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Fixed formatting

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Harshini Srinath 2023-07-30 17:54:47 -07:00 committed by GitHub
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commit 6b5aa47f23
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1 changed files with 18 additions and 18 deletions
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src/fpu/postproc/fmashiftcalc.sv
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@ -27,18 +27,18 @@
//////////////////////////////////////////////////////////////////////////////////////////////// ////////////////////////////////////////////////////////////////////////////////////////////////
module fmashiftcalc import cvw::*; #(parameter cvw_t P) ( module fmashiftcalc import cvw::*; #(parameter cvw_t P) (
input logic [P.FMTBITS-1:0] Fmt, // precision 1 = double 0 = single input logic [P.FMTBITS-1:0] Fmt, // precision 1 = double 0 = single
input logic [P.NE+1:0] FmaSe, // sum's exponent input logic [P.NE+1:0] FmaSe, // sum's exponent
input logic [3*P.NF+3:0] FmaSm, // the positive sum input logic [3*P.NF+3:0] FmaSm, // the positive sum
input logic [$clog2(3*P.NF+5)-1:0] FmaSCnt, // normalization shift count input logic [$clog2(3*P.NF+5)-1:0] FmaSCnt, // normalization shift count
output logic [P.NE+1:0] NormSumExp, // exponent of the normalized sum not taking into account Subnormal or zero results output logic [P.NE+1:0] NormSumExp, // exponent of the normalized sum not taking into account Subnormal or zero results
output logic FmaSZero, // is the result subnormal - calculated before LZA corection output logic FmaSZero, // is the result subnormal - calculated before LZA corection
output logic FmaPreResultSubnorm, // is the result subnormal - calculated before LZA corection output logic FmaPreResultSubnorm, // is the result subnormal - calculated before LZA corection
output logic [$clog2(3*P.NF+5)-1:0] FmaShiftAmt, // normalization shift count output logic [$clog2(3*P.NF+5)-1:0] FmaShiftAmt, // normalization shift count
output logic [3*P.NF+5:0] FmaShiftIn // is the sum zero output logic [3*P.NF+5:0] FmaShiftIn // is the sum zero
); );
logic [P.NE+1:0] PreNormSumExp; // the exponent of the normalized sum with the P.FLEN bias logic [P.NE+1:0] PreNormSumExp; // the exponent of the normalized sum with the P.FLEN bias
logic [P.NE+1:0] BiasCorr; // correction for bias logic [P.NE+1:0] BiasCorr; // correction for bias
/////////////////////////////////////////////////////////////////////////////// ///////////////////////////////////////////////////////////////////////////////
// Normalization // Normalization
@ -59,9 +59,9 @@ module fmashiftcalc import cvw::*; #(parameter cvw_t P) (
end else if (P.FPSIZES == 3) begin end else if (P.FPSIZES == 3) begin
always_comb begin always_comb begin
case (Fmt) case (Fmt)
P.FMT: BiasCorr = '0; P.FMT: BiasCorr = '0;
P.FMT1: BiasCorr = (P.NE+2)'(P.BIAS1-P.BIAS); P.FMT1: BiasCorr = (P.NE+2)'(P.BIAS1-P.BIAS);
P.FMT2: BiasCorr = (P.NE+2)'(P.BIAS2-P.BIAS); P.FMT2: BiasCorr = (P.NE+2)'(P.BIAS2-P.BIAS);
default: BiasCorr = 'x; default: BiasCorr = 'x;
endcase endcase
end end
@ -101,9 +101,9 @@ module fmashiftcalc import cvw::*; #(parameter cvw_t P) (
assign Sum2GEFL = $signed(PreNormSumExp) >= $signed((P.NE+2)'(-P.NF2-2+P.BIAS-P.BIAS2)) | ~|PreNormSumExp; assign Sum2GEFL = $signed(PreNormSumExp) >= $signed((P.NE+2)'(-P.NF2-2+P.BIAS-P.BIAS2)) | ~|PreNormSumExp;
always_comb begin always_comb begin
case (Fmt) case (Fmt)
P.FMT: FmaPreResultSubnorm = Sum0LEZ & Sum0GEFL & ~FmaSZero; P.FMT: FmaPreResultSubnorm = Sum0LEZ & Sum0GEFL & ~FmaSZero;
P.FMT1: FmaPreResultSubnorm = Sum1LEZ & Sum1GEFL & ~FmaSZero; P.FMT1: FmaPreResultSubnorm = Sum1LEZ & Sum1GEFL & ~FmaSZero;
P.FMT2: FmaPreResultSubnorm = Sum2LEZ & Sum2GEFL & ~FmaSZero; P.FMT2: FmaPreResultSubnorm = Sum2LEZ & Sum2GEFL & ~FmaSZero;
default: FmaPreResultSubnorm = 1'bx; default: FmaPreResultSubnorm = 1'bx;
endcase endcase
end end
@ -131,5 +131,5 @@ module fmashiftcalc import cvw::*; #(parameter cvw_t P) (
// - shift once if killing a product and the result is subnormal // - shift once if killing a product and the result is subnormal
assign FmaShiftIn = {2'b0, FmaSm}; assign FmaShiftIn = {2'b0, FmaSm};
if (P.FPSIZES == 1) assign FmaShiftAmt = FmaPreResultSubnorm ? FmaSe[$clog2(3*P.NF+5)-1:0]+($clog2(3*P.NF+5))'(P.NF+2): FmaSCnt+1; if (P.FPSIZES == 1) assign FmaShiftAmt = FmaPreResultSubnorm ? FmaSe[$clog2(3*P.NF+5)-1:0]+($clog2(3*P.NF+5))'(P.NF+2): FmaSCnt+1;
else assign FmaShiftAmt = FmaPreResultSubnorm ? FmaSe[$clog2(3*P.NF+5)-1:0]+($clog2(3*P.NF+5))'(P.NF+2)+BiasCorr[$clog2(3*P.NF+5)-1:0]: FmaSCnt+1; else assign FmaShiftAmt = FmaPreResultSubnorm ? FmaSe[$clog2(3*P.NF+5)-1:0]+($clog2(3*P.NF+5))'(P.NF+2)+BiasCorr[$clog2(3*P.NF+5)-1:0]: FmaSCnt+1;
endmodule endmodule