Subject: Bochs x86 Emulator - VMS build procedure
Date: Sat, 29 Dec 2001 14:22:35 +0000
From: Graham Burley <100625.30@compuserve.com>
Organization: CompuServe Interactive Services
Newsgroups: comp.os.vms

Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit

I've been tinkering with BOCHS on VMS ...

  WHAT IS BOCHS?

  Bochs is a highly portable open source IA-32 (x86) PC emulator
  written in C++, that runs on most popular platforms.  It includes
  emulation of the Intel x86 CPU, common I/O devices, and a custom
  BIOS.  Currently, bochs can be compiled to emulate a 386, 486 or
  Pentium CPU.  Bochs is capable of running most Operating Systems
  inside the emulation including Linux, Windows 95, DOS, and
  Windows NT 4.  Bochs was written by Kevin Lawton and is currently
  maintained by the Bochs project at "http://bochs.sourceforge.net".

  Bochs can be compiled and used in a variety of modes, some which are
  still in development.  The 'typical' use of bochs is to provide
  complete x86 PC emulation, including the x86 processor, hardware
  devices, and memory.  This allows you to run OS's and software within
  the emulator on your workstation, much like you have a machine
  inside of a machine.  Bochs will allow you to run Win '95
  applications on a Solaris machine with X11, for example.

  Bochs is distributed under the GNU LGPL.

I've had success building versions 1.2.1 and 1.3 on VMS, these work well
enough to boot, install, and run Linux and DOS. I've put together some
bits to build 1.3 that can be found here:

  http://www.encompasserve.org/~burley/bochs-1_3_vms.zip

The zip file includes a DCL build procedure and some VMS specific code
for limited CD-ROM support, the 1.3 source kit can be found here:

  http://prdownloads.sourceforge.net/bochs/bochs-1.3.tar.gz

To build you need C++ and C compilers, to run you need DECwindows, these
versions work for me:

  OpenVMS Alpha 7.2-2
  Compaq C++ V6.2-016
  Compaq C V6.2-00
  DECwindows V1.2-6

I'd be grateful for any feedback, preferably to
burley(at)encompasserve.org

Graham Burley