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authorameerj <52414509+ameerj@users.noreply.github.com>2021-03-01 06:18:30 +0100
committerameerj <52414509+ameerj@users.noreply.github.com>2021-07-23 03:51:22 +0200
commitbce0b1dcca4e83ab8bb6692e98d021ded5c0ad5f (patch)
treeba61ba9c8a959ee9e3e04e0b80cc1694bccdaa8e /src/shader_recompiler/frontend/maxwell/translate/impl
parentshader: Implement IMNMX (diff)
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Diffstat (limited to '')
-rw-r--r--src/shader_recompiler/frontend/maxwell/translate/impl/integer_compare.cpp83
-rw-r--r--src/shader_recompiler/frontend/maxwell/translate/impl/not_implemented.cpp16
2 files changed, 83 insertions, 16 deletions
diff --git a/src/shader_recompiler/frontend/maxwell/translate/impl/integer_compare.cpp b/src/shader_recompiler/frontend/maxwell/translate/impl/integer_compare.cpp
new file mode 100644
index 000000000..1f604b0ee
--- /dev/null
+++ b/src/shader_recompiler/frontend/maxwell/translate/impl/integer_compare.cpp
@@ -0,0 +1,83 @@
+// 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 ComparisonOp : u64 {
+ False,
+ LessThan,
+ Equal,
+ LessThanEqual,
+ GreaterThan,
+ NotEqual,
+ GreaterThanEqual,
+ True,
+};
+
+[[nodiscard]] IR::U1 CompareToZero(TranslatorVisitor& v, const IR::U32& operand,
+ ComparisonOp compare_op, bool is_signed) {
+ const IR::U32 zero{v.ir.Imm32(0)};
+ switch (compare_op) {
+ case ComparisonOp::False:
+ return v.ir.Imm1(false);
+ case ComparisonOp::LessThan:
+ return v.ir.ILessThan(operand, zero, is_signed);
+ case ComparisonOp::Equal:
+ return v.ir.IEqual(operand, zero);
+ case ComparisonOp::LessThanEqual:
+ return v.ir.ILessThanEqual(operand, zero, is_signed);
+ case ComparisonOp::GreaterThan:
+ return v.ir.IGreaterThan(operand, zero, is_signed);
+ case ComparisonOp::NotEqual:
+ return v.ir.INotEqual(operand, zero);
+ case ComparisonOp::GreaterThanEqual:
+ return v.ir.IGreaterThanEqual(operand, zero, is_signed);
+ case ComparisonOp::True:
+ return v.ir.Imm1(true);
+ default:
+ throw NotImplementedException("ICMP.CMP");
+ }
+}
+
+void ICMP(TranslatorVisitor& v, u64 insn, const IR::U32& src_a, const IR::U32& operand) {
+ union {
+ u64 insn;
+ BitField<0, 8, IR::Reg> dest_reg;
+ BitField<8, 8, IR::Reg> src_reg;
+ BitField<48, 1, u64> is_signed;
+ BitField<49, 3, ComparisonOp> compare_op;
+ } const icmp{insn};
+
+ const IR::U32 zero{v.ir.Imm32(0)};
+ const bool is_signed{icmp.is_signed != 0};
+ const IR::U1 cmp_result{CompareToZero(v, operand, icmp.compare_op, is_signed)};
+
+ const IR::U32 src_reg{v.X(icmp.src_reg)};
+ const IR::U32 result{v.ir.Select(cmp_result, src_reg, src_a)};
+
+ v.X(icmp.dest_reg, result);
+}
+} // Anonymous namespace
+
+void TranslatorVisitor::ICMP_reg(u64 insn) {
+ ICMP(*this, insn, GetReg20(insn), GetReg39(insn));
+}
+
+void TranslatorVisitor::ICMP_rc(u64 insn) {
+ ICMP(*this, insn, GetReg39(insn), GetCbuf(insn));
+}
+
+void TranslatorVisitor::ICMP_cr(u64 insn) {
+ ICMP(*this, insn, GetCbuf(insn), GetReg39(insn));
+}
+
+void TranslatorVisitor::ICMP_imm(u64 insn) {
+ ICMP(*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 615e3c3b5..8d4044ee8 100644
--- a/src/shader_recompiler/frontend/maxwell/translate/impl/not_implemented.cpp
+++ b/src/shader_recompiler/frontend/maxwell/translate/impl/not_implemented.cpp
@@ -389,22 +389,6 @@ void TranslatorVisitor::IADD3_imm(u64) {
ThrowNotImplemented(Opcode::IADD3_imm);
}
-void TranslatorVisitor::ICMP_reg(u64) {
- ThrowNotImplemented(Opcode::ICMP_reg);
-}
-
-void TranslatorVisitor::ICMP_rc(u64) {
- ThrowNotImplemented(Opcode::ICMP_rc);
-}
-
-void TranslatorVisitor::ICMP_cr(u64) {
- ThrowNotImplemented(Opcode::ICMP_cr);
-}
-
-void TranslatorVisitor::ICMP_imm(u64) {
- ThrowNotImplemented(Opcode::ICMP_imm);
-}
-
void TranslatorVisitor::IDE(u64) {
ThrowNotImplemented(Opcode::IDE);
}