Experimental sid support
Space reduction to fit onto a Spartan 6 LX9. Allow disabling stereo and covox. Also replace pokey non-linear table with a piecewise linear function rather than a LUT
Reconnected up the scandoubler on de1. This required sharing the pokey mixer to fix in m4k on de1. Also some work on using better pal/ntsc settings on de1 (not yet working)
Fixed length
switch to signed samples - which replay and sigma delta want!
Mix covox and gtia as if they were pokey channels. Increase precision to allow 8-bit covox channels. Its not clear how gtia and covox really clip with pokey channels - that would need research. For now this improves volume.
Split ROM into its own process, to make it easier for Quartus to infer
Current unmerged vhdl for my Atari800 core and start at merging them into one tree with a common core