shithub: rgbds

Download patch

ref: 05be8e00113ef07aabf8a5eeb1ef98cab6a8aaec
parent: b1739d95a59369c4827955d91b91516c3f7671a4
author: Anthony J. Bentley <[email protected]>
date: Wed Dec 22 08:19:37 EST 2010 

Delete rgbfix, to be replaced with a freely-licensed version


--- a/src/fix/main.c
+++ b/src/fix/main.c
@@ -1,622 +1,34 @@
 /*
- * RGBFix : Perform various tasks on a Gameboy image-file
+ * Copyright © 2010 Anthony J. Bentley <[email protected]>
  *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
 #include <err.h>
-#include <errno.h>
-#include <stdarg.h>
 #include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sysexits.h>
-#include <unistd.h>
 
-#include "asmotor.h"
-
-/*
- * Option defines
- *
- */
-
-#define OPTF_DEBUG	0x001L
-#define OPTF_PAD	0x002L
-#define OPTF_VALIDATE	0x004L
-#define OPTF_TITLE	0x008L
-#define OPTF_QUIET	0x020L
-#define OPTF_RAMSIZE	0x040L
-#define OPTF_MBCTYPE	0x080L
-#define OPTF_GBCMODE	0x100L
-#define OPTF_JAPAN	0x200L
-#define OPTF_SGBMODE	0x400L
-#define OPTF_NLICENSEE	0x800L
-
-unsigned long ulOptions;
-
-/*
- * Misc. variables
- *
- */
-
-unsigned char NintendoChar[48] = {
-	0xCE, 0xED, 0x66, 0x66, 0xCC, 0x0D, 0x00, 0x0B,
-	0x03, 0x73, 0x00, 0x83, 0x00, 0x0C, 0x00, 0x0D,
-	0x00, 0x08, 0x11, 0x1F, 0x88, 0x89, 0x00, 0x0E,
-	0xDC, 0xCC, 0x6E, 0xE6, 0xDD, 0xDD, 0xD9, 0x99,
-	0xBB, 0xBB, 0x67, 0x63, 0x6E, 0x0E, 0xEC, 0xCC,
-	0xDD, 0xDC, 0x99, 0x9F, 0xBB, 0xB9, 0x33, 0x3E,
-};
-/*
- * Misc. routines
- *
- */
-
-static void usage(void)
-{
-	printf("RGBFix v" RGBFIX_VERSION
-	    " (part of ASMotor " ASMOTOR_VERSION ")\n\n");
-
-	printf("usage: rgbfix [-Ccdjqsv] [-m mbc_type] [-k licensee_str] [-p pad_value]\n");
-	printf("\t    [-r ram_size] [-t title_str] image[.gb]\n");
-
-	exit(EX_USAGE);
-}
-
-long int 
-FileSize(FILE * f)
-{
-	long prevpos;
-	long r;
-
-	fflush(f);
-	prevpos = ftell(f);
-	fseek(f, 0, SEEK_END);
-	r = ftell(f);
-	fseek(f, prevpos, SEEK_SET);
-	return (r);
-}
-
-int 
-FileExists(char *s)
-{
-	FILE *f;
-
-	if ((f = fopen(s, "rb")) != NULL) {
-		fclose(f);
-		return (1);
-	} else
-		return (0);
-}
-/*
-0147       Cartridge type:
-           0 - ROM ONLY                12 - ROM+MBC3+RAM
-           1 - ROM+MBC1                13 - ROM+MBC3+RAM+BATT
-           2 - ROM+MBC1+RAM            19 - ROM+MBC5
-           3 - ROM+MBC1+RAM+BATT       1A - ROM+MBC5+RAM
-           5 - ROM+MBC2                1B - ROM+MBC5+RAM+BATT
-           6 - ROM+MBC2+BATTERY        1C - ROM+MBC5+RUMBLE
-           8 - ROM+RAM                 1D - ROM+MBC5+RUMBLE+SRAM
-           9 - ROM+RAM+BATTERY         1E - ROM+MBC5+RUMBLE+SRAM+BATT
-           B - ROM+MMM01               1F - Pocket Camera
-           C - ROM+MMM01+SRAM          FD - Bandai TAMA5
-           D - ROM+MMM01+SRAM+BATT     FE - Hudson HuC-3
-           F - ROM+MBC3+TIMER+BATT     FF - Hudson HuC-1
-          10 - ROM+MBC3+TIMER+RAM+BATT
-          11 - ROM+MBC3
-*/
-char *
-MBC_String(unsigned char mbc_type)
-{
-	switch (mbc_type) {
-		case 0x00:
-			return "ROM ONLY";
-		case 0x01:
-			return "ROM+MBC1";
-		case 0x02:
-			return "ROM+MBC1+RAM";
-		case 0x03:
-			return "ROM+MBC1+RAM+BATTERY";
-		case 0x05:
-			return "ROM+MBC2";
-		case 0x06:
-			return "ROM+MBC2+BATTERY";
-		case 0x08:
-			return "ROM+RAM";
-		case 0x09:
-			return "ROM+RAM+BATTERY";
-		case 0x0B:
-			return "ROM+MMM01";
-		case 0x0C:
-			return "ROM+MMM01+SRAM";
-		case 0x0D:
-			return "ROM+MMM01+SRAM+BATTERY";
-		case 0x0F:
-			return "ROM+MBC3+TIMER+BATTERY";
-		case 0x10:
-			return "ROM+MBC3+TIMER+RAM+BATTERY";
-		case 0x11:
-			return "ROM+MBC3";
-		case 0x12:
-			return "ROM+MBC3+RAM";
-		case 0x13:
-			return "ROM+MBC3+RAM+BATTERY";
-		case 0x19:
-			return "ROM+MBC5";
-		case 0x1A:
-			return "ROM+MBC5+RAM";
-		case 0x1B:
-			return "ROM+MBC5+RAM+BATTERY";
-		case 0x1C:
-			return "ROM+MBC5+RUMBLE";
-		case 0x1D:
-			return "ROM+MBC5+RUMBLE+SRAM";
-		case 0x1E:
-			return "ROM+MBC5+RUMBLE+SRAM+BATTERY";
-		case 0x1F:
-			return "Pocket Camera";
-		case 0xFD:
-			return "Bandai TAMA5";
-		case 0xFE:
-			return "Hudson HuC-3";
-		case 0xFF:
-			return "Hudson HuC-1";
-		default:
-			return "Unknown MBC type";
-	}
-}
-/*
- * Das main
- *
- */
-
-int 
+int
 main(int argc, char *argv[])
 {
-	int ch;
-	char *ep;
+	FILE *rom;
 
