Author: Michael Doornbos (imapenguin.com)
Category: Christmas Challenge
System:   C64
Language: 6502 assembler
Len source code: 1484 bytes
Len exe file:    124 bytes
Len code only:   110 bytes
Instructions:
Has BASIC loader. Load and run. Loops forever to RESTORE/RUN-STOP to quit.
Description:
Coded on real hardware with Turbo Macro Pro. Counts backward, bottom right to top left column and then by row and 
uses the kernal plot routine. 

Could have crunched this smaller, but in the interest of making it fun, I was happy with this solution and it's easy 
to follow.