Re: A86: Turning screen black
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Re: A86: Turning screen black
Being A BASIC Programmer, I Designed A Simple Program Which I Stole From
Bits Of TI's Source Code For A Password Program Of Theirs. Here Is The
Source, You Are Welcome To It:
#include "asm86.h"
#include "ti86asm.inc"
.org _asm_exec_ram
call _clrLCD
call _runindicoff
set 3, (IY+5)
ret
.end
On Sat, 21 Nov 1998 17:19:06 EST, ComAsYuAre@aol.com wrote:
>
> In a message dated 11/20/98 11:37:52 PM Eastern Standard Time,
KidFedX@aol.com
> writes:
>
> > What's the best way to turn on all of the pixes on the screen? Is there
a
> > rom
> > Call I can use or a short segment of program?
> > --Thanks
>
> how about this:
>
> ld hl,$fc00 ;video mem
> ld (hl)$ff ;set first byte
> ld de,$fc01 ;second byte of video mem
> ld bc,1023 ;length of screen-1 (first byte taken care of)
> ldir ;turn on all bits on screen
>
> this is untested, but i think it'll work. it uses the same principle as
> clearing the screen (load a 0 into $fc00 instead of an $ff)
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