Re: 1541 – two computers, one drive

I've used 128dcr drive on c64 for couple games that trigered 2mhz on 
c128 (kane and livingstone I presume).

There was "some talk program for c64", talk similar as few basic lines 
to make rs232 terminal to talk over device 2,.

That talk offered to chose number 20-27 and you could talk over serial 
devices, but
there was another program, like ram drive on c64 offering 32KB drive 27.
One could load"$",27 on another computer it was a bit faster but much 
slower that 1571 or 1541 with speedloader.
I thinks it were commodores programs.

At that time this was pointless to me, as c64 could not be used and who 
owned two computers back then,
and it offered less space than floppy ?!? Soon after that there was also 
reu ram disk, but I've use it more under cpm
then in c64/128.

I've remembered this as someone say "floppy disk drive to simulate an 
elementary network",
and this gave me an idea that is possible  that developers may have used 
for something.

Basically that idea could be used to create some sort of very slow 
network of c= computers,
so computer could communicate on same line similar as jiffy dos
where two drives could copy between each other without computer.

Again to slow for practical use, except maybe some sid synchronization, 
or some demos over multiple c64 :)

Regard,

Z


On 3/25/20 4:38 PM, Anders Carlsson wrote:
> silverdr_at_wfmh.org.pl wrote:
>> OK - so basically for alternating access, each computer needs to 
>> actively finish the use of the bus with this kind of POKE, right? 
>> Otherwise the bus gets locked. Other than that no side effects are to 
>> be expected? 
>
> Yes, that is how I used it. To be honest I never tried to access the 
> 1541 while it already was busy. Like Jim writes, it might lead to 
> interesting results unless the wiki you linked to is correct and the 
> drive really refuses a second connection while it is in operation. I 
> suppose only trial and error will tell what really works.
>
> Best regards
>
> Anders Carlsson
>
>
>
>