From 682be864fabe1a4789ee728ad37b5df9493abf6e Mon Sep 17 00:00:00 2001
From: morkt <muvluv.ru@gmail.com>
Date: Sat, 7 Nov 2015 00:14:03 +0400
Subject: [PATCH] (MMX): added paddb and pslld instructions.

---
 ArcFormats/ArcCommon.cs | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/ArcFormats/ArcCommon.cs b/ArcFormats/ArcCommon.cs
index edb3b808..0fed2853 100644
--- a/ArcFormats/ArcCommon.cs
+++ b/ArcFormats/ArcCommon.cs
@@ -408,6 +408,16 @@ namespace GameRes.Formats
 
     public static class MMX
     {
+        public static ulong PAddB (ulong x, ulong y)
+        {
+            ulong r = 0;
+            for (ulong mask = 0xFF; mask != 0; mask <<= 8)
+            {
+                r |= ((x & mask) + (y & mask)) & mask;
+            }
+            return r;
+        }
+
         public static ulong PAddW (ulong x, ulong y)
         {
             ulong mask = 0xffff;
@@ -428,6 +438,13 @@ namespace GameRes.Formats
             mask <<= 32;
             return r | ((x & mask) + (y & mask)) & mask;
         }
+
+        public static ulong PSllD (ulong x, int count)
+        {
+            ulong mask = 0xFFFFFFFFu << count;
+            mask |= mask << 32;
+            return (x << count) & mask;
+        }
     }
 
     public static class Dump