add to FPU update

diff --git a/updates/014_2019feb12_floating_point.mdwn b/updates/014_2019feb12_floating_point.mdwn
index 21c7b6c3900b2393877ef51867de29f2291eb1ca..36f7d71eaa36a404a086b62a830c12fda8791ced 100644 (file)
--- a/updates/014_2019feb12_floating_point.mdwn
+++ b/updates/014_2019feb12_floating_point.mdwn
@@ -86,5 +86,12 @@ not the other.
 There is a lot to be done, here, mostly not in actual "work", but simply
 in *understanding* how to go about doing IEEE754 arithmetic.  Rounding,
 overflow, tininess, packing, normalisation, let alone optimisation: it's
-a really big job.  We'll just have to see how it goes.
+a really big job: we'll just have to see how it goes, and in the
+meantime, read up on resources such as this
+[excellent guide](https://steve.hollasch.net/cgindex/coding/ieeefloat.html)
+by Steve Hollasch.
+
+This is basically a background update, explaining the rationale and
+direction that's been chosen.  Future updates on the FPU will be much
+more technical.