ArcEmu 1.50 Alpha is released. ArcEmu is a Acorn A400 hardware emulator that is highly portable, it currently runs on Unix (X Windows), Microsoft Windows, Mac OS X, RISC OS and Amiga OS 4. As it's a hardware emulator it's capable of running multiple operating systems including RISC OS 3.10 and ARM Linux.

ArcEmu v1.50 Alpha Changelog:
- VIDC1 sound support on Amiga, RISC OS & Unix/X11
- Emulation of 512kB, 1MB, 2MB, 4MB, 8MB, 12MB, or 16MB of RAM
- Emulation of 'Extension ROMs' as found in the Acorn A4
- ARM3 emulation
- ArcEm clock set from Host's clock, partial RTC support
- Accurate video and timer emulation
- Display upscaling
- Rectangular pixel aspect ratio correction (RISC OS, Windows & X11)
- Significant performance improvements, making ArcEm run better on slow hardware



Download: ArcEmu 1.50 Alpha
Source: Here