From 28c02a7e6a5a3be69a59eed81dfd9ace6612e487 Mon Sep 17 00:00:00 2001
From: David Harris <david_harris@hmc.edu>
Date: Wed, 12 Apr 2023 02:48:40 -0700
Subject: [PATCH] Fixed fdivsqrt to avoid going from done to busy without going
 through idle first

---
 src/fpu/fdivsqrt/fdivsqrtfsm.sv | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/fpu/fdivsqrt/fdivsqrtfsm.sv b/src/fpu/fdivsqrt/fdivsqrtfsm.sv
index da13813f..4cfede60 100644
--- a/src/fpu/fdivsqrt/fdivsqrtfsm.sv
+++ b/src/fpu/fdivsqrt/fdivsqrtfsm.sv
@@ -110,7 +110,7 @@ module fdivsqrtfsm(
   always_ff @(posedge clk) begin
       if (reset | FlushE) begin
           state <= #1 IDLE; 
-      end else if (IFDivStartE) begin 
+      end else if ((state == IDLE) & IFDivStartE) begin 
           step <= cycles; 
           if (SpecialCaseE) state <= #1 DONE;
           else              state <= #1 BUSY;