I need a professional explanation for color emu8086 code, in 3 pages as a word text

; this sample prints 16x16 color map,

; it uses all possible colors.

name "colors"

org 100h

; set video mode:

; text mode. 80x25. 16 colors. 8 pages.

mov ax, 3

int 10h

; blinking disabled for compatibility with dos,

; emulator and windows prompt do not blink anyway.

mov ax, 1003h

mov bx, 0 ; disable blinking.

int 10h

mov dl, 0 ; current column.

mov dh, 0 ; current row.

mov bl, 0 ; current attributes.

jmp next_char

next_row:

inc dh

cmp dh, 16

je stop_print

mov dl, 0

next_char:

; set cursor position at (dl,dh):

mov ah, 02h

int 10h

mov al, 'a'

mov bh, 0

mov cx, 1

mov ah, 09h

int 10h

inc bl ; next attributes.

inc dl

cmp dl, 16

je next_row

jmp next_char

stop_print:

; set cursor position at (dl,dh):

mov dl, 10 ; column.

mov dh, 5 ; row.

mov ah, 02h

int 10h

; test of teletype output,

; it uses color attributes

; at current cursor position:

mov al, 'x'

mov ah, 0eh

int 10h

; wait for any key press:

mov ah, 0

int 16h

ret