DEC and INC (16-bit)
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The contents of register pair (BC, DE, HL, or SP) are incremented/decremented.
Instructions
INC BC - $03 - 1 Machine Cycle INC DE - $13 - 1 Machine Cycle INC HL - $23 - 1 Machine Cycle INC SP - $33 - 1 Machine Cycle
DEC BC - $0B - 1 Machine Cycle DEC DE - $1B - 1 Machine Cycle DEC HL - $2B - 1 Machine Cycle DEC SP - $3B - 1 Machine Cycle
Flags
None