Changes
/* DONE : Stereo sound output */
Sound chip was modified in order to get channel A+B at left, and channel B+C at right.
It was tested OK using [http://www.grimware.org/doku.php/documentations/software/starkos/start STarKos 1.21] sound tracker (track "Carpet")
=== TODO : Source code refactor ===
This project do compile in Xilinx and in Altera, but some files have to be edited each time I switch. That has to be improved.
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