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`include "positConfig.sv"
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// ============================================================================
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// __
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// \\__/ o\ (C) 2020 Robert Finch, Waterloo
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// \ __ / All rights reserved.
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// \/_// robfinch@finitron.ca
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// ||
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//
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// positCntlz.sv
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//
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// This source file is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published
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// by the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This source file is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see .
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//
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// ============================================================================
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//
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module positCntlz(i, o);
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parameter PSTWID = `PSTWID;
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input [PSTWID-2:0] i;
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output [$clog2(PSTWID-1)-1:0] o;
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generate begin : gClz
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if (PSTWID <= 8)
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cntlz8 u1 (.i({i,{9-PSTWID{1'b1}}}), .o(o));
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else if (PSTWID <= 16)
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cntlz16 u1 (.i({i,{17-PSTWID{1'b1}}}), .o(o));
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else if (PSTWID <= 24)
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cntlz24 u1 (.i({i,{25-PSTWID{1'b1}}}), .o(o));
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else if (PSTWID <= 32)
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cntlz32 u1 (.i({i,{33-PSTWID{1'b1}}}), .o(o));
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else if (PSTWID <= 48)
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cntlz48 u1 (.i({i,{49-PSTWID{1'b1}}}), .o(o));
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else if (PSTWID <= 64)
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cntlz64 u1 (.i({i,{65-PSTWID{1'b1}}}), .o(o));
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else if (PSTWID <= 80)
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cntlz80 u1 (.i({i,{81-PSTWID{1'b1}}}), .o(o));
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else if (PSTWID <= 96)
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cntlz96 u1 (.i({i,{97-PSTWID{1'b1}}}), .o(o));
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else if (PSTWID <= 128)
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cntlz128 u1 (.i({i,{129-PSTWID{1'b1}}}), .o(o));
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end
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endgenerate
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endmodule
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