Hello All,
I was wondering if someone could decribe the principles of a simple disk
fast loader scheme for me. I know about schemes which use close timings and
both CLK and DATA to send two bits at a time, but I need a fully synchronous
system to send packets of 256bytes.
What I was thinking was:
* 256bytes packets sent as a bit-stream of 2048bits with none of the usual
"time between bytes" or EOI hand-shaking
* holding off the drive so that bytes are only sent when BAD lines are not
occuring (eg switch off display or sprites) so I can reduce the time per bit
to a minimum (save on need for +43us VIC margin)
What I'm hoping for is a speed up of 3-5 times. Preferably the steps are
more important for the target application, than for specific code (I did see
some info on the Fridge, but my brain failed to comprehend).
Regards,
Nick
PLEASE TAKE NOTE:
The contents of this email (including any attachments) may be
privileged and confidential. Any unauthorised use of the contents
is expressly prohibited. If you have received this email in error,
please advise us immediately (you can contact us by telephone
on +61 8 9441 2311 by reverse charge) and then permanently
delete this email together with any attachments. We appreciate
your co-operation.
Whilst Orbital endeavours to take reasonable care to ensure
that this email and any attachments are free from viruses or other
defects, Orbital does not represent or warrant that such is explicitly
the case
(C) 2000: Orbital Engine Company (Australia) PTY LTD and its
affiliates
Message was sent through the cbm-hackers mailing list
Archive generated by hypermail 2.1.1.