Where can the recommended VABTOOL.EXE version be found?

EDIT: Found it:
(the google link)
https://forum.xentax.com/viewtopic.php?t=19306

The differential thing was I think only for controllers (because only they have common-mode chokes on the PS2 PCB) and was slower I think, though I don't remember why. I think it was meant for very long controller cables. Actually the slower thing was because the controllers have capacitors on some ...

I have send the cd commands in my v3(in ps2 mode) . As you can suppose it fail,it return me int=7 and returns never. I think it need cd/dvd in ps1 mode. but How it works? how is enable cd/dvd ps1 mode by the ps1drv?.I have search and search but i not found nothing.Only the register that seet speed ...

SIO2 Registers in PS2 IOP (0x1F808200): 8270 PTSR SIO2_REG_STAT70 Port Status Register. CDC and SAS lines states for connected device sensing. 3:0 r/o CDC lines state: 0=act.low / 1=inact.high. (guess) For ports 0-3 respectively (bit 0 = port 0). 7:4 r/o SAS lines inverted state: 0=inact.high / 1=a...

There were some people working on something similar - http://www.psxdev.net/forum/viewtopic.php?t=429 however the site where their project report was, is offline. Here is it in the WaybackMachine: https://web.archive.org/web/20180607111631/http://ece545.com/F16/project_reports.html https://web.archi...

It becomes problematic around branches, as you don't know what will be the next byte the CPU will load from ROM. I noticed some rather odd behavior regarding the order in which the IOP would load the data. Still it may be a bit easier on the PS1. I think that on boot-up the ROM is configured to real...

The file attached in this thread describes the SSBUSC configuration registers. Some features are missing in PS1 mode (which should be the same as on the PS1). https://assemblergames.com/threads/the-playstation-2-busses-dev9.67961/#post-960878 The PS2 has a functioning /WAIT signal but not all device...

0x19 0x22 Get Region ID String returns "for Japan" A 79004 returns that? It seems odd for a PAL / EU region model. It is quite normal, especially for the DECKARD-models. They are known to have a universal BOOT ROM and the region-specific settings are read from (the CDVD) EEPROM (if I reme...

Tested some PS1 CD commands on a PS2 SCPH-79004 (DECKARD model) in PS1 mode (if there is a hardware PS1 mode at all): I wasn't sure exactly how commands are supposed to be sent, which may be why the transfer seemed unreliable at times. The other possibility being that I did the tests from patch code...

AFAIK, all PS1 and PS2 models' chips support feeding digital audio in some way. I believe this feature is a left-over from when a CD/DVD emulator would have been connected through the Expansion PIO (on on the PS2 the Expansion Bay) port. On the PS2 I am sure that digital audio can be fed through the...

Hello. How far has work on the DMA controller come? There are unused bit fields at the top (bits 31:28) of the DPCR (0x1F8010F0) register. They might belong to a DMA channel, controlled not through the standard registers in the DMAC range, but through dedicated registers in the address space of the ...