INC

INC

INC - increment the value in a memory address.

Description

INC increments (adds one to) the current value in a memory location.

Flags affected
N	Z	C	I	D	V
+	+	-	-	-	-

Addressing Mode	Assembly	OpCode	No. Bytes.	No. Cycles
Zero Page	INC Oper	e6	2	5
Zero Page, X	INC Oper, X	f6	2	6
Absolute	INC Oper	ee	3	6
Absolute, X	INC Oper, X	fe	3	7

Examples

Example of Use

Assuming that the value $1F (31) was stored in memory address $0400 (1024), this use of INC would add one to it, resulting in $20 (32):

INC $0400

Related Pages

• DEC - decrement a memory location
• INA - increment the accumulator (not available on standard 6502 microprocessor)
• INX - increment X
• INY - increment Y