m3s087ct.v

这是16位定点dsp源代码。已仿真和综合过了

//*******************************************************************       //
//IMPORTANT NOTICE                                                          //
//================                                                          //
//Copyright Mentor Graphics Corporation 1996 - 1998.  All rights reserved.  //
//This file and associated deliverables are the trade secrets,              //
//confidential information and copyrighted works of Mentor Graphics         //
//Corporation and its licensors and are subject to your license agreement   //
//with Mentor Graphics Corporation.                                         //
//                                                                          //
//These deliverables may be used for the purpose of making silicon for one  //
//IC design only.  No further use of these deliverables for the purpose of  //
//making silicon from an IC design is permitted without the payment of an   //
//additional license fee.  See your license agreement with Mentor Graphics  //
//for further details.  If you have further questions please contact        //
//Mentor Graphics Customer Support.                                         //
//                                                                          //
//This Mentor Graphics core (m320c50eng v1999.010) was extracted on         //
//workstation hostid 800059c1 Inventra                                      //
// Memory Strobe Multiplexers
// Copyright Mentor Graphics Corporation and Licensors 1998.
// V1.001

// Revision history
// V1.001 - 19 November 1996
//          Seperate RD, WR signals for each block.

// m3s0087ct.v
// M320C50 Memory strobe multiplexers for DMA controller.
// The read/write strobe multiplexer is in a separate module to ensure
// the synthesiser uses a NOR gate so that the strobes do not glitch
// as DMA mode is entered or exited.

`include "m320c50.inc"

module m3s087ct (WrI, WrE, RdI, RdE, NWr, NRd);
//*******************************************************************       //
//IMPORTANT NOTICE                                                          //
//================                                                          //
//Copyright Mentor Graphics Corporation 1996 - 1998.  All rights reserved.  //
//This file and associated deliverables are the trade secrets,              //
//confidential information and copyrighted works of Mentor Graphics         //
//Corporation and its licensors and are subject to your license agreement   //
//with Mentor Graphics Corporation.                                         //
//                                                                          //
//These deliverables may be used for the purpose of making silicon for one  //
//IC design only.  No further use of these deliverables for the purpose of  //
//making silicon from an IC design is permitted without the payment of an   //
//additional license fee.  See your license agreement with Mentor Graphics  //
//for further details.  If you have further questions please contact        //
//Mentor Graphics Customer Support.                                         //
//                                                                          //
//This Mentor Graphics core (m320c50eng v1999.010) was extracted on         //
//workstation hostid 800059c1 Inventra                                      //
    input  [`C_NOSB-1:0] WrI, WrE, RdI, RdE;
    output [`C_NOSB-1:0] NWr, NRd;

    reg [`C_NOSB-1:0]  NWr, NRd;

// NOR gate for write strobes
always @(WrI or WrE)
    NWr = ~(WrI | WrE);

// NOR gate for read strobes
always @(RdI or RdE)
    NRd = ~(RdI | RdE);

endmodule