Lesson du jour: check your PASM jump destination labels!!

MJHanagan

I have banged my head for may hours this afternoon trying to track down an intermittent bug in some really simple PASM code. At the end I had more lines of debugging code than loopholes in the Federal tax code. I was just now typing up a plea for help from the forum when I discovered I had made a rookie error by forgetting a "#" in front of a destination label in a jump instruction. Sure enough, the very last line of code was "jmp WaitLoop", not "jmp #WaitLoop". For the most part the code work just fine with this error, but once in a while it would drift off to la la land and never come back. I'm baffled why the code works initially then seemingly at random it wigs out. It was very frustrating.

Lesson du jour: check your PASM jump destination labels!!

Phil Pilgrim (PhiPi)

I always do a final scan using "Find" on all the jump instructions to make sure I've included the #.

-Phil

ErNa

Welcome in the club! ErNa

Ale

It seems that the old gotchas never go away... There is an assembler tricks and traps somewhere here, really worth a read

Nice to "see" you again ErNa !

Cluso99

Thats one of the nice features of bst - it gives a warning for missing #.

tonyp12

So why does not the IDE simple help you here?
It should scan text as you type it and look for labels and if 99% of the time you should use # when it pop up a note.

kwinn

Cluso99 wrote: »

Thats one of the nice features of bst - it gives a warning for missing #.

Hope that feature makes it into the the new software. Even better if it checks the line as it is entered.

That has to be the mistake I make most often.

JDat

Cluso99 wrote: »

Thats one of the nice features of bst - it gives a warning for missing #.

... and use PASD for debugging.