Search found 32 matches
- May 7th, 2012, 11:30 pm
- Forum: Work Logs & Projects
- Topic: PSone BIOS modding project
- Replies: 30
- Views: 114658
Re: PSone BIOS modding project
So is the beginning 18k just all the api calls available to the system? or is their more after 18000 that is needed? Honestly doing all this work made me feel good, now the feeling is gone ;(, and im saying more because after 00064000, in the pops bios, its the same as the original schp101 bios agai...
- May 7th, 2012, 10:48 am
- Forum: Work Logs & Projects
- Topic: PSone BIOS modding project
- Replies: 30
- Views: 114658
Re: PSone BIOS modding project
with my recent findings, its quite possible that when i find the local bios address for the cd player, i can remove this whole part of the bios and replace it with a customized program written in assembly. When the time comes ill cut the cdplayer portion of the bios out and see if it can be executed...
- May 6th, 2012, 4:13 pm
- Forum: Work Logs & Projects
- Topic: PSone BIOS modding project
- Replies: 30
- Views: 114658
Re: PSone BIOS modding project
yup, I ended up finding the mirror of the bios at a different address than what you told me using the debugger and calculated the bios address using a hex editor and finding the appropriate hex data. So one down and a few more to go, ill end up posting a simple address list for sprites and hopefully...
- May 6th, 2012, 2:07 am
- Forum: Work Logs & Projects
- Topic: PSone BIOS modding project
- Replies: 30
- Views: 114658
Re: PSone BIOS modding project
here is a small edit I've done using the data discovered. It doesn't look nice but its progress
- May 6th, 2012, 12:42 am
- Forum: Work Logs & Projects
- Topic: PSone BIOS modding project
- Replies: 30
- Views: 114658
Re: PSone BIOS modding project
cybdyn, what I'm trying to do is learn how the gfx are loaded into ram and from what locations in the BIOS file, I got them almost figured out, just gotta find out where the locations are in the BIOS file are.
- May 5th, 2012, 8:52 am
- Forum: Work Logs & Projects
- Topic: PSone BIOS modding project
- Replies: 30
- Views: 114658
PSone BIOS modding project
Old Method was scrapped, as a simple scan and compare wont work for this BIOS. I'm now debugging the 101 BIOS in pSX , and tracing the ram and registers, and finding out how the BIOS rom writes to the ram, so I can hard code my changes into the BIOS. So far I was able to trace the loading of the cur...
- May 5th, 2012, 7:57 am
- Forum: General Chat & Messaging
- Topic: Did anyone mod the PSX BIOS?
- Replies: 6
- Views: 17057
Re: Did anyone mod the PSX BIOS?
I did a hex compair between the two files and i can basically see all the data in both files compaired to the instructions i just wish i knew what format the images were in. Most likely a format that can be pushed directly to the gpu
- May 5th, 2012, 3:55 am
- Forum: General Chat & Messaging
- Topic: Did anyone mod the PSX BIOS?
- Replies: 6
- Views: 17057
Re: Did anyone mod the PSX BIOS?
I have the playstation BIOS of the SCPH101 and the POPStation BIOS used in the PSP emulator. Both are version 4.5 except the popstation bios has the CD/Mem card/Boot Screen disabled, it goes straight to the playstation logo. Either im going to reverse the bios to ASM or im going to HEX Edit my chang...
- May 4th, 2012, 12:30 pm
- Forum: General Chat & Messaging
- Topic: Did anyone mod the PSX BIOS?
- Replies: 6
- Views: 17057
Did anyone mod the PSX BIOS?
Just a simple question im trying to do the same and just change images and sprites. I know that shadow attempted to reverse it.
- May 3rd, 2012, 7:06 am
- Forum: Miscellaneous
- Topic: Advancing the PSone
- Replies: 2
- Views: 6974
Re: Advancing the PSone
I know what you mean about all current games but im reading about people making addons just to emulate other systems why not just add to the current system than adding more cpus. And their have been stable overclocks achived even if you need a heatsync the added capabilities would be worth it heh. A...
- May 3rd, 2012, 2:51 am
- Forum: Miscellaneous
- Topic: Advancing the PSone
- Replies: 2
- Views: 6974
Advancing the PSone
What is the cause of the PSones short comings? I'm thinking Ram and Clockspeed. Would it not be possible to develope a peice of hardware that adds extra ram and does a software controllable overclock to the system though say a port probe. So devs can activate the new hardware in the software they wr...
- May 2nd, 2012, 3:37 pm
- Forum: General Chat & Messaging
- Topic: Hey
- Replies: 1
- Views: 4558
Hey
Hey, im Dark-Show (Greg). Been programming for a while now, although no C++ or ASM. PS1 is the greatest system and i'm working my way into advanced programming. I'm fluent in PHP and Visual Basic, and I'm also very good at digital logic. Hoping to start programming for the PS1 and found this project...