first commit

.gitignore

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+.DS_Store
+backup/
+

Makefile

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+# Makefile contributed by jtsiomb
+
+src = invaders.asm
+
+.PHONY: all
+all: invaders.img invaders.com
+
+invaders.img: $(src)
+	nasm -f bin -o $@ $(src)
+
+invaders.com: $(src)
+	nasm -f bin -o $@ -Dcom_file=1 $(src)
+
+.PHONY: clean
+clean:
+	$(RM) invaders.img invaders.com
+
+.PHONY: rundosbox
+rundosbox: invaders.com
+	dosbox $<
+
+.PHONY: runqemu
+runqemu: invaders.img
+	qemu-system-i386 -fda invaders.img

README

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+
+ ______   __     __         __         __    __     ______     __   __    
+/\  == \ /\ \   /\ \       /\ \       /\ "-./  \   /\  __ \   /\ "-.\ \   
+\ \  _-/ \ \ \  \ \ \____  \ \ \____  \ \ \-./\ \  \ \  __ \  \ \ \-.  \  
+ \ \_\    \ \_\  \ \_____\  \ \_____\  \ \_\ \ \_\  \ \_\ \_\  \ \_\\"\_\ 
+  \/_/     \/_/   \/_____/   \/_____/   \/_/  \/_/   \/_/\/_/   \/_/ \/_/ 
+
+
+Pillman game in 512 bytes (boot sector or COM file)
+by Oscar Toledo G. Jul/08/2019
+
+http://nanochess.org
+https://github.com/nanochess
+
+This a game about a yellow man eating pills in 512 bytes. It can be
+run as a COM file or put into a boot sector of a floppy disk to be
+run.
+
+Move with arrow keys.
+
+It's compatible with 8088 (the original IBM PC). So you now have
+to look for a 8-bit compatible VGA card if you want to run it in
+original hardware ;)
+
+If you want to assemble it, you must download the Netwide Assembler
+(nasm) from www.nasm.us
+
+Use this command line:
+
+  nasm -f bin pillman.asm -Dcom_file=1 -o pillman.com
+  nasm -f bin pillman.asm -Dcom_file=0 -o pillman.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 pillman.img
+
+Enjoy it!

e.bat

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+nasm -f bin pillman.asm -Dcom_file=1 -o pillman.com
+nasm -f bin pillman.asm -o pillman.img
+rem pillman
+