NASM - The Netwide Assembler
NASM Forum => Website and Forum => Topic started by: mazhar on July 23, 2014, 02:55:50 PM
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hi
please help dear:
Write a program in assembly language which uses BIOS interrupt INT 21 to read current system time and displays it on the top-left corner of the screen.
Following should be the output of your code:
Hint: You can use “printnum” and “clrscr”
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Is that a question? What is it?
(hint: int 21h is not a BIOS interrupt)
Best,
Frank
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yes , this is question for assignment making.
so plzz wrte the programme
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plzzz help me to making assignment:::::::::;;
Computer Architecture and Assembly Language Programming (CS401)
Assignment # 4(Graded)
Total marks = 20
Please carefully read the following instructions before attempting assignment.
Assignment Statement:
Write a program in assembly language which uses BIOS interrupt INT 21 to read current system time and displays it on the top-left corner of the screen.
Following should be the output of your code:
Hint: You can use “printnum” and “clrscr” subroutines
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You're messin' with us, right? Who is this really?
Okay, I'll play along. As a prize for the most optimistic poster I've ever seen, here's the shortest "time" program I know (I don't know who the author is):
; From: qscgz (at) aol (dot) com (QSCGZ)
; display the time , 24 bytes
; nasm -f bin -o tinyclok.com tinyclok.asm
org 100h
segment .text
mov ah,2
int 1ah ; time in BCD , dl=0
push cx
push dx
pop eax
m1:
mov al,163
sub dl,160 ; gives c,c,nc,c,c,nc,c,nc+z
ja $+3 ; h h : m m : s s
rol eax,4
int 29h
jne m1
ret
;------------------
Good luck if you choose to hand this in as your own work. You'll probably get thrown out of the course. I would!
Best,
Frank
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