Compile Error W/BTFSS

[jbell]

Hi Folks,

I'm really new to assembly programming, so please bear with me if my problems seem trivial.

I'm trying to "Compile To Hex" the attached snippet of code to make a simple timing loop, but it's choking on the BTFSS line. I've come to this conclusion because if I REM the BTFSS line out, it will compile sucessfully.

Any assistance greatly appreciated.

Jim Bell

[medelec35]

Hi Jim,
Registers should be in lower case and preceded with an underscore. its the bit names that are in uppercase.
Try:

Code: Select all

asm
{
WaitLop: movlw    0xFA      //Delay Time
         nop
loopBas: addlw    0xFF      //dec W
         btfss    _status,Z  //Zero flag set?
         bra      loopBas   //  No, keep looping
         nop                //  Yes, done
}

Martin

[jbell]

Martin,

That's got it!

Thanks a lot for your help....

Jim Bell

[medelec35]

Your welcome,
Glad it worked for you.
Thanks for the update.

Martin