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diff --git a/source/mupen64plus-video-arachnoid/src/Assembler/assembler.h b/source/mupen64plus-video-arachnoid/src/Assembler/assembler.h
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+/******************************************************************************
+ * Arachnoid Graphics Plugin for Mupen64Plus
+ * http://bitbucket.org/wahrhaft/mupen64plus-video-arachnoid/
+ *
+ * Copyright (C) 2009 Jon Ring
+ * Copyright (C) 2007 Kristofer Karlsson, Rickard Niklasson
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ *****************************************************************************/
+
+#ifndef ASSEMBLER_H_
+#define ASSEMBLER_H_
+
+#ifndef WIN32
+#include <cstring>
+#endif
+// Swap bytes from 80 37 12 40
+// to              40 12 37 80
+// dwLen must be a multiple of 4
+inline void swapRomHeaderBytes(void *v, unsigned int dwLen)
+{
+    int *b = (int*)v;
+    dwLen /= 4;
+    for (unsigned int i = 0; i < dwLen; ++i)
+    {
+        int tmp = b[i];
+        b[i] = ((tmp & 0xff000000) >> 24) | ((tmp & 0x00ff0000) >>  8) |               \
+               ((tmp & 0x0000ff00) <<  8) | ((tmp & 0x000000ff) << 24);
+    }
+}
+
+
+inline unsigned short swapword( unsigned short value )
+{
+    return (value >> 8) | (value << 8);
+}
+
+inline void UnswapCopy( void *src, void *dest, unsigned int numBytes )
+{
+#ifdef WIN32_ASM
+    __asm
+    {
+        mov        ecx, 0
+        mov        esi, dword ptr [src]
+        mov        edi, dword ptr [dest]
+
+        mov        ebx, esi
+        and        ebx, 3            // ebx = number of leading bytes
+
+        cmp        ebx, 0
+         jz        StartDWordLoop
+        neg        ebx
+        add        ebx, 4
+
+        cmp        ebx, [numBytes]
+        jle        NotGreater
+        mov        ebx, [numBytes]
+NotGreater:
+        mov        ecx, ebx
+        xor        esi, 3
+LeadingLoop:                // Copies leading bytes, in reverse order (un-swaps)
+        mov        al, byte ptr [esi]
+        mov        byte ptr [edi], al
+        sub        esi, 1
+        add        edi, 1
+        loop       LeadingLoop
+        add        esi, 5
+
+StartDWordLoop:
+        mov        ecx, dword ptr [numBytes]
+        sub        ecx, ebx        // Don't copy what's already been copied
+
+        mov        ebx, ecx
+        and        ebx, 3
+//        add        ecx, 3            // Round up to nearest dword
+        shr        ecx, 2
+
+        cmp        ecx, 0            // If there's nothing to do, don't do it
+        jle        StartTrailingLoop
+
+        // Copies from source to destination, bswap-ing first
+DWordLoop:
+        mov        eax, dword ptr [esi]
+        bswap      eax
+        mov        dword ptr [edi], eax
+        add        esi, 4
+        add        edi, 4
+        loop    DWordLoop
+StartTrailingLoop:
+        cmp        ebx, 0
+        jz         Done
+        mov        ecx, ebx
+        xor        esi, 3
+
+TrailingLoop:
+        mov        al, byte ptr [esi]
+        mov        byte ptr [edi], al
+        sub        esi, 1
+        add        edi, 1
+        loop       TrailingLoop
+Done:
+    }
+#else
+
+    long long beginOffset = (long long)src & 3;
+    char *readPtr = (char*)src - beginOffset;
+    char *writePtr = (char*)dest;
+    
+    int swapOffset = beginOffset;
