From a6dd577d0265179d766c93e375ad5f1e36b8db60 Mon Sep 17 00:00:00 2001
From: tech4me <guiwanglong@gmail.com>
Date: Fri, 24 Aug 2018 09:15:43 -0700
Subject: Shaders: Implemented IADD3

---
 src/video_core/engines/shader_bytecode.h | 24 +++++++++++++++++++++++-
 1 file changed, 23 insertions(+), 1 deletion(-)

(limited to 'src/video_core/engines')

diff --git a/src/video_core/engines/shader_bytecode.h b/src/video_core/engines/shader_bytecode.h
index 625ecdfcd..96b745db8 100644
--- a/src/video_core/engines/shader_bytecode.h
+++ b/src/video_core/engines/shader_bytecode.h
@@ -213,6 +213,18 @@ enum class XmadMode : u64 {
     CBcc = 4,
 };
 
+enum class IAdd3Mode : u64 {
+    None = 0,
+    RightShift = 1,
+    LeftShift = 2,
+};
+
+enum class IAdd3Height : u64 {
+    None = 0,
+    LowerHalfWord = 1,
+    UpperHalfWord = 2,
+};
+
 enum class FlowCondition : u64 {
     Always = 0xF,
     Fcsm_Tr = 0x1C, // TODO(bunnei): What is this used for?
@@ -338,6 +350,16 @@ union Instruction {
         BitField<48, 1, u64> is_signed;
     } imnmx;
 
+    union {
+        BitField<31, 2, IAdd3Height> height_c;
+        BitField<33, 2, IAdd3Height> height_b;
+        BitField<35, 2, IAdd3Height> height_a;
+        BitField<37, 2, IAdd3Mode> mode;
+        BitField<49, 1, u64> neg_c;
+        BitField<50, 1, u64> neg_b;
+        BitField<51, 1, u64> neg_a;
+    } iadd3;
+
     union {
         BitField<54, 1, u64> saturate;
         BitField<56, 1, u64> negate_a;
@@ -636,7 +658,7 @@ public:
         IADD_C,
         IADD_R,
         IADD_IMM,
-        IADD3_C,
+        IADD3_C, // Add 3 Integers
         IADD3_R,
         IADD3_IMM,
         IADD32I,
-- 
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