Search found 32 matches

by Dark-Show
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...
by Dark-Show
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...
by Dark-Show
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...
by Dark-Show
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 :D
by Dark-Show
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.
by Dark-Show
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...
by Dark-Show
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
by Dark-Show
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...
by Dark-Show
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.
by Dark-Show
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...
by Dark-Show
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...
by Dark-Show
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...