Exidy Sorcerer tutorial

[JimmyFromTheBay]

Okay, this one was SO insanely hard and so convoluted I'm kinda proud I got it to work, so here's the shortish version for everyone else. (I'm sure this can be shortened and made more elegant, but it gets the job done.)

1. Install the Sorcerer emulator via Valerino/Folly's MESS fork here: https://retropie.org.uk/forum/topic/29682/development-of-module-script-generator-for-lr-mess-and-mame-standalone

2. Get the sorcerer.zip and sorcererd.zip BIOSes from the latest MAME ROMset.

3. UNZIP them both into home/pi/RetroPie/BIOS. This is important. It doesn't seem to work from the zipped files. This should make the basic machine boot up.

4. Get your game files (the ones I have are WAVs) and load one from EmulationStation. You'll be dumped on the OS screen, which is actually a machine-code monitor.

5. Go into the MESS menu (ScrollLock then Tab), go to BIOS Selection, choose "Standard Monitor 658 ver 1.3/C" and click Reset. The machine will reboot to the OS screen.

6. Go back into the MESS menu, and in File Manager choose your game file as cass1.

7. On the OS screen type LOG. The game should load automatically (1-2 mins). When it's done you'll get a screen like this:

See below where it says "GOADDRS"? Type GO followed by that number. It's nearly always 0100, so type GO 0100.

8. Your game should start! Make a savestate, then all you need to do to play it in future is load the savestate.