34 lines
823 B
Coq
34 lines
823 B
Coq
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/*****************************************************************************\
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| Copyright (C) 2022 Luke Wren |
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| SPDX-License-Identifier: Apache-2.0 |
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\*****************************************************************************/
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// req: one-hot bitmap
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// idx: index of the sole set bit in req
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`default_nettype none
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module hazard3_onehot_encode #(
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parameter W_REQ = 16,
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parameter W_GNT = $clog2(W_REQ) // do not modify
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) (
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input wire [W_REQ-1:0] req,
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output reg [W_GNT-1:0] gnt
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);
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reg [W_GNT-1:0] gnt;
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always @ (*) begin: encode
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reg [W_GNT:0] i;
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gnt = {W_GNT{1'b0}};
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for (i = 0; i < W_REQ; i = i + 1) begin
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gnt = gnt | ({W_GNT{req[i]}} & i[W_GNT-1:0]);
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end
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end
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endmodule
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`ifndef YOSYS
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`default_nettype wire
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`endif
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