Hi Martin,
The only licensing information regarding your No$PSX BIOS that I could find is on your site:
The BIOS is emulated via a BIOS-clone, which is free and faster than the original PSX-BIOS. There may be still some compatibility issues (especially as most PSX games are applying patches to the ...
Search found 341 matches
- May 18th, 2025, 11:26 pm
- Forum: NO$PSX Emulator
- Topic: No$PSX BIOS (kernel) legal status?
- Replies: 0
- Views: 111
- May 18th, 2025, 12:38 am
- Forum: Miscellaneous
- Topic: Is it possible to run games off an Action Replay cartridge? Perhaps Net Yaroze games with Caetla?
- Replies: 6
- Views: 14561
Re: Is it possible to run games off an Action Replay cartridge? Perhaps Net Yaroze games with Caetla?
Is it possible to somehow run games off an Action Replay cartridge?
Looking at the question again, I would say yes possibly using: https://github.com/upx/upx
RS's Adventure game is 1.42MB made up of libps.exe, NY executable and assets.
Using upx with --best --force, it got it down to 402KB ...
- May 18th, 2025, 12:17 am
- Forum: NO$PSX Emulator
- Topic: Formula One 2000 Issue
- Replies: 6
- Views: 4851
Re: Formula One 2000 Issue
Why all the "I think" you ask?, well because around mid 2010's, I remember having issues with Net Yaroze code playing CDDA audio on no$psx, and I tried mednafen and it just worked. And it stuck with me but I tested it now and my NY CDDA also worked. So 

- May 15th, 2025, 11:31 am
- Forum: Miscellaneous & Off Topic
- Topic: PS1 Netplay Dongle for Controller Port 2 (Idea)
- Replies: 4
- Views: 263
Re: PS1 Netplay Dongle for Controller Port 2 (Idea)
Emulators cheat because they can do anything via software :mrgreen:
I'm not a hardware guy or do any low level stuff but memcard/controller port does have a timing signal for light guns, so the device could just count those.
This is what software receives from the hardware
https://problemkaputt ...
I'm not a hardware guy or do any low level stuff but memcard/controller port does have a timing signal for light guns, so the device could just count those.
This is what software receives from the hardware
https://problemkaputt ...
- May 13th, 2025, 7:11 pm
- Forum: Miscellaneous & Off Topic
- Topic: PS1 Netplay Dongle for Controller Port 2 (Idea)
- Replies: 4
- Views: 263
Re: PS1 Netplay Dongle for Controller Port 2 (Idea)
Interesting idea! In theory it should work, I think the hard part would be sync'ing the games.
Hope you get better in hospital!
Hope you get better in hospital!
- May 13th, 2025, 7:05 pm
- Forum: General Chat & Messaging
- Topic: Alternate CD player software for PSX
- Replies: 6
- Views: 736
Re: Alternate CD player software for PSX
I'm not familiar with pysq's low level libraries, but I guess you would be managing everything yourself.
So, I would guess you would read the CDROM, as in low level data ie raw data bytes from sectors.
You would then maintain a circular array or list, a buffer to store the data. I don't think ...
So, I would guess you would read the CDROM, as in low level data ie raw data bytes from sectors.
You would then maintain a circular array or list, a buffer to store the data. I don't think ...
- May 13th, 2025, 6:51 pm
- Forum: NO$PSX Emulator
- Topic: for Fast Iteration Testing
- Replies: 2
- Views: 195
Re: for Fast Iteration Testing
Does anyone here integrate NO$PSX into their build process for quick testing of small code changes? How do you typically load your compiled executables or data into the emulator efficiently for rapid debugging cycles?
Welcome!
I use the previous version where the command line works and launch ...
- May 10th, 2025, 7:21 pm
- Forum: General Chat & Messaging
- Topic: Yet Another New User!
- Replies: 7
- Views: 13694
Re: Yet Another New User!
Please don't advertise on the forums when it's got nothing to do with PlayStation development. That's the second time you did it. I've been monitoring your posts recently, and the stuff you've been posting isn't even really all that helpful. It's always just "your own two cents" on post after post ...
- May 2nd, 2025, 8:44 pm
- Forum: NO$PSX Emulator
- Topic: TTY comms via serial link support
- Replies: 5
- Views: 1193
Re: TTY comms via serial link support.
Here is a video of it working!
https://www.youtube.com/watch?v=vEgT5Susqt0
And source code
:
https://github.com/logi-26/YarIO


