The fbird from nanochess

fbird's Introduction

F-Bird, a text bootsector game.
by Oscar Toledo G. Jun/05/2017

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

Run it as a COM file or write it to the bootsector of a floppy disk.

Press any key to start, gravity makes you to fall, press any key to fly!

This game is written using pure 8088 instructions, so it should work
on an original IBM PC with CGA card. No Hercules support (though it
would be a matter of changing the video segment to B000)

Here is a Youtube video of it running over emulation:

https://www.youtube.com/watch?v=p31XFFAeze4

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

Use this command line:

nasm -f bin fbird.asm -o fbird.com

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 fbird.com

Note that VirtualBox doesn't emulate the PC speaker, so the "flap"
sound doesn't sound at all.

Enjoy it!

>> THE BOOK <<

Do you would like more details on the inner workings? This program
is fully commented in my new book Programming Boot Sector Games
and you'll also find a 8086/8088 crash course!

Now available from Lulu:

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.

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fbird's Issues

Can I use the floppy disk for storage as well as boot from it

I want to be able to boot from the floppy disk into tha game, but also use the remaining space (after the boot sector) for storage. Here's what I tried:
sudo mkfs.fat /dev/fd0; sudo dd if=fbird.com of=/dev/fd0 bs=512 count=1
This lets me boot fbird from the floppy disk but Linux cannot find a filesystem on the floppy disk.

If I do it the other way around:
sudo dd if=fbird.com of=/dev/fd0 bs=512 count=1; sudo mkfs.fat /dev/fd0
I can store files on the floppy disk but cannot boot from it.

How can I make a bootable floppy with a working FAT filesystem I can store files on?

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