MSX 2022 Christmas Star ROM

Author:          Antonio A. Carrillo "Peluko"
Category:        Christmas Challenge
System:          MSX
Language:        Assembler (sjasmplus)
Len source code: 1797 bytes
Len exe file:    104 bytes
Len code only:   88 bytes

Instructions:

This is a ROM that can be burned into any physical MSX cartridge. So in an
emulator it must be loaded as any other cartridge dump.

For example, it can be run on the online WebMSX emulator,
by going to https://webmsx.org/ and using the 'Cartridge 1' -> 'Load ROM'
button (bottom left corner).

It also has been tested on a real MSX (Sony HB501P) using a floppy disk
emulator and LOADROM.COM.

Description:

It has a bitmap of half of the star as data and then proceses the bits painting
space or asterisk. Once procesed the 8 bits of the left half, then decides if
it must paint an aditional asterisk and reprocess the 8 bits in reverse order
to get the mirrored right half.

Comments:

Merry Christmas and Happy New Year!

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