Hallo, Allan!

*** Am Dienstag 09. Juli 1996 um 11:51 schrieb Allan Mertner an Thomas Seeling:

 AM> Still, it is much faster than using the TESTCFG interface and can only be
 AM> done faster by implementing the I/O routines in a dedicated device driver.

I would recommend using the free driver xf86sup.sys by Holger Veit, which
implements a method the concepts of which he has described in an EDMI
article. The method used in the driver is still a bit faster than that, and
it's available in source, with ready-to-use interface to C.

There is awful much overhead using testcfg, since it goes through a lot of
APIs checking parameters etc., and calling a segment with IOPL also needs a
lot of cycles to reload registers, check privileges etc.

You can get if from ftp://borneo.gmd.de/~veit/


Tschau...Thomas

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