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FLASH.ASM
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Assembly Source File
|
1990-03-25
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576b
|
22 lines
title FLASH.ASM
;Copyright (C) 1990 by B. Simon and R. M. Wilson, all rights reserved.
onlyseg segment
assume cs:onlyseg
begin: ;DO NOT RUN FROM DOS!!
mov es,ds:[40h] ;STACKEY stores the segment of the screen
call xorscreen ; memory at word ptr ds:[40h].
xor cx,cx
here: loop here
xorscreen: mov cx,8192
mov si,1
lp: xor byte ptr es:[si],07FH
inc si
inc si
loop lp
ret
onlyseg ends
end begin