On 7/18/2018 12:55 AM, Jim Brain wrote: > On a real 6509, if you store $aa at $0 and read it back, do you get > $0a or $aa? Since $0a is the result, I have modified the code to do the following: * on boot, only the bottom 4 bits are active. * Sending a magic write sequence to $1 will enable the high order bits: $55,$aa,$00,$01 * Magic sequence $55,aa,00,00 will turn it off When units is in '816 mode, all bits are presented on pins. The top 4 address pins are available via a header on the v4 PCB. I am awaiting the boards, will test, and then send the v4 to Michal so he can test the Rockwell 65C02 if desired. JimReceived on 2018-07-28 10:02:22
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