From: Luke Kenneth Casson Leighton <lkcl@lkcl.net>
Date: Thu, 4 Jun 2020 00:24:20 +0000 (+0100)
Subject: collate fu-enable signals
X-Git-Tag: div_pipeline~617
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=dc78ee41a776646bf89aaed741b5f78c82bbd571;p=soc.git

collate fu-enable signals
---

diff --git a/src/soc/simple/core.py b/src/soc/simple/core.py
index 54e60864..d25285bf 100644
--- a/src/soc/simple/core.py
+++ b/src/soc/simple/core.py
@@ -39,19 +39,20 @@ class NonProductionCore(Elaboratable):
         regs = self.regs
         fus = self.fus.fus
 
+        # enable-signals for each FU, get one bit for each FU (by name)
+        fu_enable = Signal(len(fus), reset_less=True)
+        fu_bitdict = {}
+        for i, funame in enumerate(fus.keys()):
+            fu_bitdict[funame] = fu_enable[i]
+
         # connect up instructions
         for funame, fu in fus.items():
             fnunit = fu.fnunit.value
             enable = Signal(name="en_%s" % funame, reset_less=True)
-            comb += enable.eq(self.ivalid_i & (dec2.e.fn_unit & fnunit != 0))
+            comb += enable.eq(self.ivalid_i & (dec2.e.fn_unit & fnunit).bool())
             with m.If(enable):
                 comb += fu.oper_i.eq_from_execute1(dec2.e)
-
-        # enable-signals for each FU, get one bit for each FU (by name)
-        fu_enable = Signal(len(fus), reset_less=True)
-        fu_bitdict = {}
-        for i, funame in enumerate(fus.keys()):
-            fu_bitdict[funame] = fu_enable[i]
+            comb += fu_bitdict[funame].eq(enable)
 
         # dictionary of lists of regfile read ports
         byregfiles_rd = {}