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Removed unnecessary XZero from fdivsqrt

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This commit is contained in:
David Harris 2023-03-23 17:25:59 -07:00
parent 83e13cef46
commit dc156cc09c
1 changed files with 1 additions and 1 deletions
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src/fpu/fdivsqrt/fdivsqrtexpcalc.sv
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@ -69,6 +69,6 @@ module fdivsqrtexpcalc(
assign SExp = {SXExp[`NE+1], SXExp[`NE+1:1]} + {2'b0, Bias}; assign SExp = {SXExp[`NE+1], SXExp[`NE+1:1]} + {2'b0, Bias};
// correct exponent for subnormal input's normalization shifts // 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; assign Qe = Sqrt ? SExp : DExp;
endmodule endmodule