8051 Instructions that Affect Flag Settings

Instructions & Flag Settings

Instruction	Flag
	C	OV	AC
ADD	X	X	X
ADDC	X	X	X
SUBB	X	X	X
MUL	0	X
DIV	0	X
DA	X
RRC	X
RLC	X
SETB C	1
CLR C	0
CPL C	X
ANL C, bit	X
ANL C, /bit	X
ORL C, bit	X
ORL C, /bit	X
MOV C, bit	X
CJNE	X

• Affected flags are marked as X
• X denotes value of the flag
• Note: X can be 0 or 1

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Related topics:
8051 Instruction Set Overview   |   8051 Instruction Cycle   |   8051 Machine Cycle   |   8051 Instruction Set Summary   |   8051 Arithmetic Operation Instructions   |   8051 Logical Operation Instructions   |   8051 Data Transfer Instructions   |   8051 Boolean Variable Manipulation Instructions   |   8051 Program Branching Instructions   |   8051 Instruction Opcode   |   8051 Instructions and Examples

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List of topics: 8051

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