DEC - Decrement
Usage: DEC dest Modifies flags: AF OF PF SF ZF Unsigned binary subtraction of one from the destination. Clocks Size Operands 808x 286 386 486 Bytes reg8 3 2 2 1 2 mem 15+EA 7 6 3 2-4 reg16/32 3 2 2 1 1 - see Instruction Timing
Usage: DEC dest Modifies flags: AF OF PF SF ZF Unsigned binary subtraction of one from the destination. Clocks Size Operands 808x 286 386 486 Bytes reg8 3 2 2 1 2 mem 15+EA 7 6 3 2-4 reg16/32 3 2 2 1 1 - see Instruction Timing