From: Luke Kenneth Casson Leighton <lkcl@lkcl.net>
Date: Tue, 19 Feb 2019 07:41:35 +0000 (+0000)
Subject: remove hard-coded width
X-Git-Tag: ls180-24jan2020~1872
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=d4a692ce3c03f415d625ad9ffc05218db442e9b6;p=ieee754fpu.git

remove hard-coded width
---

diff --git a/src/add/nmigen_add_experiment.py b/src/add/nmigen_add_experiment.py
index 38cd8d78..26c779ff 100644
--- a/src/add/nmigen_add_experiment.py
+++ b/src/add/nmigen_add_experiment.py
@@ -29,7 +29,7 @@ class FPADD(FPBase):
         b = FPNum(self.width)
         z = FPNum(self.width, False)
 
-        w = {32: 28, 64:57}[self.width]
+        w = z.m_width + 4
         tot = Signal(w) # sticky/round/guard, {mantissa} result, 1 overflow
 
         of = Overflow()