Search found 534 matches
- Today, 7:49 am
- Forum: Work Logs & Projects
- Topic: Thesis about a PS1 Game Engine
- Replies: 9
- Views: 1965
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...
- Yesterday, 12:23 am
- Forum: Graphics/GPU
- Topic: TSQ Files?
- Replies: 5
- Views: 351
Re: TSQ Files?
Thank you! Yes, I think I can imagine why you are considering the TSQ files as not very interesting ; ) I've only got into that stuff because I was wondering what they were talking about in the file formats doc (and especially, my file system viewer did often mis-detect random binaries as possible T...
- March 16th, 2024, 6:04 pm
- Forum: Graphics/GPU
- Topic: TSQ Files?
- Replies: 5
- Views: 351
Re: TSQ Files?
Only TSQ files i've ever heard of are Takara's custom sequence format used by Choro Q Wonderful! . Yeah, that's something else, those TSQ/TVB files seem to be some equivalent to SEQ/VAB audio. I know capcom tested them, maybe used them, it's in the tron bonne leak Cool, that looks right, with all t...
- March 13th, 2024, 1:47 am
- Forum: Graphics/GPU
- Topic: TSQ Files?
- Replies: 5
- Views: 351
TSQ Files?
Does anybody have TSQ files? According to Sony's file formats document, they would contain data for "2D Animation Time Sequences", but I have never seen such files for real. If you can find one - anywhere in retail games, homebrews, programming examples, demos, whatever - please let me know!
- March 5th, 2024, 7:22 am
- Forum: Sound/SPU
- Topic: ADSR Behavior Consensus?
- Replies: 8
- Views: 1976
Re: ADSR Behavior Consensus?
I'm a little confused on exactly how to utilize what I'm seeing! :D Why? Just run the diag.exe in emulators and check if the ADSR graphs are looking right. I haven't tried that, but it would be interesting if the four SPU emulations that you had posted above are actually producing different ADSR gr...
- February 26th, 2024, 1:44 pm
- Forum: Input/Output
- Topic: SCPH-1002 BIOS corrupt.
- Replies: 11
- Views: 27423
Re: SCPH-1002 BIOS corrupt.
I've converted the bios boot gui to EXE format and replaced the cdrom sector loading functions by a fixed logo and licence strings... so I could upload the EXE to the broken console without cdrom drive attached... doing that, it's now capable of properly displaying "Licensed by". Then, whi...
- February 26th, 2024, 1:18 pm
- Forum: Graphics/GPU
- Topic: Help with PS1 16bit tim image
- Replies: 6
- Views: 1413
Re: Help with PS1 16bit tim image
Ah, I thought it was only one "TIM" file, and might exceed 2Mbyte after decrompression. Thanks for changing rar to zip. The tim's in there have all wrong colors, which is somewhat impossible for 16bit direct color. I'd assume that they are 4bit or 8bit (or a mixup thereof). The required pa...
- February 26th, 2024, 9:55 am
- Forum: Graphics/GPU
- Topic: Help with PS1 16bit tim image
- Replies: 6
- Views: 1413
Re: Help with PS1 16bit tim image
That is a rar file, those are very hard to deal with, you would probably need the newest version of the rar software. But even then, given the size, what makes you think that it could contain a tim file???
- February 25th, 2024, 2:58 am
- Forum: Sound/SPU
- Topic: What are .SGG and .SFX files?
- Replies: 2
- Views: 793
Re: What are .SGG and .SFX files?
Look at the file headers, just having the extension is a bit meaningless. .SFX is supposedly short for Sound Effects and could mean anything. There might be some standard used in several games. But I am also sure that several people have used the abbreviation for different file formats. .SGG files a...
- February 24th, 2024, 2:12 pm
- Forum: Input/Output
- Topic: SCPH-1002 BIOS corrupt.
- Replies: 11
- Views: 27423
Re: SCPH-1002 BIOS corrupt.
The "ed by ed" issue seems to be popular on reddit http://www.google.com/search?q=psx+%22ed+by+ed%22+site:www.reddit.com I don't really understand how to browse that webpage... from what I can see, the problem occurs on both PAL and NTSC consoles (despite of the different GUIs), and they d...
