diff options
Diffstat (limited to 'src/shader_recompiler/frontend/maxwell/translate/impl/select_source_with_predicate.cpp')
-rw-r--r-- | src/shader_recompiler/frontend/maxwell/translate/impl/select_source_with_predicate.cpp | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/src/shader_recompiler/frontend/maxwell/translate/impl/select_source_with_predicate.cpp b/src/shader_recompiler/frontend/maxwell/translate/impl/select_source_with_predicate.cpp new file mode 100644 index 000000000..93baa75a9 --- /dev/null +++ b/src/shader_recompiler/frontend/maxwell/translate/impl/select_source_with_predicate.cpp @@ -0,0 +1,44 @@ +// 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/impl.h" + +namespace Shader::Maxwell { +namespace { + +void SEL(TranslatorVisitor& v, u64 insn, const IR::U32& src) { + union { + u64 raw; + BitField<0, 8, IR::Reg> dest_reg; + BitField<8, 8, IR::Reg> src_reg; + BitField<39, 3, IR::Pred> pred; + BitField<42, 1, u64> neg_pred; + } const sel{insn}; + + const IR::U1 pred = v.ir.GetPred(sel.pred); + IR::U32 op_a{v.X(sel.src_reg)}; + IR::U32 op_b{src}; + if (sel.neg_pred != 0) { + std::swap(op_a, op_b); + } + const IR::U32 result{v.ir.Select(pred, op_a, op_b)}; + + v.X(sel.dest_reg, result); +} +} // Anonymous namespace + +void TranslatorVisitor::SEL_reg(u64 insn) { + SEL(*this, insn, GetReg20(insn)); +} + +void TranslatorVisitor::SEL_cbuf(u64 insn) { + SEL(*this, insn, GetCbuf(insn)); +} + +void TranslatorVisitor::SEL_imm(u64 insn) { + SEL(*this, insn, GetImm20(insn)); +} +} // namespace Shader::Maxwell |