MESS

Index: src/emu/cpu/i386/i386op32.c
===================================================================
--- src/emu/cpu/i386/i386op32.c (revision 15930)
+++ src/emu/cpu/i386/i386op32.c (working copy)
@@ -3472,9 +3472,23 @@
 {
        UINT32 ea;
        if( cpustate->segment_prefix ) {
-               ea = i386_translate(cpustate, cpustate->segment_override, REG32(EBX) + REG8(AL), 0 );
+               if(cpustate->address_prefix)
+               {
+                       ea = i386_translate(cpustate, cpustate->segment_override, REG16(BX) + REG8(AL), 0 );
+               }
+               else
+               {
+                       ea = i386_translate(cpustate, cpustate->segment_override, REG32(EBX) + REG8(AL), 0 );
+               }
        } else {
-               ea = i386_translate(cpustate, DS, REG32(EBX) + REG8(AL), 0 );
+               if(cpustate->address_prefix)
+               {
+                       ea = i386_translate(cpustate, DS, REG16(BX) + REG8(AL), 0 );
+               }
+               else
+               {
+                       ea = i386_translate(cpustate, DS, REG32(EBX) + REG8(AL), 0 );
+               }
        }
        REG8(AL) = READ8(cpustate,ea);
        CYCLES(cpustate,CYCLES_XLAT);