+    for (unsigned int i = 0; i < numBytes; ++i)
+    {
+        *writePtr = readPtr[3 - swapOffset];
+        ++writePtr;
+        ++swapOffset;
+        if (swapOffset > 3)
+        {
+            swapOffset = 0;
+            readPtr += 4;
+        }
+    }
+
+#endif
+}
+
+inline void DWordInterleave( void *mem, unsigned int numDWords )
+{
+#ifdef WIN32_ASM
+    __asm {
+        mov        esi, dword ptr [mem]
+        mov        edi, dword ptr [mem]
+        add        edi, 4
+        mov        ecx, dword ptr [numDWords]
+DWordInterleaveLoop:
+        mov        eax, dword ptr [esi]
+        mov        ebx, dword ptr [edi]
+        mov        dword ptr [esi], ebx
+        mov        dword ptr [edi], eax
+        add        esi, 8
+        add        edi, 8
+        loop       DWordInterleaveLoop
+    }
+#else
+    int *m = (int*)mem;
+    for (unsigned int i = 0; i < numDWords; ++i)
+    {
+        int tmp = m[2 * i];
+        m[2 * i] = m[2 * i + 1];
+        m[2 * i + 1] = tmp;
+    }
+#endif
+}
+
+inline void QWordInterleave( void *mem, unsigned int numDWords )
+{
+#ifdef WIN32_ASM
+    __asm
+    {
+    // Interleave the line on the qword
+        mov        esi, dword ptr [mem]
+        mov        edi, dword ptr [mem]
+        add        edi, 8
+        mov        ecx, dword ptr [numDWords]
+        shr        ecx, 1
+QWordInterleaveLoop:
+        mov        eax, dword ptr [esi]
+        mov        ebx, dword ptr [edi]
+        mov        dword ptr [esi], ebx
+        mov        dword ptr [edi], eax
+        add        esi, 4
+        add        edi, 4
+        mov        eax, dword ptr [esi]
+        mov        ebx, dword ptr [edi]
+        mov        dword ptr [esi], ebx
+        mov        dword ptr [edi], eax
+        add        esi, 12
+        add        edi, 12
+        loop       QWordInterleaveLoop
+    }
+#else
+    long long *m = (long long*)mem;
+    for (unsigned int i = 0; i < numDWords / 2; ++i)
+    {
+        long long tmp = m[2 * i];
+        m[2 * i] = m[2 * i + 1];
+        m[2 * i + 1] = tmp;
+    }
+#endif
+}
+
+const unsigned char Five2Eight[32] =
+{
+      0, // 00000 = 00000000
+      8, // 00001 = 00001000
+     16, // 00010 = 00010000
+     25, // 00011 = 00011001
+     33, // 00100 = 00100001
+     41, // 00101 = 00101001
+     49, // 00110 = 00110001
+     58, // 00111 = 00111010
+     66, // 01000 = 01000010
+     74, // 01001 = 01001010
+     82, // 01010 = 01010010
+     90, // 01011 = 01011010
+     99, // 01100 = 01100011
+    107, // 01101 = 01101011
+    115, // 01110 = 01110011
+    123, // 01111 = 01111011
+    132, // 10000 = 10000100
+    140, // 10001 = 10001100
+    148, // 10010 = 10010100
+    156, // 10011 = 10011100
+    165, // 10100 = 10100101
+    173, // 10101 = 10101101
+    181, // 10110 = 10110101
+    189, // 10111 = 10111101
+    197, // 11000 = 11000101
+    206, // 11001 = 11001110
+    214, // 11010 = 11010110
+    222, // 11011 = 11011110
+    230, // 11100 = 11100110
+    239, // 11101 = 11101111
+    247, // 11110 = 11110111
+    255  // 11111 = 11111111
+};
+
+const unsigned char Four2Eight[16] = 
+{
+      0, // 0000 = 00000000
+     17, // 0001 = 00010001
+     34, // 0010 = 00100010
+     51, // 0011 = 00110011
+     68, // 0100 = 01000100
+     85, // 0101 = 01010101
+    102, // 0110 = 01100110
+    119, // 0111 = 01110111
+    136, // 1000 = 10001000
