assembly - how to print char on the screen -


i try make '#' left side of screen , other side '$' it's not stop on 25*40

.model tiny  .code  .startup    cld   mov ax, 0b800h ;for open screen   mov es, ax       mov di, 0   mov cx, 25*40  ;try divide screen    mov ax, 5c23h   rep stosw    mov ax, 0b800h   mov ds, ax   mov si,0     mov cx, 25*40   mov ax, 6f24h   rep stosw  .exit end 

.model tiny  .code .startup    cld   mov ax, 0b800h ;for open screen   mov es, ax   xor di, di     ; di = 0   mov dx, 25     ; lines counter line_loop:   mov cx, 40   mov ax, 5c23h   rep stosw   mov cx, 40   mov ax, 6f24h   rep stosw   dec dx   jnz line_loop  .exit end

for fun , exercise power of xor you, shorter variant of code (try step on in debugger or head , understand how works):

  ...   xor di, di     ; di = 0   mov dx, 50     ; 50 half-lines fill   mov ax, 5c23h  ; start '#' half_line_loop:   mov cx, 40   rep stosw   xor ax, 3307h  ; 5c23 xor 3307 = 6f24, 6f24 xor 3307 = 5c23   dec dx   jnz half_line_loop   ...

Comments

Post a Comment

Popular posts from this blog

php - How to add and update images or image url in Volusion using Volusion API -

actually have store importing products store product data insert , update image or image url not insert , update. this xml code name datapro.txt. <products_joined> <productcode>3710_012t</productcode> <vendor_partno>eah5450silent/di/1gd3(lp)</vendor_partno> <productname>test product ta</productname> <hideproduct>n</hideproduct> <stockstatus>20</stockstatus> <lastmodified>1/5/2016 10:25:00 am</lastmodified> <lastmodby>2</lastmodby> <productweight>0.9</productweight> <productprice>100</productprice> <productmanufacturer>asus tek</productmanufacturer> <vendor_price>32.69</vendor_price> <numproductssharingstock>0</numproductssharingstock> <categoryids>107</categoryids> <producturl>http://tebkq.mvlce.servertrust.com/productdetails.asp?productcode=3710_012t</producturl>
Read more

javascript - IE9 error '$'is not defined -

Image
<!--[if lte ie 9]><html class="lte9"><![endif]--><!--[if gt ie 9]><html><![endif]--> <!--[if !ie]><!--> <html> <!--<![endif]--> blah blah <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.1/jquery.min.js"></script> <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script> <script src="{{ asset('js/mypage.js') }}" type="text/javascript"></script> </body> </html> when load page, ie9 brings error '$' not defined . how can solve error? +++ mypage.js $(function(){ //when load page, //ie9 tag not moving. $(window).load(function() { $('div.mask').hide(); }); // when click , willshow show. //for not ie 9 if (!$('html').hasclass('lte9')) { var = $('ul.about > li > span.activebtn');
Read more