; 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