[Tuxnes-devel] PATCH: Here is the fix /* for the Game Genie */ to allow abitrary number of codes :)

[Mike M. <che...@ya...>]

This should allow many hours of fun.  The limit is 1024 bytes of input, however this is an easy
change.  The --help was updated here is the new look, extra credits for finding ought what the
example dose :P

  -g, --gamegenie=szxaykvs,sxoanxvs,szvesuvs... Game Genie codes

--- emu.c.orig	2003-11-30 14:59:04.000000000 -0600
+++ emu.c	2003-11-30 15:07:13.000000000 -0600
@@ -67,9 +67,8 @@
 int	dolink = 0;
 int	MAPPERNUMBER = -1;
 int	SRAM_ENABLED;
-int	gamegenie = 0;
-int	irqflag = 0;
-int	mapmirror = 0;
+unsigned int	irqflag = 0;
+unsigned int	mapmirror = 0;
 int	mapperoverride = 0;
 int     ignorebadinstr = 0;
 int	showheader = 0;
@@ -567,7 +566,7 @@
      printf ("  -v, --verbose       Verbose output\n");
      printf ("  -f, --fix-mapper    Use only the low four bits of the mapper number\n");
      printf ("  -M, --mapper=...    Specify mapper to use\n");
-     printf ("  -g, --gamegenie=... Game Genie code\n");
+     printf ("  -g, --gamegenie=szxaykvs,sxoanxvs,szvesuvs... Game Genie codes\n");
      printf ("  -H, --show-header   Show iNES header bytes\n");
      printf ("  -d, --disassemble   Disassemble\n");
      printf ("  -l, --link          Link branches optimization (may improve speed)\n");
@@ -1191,7 +1190,8 @@
   char *mkdircall;	/* buffer for /bin/mkdir call */
   char *palfile = 0;	/* palette file */
 
-  char *ggcode;
+  int gamegenie = 0;
+  char ggcode[1024];
   int ggret, parseret;
 
   /* for the Game Genie */
@@ -1205,8 +1205,6 @@
   int romfd;
 #endif
 
-  ggcode = NULL;
-
   /* set up the mapper arrays */
   InitMapperSubsystem();
 
@@ -1269,7 +1267,6 @@
   cmirror = 0;
   dolink = 0;
   disassemble = 0;
-  gamegenie = 0;
 
   /* check for the default output device */
   if ((audiofd = open (DSP, O_CREAT | O_WRONLY | O_APPEND)) < 0)
@@ -1373,8 +1370,9 @@
           showheader = 1;
           break;
         case 'g':
-          gamegenie = 1;
-          ggcode = optarg;
+          strncpy (ggcode, optarg, sizeof(ggcode));
+	  for ( gamegenie = strlen(ggcode); gamegenie >= 2; gamegenie-- )
+	     if ( ggcode[gamegenie-1] == ',' ) break;
           break;
         case 'j':
         case '1':
@@ -2126,12 +2124,20 @@
     }
 
   /* enter the Game Genie codes */
-  if (gamegenie)
+  while (gamegenie != 0)
     {
-      ggret = DecodeGameGenieCode (ggcode, &address, &data, &compare);
+      if ( gamegenie == 1 )
+        {
+	 gamegenie = 0;
+        }
+      if (verbose)
+        {
+	   fprintf (stderr, "------------------------\n");
+        }
+      ggret = DecodeGameGenieCode ( &ggcode[gamegenie], &address, &data, &compare);
       if (ggret == GAME_GENIE_BAD_CODE)
         {
-          fprintf (stderr, "invalid Game Genie code: %s\n", ggcode);
+          fprintf (stderr, "invalid Game Genie code: %s\n", &ggcode[gamegenie]);
         }
       else if (ggret == GAME_GENIE_8_CHAR)
         {
@@ -2167,6 +2173,9 @@
             fprintf (stderr, "Game Genie: value at %04X = %02X\n", address,
                      MAPTABLE[address >> 12][address]);
         }
+       ggcode[gamegenie-1] = '\0';
+       for (; gamegenie >= 2; gamegenie-- )
+	  if ( ggcode[gamegenie-1] == ',' ) break;
     }
 
   /* Choose renderer */

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