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Fixed spacing

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Harshini Srinath 2023-07-30 17:21:22 -07:00 committed by GitHub
parent 36108e4b52
commit 49823ccd45
1 changed files with 11 additions and 11 deletions
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src/fpu/fma/fmalza.sv
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@ -28,11 +28,11 @@
////////////////////////////////////////////////////////////////////////////////////////////////
module fmalza #(WIDTH, NF) (
input logic [WIDTH-1:0] A, // addend
input logic [2*NF+1:0] Pm, // product
input logic Cin, // carry in
input logic sub, // subtraction
output logic [$clog2(WIDTH+1)-1:0] SCnt // normalization shift count for the positive result
input logic [WIDTH-1:0] A, // addend
input logic [2*NF+1:0] Pm, // product
input logic Cin, // carry in
input logic sub, // subtraction
output logic [$clog2(WIDTH+1)-1:0] SCnt // normalization shift count for the positive result
);
logic [WIDTH:0] F; // most significant bit of F indicates leading digit
@ -40,19 +40,19 @@ module fmalza #(WIDTH, NF) (
logic [WIDTH-1:0] P, G, K; // propagate, generate, kill for each column
logic [WIDTH-1:0] Pp1, Gm1, Km1; // propagate shifted right by 1, generate/kill shifted left 1
assign B = {{(NF+1){1'b0}}, Pm, 1'b0}; // Zero extend product
assign B = {{(NF+1){1'b0}}, Pm, 1'b0}; // Zero extend product
assign P = A^B;
assign G = A&B;
assign K= ~A&~B;
assign K = ~A&~B;
assign Pp1 = {sub, P[WIDTH-1:1]}; // shift P right by 1 (for P_i+1) , use subtract flag in most significant bit
assign Gm1 = {G[WIDTH-2:0], Cin}; // shift G left by 1 (for G_i-1) and bring in Cin
assign Km1 = {K[WIDTH-2:0], ~Cin}; // shift K left by 1 (for K_i-1) and bring in Cin
assign Pp1 = {sub, P[WIDTH-1:1]}; // shift P right by 1 (for P_i+1) , use subtract flag in most significant bit
assign Gm1 = {G[WIDTH-2:0], Cin}; // shift G left by 1 (for G_i-1) and bring in Cin
assign Km1 = {K[WIDTH-2:0], ~Cin}; // shift K left by 1 (for K_i-1) and bring in Cin
// Apply function to determine Leading pattern
// - note: Schmookler01 uses the numbering system where 0 is the most significant bit
assign F[WIDTH] = ~sub&P[WIDTH-1];
assign F[WIDTH] = ~sub&P[WIDTH-1];
assign F[WIDTH-1:0] = (Pp1&(G&~Km1 | K&~Gm1)) | (~Pp1&(K&~Km1 | G&~Gm1));
lzc #(WIDTH+1) lzc (.num(F), .ZeroCnt(SCnt));