PROGRAM TO DISPLAY A HEXADECIMAL VALUE IN AX

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.MODEL TINY

.CODE

.STARTUP

MOV AX,345Ah

MOV BX, AX

MOV CH, 4         

PP: MOV AX, BX

       ROL AX,4

       ROL BX,4

       AND AX, 000FH         

       ADD AX, 30H

       CMP AX, '9'

       JBE DP

       ADD AL, 7

DP:        MOV DL, AL

                MOV AH, 2H      

                INT 21H

                SUB CH,1                            

JNZ PP

MOV AH, 4CH

INT 21H

END

Output:

345A