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add -j option for setting 0x14A (region flag)

--- a/src/fix/main.c

+++ b/src/fix/main.c

@@ -23,6 +23,7 @@

 #define OPTF_RAMSIZE	0x040L

 #define OPTF_MBCTYPE	0x080L

 #define OPTF_GBCMODE	0x100L

+#define OPTF_JAPAN	0x200L

 unsigned long ulOptions;

@@ -55,6 +56,7 @@

 	printf("  -h\t\tThis text\n");

 	printf("  -d\t\tDebug: Don't change image\n");

 	printf("  -m<hx>\tChange RAM size of cartridge\n");

+	printf("  -j\tSet the non-Japanese region flag\n");

 	printf("  -p[<hx>]\tPad image to valid size\n"

 		"\t\tPads to 32/64/128/256/512kB as appropriate\n"

 		"\t\tAn optional hexadecimal pad value can be supplied (default is 0)");

@@ -256,6 +258,9 @@

 					FatalError("Invalid argument for option 'm'");

 				}

 				break;

+			case 'j':

+				ulOptions |= OPTF_JAPAN;

+				break;

 			case 'b':

 				ulOptions |= OPTF_MBCTYPE;

 				if (strlen(argv[argn] + 2) > 0 && strlen(argv[argn] + 2) <= 2) {

@@ -447,6 +452,19 @@

 			if (!(ulOptions & OPTF_QUIET)) {

 				printf("\tRAM size set to %#02X\n", ram_size);

+			}

+		}

+		/*

+		 * -j (Set region flag) option code

+		 */

+		if (ulOptions & OPTF_JAPAN) {

+			fflush(f);

+			fseek(f, 0x14A, SEEK_SET);

+			fputc(1, f);

+			fflush(f);

+

+			if (!(ulOptions & OPTF_QUIET)) {

+				printf("\tRegion code set to non-Japan\n");

 			}

 		}

 		/*