Re: A85: Drawing a menu


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Re: A85: Drawing a menu




this can be done quite easily.
 ...
 ld a,$FF
 ld bc,1024 - 1
 ld hl,$FC00
 call CopyByte
 ...

;hl points to starting mem addr.
;a has character
;bc has # of bytes-1 to store
CopyByte:
 ld d,h
 ld e,l
 inc de
 ld (hl),a
 ldir
 ret

-mike pearce

On Tue, 5 May 1998 15:21:03 -0400, you wrote:

>
>This brought up a question I am wondering.  Is there a way to set an
>entire range of memory to a specific value?  I think there is an
>assembler opcode that does this for the 8086.  It's very fast for
>clearing the screen to a certain color.  For the calc it might be useful
>if you want to have a black background.
>
>egillespie@juno.com
>erik_gillespie_1096@gwgate.kvcc.edu
>
>"In a prototypical world, nothing ever goes wrong." -Scott Meyers
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