From 2d48a7b4d0666ad16d03a22d85712617a0849046 Mon Sep 17 00:00:00 2001
From: ReinUsesLisp <reinuseslisp@airmail.cc>
Date: Sat, 9 Jan 2021 03:30:07 -0300
Subject: shader: Initial recompiler work
---
.../frontend/maxwell/translate/impl/impl.cpp | 79 ++++++++++++++++++++++
1 file changed, 79 insertions(+)
create mode 100644 src/shader_recompiler/frontend/maxwell/translate/impl/impl.cpp
(limited to 'src/shader_recompiler/frontend/maxwell/translate/impl/impl.cpp')
diff --git a/src/shader_recompiler/frontend/maxwell/translate/impl/impl.cpp b/src/shader_recompiler/frontend/maxwell/translate/impl/impl.cpp
new file mode 100644
index 0000000000..7bc7ce9f29
--- /dev/null
+++ b/src/shader_recompiler/frontend/maxwell/translate/impl/impl.cpp
@@ -0,0 +1,79 @@
+// 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/frontend/ir/ir_emitter.h"
+#include "shader_recompiler/frontend/maxwell/translate/impl/impl.h"
+
+namespace Shader::Maxwell {
+
+IR::U32 TranslatorVisitor::X(IR::Reg reg) {
+ return ir.GetReg(reg);
+}
+
+void TranslatorVisitor::X(IR::Reg dest_reg, const IR::U32& value) {
+ ir.SetReg(dest_reg, value);
+}
+
+IR::U32 TranslatorVisitor::GetCbuf(u64 insn) {
+ union {
+ u64 raw;
+ BitField<20, 14, s64> offset;
+ BitField<34, 5, u64> binding;
+ } const cbuf{insn};
+ if (cbuf.binding >= 18) {
+ throw NotImplementedException("Out of bounds constant buffer binding {}", cbuf.binding);
+ }
+ if (cbuf.offset >= 0x10'000 || cbuf.offset < 0) {
+ throw NotImplementedException("Out of bounds constant buffer offset {}", cbuf.offset);
+ }
+ const IR::U32 binding{ir.Imm32(static_cast<u32>(cbuf.binding))};
+ const IR::U32 byte_offset{ir.Imm32(static_cast<u32>(cbuf.offset) * 4)};
+ return ir.GetCbuf(binding, byte_offset);
+}
+
+IR::U32 TranslatorVisitor::GetImm(u64 insn) {
+ union {
+ u64 raw;
+ BitField<20, 19, u64> value;
+ BitField<56, 1, u64> is_negative;
+ } const imm{insn};
+ const s32 positive_value{static_cast<s32>(imm.value)};
+ const s32 value{imm.is_negative != 0 ? -positive_value : positive_value};
+ return ir.Imm32(value);
+}
+
+void TranslatorVisitor::SetZFlag(const IR::U1& value) {
+ ir.SetZFlag(value);
+}
+
+void TranslatorVisitor::SetSFlag(const IR::U1& value) {
+ ir.SetSFlag(value);
+}
+
+void TranslatorVisitor::SetCFlag(const IR::U1& value) {
+ ir.SetCFlag(value);
+}
+
+void TranslatorVisitor::SetOFlag(const IR::U1& value) {
+ ir.SetOFlag(value);
+}
+
+void TranslatorVisitor::ResetZero() {
+ SetZFlag(ir.Imm1(false));
+}
+
+void TranslatorVisitor::ResetSFlag() {
+ SetSFlag(ir.Imm1(false));
+}
+
+void TranslatorVisitor::ResetCFlag() {
+ SetCFlag(ir.Imm1(false));
+}
+
+void TranslatorVisitor::ResetOFlag() {
+ SetOFlag(ir.Imm1(false));
+}
+
+} // namespace Shader::Maxwell
--
cgit v1.2.3-70-g09d2