Thread: Control-C, etc
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Old 13th Jun 2021, 4:27 pm   #16
TonyDuell
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Join Date: Jun 2015
Location: Biggin Hill, London, UK.
Posts: 5,190
Default Re: Control-C, etc

I've looked in the Apple //e technical reference manual (a hardback book...) and alas while it contains the circuit diagrams for the various types of motherboard, it does not include diagrams of the keyboard PCB itself. However the reset pin of the 6502 (etc) processor is connected to the keyboard connector and the manual does state that the reset key does not return a keycode, it directly resets the processor when pressed along with <ctrl>. The open-apple and closed-apple keys are sensed by being connected to a couple of input port lines (the 'games port' inputs on the Apple ][), I've not bothered to read through the ROM source in said manual to see what they do.

If anyone really wants to know what the reset key does I can dig out my //e, take it apart and trace out the reset section of the keyboard pcb. But only if it's essential.
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