To: djgpp AT delorie DOT com
Subject: Page Faults
Message-ID: <19961129.012507.8439.1.aclemmer@juno.com>
From: aclemmer AT juno DOT com (Aaron M Clemmer)
Date: Thu, 28 Nov 1996 13:27:41 EST

	I'm using DJGPP v2.  A function I'm coding keeps generating page
faults.  So I checked out the FAQ, and tried the suggestion of setting
the `_CRT0_FLAG_NULLOK' bit in `_crt0_startup_flags' in my main()
funtion.   It didn't stop the page faults.

Here is the function that is doing this:
(matrix is just a typedef for an array, vector is a structure, FixedMul
is inlined)

void xform_vector(matrix m, vector svect, vector *result)
{
	result->x =  FixedMul(m[0][0], svect.x) +
	             FixedMul(m[0][1], svect.y) +
	             FixedMul(m[0][2], svect.z) + m[0][3];
... (more of the same)
}

And I'm calling the code like this:
(cube is an array of vectors)

xform_vector(transmatrix, cube[i], &vtemp);


Any ideas of what is going on?

Aaron