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view modules/bluespec/Pygar/lab4/CBUFF.bsv @ 8:74716e9a81cc pygar svn.9

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[svn r9] Pygar now has the proper directory structure to play nicely with awb. Also, the apm file for audio-core willcompile successfully.
author rlm
date Fri, 23 Apr 2010 02:32:05 -0400
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     1 import Connectable::*;



     2 import GetPut::*;



     3 import ClientServer::*;



     4 



     5 `include "asim/provides/librl_bsv_storage.bsh"



     6 



     7 typedef SCOREBOARD_FIFO_ENTRY_ID#(t) CBUFFToken#(type t);



     8 



     9 interface CBUFF #(numeric type n, type element_type);



    10    interface Get#(CBUFFToken#(n)) reserve;



    11    interface Put#(Tuple2 #(CBUFFToken#(n), element_type)) complete;



    12    interface Get#(element_type) drain;



    13 endinterface



    14 



    15 module mkCBUFF(CBUFF#(n, element_type))



    16    provisos(Bits#(element_type,a__));



    17    



    18    SCOREBOARD_FIFOF#(n,element_type) cbuff <- mkScoreboardFIFOF();



    19 



    20    let res = interface Get;



    21 		method ActionValue#(CBUFFToken#(n)) get();



    22 		   let tok <- cbuff.enq();



    23 		   return tok;



    24 		endmethod



    25 	     endinterface;



    26    



    27    let comp = interface Put;



    28 		 method Action put(Tuple2#(CBUFFToken#(n),element_type) t);



    29 		    cbuff.setValue(tpl_1(t), tpl_2(t));



    30 		 endmethod



    31 	      endinterface;



    32    



    33    let dr = interface Get;



    34 	       method ActionValue#(element_type) get();



    35 		  cbuff.deq();



    36 		  return cbuff.first();



    37 	       endmethod



    38 	    endinterface;



    39 



    40    interface Get reserve = res;



    41    interface Put complete = comp;



    42    interface Get drain = dr;



    43 



    44 endmodule