$OpenBSD: patch-mc68k_memory_c,v 1.1 2010/05/23 17:39:14 espie Exp $
--- mc68k/memory.c.orig	Sun May 23 19:36:04 2010
+++ mc68k/memory.c	Sun May 23 19:37:33 2010
@@ -340,6 +340,7 @@ UWORD *rom_xlate(CPTR addr)
 static int
 verify_entrypoint(const void *rom)
 {
+    char *rp = rom;
     const unsigned char _bootsign[] = { 0x4e, 0xfa, 0x00, 0x00, 'b', 'o', 'o', 't',
 			       0x27, 0x10, 0xff };
     const unsigned char _bootmask[] = { 0xff, 0xff, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff,
@@ -348,7 +349,7 @@ verify_entrypoint(const void *rom)
     const unsigned char *bootsign = _bootsign, *bootmask = _bootmask;
     
     while ((*bootsign & *bootmask) == *bootsign)
-	if ((*((char *)rom)++ & *bootmask++) != *bootsign++)
+	if ((*(rp)++ & *bootmask++) != *bootsign++)
 	    return 0;
 
     return 1;
@@ -446,7 +447,7 @@ static int load_rom(const char *dir, const char *romfi
 	  return PILOTCPU_ERROR_LOADING_ROM;
 
 	memcpy(((char *)rommemory) - offset, rommemory, 256);
-	((char *)rommemory) -= offset;
+	rommemory = (char *)rommemory - offset;
       }
     }
   }