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What is OS-9?OS-9
is a real-time, multiuser, multitasking operating system developed by
Microware Systems Corporation. It provides
synchronization and mutual exclusion primitives in the form of signals,
events, and semaphores. It also allows communication between processes
in the form of named and unnamed pipes, as well as shared memory in the
form of data modules.
OS-9 is modular, allowing new devices to be added to the system simply by writing new device drivers, or if a similar device already exists, by simply creating a new device descriptor. All I/O devices can be treated as files, which unifies the I/O system. In addition, the kernel and all user programs are ROMable. Thus, OS-9 can run on any supported hardware platform from simple diskless embedded control systems to large multiuser minicomputers. Originally developed for the 6809 microprocessor, OS-9 was a joint effort between Microware and Motorola. The original version of OS-9 (OS-9 Level I) was capable of addressing 64 kilobytes of memory. OS-9 Level II took advantage of dynamic address translation hardware, and allowed a mapped address space of one megabyte on most systems, and up to two megabytes on others, most notably the Tandy Color Computer 3. In the
1980's, Microware ported OS-9 to the 68000 family of microprocessors,
creating OS-9/68000, which is used in a variety of industrial and commercial
arenas, including Philips' CD-i and most recently, set-top boxes for interactive
television. Microware is constantly added processor support to OS-9000.
Currently supported processors include 68xxx, PPC, X86, Intel SARM / IXP,
MIPS, SPARC, Hitachi SH.
What is OS-9000?OS-9000
is a portable version of OS-9, written primarily in C. It is available
for the Intel (386 and higher), PowerPC processors, ARM, StrongArm, SH,
MIPS, and Sparc. Code is portable across OS-9000 platforms and between
OS-9 at the source code level. Theoretically, OS-9000 can be ported to
any modern computer architecture. Currenlty Microware refers to all ports
of OS-9000 as OS-9.
Back To Top What is DAVID?DAVID
is a configuration of OS-9/OS-9000 targeted towards the Interactive TV
Set Top Box (STB) market. DAVID stands for Digital Audio Video Interactive
Decoder. The unique characteristics of DAVID are that it will always include
the following I/O subsystems:
DAVID
is being shipped for 68xxx, Power PC and 80x86 processor families. Click
here for more information on DAVID.
What machines run OS-9?OS-9
runs on a multitude of machines, from set-top boxes to industrial control
machines.
OS-9/6809
runs on a variety of platforms, perhaps the most (in)famous being the
Tandy Color Computer. Other systems include the SWTPC SCB-69, the Gimix
6809, Smoke Signal Broadcasting's Chieftain 6809, FHL's TC-9, the Febe,
and a host of others, most of which are SS-50 bus machines. Note that
OS-9/6809 is no longer supported by Microware, but many user groups, BBSes,
and a handful of FTP sites offer help and maintain software collections
for OS-9/6809. What software is available for OS-9?OS-9
software can be found either commercially or in the public domain/shareware/freeware.
The most notable place to obtain free OS-9 software and code examples
is through Real-Time Services Inc.'s free OS-9 ftp site at ftp://OS-9archive.rtsi.com/OS-9. There
is a considerable amount of "legacy" applications such as word processors,
spread-sheets and utilities which are mostly not used anymore since OS-9's
focus has changed almost exclusively to that of an embedded, real-time
operating system.
Back To Top Where can I get OS-9?Generally,
a hardware vendor of a particular computer system will ship a version
of OS-9 for their platform. In addition, several software vendors sell
customized and enhanced OS-9 packages, and Microware sells single license copies for
certain systems.
Back To Top What development tools are available for OS-9?Microware
sells HAWK, a host/target development system consisting of a GUI based
debugger, profiler and Ultra C++ compiler. HAWK is available for Windows
9X/NT and supports user- and system-level debugging. Development is typically
done with the OS-9 target connected to the host development machine via
ethernet or SLIP. Hawk for Windows 9X/NT based platforms also comes with
the Codewright programmer's editor.
CodeWarrior,
from MetroWerks, is another GUI based development environment for OS-9
development. Unlike Hawk, CodeWarrior is only available for Windows 9X/NT
and does not support system-level debugging. Does OS-9 have TCP/IP support?Yes.
Microware sells LAN Communications Pak,
which is a complete TCP/IP package based on the SPF file manager. LAN
Comm Pak includes telnet and ftp client and server applications. Its performance
is considerably better than that of Microware's older TCP/IP support package,
ISP. LAN Comm Pak also provides a C BSD 4.2 compatible socket library,
as well as SLIP and PPP client support.