-	char *filename;
-	char cartname[32];
-	char nlicensee[3];
-	FILE *f;
-	int pad_value = 0;
-	int ram_size = 0;
-	int mbc_type = 0;
-	int gbc_mode = 0;
+	if (argc < 2)
+		errx(1, "Usage: rgbfix romfile");
 
-	ulOptions = 0;
+	if ((rom = fopen(argv[argc - 1], "rb+")) == NULL)
+		err(1, "Error opening file %s", argv[argc - 1]);
 
-	if (argc == 1)
-		usage();
+	fclose(rom);
 
-	while ((ch = getopt(argc, argv, "Ccdjk:m:p:qr:st:v")) != -1) {
-		switch (ch) {
-		case 'c':
-			if (ulOptions & OPTF_GBCMODE) {
-				errx(EX_USAGE, "-c and -C can't be used together");
-			}
-			ulOptions |= OPTF_GBCMODE;
-			gbc_mode = 0xC0;
-			break;
-		case 'C':
-			if (ulOptions & OPTF_GBCMODE) {
-				errx(EX_USAGE, "-c and -C can't be used together");
-			}
-			ulOptions |= OPTF_GBCMODE;
-			gbc_mode = 0x80;
-			break;
-		case 'd':
-			ulOptions |= OPTF_DEBUG;
-			break;
-		case 'j':
-			ulOptions |= OPTF_JAPAN;
-			break;
-		case 'k':
-			strncpy(nlicensee, optarg, 2);
-			ulOptions |= OPTF_NLICENSEE;
-			break;
-		case 'm':
-			ulOptions |= OPTF_MBCTYPE;
-			mbc_type = strtoul(optarg, &ep, 0);
-			if (optarg[0] == '\0' || *ep != '\0')
-				errx(EX_USAGE, "Invalid argument for option 'm'");
-			if (mbc_type < 0 || mbc_type > 0xFF)
-				errx(EX_USAGE, "Argument for option 'm' must be between 0 and 0xFF");
-			break;
-		case 'p':
-			ulOptions |= OPTF_PAD;
-			pad_value = strtoul(optarg, &ep, 0);
-			if (optarg[0] == '\0' || *ep != '\0')
-				errx(EX_USAGE, "Invalid argument for option 'p'");
-			if (pad_value < 0 || pad_value > 0xFF)
-				errx(EX_USAGE, "Argument for option 'p' must be between 0 and 0xFF");
-			break;
-		case 'q':
-			ulOptions |= OPTF_QUIET;
-			break;
-		case 'r':
-			ulOptions |= OPTF_RAMSIZE;
-			ram_size = strtoul(optarg, &ep, 0);
-			if (optarg[0] == '\0' || *ep != '\0')
-				errx(EX_USAGE, "Invalid argument for option 'r'");
-			if (ram_size < 0 || ram_size > 0xFF)
-				errx(EX_USAGE, "Argument for option 'r' must be between 0 and 0xFF");
-			break;
-		case 's':
-			ulOptions |= OPTF_SGBMODE;
-			break;
-		case 't':
-			strncpy(cartname, optarg, 16);
-			ulOptions |= OPTF_TITLE;
-			break;
-		case 'v':
-			ulOptions |= OPTF_VALIDATE;
-			break;
-		default:
-			usage();
-			/* NOTREACHED */
-		}
-		}
-		argc -= optind;
-		argv += optind;
-
-	if (argc == 0)
-		usage();
-
-	filename = argv[argc - 1];
-
-	if (!FileExists(filename))
-		strncat(filename, ".gb", 3);
-
-	f = fopen(filename, "rb+");
-	if ((f = fopen(filename, "rb+")) != NULL) {
-
-		/*
-		 * -d (Debug) option code
-		 *
-		 */
-
-		if ((ulOptions & OPTF_DEBUG) && !(ulOptions & OPTF_QUIET)) {
-			printf("-d (Debug) option enabled...\n");
-		}
-		/*
-		 * -p (Pad) option code
-		 *
-		 */
-