+    153, // 1001 = 10011001
+    170, // 1010 = 10101010
+    187, // 1011 = 10111011
+    204, // 1100 = 11001100
+    221, // 1101 = 11011101
+    238, // 1110 = 11101110
+    255  // 1111 = 11111111
+};
+
+const unsigned char Three2Four[8] = 
+{
+     0, // 000 = 0000
+     2, // 001 = 0010
+     4, // 010 = 0100
+     6, // 011 = 0110
+     9, // 100 = 1001
+    11, // 101 = 1011
+    13, // 110 = 1101
+    15, // 111 = 1111
+};
+
+const unsigned char Three2Eight[8] = 
+{
+      0, // 000 = 00000000
+     36, // 001 = 00100100
+     73, // 010 = 01001001
+    109, // 011 = 01101101
+    146, // 100 = 10010010
+    182, // 101 = 10110110
+    219, // 110 = 11011011
+    255, // 111 = 11111111
+};
+const unsigned char Two2Eight[4] = 
+{
+      0, // 00 = 00000000
+     85, // 01 = 01010101
+    170, // 10 = 10101010
+    255  // 11 = 11111111
+};
+
+const unsigned char One2Four[2] = 
+{
+     0, // 0 = 0000
+    15, // 1 = 1111
+};
+
+const unsigned char One2Eight[2] = 
+{
+      0, // 0 = 00000000
+    255, // 1 = 11111111
+};
+
+inline unsigned short RGBA8888_RGBA4444( unsigned int color )
+{
+    return ((color & 0xF0000000) >> 28) | ((color & 0x00F00000) >> 16) |
+           ((color & 0x0000F000) >>  4) | ((color & 0x000000F0) << 8);
+}
+
+inline unsigned int RGBA5551_RGBA8888( unsigned short color )
+{
+    int rgba;
+    char *p = (char*)&rgba;
+    color = (color >> 8) | (color << 8);
+    p[3] = One2Eight[color & 1];
+    p[2] = Five2Eight[color >> 1 & 0x1f];
+    p[1] = Five2Eight[color >> 6 & 0x1f];
+    p[0] = Five2Eight[color >> 11 & 0x1f];
+    return rgba;
+}
+
+// Just swaps the word
+inline unsigned short RGBA5551_RGBA5551( unsigned short color )
+{
+    return (color >> 8) | (color << 8);
+}
+
+inline unsigned int IA88_RGBA8888( unsigned short color )
+{
+    return (color & 0xFF) | ((color & 0xFF) << 8) | (color << 16);
+}
+
+inline unsigned short IA88_RGBA4444( unsigned short color )
+{
+    unsigned char b = color & 0xf0;
+    return (color >> 12) | b | (b << 4) | (b << 8);
+}
+
+inline unsigned short IA44_RGBA4444( unsigned char color )
+{
+    unsigned char b = color >> 4;
+    return color | (b << 8) | (b << 12);
+}
+
+inline unsigned int IA44_RGBA8888( unsigned char color )
+{
+    unsigned char b1 = color >> 4;
+    unsigned char b2 = color & 0x0f;
+    return b1 | (b1 << 4) | (b1 << 8) | (b1 << 12) | (b1 << 16) | (b1 << 20) | (b2 << 24) | (b2 << 28);
+}
+
+inline unsigned short IA31_RGBA4444( unsigned char color )
+{
+    unsigned char t = Three2Four[color >> 1];
+    return One2Four[color & 1] | (t << 4) | (t << 8) | (t << 12); 
+}
+
+inline unsigned int IA31_RGBA8888( unsigned char color )
+{
+    unsigned char t = Three2Eight[color >> 1];
+    return t | (t << 8) | (t << 16) | (One2Eight[color & 1] << 24);
+}
+
+inline unsigned short I8_RGBA4444( unsigned char color )
+{
+    color &= 0xf0;
+    return (color >> 4) | color | (color << 4) | (color << 8);
+}
+
+inline unsigned int I8_RGBA8888( unsigned char color )
+{
+    return color | (color << 8) | (color << 16) | (color << 24);
+}
+
+inline unsigned short I4_RGBA4444( unsigned char color )
+{
+    color &= 0x0f;
+    return color | (color << 4) | (color << 8) | (color << 12);
+}
+
+inline unsigned int I4_RGBA8888( unsigned char color )
+{
+    unsigned char b = Four2Eight[color];
+    return b | (b << 8) | (b << 16) | (b << 24);
+}
+
+#endif