Build 4 – Current Specification As of 7/15/2022, Build 4 has tested successfully with: Both 65C02 and 65C816 up to 10 MHz where I started to get display glitches 524k memory. Current configuration: ~457k RAM ($0000-$F7FF, $20000-$7FFFF), 55 ns ~67k ROM ($F800-$1FEFF), 70 ns 256 bytes I/O ($1FF00-$1FFFF) 65C22 VIA ($1FF10, shift register dedicated to …
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