Let’s say that a driver calls _controlfp to set the FPU control word.
In the WDK, _controlfp is provided by ieee87.obj in libcntpr.lib.
However, that module has references to __pxcptinfoptrs and
__setdefaultprecision. I can find __setdefaultprecision in libcpsx.lib,
but as near as I can tell, __pxcptinfoptrs does not exist in any kernel
library in the WDK, resulting in an unsatisfied external reference.
Modulo warnings about using floating point in a kernel driver, I need to
know what to do about this. A driver cannot rely on any floating point
state, so it seems that using _controlfp is almost mandatory.
–
Tim Roberts, xxxxx@probo.com
Providenza & Boekelheide, Inc.
I have no idea of the answer to this question, but “modulo” is a nice
way to put it, Tim.
mm
>> xxxxx@probo.com 2007-04-02 14:47 >>>
Let’s say that a driver calls _controlfp to set the FPU control word.
In the WDK, _controlfp is provided by ieee87.obj in libcntpr.lib.
However, that module has references to __pxcptinfoptrs and
__setdefaultprecision. I can find __setdefaultprecision in
libcpsx.lib,
but as near as I can tell, __pxcptinfoptrs does not exist in any
kernel
library in the WDK, resulting in an unsatisfied external reference.
Modulo warnings about using floating point in a kernel driver, I need
to
know what to do about this. A driver cannot rely on any floating
point
state, so it seems that using _controlfp is almost mandatory.
–
Tim Roberts, xxxxx@probo.com
Providenza & Boekelheide, Inc.
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