 |
| Register | Login | |||||
 |
Main
| Memberlist
| Active users
| ACS
| Commons
| Calendar
| Online users Ranks | FAQ | Color Chart | Photo album | IRC Chat |
|
| | ||
|
| Register | Login | |||||
|
Main
| Memberlist
| Active users
| ACS
| Commons
| Calendar
| Online users Ranks | FAQ | Color Chart | Photo album | IRC Chat |
|
| | ||
1 user currently in Rom Hacking:  hukka |
| Acmlm's Board - I2 Archive - Rom Hacking - Now what? |
 |  |  |
| Add to favorites | "RSS" Feed | Next newer thread | Next older thread |
| User | Post | ||
Ringodoggie Snifit Level: 27  Posts: 207/281 EXP: 114340 For next: 1819 Since: 03-23-04 From: London, Ontario, Canada Since last post: 27 days Last activity: 5 hours |
| ||
| I changed the byte in the NES header to expand PRG-ROM space for my SMB3 hack, and expanded the file size, but a grey screen appears every time I try to play, like a blank ROM. | |||
|
Kefka Indefinitely Unbanned Level: 81 Posts: 3220/3392 EXP: 4826208 For next: 166641 Since: 03-15-04 From: Pomona, CALIFORNIA BABY! Since last post: 4 hours Last activity: 4 hours |
| ||
Once you add space to a rom, don't you need to rearrange/program everything to make sure it runs properly? I've never expanded though, so perhaps I am just naive.  |
|||
Lenophis Super Koopa Level: 44  Posts: 493/830 EXP: 584360 For next: 26925 Since: 03-15-04 From: Duluth, MN Since last post: 4 hours Last activity: 3 hours |
| ||
Originally posted by Kefka I believe the master code must be in the last bank of the rom. It's been a while though... =\ |
|||
beneficii Lakitu Level: 36 Posts: 146/567 EXP: 299656 For next: 8454 Since: 06-27-04 From: Cordova, TN, USA Since last post: 14 hours Last activity: 6 hours |
| ||
Originally posted by Ringodoggie Doesn't mapper 4 have certain fixed sizes for the ROM? Also, did you make sure to put the last $4000 bytes of the PRG-ROM in the original game also the last $4000 in your expanded ROM? In mapper 4, the last $4000 bytes of the PRG-ROM are hardwired to certain addresses, depending on your settings. (edited by beneficii on 06-19-05 01:31 AM) |
|||
Rockman Flurry Level: 26 Posts: 224/250 EXP: 96387 For next: 5888 Since: 03-17-04 Since last post: 18 days Last activity: 16 days |
| ||
| What I did, was for every $4000 bytes I added at the end of the ROM, I increased 0x04 by 1. I never had any problems with SMB3. But with other ROMs, I have. Every game is different. If you need more information, take a look at this. Good luck. | |||
Fx3 Shyguy Level: 13  Posts: 54/80 EXP: 10252 For next: 15 Since: 04-11-05 From: Brazil Since last post: 98 days Last activity: 34 days |
| ||
| For some unknown reason, a game might write values higher than the actual number of PRG-ROM banks. This way, if you "expand" the game, you WILL HAVE problems. Internal hacking is required in order to trap that invalid value and fix it. Remember - there's no MAGIC WAND on romhacking. |
|||
|
BGNG Snifit Level: 22  Posts: 48/276 EXP: 56579 For next: 1771 Since: 06-03-05 Since last post: 8 days Last activity: 3 hours |
| ||
| Otherwise, I believe that the last bank of PRG-ROM is loaded into the upper memory bank by default, so if the file is simply enlarged, that'd be a bunch of 00's, or the... erm.... BRK opcode? | |||
|
HyperLamer <||bass> and this was the soloution i thought of that was guarinteed to piss off the greatest amount of people Sesshomaru Tamaranian Level: 118 Posts: 5097/8210 EXP: 18171887 For next: 211027 Since: 03-15-04 From: Canada, w00t! LOL FAD Since last post: 2 hours Last activity: 2 hours |
| ||
| You should just be able to stick in a bank change instruction though...? |
| Add to favorites | "RSS" Feed | Next newer thread | Next older thread |
| Acmlm's Board - I2 Archive - Rom Hacking - Now what? |
| | |
