diff options
3 files changed, 57 insertions, 16 deletions
diff --git a/src/shader_recompiler/CMakeLists.txt b/src/shader_recompiler/CMakeLists.txt index 8be2d353f..2e5de7f95 100644 --- a/src/shader_recompiler/CMakeLists.txt +++ b/src/shader_recompiler/CMakeLists.txt @@ -60,6 +60,7 @@ add_library(shader_recompiler STATIC frontend/maxwell/program.cpp frontend/maxwell/program.h frontend/maxwell/translate/impl/bitfield_extract.cpp + frontend/maxwell/translate/impl/bitfield_insert.cpp frontend/maxwell/translate/impl/common_encoding.h frontend/maxwell/translate/impl/floating_point_add.cpp frontend/maxwell/translate/impl/floating_point_conversion_integer.cpp diff --git a/src/shader_recompiler/frontend/maxwell/translate/impl/bitfield_insert.cpp b/src/shader_recompiler/frontend/maxwell/translate/impl/bitfield_insert.cpp new file mode 100644 index 000000000..ee312c30d --- /dev/null +++ b/src/shader_recompiler/frontend/maxwell/translate/impl/bitfield_insert.cpp @@ -0,0 +1,56 @@ +// 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 BFI(TranslatorVisitor& v, u64 insn, const IR::U32& src_a, const IR::U32& base) { + union { + u64 insn; + BitField<0, 8, IR::Reg> dest_reg; + BitField<8, 8, IR::Reg> insert_reg; + } const bfi{insn}; + + const IR::U32 offset{v.ir.BitFieldExtract(src_a, v.ir.Imm32(0), v.ir.Imm32(8), false)}; + const IR::U32 unsafe_count{v.ir.BitFieldExtract(src_a, v.ir.Imm32(8), v.ir.Imm32(8), false)}; + const IR::U32 max_size{v.ir.Imm32(32)}; + + // Edge case conditions + const IR::U1 zero_offset{v.ir.IEqual(offset, v.ir.Imm32(0))}; + const IR::U1 exceed_offset{v.ir.IGreaterThanEqual(offset, max_size, false)}; + const IR::U1 exceed_count{v.ir.IGreaterThanEqual(unsafe_count, max_size, false)}; + + const IR::U32 remaining_size{v.ir.ISub(max_size, offset)}; + const IR::U32 safe_count{v.ir.Select(exceed_count, remaining_size, unsafe_count)}; + + const IR::U32 insert{v.X(bfi.insert_reg)}; + IR::U32 result{v.ir.BitFieldInsert(base, insert, offset, safe_count)}; + + result = IR::U32{v.ir.Select(exceed_offset, base, result)}; + result = IR::U32{v.ir.Select(zero_offset, base, result)}; + + v.X(bfi.dest_reg, result); +} +} // Anonymous namespace + +void TranslatorVisitor::BFI_reg(u64 insn) { + BFI(*this, insn, GetReg20(insn), GetReg39(insn)); +} + +void TranslatorVisitor::BFI_rc(u64 insn) { + BFI(*this, insn, GetReg39(insn), GetCbuf(insn)); +} + +void TranslatorVisitor::BFI_cr(u64 insn) { + BFI(*this, insn, GetCbuf(insn), GetReg39(insn)); +} + +void TranslatorVisitor::BFI_imm(u64 insn) { + BFI(*this, insn, GetImm20(insn), GetReg39(insn)); +} + +} // namespace Shader::Maxwell diff --git a/src/shader_recompiler/frontend/maxwell/translate/impl/not_implemented.cpp b/src/shader_recompiler/frontend/maxwell/translate/impl/not_implemented.cpp index 3714f5f4f..ed2cfac60 100644 --- a/src/shader_recompiler/frontend/maxwell/translate/impl/not_implemented.cpp +++ b/src/shader_recompiler/frontend/maxwell/translate/impl/not_implemented.cpp @@ -49,22 +49,6 @@ void TranslatorVisitor::BAR(u64) { ThrowNotImplemented(Opcode::BAR); } -void TranslatorVisitor::BFI_reg(u64) { - ThrowNotImplemented(Opcode::BFI_reg); -} - -void TranslatorVisitor::BFI_rc(u64) { - ThrowNotImplemented(Opcode::BFI_rc); -} - -void TranslatorVisitor::BFI_cr(u64) { - ThrowNotImplemented(Opcode::BFI_cr); -} - -void TranslatorVisitor::BFI_imm(u64) { - ThrowNotImplemented(Opcode::BFI_imm); -} - void TranslatorVisitor::BPT(u64) { ThrowNotImplemented(Opcode::BPT); } |