VCCC 2025 - ASM Snowflake on Apple II Author: Colin Leroy-Mira Category: Christmas Challenge System: Apple II Len source code: 1890 Len exe file: 74 Len code only: 73 Instructions: Run the prebuilt .po disk image with your Apple II emulator of choice, ie: mame apple2e vccc.po Description: The binary is installed on the .po floppy image as a boot sector. The easiest way to test it is to point your emulator of choice to the vccc.po file. The source code will be available at: https://github.com/colinleroy/vccc2025 One quarter of the snowflake is encoded as bits in a nine-byte array. The array is parsed once and the stars output as pairs of pairs, to apply horizontal and vertical symmetry around line 9 and column 9. The two stars at 9,0 and 9,18 are special-cased to avoid having to use more than one byte per line. Comments: Thanks, it was a fun challenge. I can't wait to see how much less bytes can perform the same task!