-		if (ulOptions & OPTF_PAD) {
-			int size, padto;
-			unsigned int calcromsize, cartromsize;
-			int bytesadded = 0;
-
-			size = FileSize(f);
-			padto = 0x8000L;
-			while (size > padto)
-				padto *= 2;
-
-			if (!(ulOptions & OPTF_QUIET)) {
-				printf("Padding to %dKiB with pad value %#02x\n", padto / 1024, pad_value & 0xFF);
-			}
-			if (size != padto) {
-				fflush(stdout);
-
-				fseek(f, 0, SEEK_END);
-				while (size < padto) {
-					size += 1;
-					if ((ulOptions & OPTF_DEBUG) == 0)
-						fputc(pad_value & 0xFF, f);
-					bytesadded += 1;
-				}
-				fflush(f);
-
-				if (!(ulOptions & OPTF_QUIET)) {
-					printf("\tAdded %d bytes\n", bytesadded);
-				}
-			} else {
-				if (!(ulOptions & OPTF_QUIET)) {
-					printf("\tNo padding needed\n");
-				}
-			}
-			/* ROM size byte */
-
-			calcromsize = 0;
-			while (size > (0x8000L << calcromsize))
-				calcromsize += 1;
-
-			fseek(f, 0x148, SEEK_SET);
-			cartromsize = fgetc(f);
-
-			if (calcromsize != cartromsize) {
-				if (!(ulOptions & OPTF_DEBUG)) {
-					fseek(f, 0x148, SEEK_SET);
-					fputc(calcromsize, f);
-					fflush(f);
-				}
-				if (!(ulOptions & OPTF_QUIET)) {
-					printf("\tChanged ROM size byte from %#02x (%dKiB) to %#02x (%dKiB)\n",
-					    cartromsize,
-					    (0x8000 << cartromsize) / 1024,
-					    calcromsize,
-					    (0x8000 << calcromsize) / 1024);
-				}
-			} else if (!(ulOptions & OPTF_QUIET)) {
-				printf("\tROM size byte is OK\n");
-			}
-
-			if (calcromsize > 8)
-				warnx("ROM is %dKiB, max valid size is 8192KiB", (0x8000 << calcromsize) / 1024);
-		}
-		/*
-		 * -t (Set carttitle) option code
-		 *
-		 */
-
-		if (ulOptions & OPTF_TITLE) {
-			if (!(ulOptions & OPTF_QUIET)) {
-				printf("Setting cartridge title:\n");
-			}
-			if ((ulOptions & OPTF_DEBUG) == 0) {
-				fflush(f);
-				fseek(f, 0x0134L, SEEK_SET);
-				fwrite(cartname, 16, 1, f);
-				fflush(f);
-			}
-			if (!(ulOptions & OPTF_QUIET)) {
-				printf("\tTitle set to '%s'\n", cartname);
-			}
-		}
-		/*
-		 * -k (Set new licensee) option code
-		 */
-		if (ulOptions & OPTF_NLICENSEE) {
-			if (!(ulOptions & OPTF_QUIET)) {
-				printf("Setting new licensee:\n");
-			}
-			if ((ulOptions & OPTF_DEBUG) == 0) {
-				fflush(f);
-				fseek(f, 0x144, SEEK_SET);
-				fwrite(nlicensee, 2, 1, f);
-				fflush(f);
-			}
-			if (!(ulOptions & OPTF_QUIET)) {
-				printf("\tLicensee set to '%s'\n", nlicensee);
-			}
-		}
-		/*
-		 * -r (Set ram size) option code
-		 *
-		 */
-		if (ulOptions & OPTF_RAMSIZE) {
-			/* carttype byte can be anything? */
-			if (!(ulOptions & OPTF_QUIET)) {
-				printf("Setting RAM size:\n");
-			}
-			if (!(ulOptions & OPTF_DEBUG)) {
-				fflush(f);
