Intel 8XC251SP, 8XC251SA manual CMP Rm,@DRk Binary Mode Source Mode Bytes States Encoding, CPL a

INSTRUCTION SET REFERENCE

CMP Rm,@WRj
	Binary Mode	Source Mode
Bytes:	4	3
States:	3	2
[Encoding]
1 0 1 1	1 1 1 0	t t t t	1 0 0 1

s s s s

0 0 0 0

Hex Code in: Binary Mode = [A5][Encoding] Source Mode = [Encoding]

Operation: CMP

(Rm) – ((WRj))

CMP Rm,@DRk

Binary Mode Source Mode

Bytes:	4	3
States:	4	3
[Encoding]
1 0 1 1	1 1 1 0		u u u u	1 0 1 1

Hex Code in: Binary Mode = [A5][Encoding]

Source Mode = [Encoding]

s s s s

0 0 0 0

Operation: CMP

(Rm) – ((DRk))

CPL A

Function: Complement accumulator

Description: Logically complements (Ø) each bit of the accumulator (one's complement). Clear bits are set and set bits are cleared.

Flags:

	CY	AC		OV	N	Z
	—	—		—	✓	✓
Example:
	The accumulator contains 5CH (01011100B). After executing the instruction
	CPL A
	the accumulator contains 0A3H (10100011B).
	Binary Mode	Source Mode
Bytes:	1		1
States:	1		1

[Encoding]

1 1 1 1

0 1 0 0

A-49