ASCII-Binary conversion in Assembly Language

 

Algorithm for ASCII-Binary conversion

Step I         :    Get the number whose binary code equivalent is to be found.
Step II        :    Initialize count in CL = 08 H
Step III      :    Divide the number by 2 i.e. shift the number by 1 it to the left.
Step III      :    Display the bit shifted in carry.
Step IV      :    Decrement count
Step V       :    Check if count =0 ?
Step VI      :    If yes go to step  VII else go to step III.
Step VII     :    Stop.

Program Code for ASCII-Binary conversion

 .model small  
 .data  
 a db 0AH  
 .code  
         mov      ax, @data      ; Initialize data section  
      mov      ds, ax  
      mov      al, a             ; Load number1 in al  
      mov      cl , 08H  
      mov      ah, 00h           ; ah=00  
 up :     shl      al, 01h       ; divide the number by 2   
                 and SHL gives the same result         
      mov      bl, al                 
      mov      al, 00H  
      adc      al, 30h  
      mov      dl, al  
      mov      ah, 02h  
      int      21h  
      mov      al,bl  
      dec      cl  
      jnz      up  
      mov      ah, 4cH            ; Terminate Program  
      int      21H  
      end

How to Run this Program
For Running this program you should have installed Tasm on you computer . If you have not installed Tasm  yet please install from Here .