CyclicExtender.bsv
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上传日期:2014-09-22
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- // The MIT License
- //
- // Copyright (c) 2006 Nirav Dave (ndave@csail.mit.edu)
- //
- // 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.
- import ComplexF::*;
- import DataTypes::*;
- import Interfaces::*;
- import LibraryFunctions::*;
- import Vector::*;
- import FIFO::*;
- (* synthesize *)
- module mkCyclicExtender(CyclicExtender#(64,81));
- FIFO#(MsgComplexFVec#(64)) fifoQ <- mkLFIFO();
-
- method Action fromIFFT(MsgComplexFVec#(64) x);
- fifoQ.enq(x);
- endmethod
- method ActionValue#(MsgComplexFVec#(81)) toAnalogTX();
- fifoQ.deq();
- Vector#(64, ComplexF#(16)) v = (fifoQ.first().data);
- Vector#(1 , ComplexF#(16)) last = v_truncate(v);
- Vector#(16, ComplexF#(16)) prefix = v_rtruncate(v);
-
- return MsgComplexFVec{
- new_message : True,
- data : Vector::append(Vector::append(last,v),prefix)
- };
-
- endmethod
-
- endmodule