*[https://www.pagetable.com/c64ref/6502/?tab=2 6502 Family CPU Reference]
*[https://llx.com/Neil/a2/opcodes.html The 6502/65C02/65C816 Instruction Set Decoded]
*[[Media:SY6500 - SY65C02 datasheet.pdf]]- provides a detailed breakdown of the machine cycles
*[[Media:6502 (65xx) Microprocessor Instant Reference Card.pdf]]
*[[Media:6502-dead-cycles.pdf]]