From: Florent Kermarrec <florent@enjoy-digital.fr>
Date: Mon, 27 Apr 2015 19:04:18 +0000 (+0200)
Subject: migen/genlib: avoid use of floating point in reverse_bytes
X-Git-Tag: 24jan2021_ls180~2099^2~72
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=0da9311d70627e4f46319d9631881d50ed44fe5a;p=litex.git

migen/genlib: avoid use of floating point in reverse_bytes
---

diff --git a/migen/genlib/misc.py b/migen/genlib/misc.py
index f13b93c3..b9e73a9a 100644
--- a/migen/genlib/misc.py
+++ b/migen/genlib/misc.py
@@ -1,5 +1,3 @@
-import math
-
 from migen.fhdl.std import *
 from migen.fhdl.structure import _Operator
 
@@ -67,7 +65,7 @@ def chooser(signal, shift, output, n=None, reverse=False):
 
 
 def reverse_bytes(signal):
-    n = math.ceil(flen(signal)/8)
+    n = (flen(signal)+7)//8
     r = []
     for i in reversed(range(n)):
         r.append(signal[i*8:min((i+1)*8, flen(signal))])