ISRO-2013-34

Question

In $8086$, the jump condition for the instruction $JNBE$ is?

• A. CF = 0 or ZF = 0
• B. ZF = 0 and SF = 1
• C. CF = 0 and ZF = 0
• D. CF = 0

Answer 1

OPTION C IS CORRECT

http://marin.jb.free.fr/jumps/

Comments

option a ,c both are same na

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a is or

and

c is AND

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yes sorry oversight

Answer 2

Answer C is correct 

JNBE means Jump When condition is Not below AND Not Zero

So,  Zero flag should be False = ZF=0

Carry flag should be False = CF =0

Answer 3

JNBE MEAN NEITHER BELOW NOR EQUAL

EQUAL CAN BE CHECK IF RESULT IS NOT ZERO SO ZERO FLAG MUST BE 0

AND FOR BELOW CARRY SHOULD BE ZERO

HENCE OPTION A