Simple pattern for 13h DOS

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me239

Joined: 06 Jan 2011
Posts: 200

me239

Hey guys, I'm back. Can anyone tell me where I can find some really simple pixel patterns to display in 256 color DOS?

12 May 2011, 03:41

mindcooler

Joined: 01 Dec 2009
Posts: 423
Location: Västerås, Sweden

mindcooler

x xor y

12 May 2011, 09:26

LocoDelAssembly
Your code has a bug

Joined: 06 May 2005
Posts: 4624
Location: Argentina

LocoDelAssembly

I was curious:

Code:

org $100

mov ax, 13h
int $10
mov ax, $A000
mov es, ax

xor bx, bx
mov cx, 320*200
xor dx, dx
xor di, di

@@:
mov al, bl
xor al, dl
stos byte [es:di]
inc bx
cmp bx, 320
sbb ax, ax
and bx, ax
not ax
sub dx, ax
loop @b

xor ax, ax
int $16

mov ax, 3
int $10

int $20

(It looked prettier when run in full screen mode outside DosBox in my WinXP 32-bit)

12 May 2011, 18:04

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