12 Aug
2004
12 Aug
'04
9:12 a.m.
On Thu, 12 Aug 2004, Dwight K. Elvey wrote:
Hi Jules
Here is what I've found. It is a disk drive emulator.
Unless a PC is DMA driven, bit banging a floppy is not practical.
Disk I/O without DMA is not practical. But it IS possible.
Consider the PCJr and Tandy 1000, both of which do disk I/O
without DMA on 4.77MHz? machines.