// ========== Copyright Header Begin ==========================================
// OpenSPARC T2 Processor File: vega_shadow_class.vr
// Copyright (C) 1995-2007 Sun Microsystems, Inc. All Rights Reserved
// 4150 Network Circle, Santa Clara, California 95054, U.S.A.
// * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; version 2 of the License.
// This program 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 General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
// For the avoidance of doubt, and except that if any non-GPL license
// choice is available it will apply instead, Sun elects to use only
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// ========== Copyright Header End ============================================
#include "neptune_memory_map.vri"
#include "mac_shadow_class.vrh"
#include "xmac_shadow_class.vrh"
mac_shadow_cl mac_shadow_class[4];
xmac_shadow_cl xmac_shadow_class[4];
xmac_shadow_class[i] = new(i);
// The user provides a 33 bit address. If the register
// corresponding to the address does not exist in the shadow
// space, then the data_valid bit will be set to zero.
// Otherwise, the data and mask corresponding to the address
// will be provided to the user.
task get_data (bit [32:0] addr, var bit [31:0] data,
var bit [31:0] data_mask, var bit data_valid) {
addr1 = {1'b0,addr[31:0]};
case (addr1[31:0] & ADDRESS_RANGE_MASK) {
mac_shadow_class[port_id].get_data(addr1, data, data_mask, data_valid);
xmac_shadow_class[port_id].get_data(addr1, data, data_mask, data_valid);
} // end of task get_data
// The user provides a 33 bit address and 32 bit data.
// If the address exists in the shadow space then the
// data is updated. If the address does not exist, then
// it is ignored -- no error message results from attempting
// to updated non-existant locations.
task put_data (bit [32:0] addr, bit [31:0] data) {
addr1 = {1'b0,addr[31:0]};
case (addr1[31:0] & ADDRESS_RANGE_MASK) {
mac_shadow_class[port_id].put_data(addr1, data);
xmac_shadow_class[port_id].put_data(addr1, data);
} // end of task put_data