diamonds1.0

Author: Pedro Bermejo
Category: Christmas Challenge
System:   Commodore VIC-20 unexpanded
Language: 6502 Assembler (assembled with CBM PRG Studio)
Len source code: 3014 bytes
Len exe file:    84 bytes
Len code only:   70 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, options Host->AutoStart->Load to BASIC start(xx)
from vice settings, need to be unchecked)

Description:
Every diamond is created from an structure defining the relative position for every '*'. That is repeated 3 times for every line and, every line, repeated 3 times to draw the final image

Comments:
Taking advantage of some address locations initialized at system startup to reduce a few bytes...