Cannot seem to identify error in JNC statement in 8085 assembly

Asked Feb 25 '21 at 19:44

Active Feb 25 '21 at 19:44

Viewed 267 times

I wrote a fairly frugal program to compare 2 numbers , the first JNC statement works fine, the second throws an error, I am using gnusim8085 . Here is my code

MVI B,03H
MVI C,02H
MOV A,B
CMP C
JNC NO_ZERO_1
MOV H,C
NO_ZERO_1: MOV A,C
CMP B
JNC FINAL
MOV H,B
FINAL:HLT

The error being shown is Invalid opcode or pseudo op. Basically I am checking for carry flag only, and moving the greater number to register H

asked Feb 25 '21 at 19:44

RasenRhino

7

Just as a guess, maybe you need a space between `FINAL:` and `HLT`? – Nate Eldredge Feb 25 '21 at 20:31
2

Yikes you are right, should have tried it, much thanks – RasenRhino Feb 25 '21 at 20:37
@RasenRhino Please awrite an answer explaining the error and the solution and mark it as the correct answer. – Massa Feb 26 '21 at 12:01
I would have actually, but it shows the question closed because of typos. The answer is to simply space between FINAL: and HLT. That solves the error of "invalid opcode" – RasenRhino Feb 26 '21 at 14:27

Cannot seem to identify error in JNC statement in 8085 assembly

0 Answers0