Logiker Christmas Challenge 2023 on the National SC/MP 
otherwise known as INS8060.

Author: Phil_G
Category: Christmas Challenge
System:   Homebrew SC/MP with KitbugPlus monitor
Language: SC/MP Assembler
Len source code: 1574 including comments
Len exe file:    161 bytes
Len code only:   161 bytes
Instructions:
Load at 0x800 using KitbugPlus serial-load command "S800", execute using "G800"
Description:
Uses X-Y cursor positioning to set start of line then cursor right/down for 
southeast diagonals, self-modifies to cursor up and re-runs for northeast lines
Comments: Youtube video:    https://youtu.be/-Rgswcw0TAw