-				fseek(f, 0x149L, SEEK_SET);
-				fputc(ram_size, f);
-				fflush(f);
-			}
-			if (!(ulOptions & OPTF_QUIET)) {
-				printf("\tRAM size set to %#02x\n", ram_size);
-			}
-		}
-		/*
-		 * -j (Set region flag) option code
-		 */
-		if (ulOptions & OPTF_JAPAN) {
-			if (!(ulOptions & OPTF_DEBUG)) {
-				fflush(f);
-				fseek(f, 0x14A, SEEK_SET);
-				fputc(1, f);
-				fflush(f);
-			}
-			if (!(ulOptions & OPTF_QUIET)) {
-				printf("Setting region code:\n");
-				printf("\tRegion code set to non-Japan\n");
-			}
-		}
-		/*
-		 * -m (Set MBC type) option code
-		 */
-		if (ulOptions & OPTF_MBCTYPE) {
-			/* carttype byte can be anything? */
-			if (!(ulOptions & OPTF_QUIET)) {
-				printf("Setting MBC type:\n");
-			}
-			if (!(ulOptions & OPTF_DEBUG)) {
-				fflush(f);
-				fseek(f, 0x147L, SEEK_SET);
-				fputc(mbc_type, f);
-				fflush(f);
-			}
-			if (!(ulOptions & OPTF_QUIET)) {
-				printf("\tMBC type set to %#02x (%s)\n", mbc_type, MBC_String(mbc_type));
-			}
-		}
-		/*
-		 * -C/-c (Set GBC only/compatible mode)
-		 */
-		if (ulOptions & OPTF_GBCMODE) {
-			if (!(ulOptions & OPTF_QUIET)) {
-				printf("Setting Game Boy Color flag:\n");
-			}
-			if (!(ulOptions & OPTF_DEBUG)) {
-				fflush(f);
-				fseek(f, 0x143L, SEEK_SET);
-				fputc(gbc_mode, f);
-				fflush(f);
-			}
-			if (!(ulOptions & OPTF_QUIET) && gbc_mode == 0x80) {
-				printf("\tGBC flag set to GBC compatible (0x80)\n");
-			}
-			if (!(ulOptions & OPTF_QUIET) && gbc_mode == 0xC0) {
-				printf("\tGBC flag set to only (0xC0)\n");
-			}
-
-			if (ulOptions & OPTF_TITLE) { 
-				if (cartname[0xF]) {
-					warnx("Last character of cartridge title was overwritten by '-%c' option", gbc_mode == 0x80 ? 'C' : 'c');
-				}
-			}
-		}
-		/*
-		 * -s (Set SGB mode) option code
-		 */
-		if (ulOptions & OPTF_SGBMODE) {
-			if (!(ulOptions & OPTF_QUIET)) {
-				printf("Setting SGB mode:\n");
-			}
-			if (!(ulOptions & OPTF_DEBUG)) {
-				fflush(f);
-				// set old licensee code to 0x33
-				fseek(f, 0x14B, SEEK_SET);
-				fputc(0x33, f);
-			}
-			if (!(ulOptions & OPTF_QUIET)) {
-				printf("\tOld licensee code set to 0x33\n");
-			}
-			if (!(ulOptions & OPTF_DEBUG)) {
-				// set SGB flag to 0x03
-				fseek(f, 0x146, SEEK_SET);
-				fputc(3, f);
-				fflush(f);
-			}
-			if (!(ulOptions & OPTF_QUIET)) {
-				printf("\tSGB flag set to 0x03\n");
-			}
-		}
-		/*
-		 * -v (Validate header) option code
-		 *
-		 */
-
-		if (ulOptions & OPTF_VALIDATE) {
-			long i, byteschanged = 0;
-			unsigned int cartromsize, calcromsize = 0, filesize;
-			unsigned short cartchecksum = 0, calcchecksum = 0;
-			unsigned char cartcompchecksum = 0, calccompchecksum =
-			0;
-			int ch;
-
-			if (!(ulOptions & OPTF_QUIET)) {
