Search found 642 matches

by nocash
February 3rd, 2025, 4:21 am
Forum: General Chat & Messaging
Topic: SCPH-1001 with Revision 2.0 BIOS?
Replies: 23
Views: 24010

Re: SCPH-1001 with Revision 2.0 BIOS?

Did you use the same disc on the the 1001 and 5501's? And was it a retail disc? And just with the standard BIOS ROM, without any expansion ROM plugged into the connector at the back of the console?

I think, normally it shouldn't 'scan' the whole disc. Or only in unusual cases, like using a patched ...
by nocash
January 30th, 2025, 1:39 am
Forum: NO$PSX Emulator
Topic: Launching an ISO (PS-EXE) from the command line
Replies: 3
Views: 10176

Re: Launching an ISO (PS-EXE) from the command line

Yes, but that's bugged in the current version, sorry.
If you just want to load a recently used disc image or exe file, use Alt+F and select one of the recent files.
Or simply use Ctrl+R to load (or reload) the most recent one.
by nocash
January 27th, 2025, 2:33 am
Forum: General Chat & Messaging
Topic: SCPH-1001 with Revision 2.0 BIOS?
Replies: 23
Views: 24010

Re: SCPH-1001 with Revision 2.0 BIOS?

I didn't notice that the video was shaky - but all the best healthwise!

Are you sure that the debug console is faster? The missing SCEX check could theoretically make things slightly faster, but that SCEX check happens before displaying the PS logo.

The duration of the PS logo display should ...
by nocash
January 19th, 2025, 12:31 pm
Forum: Programming/CPU
Topic: Controller and Graphics Programming Issues
Replies: 4
Views: 7277

Re: C Programming Issues(Psy-Q SDK 1.12: Controller and Graphics Issues)

Removing line 36 and still getting the same error in line 36 makes no sense.
Or only makes sense if you don't know how to edit the source code, and save the changes.
by nocash
January 15th, 2025, 12:24 pm
Forum: NO$PSX Emulator
Topic: VRAM Object List blank in Windows 11
Replies: 12
Views: 15139

Re: VRAM Object List blank in Windows 11

The feature is called "Multiple Display Monitors". Some docs can be found here...
https://learn.microsoft.com/en-us/windows/win32/gdi/multiple-display-monitors-functions
above is only for "functions" (some web browsers are able to display a table of contents on the left of the browser window, with ...
by nocash
January 13th, 2025, 11:10 am
Forum: General Chat & Messaging
Topic: SCPH-1001 with Revision 2.0 BIOS?
Replies: 23
Views: 24010

Re: SCPH-1001 with Revision 2.0 BIOS?

Interesting anyways. If you are up for some soldering and making some custom transfer software, the cdrom firmware appears to be still undumped,
https://www.psxdev.net/forum/viewtopic.php?t=557 cdrom firmware dumping
The BIOS kernel rom chip part number is also still listed as unknown,
https://www ...
by nocash
January 7th, 2025, 6:14 pm
Forum: General Chat & Messaging
Topic: SCPH-1001 that is booting shy
Replies: 18
Views: 19310

Re: SCPH-1001 that is booting shy

Are that the SRAM data lines, D0..D7, and all eight of them looking like that?

The falling edge looks fine. The rising edge not so. But I am not sure if that's wrong: If the cpu is neither reading nor writing data, then the databus may be floating high-z, which could look about exactly as on your ...
by nocash
January 3rd, 2025, 1:43 pm
Forum: NO$PSX Emulator
Topic: VRAM Object List blank in Windows 11
Replies: 12
Views: 15139

Re: VRAM Object List blank in Windows 11

Thanks! Good to know that it isn't completely incompatible with win11.

Maybe it was a bug in win11, and microsoft has fixed in newer updates, or maybe it happens only for people with more than one monitor.

Please let me know if or when the bug does still occur for somebody with no$psx, or if it ...
by nocash
December 23rd, 2024, 9:01 am
Forum: NO$PSX Emulator
Topic: VRAM Object List blank in Windows 11
Replies: 12
Views: 15139

Re: VRAM Object List blank in Windows 11

Hmmm, I don't why no$gba works better than no$psx, I thought they were both using the same GUI code.
Next no$psx update will use a "list" instead of "tree" in the vram viewer, maybe that fixes the problem (but the filesystem viewer would probably still have the problem).

