kurt.woloch@xxxxxxxxx wrote:
> >Ironically, displaying "Hello World" onscreen would require some fairly
> >sophisticated programming no matter how you do it ;) (well, I suppose you
> >could do it with the playfield without a sophisticated kernel, but then it
> >would be Hello Hello World World...)
> Not quite. If you set the playfield to the mode where the foreground colors
> for the left and right halve are the player colors, you could set one of
> them equal to the background color and make the other one stand out of it,
> so the text would only appear once, in one half of the screen. This wouldn't
> have to be very sophisticated...
Uhm... just a quick thought, wouldn't it be possible to do something
like this:
Top:
sta WSYNC ; Finish current line
Lda hello,x ; \
sta PF1 ; \
; > Write 'hello' to the PF
Lda hello+1,x ; /
sta PF2 ; /
Lda world,x ;
Ldy world+1,x ; load 'world' graphics
;... burn x cycles until the 'o' is fully painted
sta PF1 ; Make the space between the 'o' and the 'h' big
sty PF2 ; enough to execute these two store instructions
dex ;
dex ; Point to next lines of graphic data
bne Top ;
Greetings,
Manuel
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