Assembly Programming Question:

Add 1 or several new lines of code to the program below and tell me where and what it was that you'd added.

; Binary to ASCII (BinToAsc.asm)

; This program converts a 32-bit binary integer to ASCII.

INCLUDE Irvine32.inc

.data

binVal DWORD 1234ABCDh ; sample binary value

buffer BYTE 32 dup(0),0

.code

main PROC

mov eax,binVal ; EAX = binary integer

mov esi,OFFSET buffer ; point to the buffer

call BinToAsc ; do the conversion

mov edx,OFFSET buffer ; display the buffer

call WriteString ; output: 00010010001101001010101111001101

call Crlf

exit

main ENDP

;---------------------------------------------------------

; BinToAsc PROC

;

; Converts 32-bit binary integer to ASCII binary.

; Receives: EAX = binary integer, ESI points to buffer

; Returns: buffer filled with ASCII binary digits

;---------------------------------------------------------

BinToAsc PROC

push ecx

push esi

mov ecx,32 ; number of bits in EAX

L1: shl eax,1 ; shift high bit into Carry flag

mov BYTE PTR [esi],'0' ; choose 0 as default digit

jnc L2 ; if no Carry, jump to L2

mov BYTE PTR [esi],'1' ; else move 1 to buffer

L2: inc esi ; next buffer position

loop L1 ; shift another bit to left

pop esi

pop ecx

ret

BinToAsc ENDP

END main