From 894459fcd7797b1e38f2448797d83856d11b6e23 Mon Sep 17 00:00:00 2001
From: LDj3SNuD <35856442+LDj3SNuD@users.noreply.github.com>
Date: Sun, 14 Oct 2018 04:35:16 +0200
Subject: Add Fmls_Se, Fmulx_Se/Ve, Smov_S Inst.; Opt. Clz/Clz_V, Cnt_V, Shl_V,
 S/Ushr_V, S/Usra_V Inst.; Add 11 Tests. Some fixes. (#449)

* Update AOpCodeTable.cs

* Update AInstEmitSimdMove.cs

* Update AInstEmitSimdArithmetic.cs

* Update AInstEmitSimdShift.cs

* Update ASoftFallback.cs

* Update ASoftFloat.cs

* Update AOpCodeSimdRegElemF.cs

* Update CpuTestSimdIns.cs

* Update CpuTestSimdRegElem.cs

* Create CpuTestSimdRegElemF.cs

* Update CpuTestSimd.cs

* Update CpuTestSimdReg.cs

* Superseded Fmul_Se Test. Nit.

* Address PR feedback.

* Address PR feedback.

* Update AInstEmitSimdArithmetic.cs

* Update ASoftFallback.cs

* Update AInstEmitAlu.cs

* Update AInstEmitSimdShift.cs
---
 ChocolArm64/Decoder/AOpCodeSimdRegElemF.cs | 27 +++++++++++++++++++--------
 1 file changed, 19 insertions(+), 8 deletions(-)

(limited to 'ChocolArm64/Decoder/AOpCodeSimdRegElemF.cs')

diff --git a/ChocolArm64/Decoder/AOpCodeSimdRegElemF.cs b/ChocolArm64/Decoder/AOpCodeSimdRegElemF.cs
index e61d7093..e0670def 100644
--- a/ChocolArm64/Decoder/AOpCodeSimdRegElemF.cs
+++ b/ChocolArm64/Decoder/AOpCodeSimdRegElemF.cs
@@ -8,15 +8,26 @@ namespace ChocolArm64.Decoder
 
         public AOpCodeSimdRegElemF(AInst Inst, long Position, int OpCode) : base(Inst, Position, OpCode)
         {
-            if ((Size & 1) != 0)
+            switch ((OpCode >> 21) & 3) // sz:L
             {
-                Index = (OpCode >> 11) & 1;
-            }
-            else
-            {
-                Index = (OpCode >> 21) & 1 |
-                        (OpCode >> 10) & 2;
+                case 0: // H:0
+                    Index = (OpCode >> 10) & 2; // 0, 2
+
+                    break;
+
+                case 1: // H:1
+                    Index = (OpCode >> 10) & 2;
+                    Index++; // 1, 3
+
+                    break;
+
+                case 2: // H
+                    Index = (OpCode >> 11) & 1; // 0, 1
+
+                    break;
+
+                default: Emitter = AInstEmit.Und; return;
             }
         }
     }
-}
\ No newline at end of file
+}
-- 
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