From: Luke Kenneth Casson Leighton <lkcl@lkcl.net>
Date: Wed, 13 May 2020 21:54:51 +0000 (+0100)
Subject: add TODO placeholders for popcount and parity
X-Git-Tag: div_pipeline~1245
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=71548760724c84aac7339e2676c02d9c480955ee;p=soc.git

add TODO placeholders for popcount and parity
---

diff --git a/src/soc/logical/main_stage.py b/src/soc/logical/main_stage.py
index 18a33299..622216bb 100644
--- a/src/soc/logical/main_stage.py
+++ b/src/soc/logical/main_stage.py
@@ -28,7 +28,7 @@ class LogicalMainStage(PipeModBase):
         comb = m.d.comb
 
         ##########################
-        # main switch-statement for handling logic operations AND, OR and XOR
+        # main switch for logic ops AND, OR and XOR, parity, and popcount
 
         with m.Switch(self.i.ctx.op.insn_type):
             with m.Case(InternalOp.OP_AND):
@@ -37,6 +37,10 @@ class LogicalMainStage(PipeModBase):
                 comb += self.o.o.eq(self.i.a | self.i.b)
             with m.Case(InternalOp.OP_XOR):
                 comb += self.o.o.eq(self.i.a ^ self.i.b)
+            ###### popcount #######
+            # TODO with m.Case(InternalOp.OP_POPCNT):
+            ###### parity #######
+            # TODO with m.Case(InternalOp.OP_PRTY):
 
         ###### sticky overflow and context, both pass-through #####