From 518a2bd2060a5c1e6b9acb987439e0009d74fb43 Mon Sep 17 00:00:00 2001
From: ReinUsesLisp <reinuseslisp@airmail.cc>
Date: Mon, 17 Dec 2018 22:01:23 -0300
Subject: [PATCH] shader_decode: Implement IMNMX
---
.../shader/decode/arithmetic_integer.cpp | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff --git a/src/video_core/shader/decode/arithmetic_integer.cpp b/src/video_core/shader/decode/arithmetic_integer.cpp
index d494af736f..dbdcebbb4b 100644
--- a/src/video_core/shader/decode/arithmetic_integer.cpp
+++ b/src/video_core/shader/decode/arithmetic_integer.cpp
@@ -79,6 +79,22 @@ u32 ShaderIR::DecodeArithmeticInteger(BasicBlock& bb, u32 pc) {
instr.alu.lop.pred_result_mode, instr.alu.lop.pred48);
break;
}
+ case OpCode::Id::IMNMX_C:
+ case OpCode::Id::IMNMX_R:
+ case OpCode::Id::IMNMX_IMM: {
+ UNIMPLEMENTED_IF(instr.imnmx.exchange != Tegra::Shader::IMinMaxExchange::None);
+ UNIMPLEMENTED_IF_MSG(instr.generates_cc,
+ "Condition codes generation in IMNMX is not implemented");
+
+ const bool is_signed = instr.imnmx.is_signed;
+
+ const Node condition = GetPredicate(instr.imnmx.pred, instr.imnmx.negate_pred != 0);
+ const Node min = SignedOperation(OperationCode::IMin, is_signed, NO_PRECISE, op_a, op_b);
+ const Node max = SignedOperation(OperationCode::IMax, is_signed, NO_PRECISE, op_a, op_b);
+ const Node value = Operation(OperationCode::Select, NO_PRECISE, condition, min, max);
+ SetRegister(bb, instr.gpr0, value);
+ break;
+ }
default:
UNIMPLEMENTED_MSG("Unhandled ArithmeticInteger instruction: {}", opcode->get().GetName());
}
--
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