// The MIT License
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// The MIT License
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// Copyright (c) 2006-2007 Massachusetts Institute of Technology
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// Copyright (c) 2006-2007 Massachusetts Institute of Technology
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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// furnished to do so, subject to the following conditions:
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// The above copyright notice and this permission notice shall be included in
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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// all copies or substantial portions of the Software.
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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// THE SOFTWARE.
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//**********************************************************************
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//**********************************************************************
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// Memory for Entropy Decoder
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// Memory for Entropy Decoder
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//----------------------------------------------------------------------
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//----------------------------------------------------------------------
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//
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//
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//
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//
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//
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//
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package mkMemED;
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package mkMemED;
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import H264Types::*;
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import H264Types::*;
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import IMemED::*;
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import IMemED::*;
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import GetPut::*;
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import GetPut::*;
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import ClientServer::*;
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import ClientServer::*;
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import FIFO::*;
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import FIFO::*;
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import BRAM::*;
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import BRAM::*;
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//----------------------------------------------------------------------
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//----------------------------------------------------------------------
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// Main module
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// Main module
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//----------------------------------------------------------------------
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//----------------------------------------------------------------------
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module mkMemED(IMemED#(index_size,data_size))
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module mkMemED(IMemED#(index_size,data_size))
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provisos (Bits#(MemReq#(index_size,data_size),mReqLen),
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provisos (Bits#(MemReq#(index_size,data_size),mReqLen),
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Bits#(MemResp#(data_size),mRespLen));
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Bits#(MemResp#(data_size),mRespLen));
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//-----------------------------------------------------------
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//-----------------------------------------------------------
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// State
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// State
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BRAM#(Bit#(index_size),Bit#(data_size)) bramfile <- mkBRAM_Full();
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BRAM#(Bit#(index_size),Bit#(data_size)) bramfile <- mkBRAM_Full();
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FIFO#(MemReq#(index_size,data_size)) reqQ <- mkFIFO();
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FIFO#(MemReq#(index_size,data_size)) reqQ <- mkFIFO();
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FIFO#(MemResp#(data_size)) respQ <- mkFIFO();
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FIFO#(MemResp#(data_size)) respQ <- mkFIFO();
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rule storing ( reqQ.first() matches tagged StoreReq { addr:.addrt,data:.datat} );
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rule storing ( reqQ.first() matches tagged StoreReq { addr:.addrt,data:.datat} );
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bramfile.write(addrt,datat);
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bramfile.write(addrt,datat);
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reqQ.deq();
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reqQ.deq();
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endrule
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endrule
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rule reading ( reqQ.first() matches tagged LoadReq .addrt );
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rule reading ( reqQ.first() matches tagged LoadReq .addrt );
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bramfile.read_req(addrt);
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bramfile.read_req(addrt);
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reqQ.deq();
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reqQ.deq();
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endrule
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endrule
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rule readresp ( True );
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rule readresp ( True );
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let temp <- bramfile.read_resp;
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let temp <- bramfile.read_resp;
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respQ.enq( LoadResp temp );
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respQ.enq( LoadResp temp );
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endrule
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endrule
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interface Server mem_server;
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interface Server mem_server;
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interface Put request = fifoToPut(reqQ);
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interface Put request = fifoToPut(reqQ);
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interface Get response = fifoToGet(respQ);
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interface Get response = fifoToGet(respQ);
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endinterface
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endinterface
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endmodule
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endmodule
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endpackage
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endpackage
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