> ] Whow, that's news (not).
> ] You need to add 7 T-states of wait (usually an LD A,n) between two OUTs.
> ] However, OTIR itself is that slow the wait is already included.
> So, you can make a faster transfer for ADVRAM, with something like:
> loop:
> ldi
> ldi
> ldi
> ldi
> ldi
> ldi
> ldi
> jp pe,loop
> Now, you win a lot of time, since the ldi is faster then ldir. You can not
> use this trick with oti, since the VDP will not keep up with the speed.
I don't know about port #98, but I always send my VDP commands using OUTI's
(not oti, btw)... But then again, if I remember correctly the minimum wait
for ports #9A and #9B was only 4 T-states.
~Grauw
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