https://www.youtube.com/watch?v=vEgT5Susqt0
And source code

https://github.com/logi-26/YarIO
- April 30th, 2025, 8:52 pm
- Forum: Hardware
- Topic: [Hardware Mod] 8MB in (PU-18) Retail PSX
- Replies: 101
- Views: 321682
- April 29th, 2025, 12:05 pm
- Forum: NO$PSX Emulator
- Topic: TTY comms via serial link support
- Replies: 5
- Views: 1193
Re: TTY comms via serial link support.
I have no idea what you are talking about... a tty text output hardware game that was made by someone?
But whatever you mean, I have probably already emulated that.
Sorry, I often can't find the right words to explain things, MasterLink is correct.
TTY is a two way protocol (typically over a ...
- April 27th, 2025, 1:21 pm
- Forum: NO$PSX Emulator
- Topic: TTY comms via serial link support
- Replies: 5
- Views: 1193
TTY comms via serial link support
Hi Martin.
There is someone making a Net Yaroze game with serial link cable communication between two PS1's.
And there is no support for the serial link cable in NY, apart from the TTY functions, ie ioctl and open/close, read/write etc.
Seem to have managed to do it and it's working on hardware ...
There is someone making a Net Yaroze game with serial link cable communication between two PS1's.
And there is no support for the serial link cable in NY, apart from the TTY functions, ie ioctl and open/close, read/write etc.
Seem to have managed to do it and it's working on hardware ...
- April 20th, 2025, 2:04 pm
- Forum: Members Downloads
- Topic: MOD SOUND Music to PS1 Converter v2 Windows APP 32bit only
- Replies: 12
- Views: 31725
Re: MOD SOUND Music to PS1 Converter v2 Windows APP 32bit only
Install https://mendelson.org/ntvdmx64.html for 16bit support in win x64
But I thought ccpsx is 32bit and works in x64 (not sure either way).
But I thought ccpsx is 32bit and works in x64 (not sure either way).
- April 18th, 2025, 11:55 pm
- Forum: General Chat & Messaging
- Topic: Alternate CD player software for PSX
- Replies: 6
- Views: 736
Re: Alternate CD player software for PSX
I don't know of any.
But I think it wouldn't be that hard to code that feature, to speed it up, you just remove samples, to slow it down you just duplicated them. I'm not 100% sure that's correct I've never done it.
But I think it wouldn't be that hard to code that feature, to speed it up, you just remove samples, to slow it down you just duplicated them. I'm not 100% sure that's correct I've never done it.
- April 18th, 2025, 11:26 pm
- Forum: Hardware
- Topic: [Hardware Mod] 8MB in (PU-18) Retail PSX
- Replies: 101
- Views: 321682
Re: [Hardware Mod] 8MB in (PU-18) Retail PSX
Thanks guys! Great! I'm hopeful, but it's really hacky so I don't expect it to work. :D
I tried to upload the file via serial, with NOPS, several times but it always gets stuck at about 37%. To be safe I downloaded the file a second time but the result did not change. :shrug
Ah, thanks ...
- April 17th, 2025, 11:24 pm
- Forum: Hardware
- Topic: [Hardware Mod] 8MB in (PU-18) Retail PSX
- Replies: 101
- Views: 321682
Re: [Hardware Mod] 8MB in (PU-18) Retail PSX
Thanks guys! Great! I'm hopeful, but it's really hacky so I don't expect it to work. 

- April 13th, 2025, 2:20 am
- Forum: NO$PSX Emulator
- Topic: Formula One 2000 Issue
- Replies: 6
- Views: 4851
Re: Formula one 2000 question
I think the CDROM support on no$psx isn't 100% yet, but I don't know.
I think there shouldn't be any "not found" in that TTY log.
I think there shouldn't be any "not found" in that TTY log.
- April 13th, 2025, 2:08 am
- Forum: Hardware
- Topic: [Hardware Mod] 8MB in (PU-18) Retail PSX
- Replies: 101
- Views: 321682
Re: [Hardware Mod] 8MB in (PU-18) Retail PSX
Could someone please, with a 8MB mod mind testing my PSX.EXE?
Basically, it's a .cpe program from the SDK which does the MIME animation, converted to a psx.exe with the media appended to it in the correct 8MB memory locations.
https://www.psxdev.net/forum/viewtopic.php?f=76&t=4238
Normally, the dev ...
Basically, it's a .cpe program from the SDK which does the MIME animation, converted to a psx.exe with the media appended to it in the correct 8MB memory locations.
https://www.psxdev.net/forum/viewtopic.php?f=76&t=4238
Normally, the dev ...
- April 7th, 2025, 10:24 am
- Forum: General Chat & Messaging
- Topic: ADDING YOUR OWN MUSIC SAMPLES TO MUSIC 2000 PS1 GAME
- Replies: 7
- Views: 2982
Re: ADDING YOUR OWN MUSIC SAMPLES TO MUSIC 2000 PS1 GAME
i am not on discord site if you are on that site then is there anyway you can send a message to juju2143 cos i am not on the discord site.
It's pinned on their "?🔬-music™-nerdy-modding" channel.
The latest build was uploaded there in 2022!
https://cdn.discordapp.com/attachments ...
- April 5th, 2025, 8:24 pm
- Forum: General Chat & Messaging
- Topic: ADDING YOUR OWN MUSIC SAMPLES TO MUSIC 2000 PS1 GAME
- Replies: 7
- Views: 2982
Re: ADDING YOUR OWN MUSIC SAMPLES TO MUSIC 2000 PS1 GAME
Hi ok it is just I know it can be done cos on this website
https://infu.fyi/music-software-ps1-nerdy
That guide explains what to do.
You extract the files from the disc image, I would use cdmage.
Then follow the "EDITING SAMPLE LIBRARY" section.
Looking at the wadtool feature list page, it ...