15 Nov
2013
15 Nov
'13
12:12 a.m.
Bruce asked:
> Anyone out there want to help try to assemble to
binary and test on an Apple ][ or emulator?
Will this work on an emulator? The Disk ][ controller had different
PROMs for 13 sector vs 16 sector operation. It was kinda traumatic
back in the day when everyone had to switch.
For that matter, you'll have to get some blank PROMs to de-upgrade a
real Apple disk controller in a real Apple. They are MMI 6309 types -
256x8. Other chips of the same pinout from other vendors should work.
-ethan