diff --git a/src/sys/graphics/objgfx30.cpp b/src/sys/graphics/objgfx30.cpp
index f3d10c8..776a662 100755
--- a/src/sys/graphics/objgfx30.cpp
+++ b/src/sys/graphics/objgfx30.cpp
@@ -117,23 +117,47 @@
   switch (BPP) {
   case 8:
     asm(
-        "movl	$256,%%ecx        \n"
-        "movl	$256*3+1, %%ebx   \n"
-        "xorl	%%eax, %%eax      \n"
-    "lop:                         \n"
-        "pushl	%%eax             \n"
-        "movb	(%%esi), %%al     \n"
-        "incl	%%esi             \n"
-        "subb	%1, %%al          \n"
-        "popl	%%eax             \n"
-        "decl	%%ecx             \n"
-        "jcxz	lop               \n"
-        :
-        :"S"(pal), "g"(red) 
-        :"eax","ecx"
-       ); // asm
+      "movl    $256,%%ecx     \n"
+      "movl    $256*3+1,%%ebx \n"
+      "xor     %%eax,%%eax    \n"
+      "lop:                   \n"
+      "  pushl %%eax          \n"
+      "  mov   (%%esi),%%al   \n"
+      "  inc   %%esi          \n"
+      "  sub   %1,%%al        \n"
+      "  jns   abs1           \n"
+      "  neg   %%al           \n"
+      "abs1:                  \n"
+      "  movl   %%eax,%%edi   \n"
+      "  mov   (%%esi),%%al   \n"
+      "  inc   %%esi          \n"
+      "  sub   %2,%%al        \n"
+      "  jns   abs2           \n"
+      "  neg   %%al           \n"
+      "abs2:                  \n"
+      "  add   %%eax,%%edi    \n"
+      "  mov   (%%esi),%%al   \n"
+      "  inc   %%esi          \n"
+      "  sub   %3,%%al        \n"
+      "  jns   abs3           \n"
+      "  neg   %%al           \n"
+      "abs3:                  \n"
+      "  add   %%eax,%%edi    \n"
+      "  pop   %%eax          \n"
+      "  cmp   %%ebx,%%edi    \n"
+      "  jae   no_good_match  \n"
+      "  movl  %%edi,%%ebx    \n"
+      "no_good_match:         \n"
+      "  inc   %%eax          \n"
+      "  dec   %%ecx          \n"
+      "  jnz   lop            \n"
+      : 
+      : "S" (pal), "g" (red), "g" (green), "g" (blue)
+      );
+      asm("": "=a" (lastclr));
     break;
   } // switch
+  //asm("": "=a" (lastclr));
   return lastclr;
 } // TGfx0::RGB