3 ms·
This is why I'm emphasizing MOS 6502. I'm well-familiar with the most popular alternative, WDC's 65C02, where all of the undocumented opcodes execute as NOP wit
by daneel_w 3y ago
This is why I'm emphasizing MOS 6502. I'm well-familiar with the most popular alternative, WDC's 65C02, where all of the undocumented opcodes execute as NOP with no changes to internal registers/flags or to memory, but with one or two harmless side effects on timing behavior.