From: Luke Kenneth Casson Leighton <lkcl@lkcl.net>
Date: Sat, 16 Feb 2019 09:41:49 +0000 (+0000)
Subject: add comment on special operations
X-Git-Tag: ls180-24jan2020~1955
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=ae85fc94757455bb8cf44a8ecd410dfba35ec64e;p=ieee754fpu.git

add comment on special operations
---

diff --git a/src/add/nmigen_add_experiment.py b/src/add/nmigen_add_experiment.py
index f6e10fe5..38af9437 100644
--- a/src/add/nmigen_add_experiment.py
+++ b/src/add/nmigen_add_experiment.py
@@ -244,6 +244,8 @@ class FPADD:
 
             # ******
             # special cases: NaNs, infs, zeros, denormalised
+            # NOTE: some of these are unique to add.  see "Special Operations"
+            # https://steve.hollasch.net/cgindex/coding/ieeefloat.html
 
             with m.State("special_cases"):