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view modules/bluespec/Pygar/lab4/GetPutExt.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 FIFOF::*;



     2 import RWire::*;



     3 import GetPut::*;



     4 



     5 // Convert a FIFOF into a put interface



     6 



     7 function Put#(item_t) fifofToPut( FIFOF#(item_t) f ) provisos ( );



     8   return



     9   (



    10     interface Put



    11       method Action put( item_t item );



    12         f.enq(item);



    13       endmethod



    14     endinterface



    15   );



    16 endfunction



    17 



    18 // Convert a FIFOF into a get interface



    19 



    20 function Get#(item_t) fifofToGet( FIFOF#(item_t) f ) provisos ( );



    21   return



    22   (



    23     interface Get



    24       method ActionValue#(item_t) get();



    25         f.deq();



    26         return f.first();



    27       endmethod



    28     endinterface



    29    );



    30 endfunction



    31 



    32 // Convert a register into an (always ready) put interface



    33 



    34 function Put#(item_t) regToPut( Reg#(item_t) r ) provisos ( );



    35   return



    36   (



    37     interface Put



    38       method Action put( item_t item );



    39         r <= item;



    40       endmethod



    41     endinterface



    42   );



    43 endfunction



    44 



    45 // Convert a register into an (always ready) get interface



    46 



    47 function Get#(item_t) regToGet( Reg#(item_t) r ) provisos ( );



    48   return



    49   (



    50     interface Get



    51       method ActionValue#(item_t) get();



    52         return r;



    53       endmethod



    54     endinterface



    55    );



    56 endfunction



    57 



    58 // Convert a Wire into a put interface



    59 



    60 function Put#(item_t) wireToPut( Wire#(item_t) w ) provisos ( );



    61   return



    62   (



    63     interface Put



    64       method Action put( item_t item );



    65         w._write(item);



    66       endmethod



    67     endinterface



    68   );



    69 endfunction



    70 



    71 // Convert a WIREF into a get interface



    72 



    73 function Get#(item_t) wireToGet( Wire#(item_t) w ) provisos ( );



    74   return



    75   (



    76     interface Get



    77       method ActionValue#(item_t) get();



    78         return w._read();



    79       endmethod



    80     endinterface



    81    );



    82 endfunction



    83 



    84 // Convert a RWire into a put interface



    85 



    86 function Put#(item_t) rwireToPut( RWire#(item_t) w ) provisos ( );



    87   return



    88   (



    89     interface Put



    90       method Action put( item_t item );



    91         w.wset(item);



    92       endmethod



    93     endinterface



    94   );



    95 endfunction



    96 



    97 // Convert a RWire into a get interface



    98 



    99 function Get#(item_t) rwireToGet( RWire#(item_t) w ) provisos ( );



   100   return



   101   (



   102     interface Get



   103       method ActionValue#(item_t) get() if ( isValid(w.wget()) );



   104         return unJust(w.wget());



   105       endmethod



   106     endinterface



   107    );



   108 endfunction