- February 24th, 2024, 1:35 pm
- Forum: Work Logs & Projects
- Topic: Thesis about a PS1 Game Engine
- Replies: 9
- Views: 1965
Re: Thesis about a PS1 Game Engine
The boot screen where it is saying "d" and "d" without PS logo, is that because you forgot to include the licence/logo sectors, or is it a hardware glitch (that also happens on retail discs)? And the game engine, are you writing own GTE code, creating your own linked lists, and d...
- February 23rd, 2024, 4:46 pm
- Forum: Input/Output
- Topic: SCPH-1002 BIOS corrupt.
- Replies: 11
- Views: 27423
Re: SCPH-1002 BIOS corrupt.
My oldest SCPH-1002 is now also saying "ed by ed by" instead of "Licensed by" when booting from CDROM. That is, when booting with the built-in BIOS, it does look exactly as in the first picture in first post above, and refuses to boot any further. Cleaning the lens and disc doesn...
- February 22nd, 2024, 2:36 pm
- Forum: Sound/SPU
- Topic: ADSR Behavior Consensus?
- Replies: 8
- Views: 1976
Re: ADSR Behavior Consensus?
Just following up to say a big thank you - this writeup on the ADSR behavior is great - really straightforward compared to most other things I'd seen. Yipieh. I guess it was almost a bit too straightforward, lacking all those expected confusing descriptions ; ) I'm looking forward to your SPU test ...
- February 16th, 2024, 2:15 pm
- Forum: General Chat & Messaging
- Topic: PSX Vertex Colour and Texture Blending
- Replies: 2
- Views: 1415
Re: PSX Vertex Colour and Texture Blending
The formula is A = B * C, but I don't know if or how you can implement that ; )
- February 12th, 2024, 12:52 pm
- Forum: General Chat & Messaging
- Topic: No streamed audio (hardware problem)
- Replies: 8
- Views: 2960
Re: No streamed audio (hardware problem)
Yes, KM62V256CL6-7L should be the same. I'll add that as another known chip in psxspx. The XA-ADPCM decoder chip would be CXD1815Q (Decoder/FIFO), but I don't know if/which/if any pins could cause ADPCM problems. I would rather not mess with that chip, or first check the CXD1815Q (or CXD1199AQ) data...
- February 11th, 2024, 2:20 am
- Forum: Research
- Topic: GPU Rendering Timings
- Replies: 2
- Views: 1245
Re: GPU Rendering Timings
And rougly related: The GPU FIFO behaviour. The FIFO itself isn't so special, but the timings for removing and processing data from FIFO are quite complicated... The GPU uses a 16-word (64-byte) write FIFO for sending commands and parameters (and VRAM data) from CPU to GPU. FIFO Overrun Internally, ...
- February 11th, 2024, 1:54 am
- Forum: Sound/SPU
- Topic: ADSR Behavior Consensus?
- Replies: 8
- Views: 1976
Re: ADSR Behavior Consensus?
Does this require much specialized hardware or knowledge? No, nothing special (other than having a way to run EXE files on the console, preferably without burning CDRs for each test). I've been reading the SPU section of psx-spx a ton over the last few days, but I haven't seen anything specifically...
- February 9th, 2024, 12:17 am
- Forum: Research
- Topic: GPU Rendering Timings
- Replies: 2
- Views: 1245
GPU Rendering Timings
Here are the GPU rendering timings. All values are measured in 33MHz CPU clock cycles. The GPU can render up to 66 million pixels per second, that figure applies for monochrome Rects, textured Rects, and even for Rects with texture blending. Monochrome Polygons can also reach 66Mpix/s, however, the ...
- February 8th, 2024, 9:04 am
- Forum: Sound/SPU
- Topic: ADSR Behavior Consensus?
- Replies: 8
- Views: 1976
Re: ADSR Behavior Consensus?
The best method is to emulate the SPU on the playstation itself. And then capture the real hardware's waveforms (from reverb buffer, or from the SPU status registers), and compare them against the emulated waveforms. A basic test would be to display the captured & emulated waveforms on the scree...
- February 7th, 2024, 9:40 am
- Forum: General Chat & Messaging
- Topic: No streamed audio (hardware problem)
- Replies: 8
- Views: 2960
Re: No streamed audio (hardware problem)
I think this is where I need to look? ( https://psx-spx.consoledev.net/pinouts/#pinouts-spu-pinouts ) Sorts of, that's some older/inofficial hack. The official doc is here http://problemkaputt.de/psx-spx.htm Either way, if you search for something like IC310, the doc should contain part numbers of ...