How to do this in ASM?

[Darrel Taylor]

Kamikaze,

Ok, let's try this one more time. I think this is what you're after. And, since you're using it in an interrupt, it save/restores the FSR so it doesn't interfere with normal PBP operations.

fsave var byte
ASM
    movf    FSR, W       ; save current FSR value
    movwf   _fsave
    movlw   low _array   ; load FSR with address of the array
    movwf   FSR
    movf    _index,W     ; get index value
    addwf   FSR, F       ; add index to FSR
    movf    _my_data, W  ; get my_data.Byte0
    movwf   INDF         ; put it in the array
    movf    _fsave, W    ; restore the original FSR
    movwf   FSR
ENDASM