Search found 306 matches

by nocash
December 23rd, 2013, 5:19 am
Forum: PSXDEV Downloads
Replies: 24
Views: 60980


Thanks for the ROM collection! I wasn't able to unzip the file and's. Either that 10 files are corrupt, or I was doing something wrong. Did anybody else have that problem, too? Or got them unzipped okay?
by nocash
November 27th, 2013, 1:39 am
Forum: Graphics/GPU
Topic: Dithering Differences?
Replies: 5
Views: 11370

Dithering Differences?

I've just noticed that there are some special dithering cases. For example, monochrome LINEs are dithered, but monochrome POLYGONs aren't (and emulated & described it in the new no$psx v1.7 and psx-spx.htm updates at ). Alongsides, when searching for psx+dither, goog...
by nocash
October 2nd, 2013, 12:39 am
Forum: CD-ROM
Topic: Anyone know how to master with XA tracks?
Replies: 5
Views: 8622

Re: Anyone know how to master with XA tracks?

Are the XA-compression tools supporting 8bit ADPCM samples, and emphasis? Most (or maybe all) existing PSX games are using 4bit ADPCM without emphasis, but those 8bit & emphasis features can be enabled in the codinginfo byte (in the cdrom sector's subheader), and the PSX hardware does actually suppo...
by nocash
April 10th, 2013, 12:02 am
Forum: Research
Topic: PSX standby voltage
Replies: 2
Views: 7122

PSX standby voltage

The PU-8 mainboards (SCPH-1000) have a 7pin power supply connector (unlike later boards with 5pin connectors). One of the extra pins is just another GND pin. The other one is +3.5V standby, ie. that pin is powered even when the console is switched off. What is THAT for? From what I can see (when gaz...
by nocash
April 8th, 2013, 6:36 am
Forum: Hardware
Topic: PSX cdrom sector buffer capacity
Replies: 10
Views: 11105

PSX cdrom sector buffer capacity

I have been doing some hardware tests on a PSone to find out how many sectors the console can hold in its sector buffer. The result is a bit puzzling: It seems to be able to hold up to EIGHT sectors, BUT: it allows to access only TWO of those sectors. The other sectors are lost - they appear to be i...
by nocash
December 4th, 2012, 8:16 am
Forum: Documentation
Topic: PSX-SPX new Playstation Spex
Replies: 4
Views: 9625

PSX-SPX new Playstation Spex

Hi, I've released a new playstation document. It's trying to give complete specs on cpu, gpu, gte, audio, cdrom, joypads, mice, lightguns, bios, and everything I could think of. - html version - text version I hope it'll be us...