From eaa0d4498039de1d91c1edb1df078e2d6958d9ad Mon Sep 17 00:00:00 2001
From: David Harris <david_harris@hmc.edu>
Date: Mon, 18 Apr 2022 19:02:08 +0000
Subject: [PATCH] Fixed WFI decoding in IFU

---
 pipelined/src/ifu/ifu.sv | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pipelined/src/ifu/ifu.sv b/pipelined/src/ifu/ifu.sv
index d5e2e88b..5b42b411 100644
--- a/pipelined/src/ifu/ifu.sv
+++ b/pipelined/src/ifu/ifu.sv
@@ -140,7 +140,7 @@ module ifu (
   // WFI
   /////////////////////////////////////////////////////////////////////////////////////////////
 
-  assign wfiD = (InstrD[6:0] == 7'b111011 && InstrD[31:20] == 12'b000100000101); // WFI in decode stage
+  assign wfiD = (InstrD[6:0] == 7'b1110011 && InstrD[31:20] == 12'b000100000101); // WFI in decode stage
   assign InstrNextF = wfiD ? InstrD : PostSpillInstrRawF; // on WFI, keep replaying WFI
 
   ////////////////////////////////////////////////////////////////////////////////////////////////