floating point in the kernel

2003-02-12 Thread Parveen Patel
Hi, Can I use floating point operations inside the FreeBSD kernel version 4.7-stable? It used to be a policy not to use it for obvious performance probelms. Are there any known work arounds? Like some standard efficient techniques to convert floating point operations to fixed point operations

Re: floating point in the kernel

2003-02-12 Thread Parveen Patel
Thanks for your response. My only concern is a square root operation I have to do. Is there some standard routine that will do it for long long or else I can pull out some code from gnu/i386/fpemul to do my computations. -Parveen. On Wed, 12 Feb 2003, Dan Nelson wrote: In the last episode

Re: floating point in the kernel

2003-02-12 Thread Kris Kennaway
On Wed, Feb 12, 2003 at 07:50:23PM -0700, Parveen Patel wrote: Thanks for your response. My only concern is a square root operation I have to do. Is there some standard routine that will do it for long long or else I can pull out some code from gnu/i386/fpemul to do my computations. You

Re: floating point in the kernel

2003-02-12 Thread Dan Nelson
In the last episode (Feb 12), Parveen Patel said: Can I use floating point operations inside the FreeBSD kernel version 4.7-stable? It used to be a policy not to use it for obvious performance probelms. You're not supposed to. I think this was the last time it was brought up:

Re: floating point in the kernel

2003-02-12 Thread Dan Nelson
In the last episode (Feb 12), Parveen Patel said: Thanks for your response. My only concern is a square root operation I have to do. Is there some standard routine that will do it for long long or else I can pull out some code from gnu/i386/fpemul to do my computations. Try