diff options
3 files changed, 100 insertions, 12 deletions
diff --git a/src/shader_recompiler/CMakeLists.txt b/src/shader_recompiler/CMakeLists.txt index cb73e03fb..51c245a63 100644 --- a/src/shader_recompiler/CMakeLists.txt +++ b/src/shader_recompiler/CMakeLists.txt @@ -85,6 +85,7 @@ add_library(shader_recompiler STATIC frontend/maxwell/translate/impl/integer_shift_left.cpp frontend/maxwell/translate/impl/integer_shift_right.cpp frontend/maxwell/translate/impl/integer_short_multiply_add.cpp + frontend/maxwell/translate/impl/integer_to_integer_conversion.cpp frontend/maxwell/translate/impl/load_store_attribute.cpp frontend/maxwell/translate/impl/load_store_memory.cpp frontend/maxwell/translate/impl/logic_operation.cpp diff --git a/src/shader_recompiler/frontend/maxwell/translate/impl/integer_to_integer_conversion.cpp b/src/shader_recompiler/frontend/maxwell/translate/impl/integer_to_integer_conversion.cpp new file mode 100644 index 000000000..ca28c6dd9 --- /dev/null +++ b/src/shader_recompiler/frontend/maxwell/translate/impl/integer_to_integer_conversion.cpp @@ -0,0 +1,99 @@ +// 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 { +enum class IntegerWidth : u64 { + Byte, + Short, + Word, +}; + +[[nodiscard]] IR::U32 WidthSize(IR::IREmitter& ir, IntegerWidth width) { + switch (width) { + case IntegerWidth::Byte: + return ir.Imm32(8); + case IntegerWidth::Short: + return ir.Imm32(16); + case IntegerWidth::Word: + return ir.Imm32(32); + default: + throw NotImplementedException("Invalid width {}", width); + } +} + +[[nodiscard]] IR::U32 ConvertInteger(IR::IREmitter& ir, const IR::U32& src, + IntegerWidth dst_width) { + const IR::U32 zero{ir.Imm32(0)}; + switch (dst_width) { + case IntegerWidth::Byte: + return ir.BitFieldExtract(src, zero, ir.Imm32(8), false); + case IntegerWidth::Short: + return ir.BitFieldExtract(src, zero, ir.Imm32(16), false); + case IntegerWidth::Word: + return ir.BitFieldExtract(src, zero, ir.Imm32(32), false); + default: + throw NotImplementedException("Invalid width {}", dst_width); + } +} + +void I2I(TranslatorVisitor& v, u64 insn, const IR::U32& src_a) { + union { + u64 insn; + BitField<0, 8, IR::Reg> dest_reg; + BitField<8, 2, IntegerWidth> dst_fmt; + BitField<12, 1, u64> dst_fmt_sign; + BitField<10, 2, IntegerWidth> src_fmt; + BitField<13, 1, u64> src_fmt_sign; + BitField<41, 3, u64> selector; + BitField<45, 1, u64> neg; + BitField<49, 1, u64> abs; + BitField<50, 1, u64> sat; + } const i2i{insn}; + + if (i2i.sat != 0) { + throw NotImplementedException("I2I SAT"); + } + if (i2i.src_fmt == IntegerWidth::Short && (i2i.selector == 1 || i2i.selector == 3)) { + throw NotImplementedException("16-bit source format incompatible with selector {}", + i2i.selector); + } + if (i2i.src_fmt == IntegerWidth::Word && i2i.selector != 0) { + throw NotImplementedException("32-bit source format incompatible with selector {}", + i2i.selector); + } + + const s32 selector{static_cast<s32>(i2i.selector)}; + const IR::U32 offset{v.ir.Imm32(selector * 8)}; + const IR::U32 count{WidthSize(v.ir, i2i.src_fmt)}; + IR::U32 src_values{v.ir.BitFieldExtract(src_a, offset, count, i2i.src_fmt_sign != 0)}; + if (i2i.abs) { + src_values = v.ir.IAbs(src_values); + } + if (i2i.neg) { + src_values = v.ir.INeg(src_values); + } + + const IR::U32 result{ConvertInteger(v.ir, src_values, i2i.dst_fmt)}; + v.X(i2i.dest_reg, result); +} +} // Anonymous namespace + +void TranslatorVisitor::I2I_reg(u64 insn) { + I2I(*this, insn, GetReg20(insn)); +} + +void TranslatorVisitor::I2I_cbuf(u64 insn) { + I2I(*this, insn, GetCbuf(insn)); +} + +void TranslatorVisitor::I2I_imm(u64 insn) { + I2I(*this, insn, GetImm20(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 c24f29ff7..bd7a7a8b7 100644 --- a/src/shader_recompiler/frontend/maxwell/translate/impl/not_implemented.cpp +++ b/src/shader_recompiler/frontend/maxwell/translate/impl/not_implemented.cpp @@ -337,18 +337,6 @@ void TranslatorVisitor::I2F_imm(u64) { ThrowNotImplemented(Opcode::I2F_imm); } -void TranslatorVisitor::I2I_reg(u64) { - ThrowNotImplemented(Opcode::I2I_reg); -} - -void TranslatorVisitor::I2I_cbuf(u64) { - ThrowNotImplemented(Opcode::I2I_cbuf); -} - -void TranslatorVisitor::I2I_imm(u64) { - ThrowNotImplemented(Opcode::I2I_imm); -} - void TranslatorVisitor::IDE(u64) { ThrowNotImplemented(Opcode::IDE); } |