[FC64] Event-based I/O?

[Rob Eaglestone]

On Fri, Apr 1, 2011 at 12:32 PM, Ralph Hauwert <r.hauwert at gmail.com> wrote:

> Just glancing over for a quick sec (in the middle of dinner believe it or
> not), I think this will cause some problems. There are cases where the
> datalines are abused, as well as doing things like controlling the diskdrive
> by cpu, or using the 1541 6502 cpu as a co processor.  Also thinks like
> fastloaders which twiddle with the bus might go wrong.
>


You're right.  I tried a quick-and-dirty patch of calls to the IO Kernal
routines, and found non-standard things going on for straightforward loads.
 :(



> Events might be emulated with signals, to avoid the overhead of having
> actual objects being spawned for every transaction; for large transfers /
> serial reads etc, this might be major overhead....
>

I admit there are a lot of issues to address that I haven't yet addressed.
 I'm not too worried about object proliferation (at this point), since there
are ways to try to combat it, but then again I am only toe-deep into this.


>
> 2 cents, Ralph.
>

Thank you very much for responding, Ralph.  As much as I would like to see
an IEC bus on the FC64, I find its implementation tedious to the extreme,
and wish there were an elegant solution.



> On Apr 1, 2011, at 6:21 PM, Rob Eaglestone wrote:
>
> > event
>
>
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