From: Luke Kenneth Casson Leighton <lkcl@lkcl.net>
Date: Tue, 30 Apr 2019 20:54:18 +0000 (+0100)
Subject: move normalise function, add lowbits param, call it
X-Git-Tag: ls180-24jan2020~1093
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=aa8c754e7d66345a67faa0804e97f38612b283c1;p=ieee754fpu.git

move normalise function, add lowbits param, call it
---

diff --git a/src/add/fsqrt.py b/src/add/fsqrt.py
index 8e116667..02449b0f 100644
--- a/src/add/fsqrt.py
+++ b/src/add/fsqrt.py
@@ -80,6 +80,15 @@ def main(mantissa, exponent):
     return m, r, exponent >> 1
 
 
+#normalization function
+def normalise(s, m, e, lowbits):
+    if (lowbits >= 2):
+        m += 1
+    if get_mantissa(m) == ((1<<24)-1):
+        e += 1
+    return s, m, e
+
+
 def fsqrt_test(x):
 
     xbits = x.bits
@@ -99,6 +108,9 @@ def fsqrt_test(x):
     sm >>= 2
     sm = get_mantissa(sm)
     #sm += 2
+
+    s, sm, se = normalise(s, sm, se, lowbits)
+
     print("our  sqrt", s, se, sm, hex(sm), bin(sm), "lowbits", lowbits,
                                                     "rem", hex(sr))
     if lowbits >= 2:
@@ -141,13 +153,6 @@ if __name__ == '__main__':
     fsqrt_test(x)
 
 
-#normalization function
-def normalise(s, m, e):
-    if (lowbits >= 2):
-        m += 1
-    if get_mantissa(m) == ((1<<24)-1):
-        e += 1
-
 
 
 """