Search found 553 matches
- Yesterday, 9:52 pm
- Forum: General Chat & Messaging
- Topic: Someone use my profile
- Replies: 4
- Views: 146
Re: Someone use my profile
If someone has used your account - no matter how it was done - that's called hacked. Spam is flooding forums or email inboxes with things like unwanted advertising. First thing is to change your password, and if you have used the same or similar passwords on other sites, also changes those passwords...
- Yesterday, 4:55 am
- Forum: General Chat & Messaging
- Topic: Someone use my profile
- Replies: 4
- Views: 146
Re: Superlative ?asual Dating - Live Women
That's new, the spammers are now hacking existing accounts from real people, instead of creating their own accounts. User "alimadhi", http://www.psxdev.net/forum/search.php?st=0&sk=t&sd=d&sr=posts&author_id=416 Apart from the Dating spam post, the signature (in all other po...
- April 21st, 2024, 11:26 am
- Forum: General Chat & Messaging
- Topic: Differences between EDC/Anti-modchip/LibCrypt?
- Replies: 4
- Views: 158
Re: Differences between EDC/Anti-modchip/LibCrypt?
Anti-modchip is yet something else:
A modchip does simulate the SCEX wobble (which SHOULD only occur in Lead-In area, but many early modchips do simulate that SCEX signal everywhere including in the discs data area).
Anti-modchip protections do check that SCEX does occur ONLY in Lead-In area.
A modchip does simulate the SCEX wobble (which SHOULD only occur in Lead-In area, but many early modchips do simulate that SCEX signal everywhere including in the discs data area).
Anti-modchip protections do check that SCEX does occur ONLY in Lead-In area.
- April 21st, 2024, 10:41 am
- Forum: General Chat & Messaging
- Topic: alternative to Redump PSX page
- Replies: 2
- Views: 79
Re: alternative to Redump PSX page
Is that a question or an announcement?
And what is a archive.org psx redump website?
If you meant http://redump.org/ or http://redump.org/discs/system/psx/ - those aren't down.
And what is a archive.org psx redump website?
If you meant http://redump.org/ or http://redump.org/discs/system/psx/ - those aren't down.
- April 19th, 2024, 11:21 pm
- Forum: General Chat & Messaging
- Topic: Differences between EDC/Anti-modchip/LibCrypt?
- Replies: 4
- Views: 158
Re: Differences between EDC/Anti-modchip/LibCrypt?
EDC's are CRC32's inside of the 930h-byte data sectors.
Libcrypt uses bad CRC16's in the sub-channels, that require a .SBI or .SUB file (or other sub-channel dumps).
Libcrypt uses bad CRC16's in the sub-channels, that require a .SBI or .SUB file (or other sub-channel dumps).
- April 11th, 2024, 11:35 pm
- Forum: Research
- Topic: New SPU Findings and Questions
- Replies: 0
- Views: 161
New SPU Findings and Questions
SPU Soft Reset If and as long as SPUCNT.bit15=0: All voices are Keyed Off, writes to Key On are ignored, and all voices are forced to ADSR volume=0000h. That is about same as FLG.bit7 on SNES APU (with big thanks to Anomie for rev-engineering the SNES hardware). Unstable 32bit SPU Writes One long-s...
- April 11th, 2024, 7:15 am
- Forum: Sound/SPU
- Topic: SQ/BD/HD format documentation on the PS1, and differences versus SMF MIDI and PS2?
- Replies: 2
- Views: 340
Re: SQ/BD/HD format documentation on the PS1, and differences versus SMF MIDI and PS2?
Is there any documentation for the SQ BD HD format used on PS2 ?
- April 11th, 2024, 5:29 am
- Forum: General Chat & Messaging
- Topic: Is it possible to use a PSone as a Dev Console?
- Replies: 5
- Views: 583
Re: Is it possible to use a PSone as a Dev Console?
I am using cable boot, anyone else knows more about cdrom booting.
Gameshark cdrom might work, too. Although when saying exploitable game disc, I did of course mean a game disc, not that gameshark disc.
Gameshark cdrom might work, too. Although when saying exploitable game disc, I did of course mean a game disc, not that gameshark disc.
- April 10th, 2024, 7:53 pm
- Forum: General Chat & Messaging
- Topic: Is it possible to use a PSone as a Dev Console?
- Replies: 5
- Views: 583
Re: Is it possible to use a PSone as a Dev Console?
It's all working. And can differ on comfort, speed, capacity. Without any soldering, you would need an exploitable game disc, and burn a bootloader to memory card. If you store your game/exe on memcard, too, then it could be max 100 Kbytes. I'd expect that each boot takes about 30 seconds (depending...
- April 9th, 2024, 9:01 pm
- Forum: General Chat & Messaging
- Topic: Is it possible to use a PSone as a Dev Console?
- Replies: 5
- Views: 583
Re: Is it possible to use a PSone as a Dev Console?
