From 3f8664cf3d923d20910323445f28ea6d7c1d0eae Mon Sep 17 00:00:00 2001
From: Luke Kenneth Casson Leighton <lkcl@lkcl.net>
Date: Wed, 8 May 2019 12:06:55 +0100
Subject: [PATCH] disable fpissue

---
 src/scoreboard/issue_unit.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/scoreboard/issue_unit.py b/src/scoreboard/issue_unit.py
index a677bd6e..d928a402 100644
--- a/src/scoreboard/issue_unit.py
+++ b/src/scoreboard/issue_unit.py
@@ -41,6 +41,9 @@ class IssueUnit(Elaboratable):
         m = Module()
         m.submodules.dest_d = dest_d = Decoder(self.reg_width)
 
+        if self.n_insns == 0:
+            return m
+
         # temporaries
         waw_stall = Signal(reset_less=True)
         fu_stall = Signal(reset_less=True)
-- 
2.30.2