- Write an assembly program that converts a number in the word variable D, 0 <= D <= 15 to an ASCII character in the byte variable HEXD which is its hex value. For instance, if D = 3 then HEXD = ‘3’ and if D = 14 then HEXD = ‘E’.
TITLE word variable to ASCII character
;----------------------------------------------------------------
.MODEL SMALL
.STACK 64
.DATA
;ACODE DB '0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F'
ACODE DB '0123456789ABCDEF'
VALUE DW 7
INDEX DB 0
HEXVAL DB '?'
;----------------------------------------------------------------
.CODE
MAIN PROC FAR
MOV AX,@DATA
MOV DS,AX
MOV ES,AX
MOV CX,15
LOOP:
MOV AX,CX
CMP AX,VALUE
JE GOT
INC INDEX
DEC CX
JNZ LOOP
GOT:MOV AL,15
SUB AL,INDEX
MOV INDEX,AL
MOV CL,INDEX
INC CL
LEA SI,ACODE
LOOP1:MOV AL,[SI]
MOV HEXVAL,AL
INC SI
DEC CL
JNZ LOOP1
MOV AX,4C00H
INT 21H
MAIN ENDP
END MAIN ;END MAIN PROCEDURE
