Mercurial > pygar

     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
author	punk
date	Tue, 11 May 2010 09:05:22 -0400
parents	74716e9a81cc
children