furnace/doc/7-systems/pet.md

# 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...

## effects

- `10xx`: **set waveform.**
  - `xx` is a bitmask.

## info

this chip uses the [PET](../4-instrument/pet.md) instrument editor.
system doc work 2022-03-22 05:58:07 +00:00			`# Commodore PET`

			`a computer from 1977 which was leader on US schools back then. subsequently the Apple II took its throne.`

Making requested fixes. Fixed those dashes and that pesky semicolon. 2023-06-29 19:42:36 +00:00			`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.`
system doc work 2022-03-22 05:58:07 +00:00
			`some of these didn't even have sound...`

only one header per doc file 2023-09-11 00:34:13 +00:00			`## effects`
system doc work 2022-03-22 05:58:07 +00:00
doc finalization: systems 2023-09-10 06:44:29 +00:00			- `10xx`: set waveform.
			- `xx` is a bitmask.
Documentation stuff! New page for the effect list, updates to chanOsc, and links to instrument types from every "system" page. 2023-08-04 16:11:53 +00:00
only one header per doc file 2023-09-11 00:34:13 +00:00			`## info`
Documentation stuff! New page for the effect list, updates to chanOsc, and links to instrument types from every "system" page. 2023-08-04 16:11:53 +00:00
Teensy formatting change. None of these should be list items. It was a bad idea. 2023-08-04 16:38:05 +00:00			`this chip uses the [PET](../4-instrument/pet.md) instrument editor.`