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mg_notes:iie_card:weird_stuff [2017/08/07 22:25] M.G. Slot scan/select description. |
mg_notes:iie_card:weird_stuff [2018/12/21 17:48] M.G. [Weird Beep] |
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| - | $02 is a two-byte NOP on the 65C02. Interestingly enough, when the processor on the Card executes the sequence $02 $01, it produces the configured beep sound. | + | $02 is a two-byte NOP on the 65C02 (if it was an '802 or '816 it'd be a COP). Interestingly enough, when the processor on the Card executes the sequence $02 $01, it produces the configured beep sound. |
| Try this in the monitor: | Try this in the monitor: | ||