Ym2149 chip created by MikeJ in VHDL, compatible with Xilinx and Altera.
Not published, '''YM2149_linmix.vhd''' original version (coming from FPGAmstrad NEXYS4 v0 backup), just a very little patched to run in Amstrad [[FPGAmstrad]] (see "freemac" occurrence in code) :
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