I don't know how many people this benefits, but I continue to work on a little program that extracts X-Terminator cheat codes from various SFC/SNES device ROMs, and matches them to a game name. Currently I found the code locations+pointers for the UFO 7.3, 8.1, 8.3j, 8.8c, UFOSD & X-T Param Cassette
Very strangely, the Supercom Partner copier dumps SNES cartridges accurately if you choose the "CARD->SAVE CARD" option to write to disk directly, but it adds this 65816 code somewhere in some free (or not-so-free) bytes of the ROM if you go the "CARD->DOWNLOAD MEMORY" route. 🤔
I picked a "Supercom Partner" for pretty cheap with its box. It's your standard copier with some quirks. It has slow-motion, X-T code support (but none built-in?) and realtime savestates, which work, but not as well as the UFO in terms of glitching. (Now, does anyone have a "Special Partner" BIOS?)
Okay, since there were no programs that simply printed SNES internal header checksums into the console/text output, I programmed up my own. That's the first step done for matching UFO/X-Terminator codes up to their game names.
The Super UFO 8 copiers, both the 90s & 2010s vers, contain X-Terminator cheat codes stored in a similar data format to the SNES X-T itself. When a SNES game is loaded, the *inverse* checksum is compared to a list (so no game titles.) Each code uses only 4 bytes plus 1 byte for a generic description
Summer Projects 3/3: I also added a mini IEC (disk interface) breakout to my C64 DTV in a mini-keyboard, and played around with switching the hardware between NTSC/PAL timing via register writes. NTSC Demos like "Entropy" still crash, so I'm still missing something that DTVBOOT is doing correctly.
Summer Projects 2/3: Another was cleaning up my Neo-Geo MVS whose battery had leaked. This resulted in Bit 3 of the music command to the Z80 always being 0. Perhaps the foam pads on the bottom of the PCB also become conductive with age? Fixed!
Summer Projects: part of my 3-week vacation was spent in hospital for an operation and then resting in bed at home. Still, I had some fun: music drivers in Konami SNES games, where are they in the ROM, how do they get loaded into the SPC, can I hack a sound test into any game? I didn't get very far.