IndiaBIX

Digital Electronics - The 8051 Microcontroller - Discussion

Discussion Forum : The 8051 Microcontroller - General Questions (Q.No. 2)
The 8051 Microcontroller
2.
This program code will be executed continuously:
STAT: MOV A, #01H
 JNZ STAT
True
False
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
18 comments Page 1 of 2.
Rajender said:   1 decade ago
Since there is no loop available or there is no INC/DCR is available.
Mahi.. said:   1 decade ago
# represents immediate addressing to A. #01 is an imediate value to A..JNZ jump if not zero will satisfy the condition and continuopusly jmps to stat flag.. its a loop.
Shruti said:   1 decade ago
#01 signifies value..that means 1 is been stored in accumulator..JNZ means jump if not zero. as accumlator has value 1..this process will continue with execution whenevr it checks the condition.
Vikram said:   1 decade ago
First instruction copies the immediate data 01h to A (no flag is effected) , second instruction compares the content of carry flag with zero if it is not equal to zero then it becomes infinite loop otherwise it executes next instruction.
Siva said:   1 decade ago
Any one explain other use of JNZ?
AMAR V. SORATHIYA said:   1 decade ago
If instuction DJNZ used then answer is FALSE.
Shreyas said:   1 decade ago
DCR A instruction should be given after STAT: MOV A , 01H
Vishnu said:   1 decade ago
JNZ instruction checks the Contents of Accumulator(A) register.
it's value is greater than zero every time... because it is not decrmenting. So, the loop will infinitely repeats...
Ramu said:   1 decade ago
jNZ instruction checks the Contents of Accumulator(A) register.
it's value is greater than zero every time... because it is not decrmenting. So, the loop will infinitely repeats...
Abc said:   1 decade ago
JNZ means Jump if Non Zero.
Post your comments here:

Your comments will be displayed after verification.

Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers