DSP Emulator v0.11b4 WIP (2011/08/04) is released. DSP Emulator is a new version of the ZX SPECTRUM +3, ZX Spectrum 128, ZX Spectrum 48, Arcade, Amstrad CPC 464, NES and Game Boy emulator.

DSP Emulator v0.11b4 WIP Changelog:

04/08 - DSP Emulator 0.11b4 Released Windows binary and source available, last update before 0.12. Big source changes, code cleaning on all arcade drivers. At last 'Galaga' works and updated Galaxian driver fixing many bugs. Added drivers for 'Scramble , 'Super Cobra', 'Amidar' and 'Pengo'. Small updates in Coleco, NES and Amstrad drivers. Big update on Spectrum side, many bug fixes and a new snapshot/tape load window.

Download: DSP Emulator v0.11b4 WIP (2011/08/04)
Source: Here