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view modules/bluespec/Pygar/lab4/FIFOUtility.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 FIFO::*;



     2 import FIFOF::*;



     3 import Clocks::*;



     4 import GetPut::*;



     5 



     6 function FIFO#(fifo_type) guardedfifofToFifo( FIFOF#(fifo_type) fifo);



     7 



     8  FIFO#(fifo_type) f = interface FIFO#(fifo_type);



     9                           method first = fifo.first;



    10                           method enq = fifo.enq;



    11                           method deq = fifo.deq;



    12                           method clear = fifo.clear;



    13                       endinterface;                         



    14   return f;



    15 endfunction



    16 



    17 function Get#(fifo_type) syncFifoToGet( SyncFIFOIfc#(fifo_type) fifo);



    18   Get#(fifo_type) f = interface Get#(fifo_type);



    19                         method ActionValue#(fifo_type) get();



    20                           fifo.deq;



    21                           return fifo.first;



    22                         endmethod



    23                       endinterface;



    24   return f; 



    25 endfunction



    26 



    27 function Put#(fifo_type) syncFifoToPut( SyncFIFOIfc#(fifo_type) fifo);



    28   Put#(fifo_type) f = interface Put#(fifo_type);



    29                         method Action put(fifo_type data);



    30                           fifo.enq(data);



    31                         endmethod



    32                       endinterface; 



    33   return f;



    34 endfunction



    35 



    36 function String fifofState(FIFOF#(data) fifo);



    37    String s = "";



    38 



    39    if(!fifo.notEmpty)



    40      begin



    41        s = "Empty";



    42      end



    43    else if (!fifo.notFull)



    44      begin



    45        s = "Full";



    46      end



    47    else



    48      begin



    49        s = "Neither Empty Nor Full";



    50      end



    51 



    52   return s;



    53 endfunction



    54