How do you do this in Assembly
Hello..
i'm trying to port the "quadrature decoding" program to assembly.
The original thread is over here.
I'm running into a few problems
1>
coverting "new=PORTB & %11000000" to assembly
Code:
movf PORTB,W
ANDLW 11000000 ;take in portB ,and with 11000000 and store in "W"
movwf _new ;load into "new" variable
The statement ANDLW 11000000 in assembly is written as ANDLW b'11000000'
However it doesnt compile if i put in ANDLW b'11000000'
2>how do i compare 2 variables "old_val = new_val" in assembly?
Thank you