Christopher Phillips wrote:
> Should be any that support M-W and M-E, has a page I can use
> for code at 0x500, ...
A wild idea: How much does the hardware of the PET disk drives vary?
Would a custom routine that runs on the DOS CPU work on all types of
drives ([234]040, 8[02]50 and 90[69]0)? Of course, the protocol would
transfer at least whole bytes at a time (more than that, if the
handshaking lines can be misused for transfers).
> True. I will tidy up my own code a little first though.
But don't look at the protocol the IRQ loader uses. It tolerates
arbitrary pauses on the computer side, but it has very bad throughput.
>>Have you looked at the cbmlink null-modem protocol?
[...]
> I should look at SerialSlave first as I already have the hardware ;-)
Maybe I haven't pointed it out clearly enough, but the current version
of cbmlink supports also 6551 based null modem connections (3 wires:
GND, TxD and RxD) on POSIX termios and on Win32. I have tested it on
the plus/4 and on the CBM 720 (a.k.a. high-profile B-256), but I don't
have a SwiftLink-like 6551 cartridge for the C64/C128 I could test it with.
[C2N232]
> I'd be interested in testing it
In that case, send me your address. After all, I wouldn't have invented
it if I hadn't visited your place.
Marko
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