12 lines
		
	
	
		
			436 B
		
	
	
	
		
			Markdown
		
	
	
	
	
	
			
		
		
	
	
			12 lines
		
	
	
		
			436 B
		
	
	
	
		
			Markdown
		
	
	
	
	
	
| # 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.
 | 