I had some... really ...
by nocash
December 23rd, 2024, 2:29 am
Forum: NO$PSX Emulator
Topic: NO$PSX V2.2 Released (16th Dec 2022)
Replies: 20
Views: 69698

Re: NO$PSX V2.2 Released (16th Dec 2022)


Is this a bug? Here's how lines appear in NO$PSX compared to other emulators. Lines where (x1-x0)>(y1-y0) become dots.

Yes, that's a bug. Real hardware should look more like the other.png. It's sorts of already fixed, but I don't know if or when I can find the patience to upload updates, I am a ...
by nocash
November 21st, 2024, 12:25 am
Forum: Psy-Q SDK
Topic: ASMPSX Header and Opcodes
Replies: 1
Views: 9626

Re: ASMPSX Header and Opcodes

Assemblers are called assemblers, not compilers.
Things like .org (or more commonly just org, without leading dot) are directives, not opcodes.

The header, that's simple and documented, it's easy to create it yourself using data directives in front of the source file, or manually inserting it after ...
by nocash
November 17th, 2024, 6:36 pm
Forum: Hardware
Topic: scph-1000 bios mod question
Replies: 19
Views: 22587

Re: scph-1000 bios mod question

Did you follow the wiring info for the "modchip feature" that I had linked above?
by nocash
November 10th, 2024, 1:44 pm
Forum: NO$PSX Emulator
Topic: VRAM Object List blank in Windows 11
Replies: 12
Views: 15139

Re: VRAM Object List blank in Windows 11

I have never heard about that problem.

Does it occur when the scrollbar gets displayed? The scrollbar does also look kinda distorted, unless that's an intended "minimalistic" appearance. The dots and vertical lines look as if it's only displaying the leftmost pixel of the text strings, but I have ...
by nocash
November 9th, 2024, 3:52 am
Forum: Documentation
Topic: Sony DTL-H2000 Troubleshooting, Info, Setup, Parts & Help
Replies: 33
Views: 237030

Re: Sony DTL-H2000 Troubleshooting, Info, Setup, Parts & Help

I think the unspecified new PC setup is just wrong, like using a power supply without -5V, in case the DTL hardware needs that voltage. Or having forgotten to properly connect the DTL audio to... whereever it is connected to.
by nocash
November 3rd, 2024, 8:16 am
Forum: Hardware
Topic: scph-1000 bios mod question
Replies: 19
Views: 22587

Re: scph-1000 bios mod question

phaseas wrote: October 31st, 2024, 12:53 am perhaps another way to buy psx-xboo ?
I would like to clarify two things.
The kernel clone is freeware you can't buy it anywhere.
Xboo refers to the "boot exe files from parallel port" feature, which is only a small (but perhaps the most useful) part of the kernel.
by nocash
November 3rd, 2024, 4:21 am
Forum: Hardware
Topic: scph-1000 bios mod question
Replies: 19
Views: 22587

Re: scph-1000 bios mod question



My bios clone does generate the scex signals on the address lines, you don't need a modchip when using that bios.

Can this be improved in a way that it is fully stealth ?

First of, the wiring info is here http://problemkaputt.de/psxspx-cdrom-protection-chipless-modchips.htm (but I am not ...
by nocash
November 1st, 2024, 12:31 pm
Forum: General Chat & Messaging
Topic: Ordering Tables
Replies: 2
Views: 6842

Re: Ordering Tables

Using two tables allows the CPU to start updating the table for the next frame while the GPU is still busy with rendering the previous table. That gets you a higher framerate.

Alongsides, you do usually have two framebuffers, one being rendered to, and the other being displayed. That gets you a ...
by nocash
October 29th, 2024, 7:29 am
Forum: Hardware
Topic: scph-1000 bios mod question
Replies: 19
Views: 22587

Re: scph-1000 bios mod question

My bios clone does generate the scex signals on the address lines, you don't need a modchip when using that bios.
by nocash
October 29th, 2024, 7:18 am
Forum: Members Downloads
Topic: Metrowerks CodeWarrior for PlayStation, R4 and R5
Replies: 19
Views: 66652

Re: Metrowerks CodeWarrior for PlayStation, R4 and R5

That is quite a long post without even telling what opcode is stored at 80013cf4.
by nocash
October 7th, 2024, 7:43 pm
Forum: NO$PSX Emulator
Topic: PSX.EXE that are bigger than 2MB in size
Replies: 3
Views: 12330

Re: PSX.EXE that are bigger than 2MB in size

That seems to be a kernel issue. The stack is near the top of the standard 2Mbyte RAM area (during loading, and also after loading).

It might work when changing the load address in the exe header to the upper 6Mbytes (though I am not sure if all kernel versions have the extra RAM enabled in the ...