ISE_x86_Microprocessor_Lab/BIN_SRCH.ASM at master · CodesOfAnurag/ISE_x86_Microprocessor_Lab · GitHub

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assume cs : code ,ds : data
data segment
    a db 10h, 12h, 14h, 17h, 20h
    n db n-a
    key db 10h
    msg1 db "Key not found $"
    msg2 db "Key found at "
    pos db ?, "$"
data ends

code segment
start:
    mov ax,data
    mov ds,ax

    mov al,0
    mov dl,n
    dec dl

again:
    cmp al, dl
    ja failed
    mov cl,al
    add al,dl
    shr al,1
    mov ah, 00h
    mov si,ax
    mov bl, [si]
    cmp bl, key
    jae above
    inc al
    jmp again
above:
    je success
    dec al
    mov dl, al
    mov al, cl
    jmp again
failed:
    lea dx, msg1
    jmp display
success:
    inc al
    add al, 30h
    mov pos, al
    lea dx, msg2
display:
    mov ah,9h
    int 21h
    mov ah,4ch
    int 21h
code ends
end start