RPCEmu Spoon Edition

RPCEmu Spoon Edition is the continued development of the popular RPCEmu Acorn machine emulator by Tom Walker. It emulates an Acorn RiscPC and A7000.

• Introduction
• Documentation
• Downloads
• Release Notes
• Developer Information

RPCEmu Spoon Edition allows you to emulate classic Acorn systems, such as the Risc PC and A7000, on multiple platforms including Windows, Linux and Mac OS X

RPCEmu Spoon Edition requires a RISC OS ROM image to work, find details of where to find one.

RPCEmu Spoon Edition should be considered Alpha Quality code. It has many known and unknown bugs, and all files used with it should be well backed up before using them with RPCEmu.

The following documents are available here.

• User Manual - All platforms.
• Using ROOL RISC OS 5.15 - All platforms.

If you have any questions or need help, there is a RPCEmu Mailing List, however please specify 'RPCEmu Spoon Edition' and the version number to avoid confusion. Your patches, suggestions and even bug reports are gratefully recieved.

Binary Packages (Version 0.8.6)

Source Code (Version 0.8.6)

Contributed Builds

Previous Releases

Additional Downloads

Not all features are available on all platforms, check the matrix below for details

Version 0.8.6 - 23/12/2009

Changes in this build

• Mac OS X
• Experimental support for DynaRec on Intel-based Mac OS X platforms.
• All Platforms
• More work refactoring the ARM emulation core to simplify and reduce code.
• Several minor ARM fixes.
• Added support for ARM7500FE and ARM810. ARM7500FE currently offers no floating-point performance advantage. ARM810 is largely experimental and only has limited support from most versions of RISC OS.
• Fixed two crash bugs in IDE code relating to switching between Hard Disk and CD-ROM emulation. Thanks to Francis Devereux for good bug reporting and analysis.
• Simplified and standardised MIPS display in title bar on all platforms. On Linux the MIPS counter is no longer displayed on the console.
• Significant refactoring of code, particularly the DynaRec and sound sections.

Version 0.8.5 - 23/08/2009

Changes in this build

• Compatibility Note
• Because the DynaRec is no longer restricted to StrongARM processor type, you must explicitly choose StrongARM emulation to retain full backwards compatibility. Either edit the rpc.cfg config file or use the GUI to change processor type.
  Note that the DynaRec support for processor types other than StrongARM is experimental.
• All Platforms
• Add the SyncClock module by David Ruck (modified and tested to be 32-bit compatible). This module will regularly synchronise the RISC OS clock with the host machine to compensate for clock drift. It is enabled by default.
• Improvements to co-processor 15 emulation mean that RISC OS 3.60 correctly no longer works with StrongARM emulation (like real hardware).
• Some fixes to MMU emulation regarding virtual to physical address mapping and permission checking.
• Much work refactoring the ARM emulation core to simplify and reduce code.
• Minor improvements to IOMD relating to interrupt handling.
• Significant refactoring of code, including removal of redundant or duplicate code, and addition of numerous comments.

Version 0.8.4 - 05/05/2009

Changes in this build

• All Platforms
• Experimental support for ROOL RISC OS 5.15 IOMD ROM image. However there are many issues, please follow this link for more details.
  http://www.marutan.net/rpcemuspoon/ro5.html
• Fix redraw issues when no VRAM is configured.
• Continuing source code tidying.
• Linux/MacOS X
• Mouse following (mousehack) can now be configured via the rpc.cfg file.

Version 0.8.3 - 15/04/2009

Changes in this build

• Linux
• Faster 64-bit DynaRec code by Tom Walker
• All Platforms
• Several ARM decode and execution bugs fixed, leading to...
• Can boot Pace RISC OS 4 and experimental support for RISC OS 6 Preview 3 (but see Known Issues below)
• Fixed screen corruption when using interpreter and StrongARM with RISC OS 4
• Increasing memory size using GUI no longer crashes RPCEmu
• Small performance increase to DynaRec 32-bit due to refactoring
• Continuing source code tidying
• Known Issues
• RISC OS 6 Preview 3 will only boot with Interpreter if processor type is StrongARM
• RISC OS 6 Preview 3 will not yet boot with 64-bit DynaRec

Version 0.8.2 - 09/02/2009

Changes in this build

• Windows
• Fix shortcut StartIn issues.
• Mac OS X
• Now compiles and runs on Mac OS X (Intel) by Timothy Coltman, no patching required.
• All Platforms
• Support more fullscreen modes.
• Set the year portion of the time (stored in CMOS ram) to always be correct, and generate CMOS checksum. Based on work by Kees Grinwis.
• ARM processor IDs corrected.
• Continuing source code tidying.

Version 0.8.1 - 16/01/2009

Changes in this build

• Windows
• Fixed mapping of \ and # keys.
• Removed console window.
• Correctly return year portion of CMOS time.
• Linux and Windows
• Correctly return the CMOS time, regardless of when it is called.
• Reject ROM images that are not 2MB, 4MB or 6MB in size and inform the user. This should prevent people trying to run compressed Select ROM images directly.
• Continuing source code tidying.

Version 0.8.0 - 30/12/2008

Changes in this build

• HostFS available out of the box.
• Some HostFS issues resolved
• RPCEmu Issue Tracker issues resolved.
  • RPCI001 - Pause/Break Key is now working.
  • RPCI003 - Clock is synchronised with Host on startup.
• Keyboard repeat issue resolved
• Easy installation on Windows

Are you interested in helping contribute to RPCEmu Spoon Edition? If so, why not join the mailing list, and all patches, suggestions and bug reports are welcome.

The current latest state of the source code (general users should always choose to use a released version of the code) is available via the Mercurial revision control system. The RPCEmu Spoon Edition public source code repository will always contain the latest commited changes.