assume cs:code, ds:data

data segment
    a db 5 xor 15, -19, 1 LT 255, offset bx, seg bx
    b dw b + 1, 5abh, b - 1
    c dd a[2], 77h, 55h
data ends

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

    mov ax, 4c00h
    int 21h
code ends
end start