1 files changed, 62 insertions, 0 deletions
diff --git a/src/shader_recompiler/frontend/maxwell/translate/impl/floating_point_min_max.cpp b/src/shader_recompiler/frontend/maxwell/translate/impl/floating_point_min_max.cpp
new file mode 100644
index 000000000..c0d6ee5af
--- /dev/null
+++ b/src/shader_recompiler/frontend/maxwell/translate/impl/floating_point_min_max.cpp
@@ -0,0 +1,62 @@
+// 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 FMNMX(TranslatorVisitor& v, u64 insn, const IR::F32& src_b) {
+    union {
+        u64 insn;
+        BitField<0, 8, IR::Reg> dest_reg;
+        BitField<8, 8, IR::Reg> src_a_reg;
+        BitField<39, 3, IR::Pred> pred;
+        BitField<42, 1, u64> neg_pred;
+        BitField<44, 1, u64> ftz;
+        BitField<45, 1, u64> negate_b;
+        BitField<46, 1, u64> abs_a;
+        BitField<47, 1, u64> cc;
+        BitField<48, 1, u64> negate_a;
+        BitField<49, 1, u64> abs_b;
+    } const fmnmx{insn};
+
+    if (fmnmx.cc) {
+        throw NotImplementedException("FMNMX CC");
+    }
+
+    const IR::U1 pred{v.ir.GetPred(fmnmx.pred)};
+    const IR::F32 op_a{v.ir.FPAbsNeg(v.F(fmnmx.src_a_reg), fmnmx.abs_a != 0, fmnmx.negate_a != 0)};
+    const IR::F32 op_b{v.ir.FPAbsNeg(src_b, fmnmx.abs_b != 0, fmnmx.negate_b != 0)};
+
+    const IR::FpControl control{
+        .no_contraction = false,
+        .rounding = IR::FpRounding::DontCare,
+        .fmz_mode = (fmnmx.ftz != 0 ? IR::FmzMode::FTZ : IR::FmzMode::None),
+    };
+    IR::F32 max{v.ir.FPMax(op_a, op_b, control)};
+    IR::F32 min{v.ir.FPMin(op_a, op_b, control)};
+
+    if (fmnmx.neg_pred != 0) {
+        std::swap(min, max);
+    }
+
+    v.F(fmnmx.dest_reg, IR::F32{v.ir.Select(pred, min, max)});
+}
+} // Anonymous namespace
+
+void TranslatorVisitor::FMNMX_reg(u64 insn) {
+    FMNMX(*this, insn, GetFloatReg20(insn));
+}
+
+void TranslatorVisitor::FMNMX_cbuf(u64 insn) {
+    FMNMX(*this, insn, GetFloatCbuf(insn));
+}
+
+void TranslatorVisitor::FMNMX_imm(u64 insn) {
+    FMNMX(*this, insn, GetFloatImm20(insn));
+}
+
+} // namespace Shader::Maxwell