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# Program to read one of the hex digits A-F, and display it on the next line in decimal

Posted By: Easy Tutor     Category: Assembly Language     Views: 6812

## Code for Program to read one of the hex digits A-F, and display it on the next line in decimal in Assembly Language

``` .MODEL SMALL
.STACK 100H

.DATA
MSG_1  EQU  'Enter the Hex digit (A-F) : \$'
MSG_2  EQU  0DH,0AH,'The corresponding Decimal dgit is : \$'

PROMPT_1  DB  MSG_1
PROMPT_2  DB  MSG_2

.CODE
MAIN PROC
MOV AX, @DATA                ; initialize DS
MOV DS, AX

LEA DX, PROMPT_1             ; load and display PROMPT_1
MOV AH, 9
INT 21H

MOV AH, 1                    ; read the hex digit
INT 21H

MOV BL, AL                   ; save the hex digit into BL

LEA DX, PROMPT_2             ; load and display PROMPT_2
MOV AH, 9
INT 21H

MOV AH, 2                    ; display the first decimal digit i.e. 1
MOV DL, 31H
INT 21H

SUB BL, 11H                  ; convert the character into second digit

MOV DL, BL                   ; display the second digit
INT 21H

MOV AH, 4CH                  ; return control to DOS
INT 21H
MAIN ENDP
END MAIN

;**************************************************************************;
;**************************************************************************;
;------------------------------  THE END  ---------------------------------;
;**************************************************************************;
;**************************************************************************;
```
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