From c8ea5afe25436a1f26c49782fa0352c6396c72c5 Mon Sep 17 00:00:00 2001
From: David Harris <david_harris@hmc.edu>
Date: Thu, 23 Mar 2023 17:25:59 -0700
Subject: [PATCH] Removed unnecessary XZero from fdivsqrt
---
src/fpu/fdivsqrt/fdivsqrtexpcalc.sv | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/src/fpu/fdivsqrt/fdivsqrtexpcalc.sv b/src/fpu/fdivsqrt/fdivsqrtexpcalc.sv
index b5b2ba335..482fed842 100644
--- a/src/fpu/fdivsqrt/fdivsqrtexpcalc.sv
+++ b/src/fpu/fdivsqrt/fdivsqrtexpcalc.sv
@@ -69,6 +69,6 @@ module fdivsqrtexpcalc(
assign SExp = {SXExp[`NE+1], SXExp[`NE+1:1]} + {2'b0, Bias};
// correct exponent for subnormal input's normalization shifts
- assign DExp = ({2'b0, Xe} - {{(`NE+1-`DIVBLEN){1'b0}}, ell} - {2'b0, Ye} + {{(`NE+1-`DIVBLEN){1'b0}}, m} + {3'b0, Bias}) & {`NE+2{~XZero}}; // *** why Xzero? Is this a hack for postprocessor?
+ assign DExp = ({2'b0, Xe} - {{(`NE+1-`DIVBLEN){1'b0}}, ell} - {2'b0, Ye} + {{(`NE+1-`DIVBLEN){1'b0}}, m} + {3'b0, Bias});
assign Qe = Sqrt ? SExp : DExp;
endmodule