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#### 7.7.7 Colour PET

The Colour PET is a simple extension by Steve Gray http://www.6502.org/users/sjgray/projects/colourpet/. It exploits the similarities and differences between the 4032 and 8032 models, to use memory at $8800 as colour RAM.

There are two versions of the extension:

with digital colour (RGBI), which can select 16 foreground and 16 background colours for each character cell. The 8 colour bits are used as RGBI RGBI, with the most significant bits for the background, and the least significant bits for the foreground.

With analog colour, which can use 256 foreground colours for each character cell, the 8 colour bits are used as RRR GGG BB.