Hi Scott.

#define ab      b'01010101

        movlw   0x03    ;oooooo11
        btfsc   num,0
         movlw  0x0C    ;oooo11oo
        btfsc   num,1
         movlw  0x30    ;0011oooo

        iorwf   var,F   ;xxxxxx11 | xxxx11xx | xx11xxxx
        andlw   ~ab     ;00000010 | 00001000 | 00100000
        xorwf   var,F


WBR Dmitry.


> damn.
>
> #define _ABABABAB b'01010101  ; or whatever
>
>       movlw  0xfc          ; bit 0,1 are low
>
>       btfsc  number,0      ; LSB set?
>        movlw 0xf3          ; bit 2,3 are low
>       btfsc  number,1      ; Bit 1 set?
>        movlw 0xcf          ; bit 4,5 are low
>
>     ; write the _AB_ bit pattern
>       andwf  var,f         ; clear the dest bits
>       xorlw  0xff          ; complement the bit mask
>       andlw  _ABABABAB     ; select the two desired AB's
>       iorwf  var,f         ; write them

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