Snowflake

Author: Pedro Bermejo
Category: Christmas Challenge
System:   Commodore VIC-20 unexpanded
Language: 6502 Assembler (assembled with CBM PRG Studio)
Len source code: 1541 bytes
Len exe file:    106 bytes
Len code only:   91 bytes
Instructions:
Install vice, start with xvic (VIC unexpanded), drag and drop the prg file into it.
It needs to be loaded with ',1' (in other words, Settings->Host->AutoStart->Load to BASIC start(xxxx) from vice Preferences, need to be unchecked)

Description:
Draws the central horizontal line. Then 9 lines above this (using 'Y's read from 'data'). Finally, it replicates these 9 lines symmetrically in the lower part.

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