PIC's ports individual bits manipulation - how to?

[mister_e]

I should have see it first... You must set the TRIS register, unless those pin are set as input.

MYPORT  var PORTB
Loop    var BYTE
TRISB=0
PORTB.6 = 1 'Test to check port's state change in simulator...

Start:
    for LOOP = 0 to 3
        myport.0[Loop] = 1  'High
        PAUSE 500
        myport.0[loop] = 0  'Low
    next
    goto start
END