diff --git a/pipelined/src/generic/binencoder.sv b/pipelined/src/generic/binencoder.sv new file mode 100644 index 000000000..7947ebdcf --- /dev/null +++ b/pipelined/src/generic/binencoder.sv @@ -0,0 +1,36 @@ +/////////////////////////////////////////// +// prioritythermometer.sv +// +// Written: ross1728@gmail.com November 14, 2022 +// +// Purpose: one-hot to binary encoding. +// +// A component of the Wally configurable RISC-V project. +// +// Copyright (C) 2021 Harvey Mudd College & Oklahoma State University +// +// Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation +// files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, +// modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software +// is furnished to do so, subject to the following conditions: +// +// The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES +// OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS +// BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT +// OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. +/////////////////////////////////////////// + +module binencoder #(parameter N = 8) ( + input logic [N-1:0] A, + output logic [$clog2(N)-1:0] Y); + + integer index; + always_comb begin + Y = 0; + for(index = 0; index < N; index++) + if(A[index] == 1'b1) Y = index[$clog2(N)-1:0]; + end + +endmodule