From b0c92b80b156e75fcc5eedbbb8370fedd18b5ac4 Mon Sep 17 00:00:00 2001
From: Subv <subv2112@gmail.com>
Date: Wed, 4 Jul 2018 15:25:48 -0500
Subject: GPU: Implemented the IMNMX shader instruction.

It's similar to the FMNMX instruction but it works on integers.
---
 src/video_core/renderer_opengl/gl_shader_decompiler.cpp | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

(limited to 'src/video_core/renderer_opengl/gl_shader_decompiler.cpp')

diff --git a/src/video_core/renderer_opengl/gl_shader_decompiler.cpp b/src/video_core/renderer_opengl/gl_shader_decompiler.cpp
index ec9956edb..9d43d0fb1 100644
--- a/src/video_core/renderer_opengl/gl_shader_decompiler.cpp
+++ b/src/video_core/renderer_opengl/gl_shader_decompiler.cpp
@@ -1127,6 +1127,20 @@ private:
                 WriteLogicOperation(instr.gpr0, instr.alu.lop.operation, op_a, op_b);
                 break;
             }
+            case OpCode::Id::IMNMX_C:
+            case OpCode::Id::IMNMX_R:
+            case OpCode::Id::IMNMX_IMM: {
+                ASSERT_MSG(instr.imnmx.exchange == Tegra::Shader::IMinMaxExchange::None,
+                           "Unimplemented");
+                std::string condition =
+                    GetPredicateCondition(instr.imnmx.pred, instr.imnmx.negate_pred != 0);
+                std::string parameters = op_a + ',' + op_b;
+                regs.SetRegisterToInteger(instr.gpr0, instr.imnmx.is_signed, 0,
+                                          '(' + condition + ") ? min(" + parameters + ") : max(" +
+                                              parameters + ')',
+                                          1, 1);
+                break;
+            }
             default: {
                 LOG_CRITICAL(HW_GPU, "Unhandled ArithmeticInteger instruction: {}",
                              opcode->GetName());
-- 
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