Simple Disk Fastloader
Date: 2002-01-14 05:05:16

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).



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