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Mov ah 06h int 21h

http://www.weijiyuanli.cn/2642.html Nettet5. aug. 2024 · 格式: MOV AH, 4CH INT 21H 功能:终止当前程序的运行,并把控制权交给调用的程序,即返回DOS系统,屏幕出现DOS提示符,如“C: \ >”,等待DOS命令。 8.直接输入、输出单字符(6号功能调用) 格式: MOV DL, 输入/输出标志 MOV AH, 06H INT 21H 功能:执行键盘输入操作或屏幕显示输出操作,但不检查Ctrl+Break组合键是 …

INT 21h DOS interrupt 8086 Microprocessor - Care4you

NettetINT 21H – DOS Interrupt : MS-DOS provides a lot of functions for displaying and reading the text on the console. The general syntax for calling the function is. MOV AH ; Function number, input parameters. INT 21 H ; return values - Input a character: MOV AH, 01H. INT 21H. After the interrupt, AL contains the ASCII Code of the input character. Nettet10. mar. 2024 · mov dl,0 ;将dl的值设置为0,表示读取的字符是小写字母。 int 21h ;调用dos中断21h,从键盘上读取一个字符。 mov ah,2 ;设置ah=2,表明程序正在将读取的 … prefab art studios with bathroom https://obgc.net

What does "int 21h" mean in Assembly? - Stack Overflow

Nettetmov ah,01h. int 21h. 显示单字符(2号调用) dl, 待显示字符ascall码或’字符’(引号表示) mov ah,02h. int 21h. 显示字符串(9号调用) lea dl, 字符串首地址. mov ah,09h. int 21h. 键盘输入字符串(10号调用) lea dx, 输入缓存区首地址(前提要先定义缓存区) mov ah,0ah. int 21h NettetKeyboard input with echo: This operation accepts a character from the keyboard buffer. If none is present, waits for keyboard entry. It returns the character in AL. 02h. e.g. mov ah,02h. int 21h. Display character: Send the character … NettetINT 21H AH = 9H Descripción: Su función es la de sacar una cadena de caracteres ASCII por pantalla. Uso: Entrada: AH = 9H DS contiene el valor de la dirección del segmento del comienzo de la cadena de caracteres a sacar. DX contiene el offset de dicha cadena en el segmento anterior. scorpion fish fillet

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Category:INT 21h DOS interrupt 8086 Microprocessor - Care4you

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Mov ah 06h int 21h

有关“回车(0AH)”和“换行(0DH)”的问题-CSDN社区

http://spike.scu.edu.au/%7Ebarry/interrupts.html Nettet19. des. 2010 · ah=06h:直接控制台IO; 入口参数:DL=0FFH 表示输入;出口参数:若有输入,al=输入字符,否则al=0

Mov ah 06h int 21h

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Nettet31. mar. 2024 · mov ah, 06h. int 21h. jz inout ;若无,则继续. mov ah,4ch ;否则返回. int 21h. code ends. end start. 接线图如下: 2.实验3-2:自设计试验. 自行设计完成本实验,要求,8255a口工作在方式一输入,b口工作在方式一输出,利用方式一的控制信号,使数据从输入到输出人为可控。 Nettet11. sep. 2024 · code segment assume cs:code start:mov al,10100110b mov dx,283h out dx,al l1: mov dx,282h al,dxword 文档 al,02hjz l1 mov dx,281h al,dxcall delay mov dx,280h out dx,al l2: mov dx,282h al,80hjz l2 jmp l3 loop start l3:mov al,00 mov dx,280h out dx,al mov ah,4ch int 21h delay proc near word 文档 pushcx mov bx,3ffh for1:mov cx,0ffffh …

Nettet11. sep. 2024 · code segment assume cs:code start:mov al,10100110b mov dx,283h out dx,al l1: mov dx,282h al,dxword 文档 al,02hjz l1 mov dx,281h al,dxcall delay mov … Nettetint 21h mov dl,[si+2] ;取个位数送显 or dl,30h mov ah,02h int 21h mov ah,4ch int 21h code ends end start 2. 十进制数转换为七段码。为了在七段显示器上显示十进制数,需要把十进制数转换为七段代码。转换可采用查表法。

Nettet19. apr. 2024 · INT 21h / AH=1 - read Character from standard input, with echo, result is stored in AL. INT 21h Service no. 01h Description Example MOV AH, 1 INT 21h. Skip to content. Sunday, April 2, 2024. Signals and its Classifications; ... INT 21h Service no. 06h: Description: Example MOV AH, 6 Nettetmov dh,0 again: mov al,[si] mov ah,9 int 21h ret disp endp exit: mov ah,4ch int 21h code ends end start 4.6题 code segment assume cs:code start: mov ah,2ch int 21h mov bl,ch mov cl,4 call bcd rol bl,cl 《微型计算机原理及应用》 习题参考答案及实验项目 [第1章] 1.1题 (1)64h (2)dch (3)ech (4)14h 1.2题 (1 ...

Nettet18. feb. 2012 · int 21h ;call DOS next: mov ah,01h ;read keyboard and echo function request int 21h ;call DOS mov cx,offset msg2 ;set up to display message cmp al,0 ;check if extended ascii char jne disp ;no, tack jump mov ah,01h ;read keyboard and echo function request

Nettet8. mar. 2005 · 1、new新建文件——》选择exe assume cs:code, ds:data data segment db 'hello world!', 0dh, 0ah ,'$' ; 换行0dh 加 回车0ah ;enter db 0dh, 0ah ,'$'; 回车换行 data ends code segment start: mov ax,data mov ds,ax. 下面是闰年程序的代码示例:(我将以这个闰年程序演示如何建立lib函数库) data segment ... scorpion fish fillet castNettet9. apr. 2024 · DATAREA ENDS ;***** PROGRAM SEGMENT ;----- MAIN PROC FAR ;MAIN PART OF PROGRAM ASSUME CS:PROGRAM,DS:DATAREA,SS:ST_SEG … prefab archway kitsNettet27. sep. 2024 · What is the use of mov ah,10 in int 21h Mostly we use like mov ah,0a for string input but why mov ah,10? prefab attachment to old houseNettetmov ah, 0 . int 10h . INT 10h / AH = 01h - set text-mode cursor shape. ... INT 21h/06h. INT 21h/07h. INT 21h/09h. INT 21h/0Ah. INT 21h/0Bh. INT 21h/0Ch. INT 21h/0Eh. INT 21h/19h. INT 21h/25h. INT 21h/2Ah. INT 21h/2Ch. INT 21h/35 h. INT 21h/39 h. INT 21h/3A h. INT 21h/3B h. INT 21h/3C h. INT 21h/3D h. INT 21h/3E h. INT 21h/3F h. INT … scorpion fish habitatNettet19. apr. 2024 · INT 21h Service no. 06h: Description: Example MOV AH, 6 MOV DH, ‘a’ INT 21h; output Character. MOV AH, 6 MOV DH, 255 INT 21h; get Character from … prefab australian homesNettet格式: MOV AH, 4CH INT 21H 功能:终止当前程序的运行,并把控制权交给调用的程序,即返回DOS系统,屏幕出现DOS提示符,如“C: \ >”,等待DOS命令。 8.直接输入 … prefab attic hip trussesNettet26. mai 2009 · 入口参数:AH=05H DL=待输出字符的ASCII码 出口参数:无 (6)、功能06H 功能描述:控制台 (如:键盘、屏幕)输入/输出。 如果输入/输出操作被重定向, 那么,将无法判断文件是否已到文件尾,或磁盘已满 入口参数:AH=06H,DL=输入/输出功能选择 出口参数:若DL=00H-FEH,则此功能为输出,DL为待输出字符的ASCII码; … prefab army shelter