CMP - 8086

Compare two values and sets flags accordingly.
Algorithm:
operand1 - operand2
result is not stored anywhere, flags are set (OF, SF, ZF, AF, PF, CF) according to result.

Syntax

CMP REG,MEM
CMP REG,REG
CMP MEM,REG
CMP MEM,IMMIDIATE

Example

MOV AL, 5
MOV BL, 5
CMP AL, BL  ; AL = 5, ZF = 1 (so equal!)

Output / Return Value

Limitations

Alternatives / See Also

Reference