Additionally,
there is a port of the Phil Karn ka9q internet software package, which
supports a single-user interface to TCP/IP. It includes a telnet client,
an FTP client and server, and SMTP. Source and executables may be found
on ftp://OS-9archive.rtsi.com/OS-9.
Does OS-9 properly handle Y2K (Year 2000)?Yes,
as of OS-9/68000 version 3.0.3. Previous versions of OS-9/68000 do not
handle the Y2K problem correclty. Specifically, some utilities cannot
interpret Y2K properly, and some clock modules may also be at fault. Contact
Microware for details on upgrading to OS-9/68000
3.0.3.
OS-9000
handles Y2K properly; therefore, upgrading is not necessary. What communications software is available?Several
public domain programs are available from OS-9archive including terminal
emulators and file transfer utilities. Sterm, a popular non-commercial
package, can run on any terminal based OS-9 system and supports XModem
as well as Compuserve B+ protocol. In addition, many software vendors
sell various equivalent packages. C-Kermit is available in source and
executable form for OS-9.
If you
are looking for X/Y/ZModem and kermit protocols, an excellent implementation
by Tim Kientzle can be found on ftp://OS-9archive.rtsi.com/. Is GCC available for OS-9?GCC
and g++ are available for OS-9/68000, both in OS-9 executable form and
cross-compiler form. Version 1.37 was ported to OS-9 by Atsushi Seyama
and was then supported and updated to the version 1.39, 1.40, and 1.42.2
by Stephan Paschedag. Source and binaries are available on ftp://OS-9archive.rtsi.com/OS-9 . The 1.40
versions and up support 68040 optimizations. Version 2.x of GCC is a completely
new port to OS-9 which allows better optimization. The first version that
was released was version 2.4.5.
The current
edition includes a new I/O library which gives full compatibility with
C++ programs (I/O streams). It also supports the different calling interfaces
of Microware's compilers (K&R C V3.2 and Ultra C). Bear in mind that
the newer editions (2.x) will require at least 4 MB of memory free in
order to run. What graphics interfaces are available?There
are several to choose from. Microware has MAUI, the graphical environment
which is currently being used in DAVID set-top boxes.
Microware also sells a port of X11R5 (client and server plus optional Motif). Eltec Electronik GmbH sells ports of X11R4, X11R5 and X11R6. Kei Thomsen has also done a port of X11R5 and X11R6. His port requires Microware sockets, GCC 2.x, OS-9lib.l (unix compatibility routines), and a bourne shell for running imake. It requires a minimum of 4 MB physical memory, 8MB if you plan to run any applications. Several
other companies have various graphics packages for OS-9. MGR, the window
manager from Bellcore, is available for the WCP306 computer, and Reccoware Systems also has a port. Gespac produces G-Windows, a portable windowing
package which has device windows and a very Motif-looking interface. For
the MM/1, BlackHawk Enterprises sells K-Windows,
a window manager similar to the Multi-Vue OS-9 window package for the
Tandy Color Computer 3. Where can I obtain public domain software for OS-9?Public
domain software for OS-9 can be found on the Internet, as well as on several
bulletin boards dedicated to OS-9. The primary Internet resource for public
domain software is OS-9archive.rtsi.com.
This ftp site contains a large amount of OS-9/68000 and OS-9/6X09 software
contributed by many individuals. Another ftp site in located in
Europe is lucy.ifi.unibas.ch/ftp/osk.
For Color Computer OS-9 users, there is the Princeton Listserver, which acts as a mailing server that will mail requested software. To begin using the Listserver, send electronic mail to listserv@pucc.princeton.edu, with the word HELP in your message. OS-9archive.rtsi.com
contains mostly OS-9/68000 software, including the complete TOP package, many EFFO disks, GCC and G++,
(and many other GNU products such as flex and bison), ka9q, k5jb, TeX,
LaTeX, and quite a bit of 6809 software. What is the TOP package?TOP
is an acronym for "The OS-9 Project". It is a collection of OS-9/68000
software developed primarily in Germany and available on ftp://OS-9archive.rtsi.com/OS-9.
Much of it seems to be an attempt to make OS-9 a little more UNIX-like.
Many standard UNIX utilities are provided, as well as a complete UUCP
mail implementation, and a more secure password file and login program.
