.model  small
    .stack  100h
    .386
    .data
a   db  1
b   db  2
c   db  3
d   db  4
e   db  5
    .code
    mov ax, @data
    mov ds, ax
    mov al, a
    ;cbw
    ;mov    bx, ax
    mov bl, b
    ;cbw
    add al, bl
    mov bl, al
    imul    al
    cbw
    imul    bx
    cwd
    ;mov    ebx,    eax
    ;mov    al, 2
    ;cbw
    ;imul   bx
    ;mov    cx, ax
    mov al, a
    mov bl, 4
    imul    bl
    cbw
    ;mov    bx, ax
    ;mov    ax, cx
    idiv    bx      ;2((a+b)**3)/4a**2
    ;cwd
    mov cx, ax
    mov bl, c
    mov al, 2
    imul    bl
    cbw         ;c*2
    mov bx, ax
    mov al, d
    imul    ax
    cbw
    sub bx, ax  ;2c-d**2
    ;mov    bx, ax
    mov al, a
    cbw
    imul    bx
    cwd
    mov ebx,    eax
    mov al, e
    ;cbw
    mov dl, al
    mov al, 2
    ;cbw
    imul    dl
    cbw
    mov dx, ax
    mov eax,    ebx
    idiv    dx      ;a(2c-d**2)/2e
    ;mov    esi,    eax
    ;mov    ax, bx
    ;idiv   esi
    add cx, ax
    mov ax, 4c00h
    int 21h
    end