exidysorcerer.net

Thanks for the heads up, that's very kool !

Cheers,
Leslie

Hi Exidyboy, ..... 4. It does seem that the Drive Select lines are not changing when you use SETDISK to configure multiple drives. T he Drive Select lines A, B, C, D all stay low . So if you have two Goteks they both try and put data on the Read Data line. I may not be fully understanding how SETDIS...

Hi All,

Just came up in my github feed:

https://github.com/gyurco/Sorcerer-FPGA

Haven't taken a good look at it yet, but it may be a worthwhile candidate for porting to MISTer.
(Since I don't have a MIST board)

Cheers,
Leslie

Hi All,

Files courtesy exidyboy.

Had to go through a batch of different executables to rebuild one to match the source code.

Cheers,
Leslie

Also, outputting some values to port 7Fh (OU 7F n) always caused a hang except 0 value; so seems that I need to check this moving the stack just in case the swapped page (if any) is the one with the stack. A warm start brings me back the prompt; but also probably, restores the original paging as I ...

Just having a look at the ESGG Monitor. Most obvious difference is that the 'MO' routine is now smart enough to detect overlaps, and uses LDDR/LDIR as appropriate. Routine which copies the GFX chars to the FC00h area is quite ingenious. Instead of just a block move, it builds the characters on the f...

Hi All, Judging by the schematic, it appears that one of 16 banks of 16KB can be selected for each of the normal 16KB areas == 768KB total (?) Select by writing D3-D0 at port 7Fh (jumper selectable), which controls the top 2 address bits of the DRAMs. Always resets to 00 for A7,A8. Presumably, the m...