Nettet17. mar. 2024 · Video Screen Operations • Screen Display with INT 21h – functions 02h to display a character – function 09h to display a string • Setting the cursor position on the … 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. ... AL = number of input function to execute after flushing buffer (can be 01h,06h,07h,08h, or 0Ah – for other values the buffer is flushed but no input is attempted); ...
BIOS 中断向量表 - jadeshu - 博客园
Nettet23. mar. 2024 · int 21h,9 is DOS "stdout"-like, having its own cursor, so it will print next string after previous. If you want just to draw on screen in text mode without bothering with BIOS and DOS interrupts and the complex logic behind them, you can write directly to B800:0000 video ram. – Ped7g Mar 13, 2024 at 2:18 Add a comment 1 Answer Sorted … NettetINT 06h CPU:非法指令。 INT 07h CPU:没有 数学协处理器 时尝试执行浮点指令触发。 INT 08h IRQ0:可编程中断控制器每 55 毫秒触发一次,即每秒 18.2 次。 INT 09h IRQ1:每次键盘按下、按住、释放。 INT 0Ah IRQ2: INT 0Bh IRQ3: COM2/COM4 。 INT 0Ch IRQ4: COM1/COM3 。 INT 0Dh IRQ5:硬盘控制器(PC/XT 下)或 LPT2 。 … settling point theory definition psychology
L’OEIL on Instagram: "C’est reparti pour un tour! JEUDI 21h - 03h ...
Nettet6 INT 10h AH=0Eh - Función TeleType 7 Véase también 8 Enlaces externos Características [ editar] Esta interrupción se utiliza básicamente para mostrar texto en la pantalla (sin llamar a la INT 21h de MS-DOS o INT 80h de linux), para cambiar a modo gráfico, para establecer la paleta de colores, etc... Lista de funciones soportadas [ editar] Nettet14. mar. 2024 · .code mov ax, @data mov ds, ax ; input the first character mov ah, 09h lea dx, msg1 int 21h mov ah, 01h int 21h mov char1, al ; input the second character mov ah, 09h lea dx, msg2 int 21h mov ah, 01h int 21h mov char2, al ; calculate the sum of ASCII codes mov al, char1 add al, char2 mov sum, al ; output the result mov ah, 09h lea dx, … NettetINT 21h / AH=0Ch - flush keyboard buffer and read standard input. entry: AL = number of input function to execute after flushing buffer (can be 01h,06h,07h,08h, or 0Ah - for … the toad weed