Please I need a professional explanation for Matrix EMU8068 code in 3 pages as a word text

; matrix transpose sample (reverse rows with columns).

name "matrix"

org 100h

jmp start ; go to code...

msg db "to the view matrix click vars button,", 0dh,0ah

db " and set elements property to 3 for these items:", 0dh,0ah, 0ah

db " matrix ", 0dh,0ah

db " row1 ", 0dh,0ah

db " row2 ", 0dh,0ah, 0dh,0ah

db "or add print-out support to this program...", 0dh,0ah, '$'

matrix_size equ 3

; ----- matrix ------

matrix db 1,2,3

row1 db 4,5,6

row2 db 7,8,9

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

i dw ?

j dw ?

start:

mov i, 0

next_i:

; j = i + 1

mov cx, i

inc cx

mov j, cx

next_j:

mov si, i

mov bx, j

mov al, matrix_size

mov cx, si

mul cl

mov si, ax

mov dl, matrix[si][bx]

mov si, i

mov al, matrix_size

mul bl

mov bx, ax

xchg matrix[bx][si], dl

mov bx, j

mov al, matrix_size

mov cx, si

mul cl

mov si, ax

mov matrix[si][bx], dl

inc j

cmp j, matrix_size

jb next_j

inc i

cmp i, matrix_size/2

jbe next_i

; print message....

lea dx, msg

mov ah, 9

int 21h

; wait for any key press...

mov ah, 0

int 16h

ret