--- trunk/src/file.c	2007/10/08 16:20:58	32
+++ trunk/src/file.c	2007/10/08 16:21:17	34
@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2003-2006  Anders Gavare.  All rights reserved.
+ *  Copyright (C) 2003-2007  Anders Gavare.  All rights reserved.
  *
  *  Redistribution and use in source and binary forms, with or without
  *  modification, are permitted provided that the following conditions are met:
@@ -25,7 +25,7 @@
  *  SUCH DAMAGE.
  *
  *
- *  $Id: file.c,v 1.135 2006/10/27 04:21:15 debug Exp $
+ *  $Id: file.c,v 1.140 2007/02/10 14:29:54 debug Exp $
  *
  *  This file contains functions which load executable images into (emulated)
  *  memory. File formats recognized so far are:
@@ -1405,7 +1405,7 @@
 			ok = 1;
 		}
 		break;
-	case ARCH_AVR32:
+	/*  case ARCH_AVR32:
 		switch (emachine) {
 		case 6317:
 			ok = 1;
@@ -1428,7 +1428,7 @@
 		case EM_IA_64:
 			ok = 1;
 		}
-		break;
+		break;  */
 	case ARCH_M68K:
 		switch (emachine) {
 		case EM_68K:
@@ -1462,7 +1462,7 @@
 			ok = 1;
 		}
 		break;
-	case ARCH_X86:
+	/*  case ARCH_X86:
 		switch (emachine) {
 		case EM_386:
 		case EM_486:
@@ -1474,7 +1474,7 @@
 			ok = 1;
 			break;
 		}
-		break;
+		break;  */
 	default:
 		fatal("file.c: INTERNAL ERROR: Unimplemented arch!\n");
 	}
@@ -2086,6 +2086,31 @@
 		    "floppy image. Maybe you forgot the\n-d switch?\n");
 
 	/*
+	 *  Ugly hack for Dreamcast:  When booting from a Dreamcast CDROM
+	 *  image, a temporary file is extracted into /tmp/gxemul.*, but this
+	 *  is a "scrambled" raw binary. This code unscrambles it, and loads
+	 *  it as a raw binary.
+	 */
+	if (machine->machine_type == MACHINE_DREAMCAST &&
+	    strncmp(filename, "/tmp/gxemul.", 12) == 0) {
+		char *tmp_filename = malloc(strlen(filename) + 100);
+		snprintf(tmp_filename, strlen(filename) + 100,
+		    "%s.descrambled", filename);
+		debug("descrambling into %s\n", tmp_filename);
+		dreamcast_descramble(filename, tmp_filename);
+
+		snprintf(tmp_filename, strlen(filename) + 100,
+		    "0x8c010000:%s.descrambled", filename);
+		debug("loading descrambled Dreamcast binary\n");
+		file_load_raw(machine, mem, tmp_filename, entrypointp);
+		free(tmp_filename);
+
+		/*  Hack: Start a "boot from CDROM" sequence:  */
+		*entrypointp = 0x8c000080;
+		goto ret;
+	}
+
+	/*
 	 *  Last resort:  symbol definitions from nm (or nm -S):
 	 *
 	 *  If the buf contains typical 'binary' characters, then print