Demo version of Accelerated-X for Intel UNIX Systems

This is identical to the full released version of the Server, but it has some restrictions, so that you'll have to buy the full release of the Server to make it useful.

All boards that the full release supports, are supported in the demo in exactly the same way as the full release. The primary restriction is that you can only run a few programs (clients) at a time. This limitation makes the Demo version particularly useful for pre-purchase installation testing, configuration testing, and benchmark testing. It is not suitable for evaluation, in which you attempt to run your full working environment. We have a 30-day money back offer for that, but we recommend trying the demo first and then product purchase, if you are at uncertain about the benefits of the Accelerated-X Server.

See the License below, for details.

What you need.

Files:

License.

You may freely copy the Demonstration version of the product.

You must include this README in any copy that you make.

If you copy the Demonstration version, you must copy the whole Demonstration version for one Operating System, unmodified.

The demonstration version is identifiable by:

• The word DEMO printed in the version identification string when the product starts.
• A message printed by the Server when it starts, warning that the DEMO version is limited to a specific number of clients.
• A small number of client connections is permitted.
• Only Server 0 can be started.

If you find anything else, there is no license to use it for any purpose at all! The first reporter of an erroneously included file on our Anon-FTP Server gets at least a free copy of the full release for their own use!

The demonstration version can not be sold either individually or as part of a collection, without a written distribution agreement from X Inside Incorporated.

You may not modify or reverse engineer the binary product, disassemble, decompile or use other methods to investigate the internal operations and code of the Server.

Text files may be examined and modified, but modified files may not be included with the Demonstration version and further copied.

The demonstration version is intended for evaluation purposes only.

No warranty is provided, express or implied.

The demonstration version must not be copied or used where these rules are not legal or can not be enforced.

Hardware Considerations.

VLB Motherboards

Some VLB motherboards, particularly early designs of VLB motherboards, have problems with using memory addresses over 64MB. Symptoms are that graphics chipsets using a linear memory mapping will fail and may cause the machine to halt, or the OS to fail. We do not know of any test for the failing motherboards, other than trying it.

There are two common VLB motherboardfailure modes:

1. Memory is wrapped, typically modulo 64MB. A reference to memory above this value, ends up as a reference into memory address space, possibly where another program is in operation. The Server may work for a brief time, while the memory is being corrupted.
2. The machine will hang when the address is accessed.

Chipsets and workrounds

If you have a VLB system and the Server fails, then try putting one of the two lines that follows, in the [SCREEN] section of the server configuration file (/etc/Xaccel.ini or $HOME/.Xaccel.ini):

• PhysBase = 0x04000000; // mapping @ 64MB
• PhysBase = 0x000A0000; // disable linear mapping

If the first one succeeds, then you have memory mapped as high as it probably will work. If you want to disable linear memoy mapping completely, use the second line.

All PCI based boards use linear mapping if the graphics chip supports it.

The following graphics chipsets will read back config registers to find out the default mapping the board vendor uses:

ALLIANCE ARK ATI (only mach32 and mach64, and only with VLB) CHIPS (64xxx and 65xxx) OAK (OTI107) S3 (732, 764, 864, 868, 964, 968) WEITEK (P9100)

The following chips will not use default linear mapping, however you can enable it with the PhysBase:

CIRRUS OAK (OTI087) TSENG

The following chips don't use linear mapping at all:

AVANCE COMPAQ I8514 IIT OAK (OTI067, OTI077) S3 (801, 805, 805i, 911, 924, 928) TRIDENT (currently ... new chips will use linear mapping) VGA WD WEITEK (W5086, W5186, W5286) XGA

The following chips enforce linear mapping and cannot be reconfigured:

JAWS MATROX NUMBER9 WEITEK (P9000)

Other Stuff

The full and final release of Accelerated-X 1.2 is available from:

If you have downloaded and run the demo version, you are welcome to upgrade to the full release version for $59.95. The Internet Demo Upgrade consists of the diskettes for the full release and the printed Release Notes, but omits the printed manual.

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