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[/] [ao486/] [trunk/] [ao486_tool/] [src/] [ao486/] [module/] [memory/] [PrefetchListener.java] - Rev 2
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/* * Copyright (c) 2014, Aleksander Osman * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, this * list of conditions and the following disclaimer. * * * Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER 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. */ package ao486.module.memory; public class PrefetchListener implements Listener { public interface PrefetchInterface { void prefetched(int cycle, long value, long size) throws Exception; void prefetch_page_fault(int cycle, long cr2, long error_code) throws Exception; void prefetch_gp_fault(int cycle) throws Exception; } public void prefetch(long cpl, long eip, long cs_base, long cs_limit, PrefetchListener.PrefetchInterface prefetch_interface) throws Exception { prefetch_input = new Input(); prefetch_input.cpl = cpl; prefetch_input.eip = eip; prefetch_input.cs_base = cs_base; prefetch_input.cs_limit = cs_limit; prefetch = prefetch_interface; } //------------------------------ @Override public void set_input(int cycle, Input input) throws Exception { input.cpl = prefetch_input.cpl; input.eip = prefetch_input.eip; input.cs_base = prefetch_input.cs_base; input.cs_limit = prefetch_input.cs_limit; input.prefetchfifo_accept_do = true; } @Override public void get_output(int cycle, Output output) throws Exception { if(output.prefetchfifo_accept_empty == false) { long value = output.prefetchfifo_accept_data.longValue(); long size = output.prefetchfifo_accept_data.shiftRight(64).longValue() & 0xFL; if(size == 14) { //page fault prefetch.prefetch_page_fault(cycle, output.tlb_code_pf_cr2, output.tlb_code_pf_error_code); } else if(size == 15) { //gp fault prefetch.prefetch_gp_fault(cycle); } else if(size > 0) { prefetch.prefetched(cycle, value, size); } } } /* //Input public long cpl = 0; //2 public long eip = 0; //32 public long cs_base = 0; //32 public long cs_limit = 0; //32 public boolean prefetchfifo_accept_do = false; //Output public BigInteger prefetchfifo_accept_data; //68 public boolean prefetchfifo_accept_empty; public long tlb_code_pf_cr2; //32 public long tlb_code_pf_error_code; //16 */ PrefetchInterface prefetch; Input prefetch_input; }