MFP - assignment2

1. sum 16bit
data segment
    n1 dw 120Ah
    n2 dw 1100h
data ends
code segment
assume cs:code,ds:data
    mov ax,data
    mov ds,ax
    mov ax,n1
    mov bx,n2
    add ax,bx
    add si,ax
    int 03
code ends
end

2. sum 32bit
data segment
    n1 dd 12000011h
    n2 dd 11000022h
    result dd ?
data ends
code segment
assume cs:code,ds:data
    mov ax,data
    mov ds,ax
    lea si,n1
    lea di,n2
    lea bx,result
    mov ax,[si]
    add ax,[di]
    mov [bx],ax
    mov ax,[si+2]
    add ax,[di+2]
    mov [bx+2],ax
    int 03
code ends
end

3. mul unsigned
data segment
    n1 dw 0005h
    n2 dw 0011h
data ends
code segment
assume cs:code,ds:data
    mov ax,data
    mov ds,ax
    mov ax,n1
    mov bx,n2
    mul bx
    int 03
code ends
end

4. mul signed
data segment
    n1 dw 10ffh
    n2 dw 1004h
data ends
code segment
assume cs:code,ds:data
    mov ax,data
    mov ds,ax
    mov ax,n1
    mov bx,n2
    imul bx
    int 03
code ends
end

5. div signed
data segment
    n1 dw 0fff3h
    n2 dw 0005h
data ends
code segment
    assume cs:code,ds:data
    mov ax,data
    mov ds,ax
    mov ax,n1
    mov bx,n2
    idiv bx
    int 03
code ends
end

6. div unsigned
data segment
    n1 dw 0015h
    n2 dw 0007h
data ends
code segment
    assume cs:code,ds:data
    mov ax,data
    mov ds,ax
    mov ax,n1
    mov bx,n2
    div bx
    int 03
code ends
end

7. copy array
data segment
    source db 12h,13h,45h,97h,78h
    dest db 5 DUP(?)
data ends
code segment
    assume cs:code,ds:data
    mov ax,data
    mov ds,ax
    mov cl,00h
    lea si,source
    lea di,dest
    till:
    mov bl,byte ptr[si]
    mov byte ptr [di],bl
    inc si
    inc di
    cmp si,05h
    jnz till
    int 03
code ends
end

8. array sum
data segment
    source db 12h,13h,45h,97h,78h
    result dw ?
data ends
code segment
    assume cs:code,ds:data
    mov ax,data
    mov ds,ax
    mov cl,00h
    lea si,source
    mov ax,00h
    till:
    mov bx,0000h
    mov bl,byte ptr[si]
    add ax,bx
    inc si
    cmp si,05h
    jnz till
    mov [result],ax
    int 03
code ends
end


//images : https://imgur.com/gallery/YWzgIU2