mirror of https://github.com/bochs-emu/Bochs
- add Features table at end of Introduction section
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Bryce Denney
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<!--
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================================================================
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doc/docbook/user/user.dbk
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$Id: user.dbk,v 1.16 2001-11-14 01:45:47 bdenney Exp $
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$Id: user.dbk,v 1.17 2001-11-14 02:40:55 bdenney Exp $
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This is the top level file for the Bochs Users Manual.
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================================================================
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@ -27,7 +27,7 @@ This is the top level file for the Bochs Users Manual.
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<!-- *************************************************************** -->
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<chapter><title>Introduction to Bochs</title>
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<section><title>What is Bochs?</title>
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<section id="whatisbochs"><title>What is Bochs?</title>
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<para>
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Bochs is a program that simulates a complete Intel x86 computer. It
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can be configured to act like a 286, 386, 486, Pentium, or Pentium Pro.
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@ -68,7 +68,7 @@ Virtualization takes advantage of simulating x86 instructions on an
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x86 machine, allowing large portions of the simulation to take place
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at native hardware speed. Whenever the simulated machine talks to the
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hardware or enters certain privileged modes (such as in kernel code),
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the simulator typically takes command and simulates that code in
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the simulator typically takes control and simulates that code in
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software at much slower speed, just like Bochs does.
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</para>
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</footnote>, but they are neither portable to non-x86 platforms nor open
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@ -253,7 +253,172 @@ top of every source code file in the Bochs distribution:
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</section> <!-- end of Introduction:License section -->
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</chapter> <!-- End of Introductino to Bochs -->
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<section><title>Features</title>
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<para>
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The following table shows the features of Bochs and which platforms they
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currently work with.
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</para>
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<table><title>Bochs Features</title>
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<tgroup cols=3 align=left colsep=1 rowsep=1>
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<thead>
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<row>
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<entry>Feature</entry>
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<entry>Supported?</entry>
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<entry>Description</entry>
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</row>
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</thead>
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<tbody>
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<row>
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<entry>configure script</entry>
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<entry>Yes</entry>
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<entry>Bochs uses GNU autoconf to configure Makefiles and headers.
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Autoconf helps Bochs to compile on a wide variety of platforms.
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</entry>
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</row>
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<row>
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<entry>386,486,Pentium Emulation</entry>
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<entry>Yes</entry>
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<entry>Bochs can be configured to emulate on of several families of Intel hardware. Some Pentium features are supported, such as the Time Stamp Counter.</entry>
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</row>
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<row>
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<entry>Pentium Pro Emulation</entry>
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<entry>Incomplete</entry>
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<entry>A few Pentium Pro features are supported, such as an on-chip APIC for SMP simulation.
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</entry>
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</row>
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<row>
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<entry>Cmd Line Debugger</entry>
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<entry>Yes</entry>
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<entry>Powerful command line debugger (optional) that lets you stop
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execution and examine registers and memory, set breakpoints, etc.
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</entry>
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</row>
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<row>
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<entry>Floating Point</entry>
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<entry>Yes</entry>
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<entry>Uses software floating point routines written by Bill Metzenthen
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</entry>
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</row>
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<row>
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<entry>VGA</entry>
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<entry>Yes</entry>
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<entry>VGA color graphics emulation in a window
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</entry>
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</row>
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<row>
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<entry>Floppy disk</entry>
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<entry>Yes</entry>
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<entry>Supports floppy disk images on all platforms: 1.44M 3.5", 1.2M 5.25", and 720K 3.5". On Unix and Windows NT/2000, Bochs can access the physical floppy drive.
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</entry>
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</row>
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<row>
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<entry>Hard disk</entry>
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<entry>Yes</entry>
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<entry>Emulates one or two AT/IDE hard drives via image files. No physical
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hard disk access is supported, primarily for safety reasons. Only two
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IDE devices, total, are supported. So you can have two hard disks,
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or one hard disk and one CDROM.
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</entry>
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</row>
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<row>
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<entry>Keyboard</entry>
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<entry>Yes</entry>
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<entry>Emulates a PS/2 keyboard with North American key mappings. Keyboards with other key mappings are reported to have problems with special keys and punctuation.
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</entry>
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</row>
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<row>
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<entry>Mouse</entry>
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<entry>Yes</entry>
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<entry>Emulates a PS/2 mouse with 3 buttons.
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</entry>
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</row>
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<row>
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<entry>Network card</entry>
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<entry>Yes</entry>
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<entry>Emulates an NE2000 compatible network card. On Windows NT/2000,
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Linux, FreeBSD, and NetBSD, Bochs will forward packets to and from the
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operating system so that the guest OS can talk on the physical network.
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Unfortuately, with the current implementation, the guest OS can talk
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to any machine on the network BUT NOT the host machine.
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</entry>
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</row>
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<row>
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<entry>CDROM</entry>
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<entry>Yes</entry>
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<entry>Emulates an IDE CDROM. The CDROM can read from an ISO disk image
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on any platform. On Windows (95/98/NT/2000), Linux, SunOS, FreeBSD,
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NetBSD, Amiga/MorphOS, and BeOS<footnote><para>Coming soon, hopefully in
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v1.3</para></footnote>, Bochs can read from the physical cdrom.
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When the CDROM is enabled, only one hard disk can be used.
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</entry>
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</row>
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<row>
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<entry>Parallel Port</entry>
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<entry>Yes</entry>
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<entry>Parallel port emulation was added by Volker Ruppert for Bochs 1.3.
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Data that is sent to the parallel port by the guest OS can be saved into a
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file or (on Unix only) sent directly into the parallel port device.
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</entry>
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</row>
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<row>
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<entry>Serial Port</entry>
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<entry>Not quite</entry>
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<entry>The serial port (single 8259 UART emulation) is not really usable
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yet. The interface to the emulated CPU is mostly working, but it needs
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some work before it can talk to a raw serial port or to a pseudo terminal.
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</entry>
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</row>
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<row>
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<entry>16/32 bit addressing</entry>
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<entry>Yes</entry>
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<entry>16 or 32 bit operand sizes, stack size, and addressing</entry>
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</row>
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<row>
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<entry>v8086/paging</entry>
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<entry>Yes</entry>
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<entry>Virtual-8086 mode and paging</entry>
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</row>
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<row>
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<entry>PIC</entry>
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<entry>Yes</entry>
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<entry>Master and slave programmable interrupt controller.
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</entry>
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</row>
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<row>
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<entry>CMOS functions</entry>
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<entry>Yes</entry>
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<entry>CMOS functions</entry>
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</row>
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<row>
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<entry>Dynamic Translation</entry>
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<entry>No</entry>
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<entry>Because Bochs is designed to be portable, it does not attempt
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to do any dynamic code translation or virtualization. See
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<link linkend="whatisbochs">What is Bochs?</link> for details.
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</entry>
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</row>
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<row>
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<entry>Simulate a Multiprocessor</entry>
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<entry>Yes</entry>
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<entry>Bochs can be configured to simulate up to 15 processors. This
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feature is still experimental, but it can boot Linux 2.2 kernels with SMP
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support. Please note that this does NOT mean that bochs can run
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faster on a physical SMP machine.
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</entry>
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</row>
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<row>
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<entry>Take advantage of your SMP box</entry>
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<entry>No</entry>
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<entry>At present, Bochs does not use threads or parallel processing, so it
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will not run any faster on multiprocessor hardware.
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</entry>
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</row>
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</tbody>
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</tgroup>
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</table>
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</section>
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</chapter> <!-- End of Introduction to Bochs -->
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<!-- *************************************************************** -->
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<chapter><title>FAQ</title>
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