2 ms·
accumulator xchange ... y, something stacky perhaps? program counter flagPort non maskable interrupt, interrupt request I'm sure you knew that though, it's
by posterboy 10y ago
accumulator xchange ... y, something stacky perhaps?
program counter
flagPort
non maskable interrupt, interrupt request
I'm sure you knew that though, it's common micro processor nomenclature.
- Two9A 10y agoSpecifically on 6502-derived processors, you have the following registers: Accumulator, X and Y indexes, Stack Pointer, Program Counter, Flags. Of these, only the Program Counter is double-width. Additionally, the zeroth "page" of memory (the lowest 256 bytes) are accessible with a dedicated addressing mode which saves space and time in the program, and can be used as a form of cache.