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[/] [usb11/] [trunk/] [rtl/] [systemc/] [usb_ram512x8.cpp] - Rev 13
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///////////////////////////////////////////////////////////////////// //// //// //// USB RAM //// //// //// //// SystemC Version: usb_ram512x8.cpp //// //// Author: Alfredo Luiz Foltran Fialho //// //// alfoltran@ig.com.br //// //// //// //// //// ///////////////////////////////////////////////////////////////////// //// //// //// Verilog Version: generic_dpram.v //// //// Copyright (C) 2000 Authors and OPENCORES.ORG //// //// www.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 SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY //// //// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED //// //// TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS //// //// FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL THE AUTHOR //// //// OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, //// //// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES //// //// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE //// //// GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR //// //// BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF //// //// LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT //// //// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT //// //// OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE //// //// POSSIBILITY OF SUCH DAMAGE. //// //// //// ///////////////////////////////////////////////////////////////////// #include "systemc.h" #include "usb_ram512x8.h" void usb_ram512x8::dout_update(void) { dout.write((oe.read() && rce.read()) ? dout_reg.read() : (sc_uint<8>)0); } void usb_ram512x8::read(void) { if (rce.read()) dout_reg.write(mem[raddr.read()]); } void usb_ram512x8::write(void) { if (wce.read() && we.read()) mem[waddr.read()] = din.read(); }