor& v, u64 insn, const IR::F32& src_b) {
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union {
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u64 raw;
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BitField<39, 2, FpRounding> fp_rounding;
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BitField<44, 1, u64> ftz;
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BitField<45, 1, u64> neg_b;
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BitField<46, 1, u64> abs_a;
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BitField<47, 1, u64> cc;
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BitField<48, 1, u64> neg_a;
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BitField<49, 1, u64> abs_b;
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BitField<50, 1, u64> sat;
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} const fadd{insn};
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FADD(v, insn, fadd.sat != 0, fadd.cc != 0, fadd.ftz != 0, fadd.fp_rounding, src_b,
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fadd.abs_a != 0, fadd.neg_a != 0, fadd.abs_b != 0, fadd.neg_b != 0);
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}
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} // Anonymous namespace
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void TranslatorVisitor::FADD_reg(u64 insn) {
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FADD(*this, insn, GetFloatReg20(insn));
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}
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void TranslatorVisitor::FADD_cbuf(u64 insn) {
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FADD(*this, insn, GetFloatCbuf(insn));
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}
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void TranslatorVisitor::FADD_imm(u64 insn) {
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FADD(*this, insn, GetFloatImm20(insn));
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}
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void TranslatorVisitor::FADD32I(u64) {
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throw NotImplementedException("FADD32I");
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}
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} // namespace Shader::Maxwell
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