Write graphics pixels in 16-bit assembly

Question

I\'m trying to develop my own very basic operating system for educational purposes. While coding the kernel, I tried to set color to some pixels on screen to make it look be

Answer 1

The following code displays, a pixel, in red. Color, nr, 4 namely. You must compile it with NASM, then it works.

mov ax,13h        
int 10h             
mov ax,0A000h        
mov es,ax             
mov ax,32010          
mov di,ax             
mov dl,4             
mov [es:di],dx        
int 10h