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[/] [qaz_libs/] [trunk/] [BFM/] [src/] [tb/] [legacy/] [bfm_pkg.sv] - Rev 51
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//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2015 Authors and OPENCORES.ORG ////
//// ////
//// This source file may be used and distributed without ////
//// restriction provided that this copyright statement is not ////
//// removed from the file and that any derivative work contains ////
//// the original copyright notice and the associated disclaimer. ////
//// ////
//// This source file is free software; you can redistribute it ////
//// and/or modify it under the terms of the GNU Lesser General ////
//// Public License as published by the Free Software Foundation; ////
//// either version 2.1 of the License, or (at your option) any ////
//// later version. ////
//// ////
//// This source is distributed in the hope that it will be ////
//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
//// PURPOSE. See the GNU Lesser General Public License for more ////
//// details. ////
//// ////
//// You should have received a copy of the GNU Lesser General ////
//// Public License along with this source; if not, download it ////
//// from http://www.opencores.org/lgpl.shtml ////
//// ////
//////////////////////////////////////////////////////////////////////
package bfm_pkg;
// --------------------------------------------------------------------
//
typedef enum
{
NONE,
REGULAR
// BURSTY
} traffic_type_e;
// --------------------------------------------------------------------
//
class delay_class;
rand int unsigned delay = 0;
// --------------------------------------------------------------------
//
virtual function void set_delay(traffic_type_e kind = REGULAR);
case(kind)
NONE: delay = 0;
REGULAR: assert(this.randomize() with{delay dist {0 := 60, [1:3] := 30, [4:7] := 10};});
default: delay = 0;
endcase
endfunction: set_delay
// --------------------------------------------------------------------
//
virtual function int next(traffic_type_e kind = REGULAR);
set_delay(kind);
return(delay);
endfunction: next
// --------------------------------------------------------------------
//
endclass: delay_class
// --------------------------------------------------------------------
//
virtual class transaction_class #(parameter type TR_T);
delay_class delay_h;
// --------------------------------------------------------------------
//
function void random;
assert(this.randomize());
endfunction: random
//--------------------------------------------------------------------
//
function new;
delay_h = new();
endfunction: new
// --------------------------------------------------------------------
//
pure virtual function void copy(TR_T from);
// --------------------------------------------------------------------
//
function automatic TR_T clone;
TR_T child;
clone = new();
$cast(child, this);
clone.copy(child);
return(clone);
endfunction: clone
// --------------------------------------------------------------------
//
endclass: transaction_class
//--------------------------------------------------------------------
//
endpackage: bfm_pkg
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