diff options
Diffstat (limited to 'src/shader_recompiler/frontend/maxwell/translate/impl/double_compare_and_set.cpp')
-rw-r--r-- | src/shader_recompiler/frontend/maxwell/translate/impl/double_compare_and_set.cpp | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/src/shader_recompiler/frontend/maxwell/translate/impl/double_compare_and_set.cpp b/src/shader_recompiler/frontend/maxwell/translate/impl/double_compare_and_set.cpp new file mode 100644 index 000000000..1173192e4 --- /dev/null +++ b/src/shader_recompiler/frontend/maxwell/translate/impl/double_compare_and_set.cpp @@ -0,0 +1,72 @@ +// Copyright 2021 yuzu Emulator Project +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#include "common/bit_field.h" +#include "common/common_types.h" +#include "shader_recompiler/frontend/maxwell/translate/impl/common_funcs.h" +#include "shader_recompiler/frontend/maxwell/translate/impl/impl.h" + +namespace Shader::Maxwell { +namespace { +void DSET(TranslatorVisitor& v, u64 insn, const IR::F64& src_b) { + union { + u64 insn; + BitField<0, 8, IR::Reg> dest_reg; + BitField<8, 8, IR::Reg> src_a_reg; + BitField<39, 3, IR::Pred> pred; + BitField<42, 1, u64> neg_pred; + BitField<43, 1, u64> negate_a; + BitField<44, 1, u64> abs_b; + BitField<45, 2, BooleanOp> bop; + BitField<47, 1, u64> cc; + BitField<48, 4, FPCompareOp> compare_op; + BitField<52, 1, u64> bf; + BitField<53, 1, u64> negate_b; + BitField<54, 1, u64> abs_a; + } const dset{insn}; + + const IR::F64 op_a{v.ir.FPAbsNeg(v.D(dset.src_a_reg), dset.abs_a != 0, dset.negate_a != 0)}; + const IR::F64 op_b{v.ir.FPAbsNeg(src_b, dset.abs_b != 0, dset.negate_b != 0)}; + + IR::U1 pred{v.ir.GetPred(dset.pred)}; + if (dset.neg_pred != 0) { + pred = v.ir.LogicalNot(pred); + } + const IR::U1 cmp_result{FloatingPointCompare(v.ir, op_a, op_b, dset.compare_op)}; + const IR::U1 bop_result{PredicateCombine(v.ir, cmp_result, pred, dset.bop)}; + + const IR::U32 one_mask{v.ir.Imm32(-1)}; + const IR::U32 fp_one{v.ir.Imm32(0x3f800000)}; + const IR::U32 zero{v.ir.Imm32(0)}; + const IR::U32 pass_result{dset.bf == 0 ? one_mask : fp_one}; + const IR::U32 result{v.ir.Select(bop_result, pass_result, zero)}; + + v.X(dset.dest_reg, result); + if (dset.cc != 0) { + const IR::U1 is_zero{v.ir.IEqual(result, zero)}; + v.SetZFlag(is_zero); + if (dset.bf != 0) { + v.ResetSFlag(); + } else { + v.SetSFlag(v.ir.LogicalNot(is_zero)); + } + v.ResetCFlag(); + v.ResetOFlag(); + } +} +} // Anonymous namespace + +void TranslatorVisitor::DSET_reg(u64 insn) { + DSET(*this, insn, GetDoubleReg20(insn)); +} + +void TranslatorVisitor::DSET_cbuf(u64 insn) { + DSET(*this, insn, GetDoubleCbuf(insn)); +} + +void TranslatorVisitor::DSET_imm(u64 insn) { + DSET(*this, insn, GetDoubleImm20(insn)); +} + +} // namespace Shader::Maxwell |