6502

a absolute accumulator add address addressing addressing-mode and arithmetic asm assembly assembly-language beginner binary branch byte carry-flag cheat-sheet classic clear compare computer console cpu decimal decimal-flag decrement documentation easy emulator equal exclusive faq flag general-register getting-started graphics hello-world hex immediate increment indexed-addressing index-register instruction interrupt interrupt-flag jargon jump left load logical-operation math memory memory-address microprocessor negative negative-flag novice number opcode or overflow-flag processor program-counter reference register screen set shift software stack stack-pointer status-register store _stub subroutine term tool tutorial video-game wiki-list x y zero-flag zero-page zero-page-addressing