Many traditional UNIX games are also provided. The total package consumes
approximately 16 MB of disk space, though much of this is source code.
Back To Top What books are available that cover OS-9 topics?Here
is a listing of currently available books dealing with OS-9 topics.
Are there alternative shells for OS-9?Yes,
there are. Microware's MShell, an enhanced shell.
In addition, there are several public domain shells available. The most
notable of which is the Bourne shell, sh, available in the TOP package (OS-9/68000) in its original version.
A newer version with may enhancements and bug fixes is available through
EFFO. sh supports aliasing, command-line editing, history, environment
variable replacement, shell scripting, the `command` operator (which uses
the output of the command as arguments to the called program), and a startup
file. For users feeling at home in a VAX/VMS surrounding, the zsh shell
is commercially available from ELSOFT.
A PD version of ksh is available on ftp://OS-9archive.rtsi.com/OS-9. Bash, the GNU shell, has also recently been ported. Bash is also available on OS-9archive. For OS-9/6809,
there is Shell+ and if you have a Color Computer 3, there is always GShell
a graphical shell. Can one read/write MS-DOS format disks under OS-9?Yes,
there are several public domain and commercially avaliable utilities to
accomplish this task, for both OS-9/6809 and OSK. One of the more interesting
is the MSFM file manager which appears in OS-9 Insights, a book by Peter Dibble, available
through Microware. MSFM is an actual file manager,
which allows you to mount an MS-DOS floppy as part of the OS-9 file system.
PCF, available from Microware, is an updated file manager which also reads
and writes MS-DOS format disks.
Back To Top Can one read/write OS-9 format disks on a PC?Yes,
there is a product called OS-9MAX which is capable of managing OS-9 media
such as diskettes, hard disks, pcmcia memory chip cards, PC cards, CD-ROMS
and other OS-9 RBF style devices. OS-9MAX lets you read, write amd format
OS-9 disks on a PC.
Contact DTR Datentechnik Reischke for more information. DTR also
has software which will allow backup from OS-9 to CD-ROM. It requires
Microware's ISP and a PC CD-ROM recorder. Where can I get online information about OS-9?There
are several newsgroups and mailing lists on the internet which discuss
OS-9 and its derivatives. On Usenet NetNews, the following groups cover
OS-9, the first of which more so than the others:
CompuServe and Delphi
both have OS-9 forums with a files section for downloads of some of the
latest OS-9/68000 and OS-9/6809 shareware. On-line conferences are regularly
scheduled on Delphi's OS-9 forum on a variety of topics. GEnie also has
OS-9 support with OSK files found in a section of the Atari ST RoundTable
and CoCo OS-9 and MM/1
files found in the Tandy RoundTable.
Also,
the Princeton Listserver carries a discussion forum for the Tandy Color
Computer and its derivatives, which often includes discussion of OS-9/6809.
To get information about the listserver, send e-mail to listserv@pucc.princeton.edu, with
the word HELP as the body of the message. What about UUCP and news?Several
ports of UUCP software are available for both OS-9/6809 and OS-9/68K.
A port of C news and RN are available on OS-9archive.rtsi.com. TOP has ported Notes, which maintains Notesfiles.
There is a program which will transfer between Notesfiles and netnews.
The TOP package in its entirety may be found on OS-9archive.
Rick Adams' UUCP port for OS-9/6809 is also available, and this has been updated to UUCPbb by Bob Billson, Boisy G. Pitre and others. UUCPbb is also available for OS-9/68000 and may be found on wuarchive and OS-9archive, as well as on Delphi and CompuServe. A nice companion mail reader for this package called Palm, which has Elm-like features, is also available. UUCPbb
features:
Elm
has also been ported to OSK, and is available on OS-9archive. The Elm package
is a port of elm 2.4; it fits in the rmail/lmail/uucp environment that
can be found in the TOP package.
Elm
features:
Where do I get OS-9/68000 for the Commodore Amiga?Digby Tarvin from Australia, has a port
of OS-9/68000 for the Amiga, which costs approximately $600 US.
Back To Top What is a Real Time system?A real-time
system is any system whose correctness depends not only on the correctness
of the applied algorithms, but also in the timing of the execution of
those algorithms. Refer to the newsgroup comp.realtime
for more information.
Back To Top Does OS-9 support multiple threads within a program?
The OS-9 FAQ WWW Page
is currently maintained by Real-Time Services, Inc. Please
send any changes or corrections to info@rtsi.com
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