SFPoke

Author: Carlo Luciano Bianco (CLuB77)
Category: Christmas Challenge
System:   Commodore C64
Language: BASIC v2
Len source code: 136 bytes
Len exe file:    129 bytes
Len code only:   127 bytes

Instructions:
Install vice, run x64sc, drag and drop the prg file into it.

Description:
Cycle X runs over the different columns of the image and the cycle Y runs over the different lines. By evaluating each X and Y it is decided if a * must be printed in that location. Then the value 42 is written into the screen memory locations corresponding to both (X,Y) and (Y,X) since the figure is symmetric.

Comments: