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== Instruction Set ==
The 6502 instruction set consist of a number of single-byte [[OpCode|opcodes]], each of which is followed by 0, 1, or 2 bytes of arguments. Each opcode corresponded to an [[Instruction|instruction]], which consists of an [[Operation|operation]] and an [[6502 Addressing Modes|addressing mode]]. 6502 [[Assembly Language]] uses 3-letter menomics mnemonics to specify the operation, and argument syntax to specify the addressing mode. For example:
LDA #$05 ; load the accumulator with the number 5
* [http://www.6502.org/tutorials/6502opcodes.html 6502 Opcodes with Register Definitions]
* [https://www.masswerk.at/6502/6502_instruction_set.html 6502 Opcodes with Detailed Operation Information]
* [https://www.pagetable.com/c64ref/6502/?tab=2 6502 instructions via the "Ultimate Commodore 64 Reference" site]
* [https://monster6502.com/ MOnSter 6502] - a large-scale, transistor-level implementation of the 6502, with lots of LEDs!