From: Aleksandar Kostovic <alexandar.kostovic@gmail.com>
Date: Wed, 8 May 2019 15:11:48 +0000 (+0200)
Subject: Fix exponent offsets
X-Git-Tag: ls180-24jan2020~1003
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=b43dab3caf38ae1412efa96938b3f36a3cfaeae8;p=ieee754fpu.git

Fix exponent offsets
---

diff --git a/src/ieee754/fpsqrt/fsqrt.py b/src/ieee754/fpsqrt/fsqrt.py
index 0c8aa1e5..3f63ce78 100644
--- a/src/ieee754/fpsqrt/fsqrt.py
+++ b/src/ieee754/fpsqrt/fsqrt.py
@@ -93,14 +93,14 @@ def normalise(s, m, e, lowbits):
     if (e == 128 & m !=0):
         # these are in IEEE754 format, this function returns s,e,m not z
         s = 1           # sign (so, s=1)
-        e = 127         # exponent (minus 128, so e = 127
+        e = 128         # exponent (minus 127, so e = 128
         m = 1<<22     # high bit of mantissa, so m = 1<<22 i think
 
     #if the num is Inf, then adjust (to normalised +/-INF)
     if (e == 128):
         # these are in IEEE754 format, this function returns s,e,m not z
         s = 1       # s is already s, so do nothing to s.
-        e = 127  # have to subtract 128, so e = 127 (again)
+        e = 128  # have to subtract 127, so e = 128 (again)
         m = 0     # mantissa... so m=0
 
     return s, m, e