May 16, 2017 · The simplest way to answer your question about what "mov ah,2" is for, its just like using a "cout" statement in C++ , mov ah,2 where 2 represents a function call for printing a …

INT 21h Functions 02h and 06h: Write Character to Standard Output. The difference between Functions 02h and 06h is that the 06h function returns the ASCII code of the character in AL , …

Apr 5, 2013 · The 2nd mov ah, 02h is redundant: int 21h with ah=2 preserves AH (and all other registers except AL, where it returns the character written). A few use the full AX for a return …

# 02H MOV AH, 02H; request display character MOV DL, CHAR; character to display INT 21H - Display character in D2 at current cursor position. The tab, carriage return and line feed …

Mar 3, 2017 · INT 21H means invoke the interrupt (w) identified by the hexadecimal number 21. MS-DOS (or more likely nowadays something emulating MS-DOS) catches invocations to …

02H(21H)# INT 21h / AH=2 - write character to standard output. entry: DL = character to write, after execution AL = DL. example:

After the interrupt, AL contains the ASCII Code of the input character. - Output a character : MOV DL,… MOV AH 02H. INT 21H. Load the desired character into DL, then call the interrupt with …

MOV AH,02H（mov ah 09h) INT 21H. 02h is to output a single character, and 09h is to output a string ending in ‘$’ example: 02h output DATA SEGMENT BUF1 DB 'EEEEEENENEN.' LEN1 …

There are four different functions of INT 21H: INT 21H. These two instructions together will accept one single charactor from keyboard and store it in AL register. These two instructions will …

In this article, we will see different types of data transfer instructions supported by the 8086 microprocessor. We will see the function of each instruction with the help of an assembly …