using inline assembly in C++

[abdul]

I tried the following code to plot a pixel on the screen using asm but it shows me that shi*ty blue screen, and just terminates:

#include <iostream.h>

int main()
{
    __asm{
        mov ax,13h               ;mode = 13h                      
    int 10h                 ;call bios service

    mov ah,0Ch              ;function 0Ch
    mov al,4                ;color 4 - red
    mov cx,160              ;x position = 160
    mov dx,100              ;y position = 100
    int 10h                 ;call BIOS service

    xor ax,ax               ;function 00h - get a key
    int 16h                 ;call BIOS service
    mov ax,3                ;mode = 3
    int 10h                 ;call BIOS service

    mov ax,4C00h            ;exit to DOS
    int 21h
    }
    return 0;
}