mirror of https://github.com/openbsd/www.git
143 lines
4.4 KiB
HTML
143 lines
4.4 KiB
HTML
<!doctype html>
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<html lang=en id=platform>
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<meta charset=utf-8>
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<title>OpenBSD/arc</title>
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<meta name="description" content="the OpenBSD/arc page">
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<meta name="viewport" content="width=device-width, initial-scale=1">
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<link rel="stylesheet" type="text/css" href="openbsd.css">
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<link rel="canonical" href="https://www.openbsd.org/arc.html">
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<h2 id=OpenBSD>
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<a href="index.html">
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<i>Open</i><b>BSD</b></a>
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arc
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</h2>
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<hr>
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<table><tr><td>
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<p>
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OpenBSD/arc used to run on the machines compatible with the <i>Advanced RISC
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Computing</i> specification, known as ARC machines, based on MIPS processors
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and initially designed to run Microsoft Windows NT.
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Such machines included the long dead Acer PICA, as well other machines
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manufactured by other companies such as MIPS, Deskstation, NEC, and Olivetti.
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<p>
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The ARC specification is extinct, and no new ARC BIOS machines for MIPS are
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likely to ever be manufactured.
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Microsoft has stopped supporting MIPS platforms after NT 4.0.
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OpenBSD/arc used to provide a good alternative to NT!
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<p>
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<strong>The OpenBSD/arc port was discontinued after the 2.3 release.</strong>
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</table>
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<hr>
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<h3 id="history"><strong>History:</strong></h3>
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<p>
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The early history of this port is not very clear. Apparently the first work was
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done by CMU as part of their Mach project. The initial hardware was the DEC
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R2000/R3000-based DECstations. This code was later used by both the Sprite and
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BSD groups. The 4.4BSD code, known as the <i><a href="pmax.html">pmax</a></i>
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port, was made freely available in mid 1993. It was merged into the
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NetBSD tree by a variety of people, but took several years to really become
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stable and mature, mainly because of compiler toolchain problems.
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<p>
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Per Fogelström became familiar with the code after porting it to a
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home-built IDT R3081 based board. Subsequently he added R4400 support
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when porting it to the MIPS R4400 Acer PICA board. Willowglen
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Singapore purchased a second PICA board for Theo de Raadt so that he
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could improve the port for use as a development system for an internal
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project. Since then Theo, Per and others have completed the port.
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<p>
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As a result, the code has been modified to make it more versatile, and
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eventually support a larger range of ARC machines. Unfortunately the death
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of this platform, as well as the lack of general availability of this hardware,
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eventually turned people away from working on this port. Eventually, it was
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decided to stop supporting it and remove the code from the tree.
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<hr>
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<h3 id="hardware"><strong>Supported hardware:</strong></h3>
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<h4>Supported models</h4>
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<ul>
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<li>Acer Pica (150MHz R4400PC, ISA, with on-board ethernet, SCSI, video,
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and serial)
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<li>Deskstation Tyne (133MHz R4600, ISA and VLB)
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<li>Deskstation rPC44 (100MHz R4400PC, EISA bus)
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<li>Algorithmics R4000/R5000/R10000 evaluation boards
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<li>Algorithmics P-4032 and P-5064 boards
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<li>NEC RiscStation
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</ul>
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<h4>Supported peripherals</h4>
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<ul>
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<li><strong>Video</strong>
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<ul>
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<li>Built-in S3 VGA graphics adapter (PICA) (with XFree86 support)
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<li>Standard VGA graphics adapter (rPC44, Tyne)
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</ul>
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<li><strong>Keyboard</strong>
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<ul>
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<li>Standard PC compatible keyboard
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</ul>
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<li><strong>Pointing device</strong>
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<ul>
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<li>PS2 mouse (PICA)
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<li>Serial mouse (rPC44, Tyne)
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</ul>
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<li><strong>Serial ports</strong>
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<ul>
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<li>On-board serial ports (PICA) (can not be used as a serial console)
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<li>ISA serial ports controllers
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</ul>
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<li><strong>Parallel ports</strong>
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<ul>
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<li>On-board parallel port (PICA)
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<li>ISA parallel ports controllers
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</ul>
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<li><strong>Floppy drive</strong>
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<ul>
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<li>ISA Floppy controller (PICA)
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</ul>
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<li><strong>Ethernet</strong>
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<ul>
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<li>on-board SONIC ethernet controller (PICA)
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<li>3Com Etherlink boards
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<li>NE2000 compatible ISA boards
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</ul>
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<li><strong>SCSI Controllers</strong>
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<ul>
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<li>on-board NCR53C96 SCSI controller (PICA)
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<li>VLB Buslogic BT-440C/445C
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<li>ISA Buslogic BT-545 SCSI controller (rPC44)
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</ul>
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<li><strong>IDE Controllers</strong>
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<ul>
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<li>ISA Western-Digital compatible IDE controllers<br>
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<small>(bootable only on Deskstation systems)</small>
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</ul>
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<li><strong>Miscellaneous devices</strong>
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<ul>
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<li>Joystick on ISA bus
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<li>PCI bus on Algorithmics P-4032 and P-5064 boards
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</ul>
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</ul>
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<hr>
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<h3 id="install">
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<strong>Getting and installing OpenBSD/arc:</strong>
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</h3>
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The last supported OpenBSD/arc release was
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<a href="23.html">OpenBSD 2.3</a>.
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It is not available on ftp sites anymore, but it was available on CD.
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