64 bit memory access - again ...

Dan Malek dan at embeddededge.com
Thu Dec 6 04:16:41 EST 2001

Shie Erlich wrote:

> the FPU solution does work, however (and thanks for the pointers) - but if
> my
> function saves the fpu registers and restores them, do i really need to
> force
> the kernel to context switch the fpu ?

You have to be careful that moving the bits in/out of the FP register
doesn't have other side effects in FP status or condition codes.  Always
saving/restoring the context will guarantee the application doesn't see
these side effects, but you can experiment if you wish.

Good Luck.

	-- Dan

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