From: Cesar Strauss <cestrauss@gmail.com>
Date: Mon, 6 Jul 2020 10:56:51 +0000 (-0300)
Subject: Remove wait state to demonstrate zero-delay reception.
X-Git-Tag: div_pipeline~162^2~39
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=be3087bb8fee44362440f44f48535a31ab06511c;p=soc.git

Remove wait state to demonstrate zero-delay reception.
---

diff --git a/src/soc/experiment/alu_hier.py b/src/soc/experiment/alu_hier.py
index d18f195a..fd5add20 100644
--- a/src/soc/experiment/alu_hier.py
+++ b/src/soc/experiment/alu_hier.py
@@ -544,9 +544,10 @@ def test_alu_parallel():
         # (-5) + 3 = -2
         result = yield from receive()
         assert (result == 65533)  # unsigned equivalent to -2
-        yield
         # 5 - 3 = 2
         # note that this is a zero-delay operation
+        # this, and the previous result, will be received back-to-back
+        # (check the output waveform to see this)
         result = yield from receive()
         assert (result == 2)
         yield