Showing posts with label vhdl. Show all posts
Showing posts with label vhdl. Show all posts

Saturday, October 15, 2011

Friday, October 14, 2011

New Speccy 2010 update

This time thank to Syd, the original author of Speccy I got the rights to commit into official Speccy 2010 repository.

Now you can try my version with:
  • added TurboSound (2 AY chips)
  • added fixed point sound mixer 
  • added SounDrive/Covox - various modes 
  • finetuned YM2149 implementation to be fully backward compatible  with AY-3-8910/12 - 4 bit DAC for envelopes, different volume tables - thanks Gasman
  • added preliminary support for Scorpion ZS-256 - put scorpion.rom in /roms dir on SD card
  • added, but turned off SID emulation
  • added NMI key - shift-F12 - used in Scorpion emulation
  • added SID emulation (sic !)
    I know that my code is a lame VHDL quality for now but come on last time I briefly write a 
    model in VHDL was 17 years ago ;) 

    Full version is available here.

    Thursday, September 29, 2011

    Speccy 2010 updated again to support SounDrive/Covox interfaces

    This time in addition to TurboSound it adds SounDrive and Covox support. Supported modes are SounDrive Mode 1, SounDrive Mode 2, Covox #DD,#B3,#FB and Profi/BB55. The volume level is lower whn you turn on the Covos with Turbosound or Ay but this is on purpose to get the full usage of D/A converter and avoid distortions. In case of bugs just let me know.
    Fetch here and enjoy. 

    Saturday, September 24, 2011

    Updated Speccy 2010 ....

    I've spend some time to update the wonderful Speccy 2010 to support a TurboSound interface. I'm not a VHDL masta but this was a rather trivial change and should be ok. Will try to push a Speccy 2010 author to include the patch in next release.

    You can download a patch to rev51 and binary file here or here.