Andreas Nyholm wrote:
>
> Hi!!
> Can anyone tell me what's wrong with this part of my program??
>
> ; Wait for doors closed AND doors locked.
 WAIT2           MOVF PORTA, W           ; get port A into W
                andlw   b'00000111'
                SUBLW   B'OOOOO100'
                 BTFSS STATUS,Z          ; skip when result is zero
                 GOTO WAIT2
>
If W= 00000100 and you 'AND' it with 00000100 the result will be
00000100, not 0.
Use AND for masking, the way I did it, is that it will only leave RA0,
RA1, RA2 bits in W, then you subtract b'00000100' from it.
Zero flag will be SET if the result of the subtract is zero, so you test
for set and skip.

Hope it helps
Quentin