1. Nickname (by shortening) for Dexter.
A 6502 instruction that subtracts 1 from register X, wrapping the value to 255 if it's already zero.
- Function: X--
- Updates flags: S . . . . . Z .
- Opcode numbers:
impl $CA
Similar: DEC | DEY | INC | INX | INY
See also: 6502 instructions | 6502 addressing modes