__  __                __ 
   / / / /__  ____ ______/ /_
  / /_/ / _ \/ __ `/ ___/ __/
 / __  /  __/ /_/ / /  / /_  
/_/ /_/\___/\__,_/_/   \__/  
                             
Heart drawing using heart curve equation
by Oscar Toledo G. Feb/14/2021

http://nanochess.org
https://github.com/nanochess

A small demo program drawing a heart using this equation:

    x=16*pow(sin(t),3);
    y=13*cos(t)-5*cos(2*t)-2*cos(3*t)-cos(4*t);

If you want to assemble it, you must download the Netwide Assembler
(nasm) from www.nasm.us

Use this command line:

  nasm -f bin heart.asm -Dcom_file=1 -o heart.com
  nasm -f bin heart.asm -Dcom_file=0 -o heart.img

Tested with VirtualBox for Mac OS X running Windows XP running this
game, it also works with DosBox and probably with qemu:

  qemu-system-x86_64 -fda heart.img

Enjoy it!


>> THE BOOK <<        

My book Programming Boot Sector Games is available from Lulu
and Amazon, including an 8086/8088 crash course:

  Soft-cover
    http://www.lulu.com/shop/oscar-toledo-gutierrez/programming-boot-sector-games/paperback/product-24188564.html

  Hard-cover
    http://www.lulu.com/shop/oscar-toledo-gutierrez/programming-boot-sector-games/hardcover/product-24188530.html

  eBook
    https://nanochess.org/store.html

These are some of the example programs documented profusely
in the book:

  * Guess the number.
  * Tic-Tac-Toe game.
  * Text graphics.
  * Mandelbrot set.
  * F-Bird game.
  * Invaders game.
  * Pillman game.
  * Toledo Atomchess.
  * bootBASIC language.

Also search for More Boot Sector Games ;)