Re: A85: Drawing a menu
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Re: A85: Drawing a menu
On Tue, 05 May 1998 16:29:06 EDT, you wrote:
>
>When the cursor is drawn, it inverses seven rows, each 10 bytes across,
>with three bytes on either side. The 112 is the difference of hl at the
>end and hl at the beginning. hl + 7 (16). I don't really understand
>what the code below is supposed to do.
>
all the code does is calculate the beginning address in video memory
of where the cursor should start drawing for you automatically so you
do not have to continually keep track of this value. all you need to
keep track of is the value of the OPTION. you no longer need to do
anything with hl *outside* of this routine.
-mike pearce
References: