4-P2 Modify the following Example to accept a string and display the binary equivalent of the input string. As in the example, the user should be queried about program termination:

Needs to be in ASSEMBLY.

;Binary equivalent of characters BINCHAR.ASM ; ; Objective: To print the binary equivalent of ; ASCII character code. ; Input: Requests a character from keyboard. ; Output: Prints the ASCII code of the ; input character in binary. %include "io.mac" .STACK 100H .DATA char_prompt db "Please input a character: ",0 out_msg1 db "The ASCII code of '",0 out_msg2 db "' in binary is ",0 query_msg db "Do you want to quit (Y/N): ",0

.CODE .STARTUP read_char: PutStr char_prompt ; request a char. input GetCh AL ; read input character nwln PutStr out_msg1 PutCh AL PutStr out_msg2 mov AH,80H ; mask byte = 80H mov ECX,8 ; loop count to print 8 bits print_bit: test AL,AH ; test does not modify AL jz print_0 ; if tested bit is 0, print it PutCh '1' ; otherwise, print 1 jmp skip1 print_0: PutCh '0' ; print 0 skip1: shr AH,1 ; right-shift mask bit to test ; next bit of the ASCII code loop print_bit nwln PutStr query_msg ; query user whether to terminate GetCh AL ; read response nwln cmp AL,'Y' ; if response is not 'Y' jne read_char ; read another character done: ; otherwise, terminate program .EXIT