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TITLE ø¹Ï
.MODEL SMALL
EXTRN puts:near,indec:near,outdec:near,newline:near
includelib ios.lib
.STACK 100h
.DATA
msg1 DB 'please input original x-coordinate: ',0
msg2 DB 'please input original y-coordinate:',0
msg3 DB 'please input column no.: ',0
msg4 DB 'please input row no.: ',0
msg5 DB 'please press any key to continue: ',0
num1 DW 0
num2 DW 0
num3 DW 0
num4 DW 0
.CODE
begin:
mov ax,@data ; ¢{ds ªìȤÆ
mov ds,ax ; ¢}
mov si,OFFSET msg1 ; ¢{¦L¥X´£¥Ü¦r¦ê
call puts ; ¢}
call indec ; ¿é¤J¤@ÓµL¸¹¼ÆÈ
call newline
MOV num1,ax ;
mov si,OFFSET msg2 ; ¢{¦L¥X´£¥Ü¦r¦ê
call puts ; ¢}
call indec ; ¿é¤J¤@ÓµL¸¹¼ÆÈ
call newline
MOV num2,ax ;
mov si,OFFSET msg3 ; ¢{¦L¥X´£¥Ü¦r¦ê
call puts ; ¢}
call indec ; ¿é¤J¤@ÓµL¸¹¼ÆÈ
call newline
MOV num3,ax ;
mov si,OFFSET msg4 ; ¢{¦L¥X´£¥Ü¦r¦ê
call puts ; ¢}
call indec ; ¿é¤J¤@ÓµL¸¹¼ÆÈ
call newline
MOV num4,ax ;
PUSH DS
MOV AX,0
PUSH AX
;
MOV AH,0 ;SET GRAPHIC MODE
MOV AL,12H ;FOR VGA CARD
INT 10H ;640X480X16colors
;
MOV BL,0 ;SET INITIAL COLOR
MOV CX,num1 ;COLUMN#
MOV DX,num2 ;ROW#
AGAIN:
MOV AH,0CH ;WRITE PIXEL DOT
MOV AL,BL ;SET COLOR
INT 10H
;---------------------------------------------------------------------------------
;-----------------------------------------------------------------------------------
JB AGAIN ;NO -- LOOP
mov si,OFFSET msg5 ; ¢{¦L¦r¦êoutmsg5
call puts ; ¢}
call newline
mov ah,01h ;
int 21h
MOV AH,00h ;SET TEXT MODE
MOV AL,03h ;FOR VGA CARD
INT 10H
mov ah,4ch ; ¢{µ²§ôµ{¦¡
int 21h ; ¢}
END begin
Ans:
INC CX ;INCREMENT COLUMN
CMP CX,num3 ;COLUMN
JB AGAIN ;NO -- LOOP
MOV CX,num1 ;YES - RESET COLUMN
INC BL ;CHANGE COLOR
AND BL,0FH ;LET COLOR WITHIN 0 -- 15
INC DX ;INCREMENT ROW
CMP DX,num4 ;ROW
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(µù: ³â¥zµoµ
mov al,0ffh
out 61h,al
³â¥z°±¤îµoµ
mov al,0h
out 61h,al )
20%
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00000000: 00 10 00 00 1C 00 00 18 - 00 00 18 00 00 18 00 00 ................
00000010: 18 00 00 18 00 00 18 00 - 00 18 04 00 18 0E FF FF ................
00000020: FF 00 18 00 00 18 00 00 - 18 00 00 18 00 00 18 00 ................
00000030: 00 18 00 00 18 00 00 18 - 00 00 18 00 00 18 00 00 ................
00000040: 18 00 00 18 00 00 10 00 - ........
½Ð°Ý¸ÓÀɮצ³´XÓbytes
Ans:72 bytes
4.©Ó¤WÃD¡M½Ð°Ý¸ÓÀɮ׬°þ¤@Ó¦r?
Ans:¤Q
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Ans: «Å§i¬°local
6. ¦³¤@¤º§t²Õ¦X»y¨¥«ü¥O¤§C»y¨¥µ{¦¡¦p¤U:
#include <stdio.h>
#include <dos.h>
void main(void)
{
int i=12,k=5;
asm mov ax,i;
asm sub ax,k;
asm mov k,ax;
printf("%d",k);
}
½Ð°Ý¦¹µ{¦¡°õ¦æ«á·|¦b¿Ã¹õ¤WÅã¥Ü¦óºØµ²ªG?
Ans:7
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9.¦³¤@C»y¨¥µ{¦¡«ü¥O¦p¤U:
outportb(0x30B,0x38);
¸Õ¼g¥X¨ä¬Û¹ïÀ³¤§²Õ¦X»y¨¥µ{¦¡
Ans:
MOV DX, 30BH
MOV AL,38H
OUT DX,AL
10. ¦³¤@C»y¨¥µ{¦¡«ü¥O¦p¤U:
a=inportb(0x300)
¸Õ¼g¥X¨ä¬Û¹ïÀ³¤§²Õ¦X»y¨¥µ{¦¡
Ans:
MOV DX,300h
IN AL,DX
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