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Fixed spacing

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Harshini Srinath 2023-07-30 16:57:57 -07:00 committed by GitHub
parent b4cfdf3393
commit d69d0ececc
1 changed files with 10 additions and 12 deletions
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src/fpu/fma/fma.sv
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@ -27,17 +27,17 @@
//////////////////////////////////////////////////////////////////////////////////////////////// ////////////////////////////////////////////////////////////////////////////////////////////////
module fma import cvw::*; #(parameter cvw_t P) ( module fma import cvw::*; #(parameter cvw_t P) (
input logic Xs, Ys, Zs, // input's signs input logic Xs, Ys, Zs, // input's signs
input logic [P.NE-1:0] Xe, Ye, Ze, // input's biased exponents in B(NE.0) format input logic [P.NE-1:0] Xe, Ye, Ze, // input's biased exponents in B(NE.0) format
input logic [P.NF:0] Xm, Ym, Zm, // input's significands in U(0.NF) format input logic [P.NF:0] Xm, Ym, Zm, // input's significands in U(0.NF) format
input logic XZero, YZero, ZZero, // is the input zero input logic XZero, YZero, ZZero, // is the input zero
input logic [2:0] OpCtrl, // operation control input logic [2:0] OpCtrl, // operation control
output logic ASticky, // sticky bit that is calculated during alignment output logic ASticky, // sticky bit that is calculated during alignment
output logic [3*P.NF+3:0] Sm, // the positive sum's significand output logic [3*P.NF+3:0] Sm, // the positive sum's significand
output logic InvA, // Was A inverted for effective subtraction (P-A or -P+A) output logic InvA, // Was A inverted for effective subtraction (P-A or -P+A)
output logic As, // the aligned addend's sign (modified Z sign for other opperations) output logic As, // the aligned addend's sign (modified Z sign for other opperations)
output logic Ps, // the product's sign output logic Ps, // the product's sign
output logic Ss, // the sum's sign output logic Ss, // the sum's sign
output logic [P.NE+1:0] Se, // the sum's exponent output logic [P.NE+1:0] Se, // the sum's exponent
output logic [$clog2(3*P.NF+5)-1:0] SCnt // normalization shift count output logic [$clog2(3*P.NF+5)-1:0] SCnt // normalization shift count
); );
@ -56,7 +56,7 @@ module fma import cvw::*; #(parameter cvw_t P) (
logic [3*P.NF+3:0] Am; // addend aligned's mantissa for addition in U(NF+4.2NF) logic [3*P.NF+3:0] Am; // addend aligned's mantissa for addition in U(NF+4.2NF)
logic [3*P.NF+3:0] AmInv; // aligned addend's mantissa possibly inverted logic [3*P.NF+3:0] AmInv; // aligned addend's mantissa possibly inverted
logic [2*P.NF+1:0] PmKilled; // the product's mantissa possibly killed U(2.2Nf) logic [2*P.NF+1:0] PmKilled; // the product's mantissa possibly killed U(2.2Nf)
logic KillProd; // set the product to zero before addition if the product is too small to matter logic KillProd; // set the product to zero before addition if the product is too small to matter
logic [P.NE+1:0] Pe; // the product's exponent B(NE+2.0) format; adds 2 bits to allow for size of number and negative sign logic [P.NE+1:0] Pe; // the product's exponent B(NE+2.0) format; adds 2 bits to allow for size of number and negative sign
/////////////////////////////////////////////////////////////////////////////// ///////////////////////////////////////////////////////////////////////////////
@ -67,7 +67,6 @@ module fma import cvw::*; #(parameter cvw_t P) (
// - Multiply the mantissas // - Multiply the mantissas
/////////////////////////////////////////////////////////////////////////////// ///////////////////////////////////////////////////////////////////////////////
// calculate the product's exponent // calculate the product's exponent
fmaexpadd #(P) expadd(.Xe, .Ye, .XZero, .YZero, .Pe); fmaexpadd #(P) expadd(.Xe, .Ye, .XZero, .YZero, .Pe);
@ -80,6 +79,7 @@ module fma import cvw::*; #(parameter cvw_t P) (
/////////////////////////////////////////////////////////////////////////////// ///////////////////////////////////////////////////////////////////////////////
// Alignment shifter // Alignment shifter
/////////////////////////////////////////////////////////////////////////////// ///////////////////////////////////////////////////////////////////////////////
fmaalign #(P) align(.Ze, .Zm, .XZero, .YZero, .ZZero, .Xe, .Ye, .Am, .ASticky, .KillProd); fmaalign #(P) align(.Ze, .Zm, .XZero, .YZero, .ZZero, .Xe, .Ye, .Am, .ASticky, .KillProd);
// /////////////////////////////////////////////////////////////////////////////// // ///////////////////////////////////////////////////////////////////////////////
@ -91,5 +91,3 @@ module fma import cvw::*; #(parameter cvw_t P) (
fmalza #(3*P.NF+4, P.NF) lza(.A(AmInv), .Pm(PmKilled), .Cin(InvA & (~ASticky | KillProd)), .sub(InvA), .SCnt); fmalza #(3*P.NF+4, P.NF) lza(.A(AmInv), .Pm(PmKilled), .Cin(InvA & (~ASticky | KillProd)), .sub(InvA), .SCnt);
endmodule endmodule