Help with six digit score

[+atari2600land]

So I have the following code:

        lda (DigitThousands),y     
        sta GRP0                    
        lda (DigitHundreds),y       
        tax                         
        lda (DigitTens),y          
        sta Temp2               
        lda (DigitOnes),y     
        ldy Temp2                   
        stx GRP1                   
        sty GRP0                   
        sta GRP1                   
        sta GRP0                   

This is okay for a four digit score, but I would like a six-digit score. What do I do to make this a six-digit score?

[+splendidnut]

Here's a chunk of code that contains the draw loop and the necessary TIA register setup (set sprite 3-copy mode, and center the display) for a 6 digit score (48 pixel wide) display.

 

It uses 14 bytes of RAM, 12 for the score digit graphics pointers and 2 temporary variables for the draw loop (one as a counter, the other as a temporary data store).

 

I've put comments on the graphics pointer variables (scorePtr1 .. scorePtr6) indicating which score digit they correspond to.

 

score48pix.asm

 

Hope this helps.

[+Karl G]

It took me a bit to wrap my head around the 6-digit score / 48-pixel routine in terms of timings, etc, so I did a write-up of how it works on Andrew Davie's wiki. Here's the link in case it might be useful:

 

http://www.taswegian.com/WoodgrainWizard/tiki-index.php?page=48-pixel-Image-Routine

[+atari2600land]

Thanks! I got it working now.