-				printf("Validating header:\n");
-			}
-			fflush(stdout);
-
-			/* Nintendo Character Area */
-
-			fflush(f);
-			fseek(f, 0x0104L, SEEK_SET);
-
-			for (i = 0; i < 48; i += 1) {
-				int ch;
-
-				ch = fgetc(f);
-				if (ch == EOF)
-					ch = 0x00;
-				if (ch != NintendoChar[i]) {
-					byteschanged += 1;
-
-					if ((ulOptions & OPTF_DEBUG) == 0) {
-						fseek(f, -1, SEEK_CUR);
-						fputc(NintendoChar[i], f);
-						fflush(f);
-					}
-				}
-			}
-
-			fflush(f);
-
-			if (!(ulOptions & OPTF_QUIET)) {
-				if (byteschanged)
-					printf
-					    ("\tChanged %ld bytes in the Nintendo Character Area\n",
-					    byteschanged);
-				else
-					printf("\tNintendo Character Area is OK\n");
-			}
-			/* ROM size */
-
-			fflush(f);
-			fseek(f, 0x0148L, SEEK_SET);
-			cartromsize = fgetc(f);
-			if (cartromsize == EOF)
-				cartromsize = 0x00;
-			filesize = FileSize(f);
-			while (filesize > (0x8000L << calcromsize))
-				calcromsize += 1;
-
-			/* Checksum */
-
-			fflush(f);
-			fseek(f, 0, SEEK_SET);
-
-			for (i = 0; i < (0x8000L << calcromsize); i += 1) {
-				ch = fgetc(f);
-				if (ch == EOF)
-					ch = 0;
-
-				if (i < 0x0134L)
-					calcchecksum += ch;
-				else if (i < 0x014DL) {
-					calccompchecksum += ch;
-					calcchecksum += ch;
-				} else if (i == 0x014DL)
-					cartcompchecksum = ch;
-				else if (i == 0x014EL)
-					cartchecksum = ch << 8;
-				else if (i == 0x014FL)
-					cartchecksum |= ch;
-				else
-					calcchecksum += ch;
-			}
-
-			calccompchecksum = 0xE7 - calccompchecksum;
-			calcchecksum += calccompchecksum;
-
-			if (cartchecksum != calcchecksum) {
-				fflush(f);
-				fseek(f, 0x014EL, SEEK_SET);
-				if ((ulOptions & OPTF_DEBUG) == 0) {
-					fputc(calcchecksum >> 8, f);
-					fputc(calcchecksum & 0xFF, f);
-				}
-				fflush(f);
-				if (!(ulOptions & OPTF_QUIET)) {
-					printf
-					    ("\tChecksum changed from 0x%04lX to 0x%04lX\n",
-					    (long) cartchecksum, (long) calcchecksum);
-				}
-			} else {
-				if (!(ulOptions & OPTF_QUIET)) {
-					printf("\tChecksum is OK\n");
-				}
-			}
-
-			if (cartcompchecksum != calccompchecksum) {
-				fflush(f);
-				fseek(f, 0x014DL, SEEK_SET);
-				if ((ulOptions & OPTF_DEBUG) == 0)
-					fputc(calccompchecksum, f);
-				fflush(f);
-				if (!(ulOptions & OPTF_QUIET)) {
-					printf
-					    ("\tCompChecksum changed from 0x%02lX to 0x%02lX\n",
-					    (long) cartcompchecksum,
-					    (long) calccompchecksum);
-				}
-			} else {
-				if (!(ulOptions & OPTF_QUIET)) {
-					printf("\tCompChecksum is OK\n");
-				}
-			}
-
-		}
-		fclose(f);
-	} else {
-		err(EX_NOINPUT, "Could not open file '%s'", filename);
-	}
-
-	return (0);
+	return 0;
 }