Re: A86: Problem reading ports
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Re: A86: Problem reading ports
you forgot to read in from the ports!
new code!
> ld a,$BF
> out (1),a
nop
nop
in a,(1)
;that code reads in from the port
> bit 5,a
> jr z,Second
> bit 6,a
> jp z,Exit ;heres where it breaks
and personally i like to send the mask out in binary
so i can easly see what row im checking for but you
may like hex better
--- Sam Patterson <neophile_17@hotmail.com> wrote:
>
> This is a read key loop except the loop is broken as
> if exit was pressed
> when it wasn't. I think this is because the mask is
> %10111111 and
> bit six is already missing but I don't know how to
> fix it if it is.
>
> ld a,$BF
> out (1),a
> bit 5,a
> jr z,Second
> bit 6,a
> jp z,Exit ;heres where it breaks
>
> Any help would be appreciated. Thanx.
> ~neophile_17
>
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