Messages in this thread | | | Date | Mon, 14 Sep 1998 17:10:50 +0000 | From | Neil Conway <> | Subject | Re: NEWSFLASH! Linux ported to Commodore VIC-20!! |
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Alan Cox wrote: > > > fact, it really isn't very different from the "sound card modem" > > stuff (tape adds some funky failure modes that phone lines don't have, > > but that can probably be ignored. Of course, all error-correction has > > to be forward error correction, since it isn't possible to get > > feedback from the receiver. Hmm... if nothing else, this just might > > have enough hack value for someone to do it "just because".) > > At least one of the ZX spectrum emulators supports loading games from > tape via soundblaster
Excellent ;-) IIRC, the Spectrum's input circuitry was just a capacitatively coupled Schmitt trigger, so that's fairly easy to copy in software. They probably just copied the rest from the ROM ;-)
That's one of the other reasons of course that they got dreadful data rates; they used what was effectively a single-bit ADC to read from the tape...
Neil
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