With or without soldering?
- April 3rd, 2024, 7:58 pm
- Forum: General Chat & Messaging
- Topic: How do PS1 ISO checksums work?
- Replies: 6
- Views: 1130
Re: How do PS1 ISO checksums work?
All psx sectors are MODE2 sectors, which are usually 930h bytes tall, and contain only 800h bytes of data (or more for audio sectors). So you need to slice your TMD file into 800h byte snippets, and insert those at the correct location in the 930h byte sectors. And then fix the ECC/EDC in the remain...
- April 3rd, 2024, 7:47 am
- Forum: General Chat & Messaging
- Topic: How do PS1 ISO checksums work?
- Replies: 6
- Views: 1130
Re: How do PS1 ISO checksums work?
Thanks -- if I may clarify, what am I looking for, or what am I looking at? Yes, what did you do exactly, and did you run into any specific problems? As by now, your question is a bit unclear. ISO is slang that might refer to "the cdrom filesystem" or "the whole disc image" or &...
- March 28th, 2024, 11:25 am
- Forum: Work Logs & Projects
- Topic: PSX BIOS Dumper
- Replies: 24
- Views: 82257
Re: PSX BIOS Dumper
One MAX232 chip should work fine for RX, TX, RTS, CTS. I don't know if RTS and CTS are needed or not, but it would be crazy not to connect them as the MAX232 has enough spare pins for that. DTR and DSR are probably not needed (or if they are: You can wire them to "always ready" state, so y...
- March 28th, 2024, 12:07 am
- Forum: Examples (Psy-Q)
- Topic: XMPlay Example + Tools
- Replies: 10
- Views: 46172
Re: XMPlay Example + Tools
The same timing problem than what? Nobody mentioned any timing problems. Anyways, the timing problems I could think of: Vblank accuracy is approx +/-0.001 minutes, but I doubt that even audiophiles could hear differences between 119.999 bpm and 120.001 bpm. PAL vs NTSC have different vblank timings....
- March 27th, 2024, 1:00 am
- Forum: PSXDEV Downloads
- Topic: [DOWNLOAD] PlayStation 1 BIOS Collection
- Replies: 135
- Views: 3872704
Re: [DOWNLOAD] PlayStation 1 BIOS Collection
Cool. Depending on what hardware you have, it might easier/faster to just check if the CRC32 of the BIOS memory does match up with known dumps. For example, in this tool http://www.problemkaputt.de/psx-diag.htm select "General Tests", and it'll compute the CRC32 and display it on the TV sc...
- March 24th, 2024, 7:45 pm
- Forum: PSXDEV Downloads
- Topic: [DOWNLOAD] PlayStation 1 BIOS Collection
- Replies: 135
- Views: 3872704
Re: [DOWNLOAD] PlayStation 1 BIOS Collection
Thanks for the part numbers, I have added them to the http://www.psxdev.net/forum/viewtopic.php?f=70&t=1065 thread
- March 22nd, 2024, 10:23 am
- Forum: Hardware
- Topic: [Hardware Mod] 8MB in (PU-18) Retail PSX
- Replies: 64
- Views: 186734
Re: [Hardware Mod] 8MB in (PU-18) Retail PSX
Okay, I've never tried to buy old chips myself, but there seem to be tons of sites offering that stuff. I don't know how reliable they are, but "can't find" is a bit of a surprise... if that happens, I would try a different search engine, and be sure to include world-wide search results, i...
- March 21st, 2024, 2:56 pm
- Forum: Hardware
- Topic: [Hardware Mod] 8MB in (PU-18) Retail PSX
- Replies: 64
- Views: 186734
Re: [Hardware Mod] 8MB in (PU-18) Retail PSX
Sounds as if you didn't read this, http://www.psxdev.net/forum/viewtopic.php?p=5457#p5457
Or is it some google-that-for-me-but-I-won't-buy-used-parts request?
Or is it some google-that-for-me-but-I-won't-buy-used-parts request?
- March 19th, 2024, 6:54 pm
- Forum: Work Logs & Projects
- Topic: Thesis about a PS1 Game Engine
- Replies: 12
- Views: 4869
Re: Thesis about a PS1 Game Engine
The quote has two things, none of it being of greater importance. There's some half-serious "winner or loser" attitude in there, which may be encouraging to some, and discouraging to other people. Apart from the harsh language, it was just saying that they did have tools that were easy to ...
- March 19th, 2024, 7:49 am
- Forum: Work Logs & Projects
- Topic: Thesis about a PS1 Game Engine
- Replies: 12
- Views: 4869
Re: Thesis about a PS1 Game Engine
I think I misunderstood the meaning behind Bill's quote Looks so. If you still don't understand it: Just give up, you won't understand it no matter what. (That's about what that Will or Bill was trying to say. Perhaps a bit rude, but I guess it's been meant to be a simple, clear, and reasonable adv...