696 B
696 B
Commodore PET
a computer from 1977 which was leader on US schools back then. subsequently the Apple II took its throne.
maybe no better than a computer terminal, but somebody discovered a way to update the screen at turbo rate - and eventually its sound "chip" (it was nothing more than an 8-bit shift register) was abused as well.
some of these didn't even have sound output, leaving the user to solder in a speaker on their own...
effects
10xx: set waveform.xxis a bitmask representing a pattern of on-off pulses. it has nothing to do with wavetable assets, which can't be used by the PET.
info
this chip uses the PET instrument editor.