BBCmicro Homepage

Contents

• What is BBCmicro?
• Current Status
• Screenshots
• Documentation
• Download
• Reporting Bugs
• Links

What is BBCmicro?

BBCmicro is the name of my Acorn BBC Microcomputer emulator.

Initially, only the BBC Model B computer will be emulated, but the aim of this project is to provide emulation of the following platforms:

• BBC Model A
• BBC Model B
• BBC B+
• BBC Master 128

... and possibly others.

 The emulator is written in strict ANSI C, and is being developed on Linux using an X Window/Motif graphical user interface. Once the emulator has reached a significant stage I intend to release a version for Microsoft Windows. 

Current Status

Version 0.0.1

• 6502A CPU emulation almost complete. Undocumented op-codes and bugs are also included.
• Paged Memory Banks are complete, including mirroring.
• Addressable Latch is complete.
• 6522 System VIA is currently being worked on.
• A full graphical interactive debugging environment has been written, including disassembly, memory dump, CPU status, single stepping, breakpoints, etc.

As this is a spare-time project (which I don't have a lot of), development is likely to be quite slow - but please do check back here now and then.

Screenshots

Click on a thumbnail to see the full-size image.

Documentation

• Debugger Manual
• Instruction Set

Download

The files below contain the BBC Debugger application compiled on Linux-Mandrake 7.0, and dynamically linked with Motif 2.1.30.
You will need to have the Motif run-time libraries installed to run this application. I recommend the Metro Link distribution of OpenMotif which is available free (please read the license file).

Reporting Bugs

Please report any bugs to bbcmicro@qualsar.co.uk

Links

The BBC lives!