Linux VGA Programming Helloworld

compile_and_run.sh

# pre-requisities: sudo apt-get install libsvga1 libsvga1-dev
gcc -lvga helloworld.c -o helloworld
sudo ./helloworld

# output:
# (on screen: a small red point displaying for 5 sec)
# (on console: [svgalib: allocated virtual console #8])

helloworld.c

#include <stdlib.h>
#include <vga.h>
 
int main(void)
{
   vga_init();
   vga_setmode(G320x200x256);
   vga_setcolor(4);
   vga_drawpixel(10, 10);
 
   sleep(5);
   vga_setmode(TEXT);

   return EXIT_SUCCESS;
}