hardware counting while software runs

[sayzer]

.....


main:
if porta.0 !=0 then
pause50
DoSomthing 'is a goto not a gosub
else
endif
goto main


DoSomething:
for x = 50 to 0 step - 1
goto encoder 'another one here
portB.5 low
next x
return

encoder:
Portb.5 high ' to power up encoder
some code here to count encoder subtracting code from var X
return

I guess this was a quick example.
Check "goto" !