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microwatt/tests/fpu
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Paul Mackerras 394f993e75 FPU: Implement frsqrte[s] and a test for frsqrte 
This implements frsqrte by table lookup.  We first normalize the input
if necessary and adjust so that the exponent is even, giving us a
mantissa value in the range [1.0, 4.0), which is then used to look up
an entry in a 768-entry table.  The 768 entries are appended to the
table for reciprocal estimates, giving a table of 1024 entries in
total.  frsqrtes is implemented identically to frsqrte.

The estimate supplied is accurate to 1 part in 1024 or better.

Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
 		4 years ago
..
Makefile tests: Add a test for FP loads and stores 4 years ago
fpu.c FPU: Implement frsqrte[s] and a test for frsqrte 4 years ago
head.S tests/fpu: Add tests for basic FPSCR function and interrupt generation 4 years ago
powerpc.lds tests: Add a test for FP loads and stores 4 years ago