Paolo Bonzini wrote:
I'd like to implement something similar for MaverickCrunch, using the
integer 32-bit MAC functions, but there is no reciprocal estimate
function on the MaverickCrunch. I guess a lookup table could be
implemented, but how many entries will need to be generated, and how
On Sat, 10 May 2008 11:59:16 +0100, Martin Guy [EMAIL PROTECTED]
said:
On 5/9/08, Paolo Bonzini [EMAIL PROTECTED] wrote:
The idea is to use integer arithmetic to compute the right exponent, and
the lookup table to estimate the mantissa.
The current soft-fp routine in libm seems to use a
On 5/9/08, Paolo Bonzini [EMAIL PROTECTED] wrote:
The idea is to use integer arithmetic to compute the right exponent, and
the lookup table to estimate the mantissa. I used something like this for
square root:
1) shift the entire FP number by 1 to the right (logical right shift)
2) sum
Paolo Bonzini wrote:
I'd like to implement something similar for MaverickCrunch, using the
integer 32-bit MAC functions, but there is no reciprocal estimate
function on the MaverickCrunch. I guess a lookup table could be
implemented, but how many entries will need to be generated, and how
Andrew Haley wrote:
Paolo Bonzini wrote:
I'd like to implement something similar for MaverickCrunch, using the
integer 32-bit MAC functions, but there is no reciprocal estimate
function on the MaverickCrunch. I guess a lookup table could be
implemented, but how many entries will need to be
Hi all,
I was looking for ways to improve the MaverickCrunch division routine on
ARM ep93xx, and noticed that there are few other architectures that
don't have a hardware divide.
IA-64 has a frcpa instruction that returns an estimate of the
reciprocal of a float or double.
Likewise, RS-6000 has
