Search found 632 matches

by nocash
April 27th, 2025, 10:48 pm
Forum: NO$PSX Emulator
Topic: TTY comms via serial link support.
Replies: 3
Views: 202

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.
by nocash
April 27th, 2025, 10:08 am
Forum: Hardware
Topic: [Help] PS1 Recap - Lifted pad on C527, need advice for jumper
Replies: 8
Views: 344

Re: [Help] PS1 Recap - Lifted pad on C527, need advice for jumper

Ah, okay, I didn't notice that it's only showing the Side A copper layer. Nonetheless, it is additionally showing the Side A text layer (or something similar to that, it doesn't exactly match up with text layer on the photos). Most of the horizontal, vertical, diagonal and curved lines on the capaci...
by nocash
April 26th, 2025, 11:24 pm
Forum: Hardware
Topic: [Help] PS1 Recap - Lifted pad on C527, need advice for jumper
Replies: 8
Views: 344

Re: [Help] PS1 Recap - Lifted pad on C527, need advice for jumper

You can even see the connecting trace in your own photo actually if you look close enough. On both connected pairs actually. Hmm, yes. That makes it look as if there is a horizontal wire between the upper pins of the capacitors. I'd still use a multimeter to check if the ripped wire does really hav...
by nocash
April 26th, 2025, 11:16 pm
Forum: Hardware
Topic: [Help] PS1 Recap - Lifted pad on C527, need advice for jumper
Replies: 8
Views: 344

Re: [Help] PS1 Recap - Lifted pad on C527, need advice for jumper

Would it be viable to solder it together with C518 instead, since they seem to be connected? I don't see what makes you think that they are connected. The picture from the service manual is kinda useless, it's showing multilayer pcb wiring, without any indication which wires connect to which layer....
by nocash
March 21st, 2025, 4:43 pm
Forum: General Chat & Messaging
Topic: 'Ed by ed by' strange issue on boot up
Replies: 6
Views: 1654

Re: 'Ed by ed by' strange issue on boot up

There are two relevant threads, albeit none with a proper thread name referring to the problem. Now that you have created a dedicated thread name, we could keep that, but need links to the other threads... https://www.psxdev.net/forum/viewtopic.php?f=54&t=846 https://www.psxdev.net/forum/viewtop...
by nocash
March 21st, 2025, 3:06 pm
Forum: General Chat & Messaging
Topic: 'Ed by ed by' strange issue on boot up
Replies: 6
Views: 1654

Re: 'Ed by ed by' strange issue on boot up

Well yes, that is a known issue, but why do you start a new topic on that?
Use the search function to find the existing threads about ed by ed by.
by nocash
March 8th, 2025, 5:56 am
Forum: Graphics/GPU
Topic: vram setup and texture U/V origin point
Replies: 2
Views: 4494

Re: vram setup and texture U/V origin point

That is called Texture page.
I don't remember if you can set it to 544, otherwise just use 512 and 32 to the texture coordinates themselves.
There is also that Texture window feature to add/mask bits within the texture coordinates.
by nocash
February 24th, 2025, 1:23 am
Forum: Graphics/GPU
Topic: CPU and GPU parallelism
Replies: 6
Views: 2864

Re: CPU and GPU parallelism

The linked list DMA is broken down into small DMA-snippets for writing to the FIFO, and the CPU is running between those DMA-snippets. So yes, CPU and GPU can work in parallel. A very large linked-list, with many tiny 1x1pixel Rects will more time away from the CPU. The official specs are here https...
by nocash
February 13th, 2025, 12:51 pm
Forum: General Chat & Messaging
Topic: SCPH-1001 that is booting shy
Replies: 20
Views: 12350

Re: SCPH-1001 that is booting shy

Thanks, sounds as reflow didn't help, and that new chips are needed. And if it was sold, that's fine, I just wondered what happened to it. I've no experience with buying old chips, but it looks as if you buy them online. There are some CXD1199BQ's. And CXD1815Q seems to be available en masse. But I ...
by nocash
February 13th, 2025, 9:59 am
Forum: General Chat & Messaging
Topic: SCPH-1001 that is booting shy
Replies: 20
Views: 12350

Re: SCPH-1001 that is booting shy

Does the console still work with the replaced CXD1199BQ chip? (The repair was interesting. But, as far as I remember, a few days after replacing that chip, you had mentioned eleswhere that you don't have a working SCPH-1001 cnnsole? I am a bit confused on whether it's working or not.) And did you tr...
by nocash
February 3rd, 2025, 4:21 am
Forum: General Chat & Messaging
Topic: SCPH-1001 with Revision 2.0 BIOS?
Replies: 23
Views: 12550

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 C...
by nocash
January 30th, 2025, 1:39 am
Forum: NO$PSX Emulator
Topic: Launching an ISO (PS-EXE) from the command line
Replies: 6
Views: 4037

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: 12550

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 mainly ...
by nocash
January 19th, 2025, 12:31 pm
Forum: Programming/CPU
Topic: C Programming Issues(Psy-Q SDK 1.12: Controller and Graphics Issues)
Replies: 7
Views: 4090

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: 14
Views: 7999

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 br...
by nocash
January 13th, 2025, 11:10 am
Forum: General Chat & Messaging
Topic: SCPH-1001 with Revision 2.0 BIOS?
Replies: 23
Views: 12550

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.p...
by nocash
January 7th, 2025, 6:14 pm
Forum: General Chat & Messaging
Topic: SCPH-1001 that is booting shy
Replies: 20
Views: 12350

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 sc...
by nocash
January 3rd, 2025, 1:43 pm
Forum: NO$PSX Emulator
Topic: VRAM Object List blank in Windows 11
Replies: 14
Views: 7999

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$psx, or if it shou...
by nocash
December 23rd, 2024, 9:01 am
Forum: NO$PSX Emulator
Topic: VRAM Object List blank in Windows 11
Replies: 14
Views: 7999

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$psx update will use a "list" instead of "tree" in the vram viewer, maybe that fixes the problem (but the filesystem viewer would probably still have the problem). I had so...
by nocash
December 23rd, 2024, 2:29 am
Forum: NO$PSX Emulator
Topic: NO$PSX V2.2 Released (16th Dec 2022)
Replies: 20
Views: 57696

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 bit...