diff options
Diffstat (limited to 'src/shader_recompiler/frontend/maxwell/translate/impl')
-rw-r--r-- | src/shader_recompiler/frontend/maxwell/translate/impl/move_register_to_predicate.cpp | 71 | ||||
-rw-r--r-- | src/shader_recompiler/frontend/maxwell/translate/impl/not_implemented.cpp | 12 |
2 files changed, 71 insertions, 12 deletions
diff --git a/src/shader_recompiler/frontend/maxwell/translate/impl/move_register_to_predicate.cpp b/src/shader_recompiler/frontend/maxwell/translate/impl/move_register_to_predicate.cpp new file mode 100644 index 000000000..eda5f177b --- /dev/null +++ b/src/shader_recompiler/frontend/maxwell/translate/impl/move_register_to_predicate.cpp @@ -0,0 +1,71 @@ +// 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 "shader_recompiler/exception.h" +#include "shader_recompiler/frontend/maxwell/translate/impl/impl.h" + +namespace Shader::Maxwell { +namespace { +enum class Mode : u64 { + PR, + CC, +}; + +void SetFlag(IR::IREmitter& ir, const IR::U1& inv_mask_bit, const IR::U1& src_bit, u32 index) { + switch (index) { + case 0: + return ir.SetZFlag(IR::U1{ir.Select(inv_mask_bit, ir.GetZFlag(), src_bit)}); + case 1: + return ir.SetSFlag(IR::U1{ir.Select(inv_mask_bit, ir.GetSFlag(), src_bit)}); + case 2: + return ir.SetCFlag(IR::U1{ir.Select(inv_mask_bit, ir.GetCFlag(), src_bit)}); + case 3: + return ir.SetOFlag(IR::U1{ir.Select(inv_mask_bit, ir.GetOFlag(), src_bit)}); + default: + throw LogicError("Unreachable R2P index"); + } +} + +void R2P(TranslatorVisitor& v, u64 insn, const IR::U32& mask) { + union { + u64 raw; + BitField<8, 8, IR::Reg> src_reg; + BitField<40, 1, Mode> mode; + BitField<41, 2, u64> byte_selector; + } const r2p{insn}; + const IR::U32 src{v.X(r2p.src_reg)}; + const IR::U32 count{v.ir.Imm32(1)}; + const bool pr_mode{r2p.mode == Mode::PR}; + const u32 num_items{pr_mode ? 7U : 4U}; + const u32 offset_base{static_cast<u32>(r2p.byte_selector) * 8}; + for (u32 index = 0; index < num_items; ++index) { + const IR::U32 offset{v.ir.Imm32(offset_base + index)}; + const IR::U1 src_zero{v.ir.GetZeroFromOp(v.ir.BitFieldExtract(src, offset, count, false))}; + const IR::U1 src_bit{v.ir.LogicalNot(src_zero)}; + const IR::U32 mask_bfe{v.ir.BitFieldExtract(mask, v.ir.Imm32(index), count, false)}; + const IR::U1 inv_mask_bit{v.ir.GetZeroFromOp(mask_bfe)}; + if (pr_mode) { + const IR::Pred pred{index}; + v.ir.SetPred(pred, IR::U1{v.ir.Select(inv_mask_bit, v.ir.GetPred(pred), src_bit)}); + } else { + SetFlag(v.ir, inv_mask_bit, src_bit, index); + } + } +} +} // Anonymous namespace + +void TranslatorVisitor::R2P_reg(u64 insn) { + R2P(*this, insn, GetReg20(insn)); +} + +void TranslatorVisitor::R2P_cbuf(u64 insn) { + R2P(*this, insn, GetCbuf(insn)); +} + +void TranslatorVisitor::R2P_imm(u64 insn) { + R2P(*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 2ab90d1bf..fc6030e04 100644 --- a/src/shader_recompiler/frontend/maxwell/translate/impl/not_implemented.cpp +++ b/src/shader_recompiler/frontend/maxwell/translate/impl/not_implemented.cpp @@ -513,18 +513,6 @@ void TranslatorVisitor::R2B(u64) { ThrowNotImplemented(Opcode::R2B); } -void TranslatorVisitor::R2P_reg(u64) { - ThrowNotImplemented(Opcode::R2P_reg); -} - -void TranslatorVisitor::R2P_cbuf(u64) { - ThrowNotImplemented(Opcode::R2P_cbuf); -} - -void TranslatorVisitor::R2P_imm(u64) { - ThrowNotImplemented(Opcode::R2P_imm); -} - void TranslatorVisitor::RAM(u64) { ThrowNotImplemented(Opcode::RAM); } |