Re: A86: Re: Key Presses
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Re: A86: Re: Key Presses
>From what you have there, yes you would. And you can actually optimize the
<cp 1 \ jr c> to <or a \ jr nz> I believe.
> if you this the following code, wouldnt you also have to ld ($c008),a
after
> out(2),a?
>
> up:
> ld a,($c008) ;load contrast into a
> cp 31 ;see if it's top
> jr z,getkey ;if it is go back to the getkey loop
> inc a ;if it isn't, increment it
> jr changecont ;get another key
> down:
> ld a,($c008) ;"
> cp 1 ;see if it is-
> jr c,getkey ;less than one, and go to getkey loop if so
> dec a ;else decrement it
> changecont:
> out (2),a ;actually change the contrast
>
>
References: