NettetINT 21H AH = 8H Descripción: La función de esta rutina es esperar un carácter del teclado sin escribirlo por pantalla y almacenarlo en el registro AL en forma de código ASCII. Uso: Entrada: AH = 8H Salida: AL = car cter ASCII de la tecla pulsada Registros afectados: AL Leer una línea de programa INT 21H AH = 0AH Nettet0CH(21H)# INT 21h / AH=0Ch - flush keyboard buffer and read standard input. entry: AL = number of input function to execute after flushing buffer ... mov al, 0 mov bx, handle mov cx, 0 mov dx, 7 mov ah, 42h int 21h ; seek... mov bx, handle mov dx, offset buffer mov cx, 4 mov ah, 3fh int 21h ; read from file ...
BIOS延迟功能的问题(INT 15h / AH = 86h)。 - IT宝库
Nettet28. apr. 2010 · int 10h;名称:DOS中断(int 21h);功能:(ah)=9显示用'$'结束的字符串、(ah)=4ch程序返回;参数:ds:dx指向字符串、(al)=返回值 mov dx,0 mov ah,9 int 21h;调用0C功能清空键盘缓冲区并调用06号键盘功能 mov dl,0ffH mov ah,06H ;** 0ch -> 06h 0ch 功能调用会清输入缓冲区,所以应使用 06h mov al ... Nettet2. mar. 2024 · INT 21H means invoke the interrupt (w) identified by the hexadecimal number 21. MS-DOS (or more likely nowadays something emulating MS-DOS) catches … flights from seattle to ushuaia
Interrupt number 10h (INT 10h) 8086 Microprocessor - Care4you
http://arantxa.ii.uam.es/~gdrivera/labetcii/int_dos.htm 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 … Nettet19. apr. 2024 · AL = number of lines by which to scroll (00h = Clear entire window). BH = attribute used to write Blank lines at bottom of window. CH, CL = row, column of window’s upper left corner. DH, DH = row, column of window’s lower right corner. INT 10h / AH = 08h – read Character and attribute at cursor position. INT 10h. cherry captions