Mercurial > pygar

     1 // The MIT License

     2 

     3 // Copyright (c) 2009 Massachusetts Institute of Technology

     4 

     5 // Permission is hereby granted, free of charge, to any person obtaining a copy

     6 // of this software and associated documentation files (the "Software"), to deal

     7 // in the Software without restriction, including without limitation the rights

     8 // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

     9 // copies of the Software, and to permit persons to whom the Software is

    10 // furnished to do so, subject to the following conditions:

    11 

    12 // The above copyright notice and this permission notice shall be included in

    13 // all copies or substantial portions of the Software.

    14 

    15 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

    16 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

    17 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE

    18 // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

    19 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

    20 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN

    21 // THE SOFTWARE.

    22 

    23 import Connectable::*;

    24 import GetPut::*;

    25 import ClientServer::*;

    26 import FIFO::*;

    27 import SpecialFIFOs::*;

    28 

    29 //AWB includes

    30 `include "asim/provides/low_level_platform_interface.bsh"

    31 `include "asim/provides/soft_connections.bsh"

    32 `include "asim/provides/common_services.bsh"

    33 

    34 

    35 // Local includes

    36 `include "asim/provides/core.bsh"

    37 `include "asim/provides/processor_library.bsh"

    38 `include "asim/provides/processor_library.bsh"

    39 `include "asim/provides/fpga_components.bsh"

    40 `include "asim/rrr/remote_client_stub_PROCESSORSYSTEMRRR.bsh"

    41 

    42 module [CONNECTED_MODULE] mkConnectedApplication ();

    43 

    44   Core core <- mkCore;

    45   Reg#(int) cycle <- mkReg(0);

    46 

    47   //External memory 

    48   // I'm not comfortable assuming that the memory subsystem is in order  

    49   // So I'll insert a completion buffer here.  

    50   ClientStub_PROCESSORSYSTEMRRR client_stub <- mkClientStub_PROCESSORSYSTEMRRR();   

    51   // Make this big enough so that several outstanding requests may be supported

    52   FIFO#(Bit#(MainMemTagSz)) tags <- mkSizedFIFO(8);

    53 

    54   // this is for the tracing

    55   rule printCycles;

    56     cycle <= cycle+1;

    57     $fdisplay(stderr, " => Cycle = %d", cycle);

    58   endrule

    59 

    60 

    61   rule sendMemReq;

    62     let coreReq <- core.mmem_client.request.get;

    63     case (coreReq) matches 

    64       tagged LoadReq .load: begin

    65                               //Allocate ROB space

    66                               client_stub.makeRequest_MemoryRequestLoad(load.addr);

    67                               tags.enq(load.tag);

    68                             end

    69       tagged StoreReq .store: begin

    70                                 client_stub.makeRequest_MemoryRequestStore(store.addr,store.data);

    71                               end

    72     endcase

    73   endrule

    74   

    75   rule receiveMemResp;

    76     let memResp <- client_stub.getResponse_MemoryRequestLoad();

    77     tags.deq;

    78     core.mmem_client.response.put(tagged LoadResp {data:memResp,

    79                                                    tag: tags.first});

    80   endrule

    81 

    82 endmodule
author	punk
date	Tue, 04 May 2010 18:54:54 -0400
parents	74716e9a81cc
children