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[/] [ao486/] [trunk/] [ao486_tool/] [src/] [ao486/] [module/] [memory/] [WriteListener.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; import java.util.HashMap; public class WriteListener implements Listener { public interface WriteInterface { void written(int cycle) throws Exception; void write_page_fault(int cycle, long cr2, long error_code) throws Exception; void write_ac_fault(int cycle) throws Exception; } public void write(int cycle, long cpl, long address, long length, boolean lock, boolean rmw, long data, WriteListener.WriteInterface write_interface) throws Exception { if(map.containsKey(cycle)) throw new Exception("Double write in cycle: " + cycle); Input input = new Input(); input.write_address = address; input.write_cpl = cpl; input.write_length = length; input.write_lock = lock; input.write_rmw = rmw; input.write_data = data; map.put(cycle, input); write_map.put(cycle, write_interface); } //------------------------------ @Override public void set_input(int cycle, Input input) throws Exception { if(write != null && map.containsKey(cycle)) throw new Exception("Overlapping write detected on cycle " + cycle); if(write != null) { input.write_do = true; input.write_cpl = write_input.write_cpl; input.write_address = write_input.write_address; input.write_length = write_input.write_length; input.write_lock = write_input.write_lock; input.write_rmw = write_input.write_rmw; input.write_data = write_input.write_data; } Input local_input = map.get(cycle); if(local_input != null) { write = write_map.get(cycle); input.write_do = true; input.write_cpl = local_input.write_cpl; input.write_address = local_input.write_address; input.write_length = local_input.write_length; input.write_lock = local_input.write_lock; input.write_rmw = local_input.write_rmw; input.write_data = local_input.write_data; write_input = input; } } @Override public void get_output(int cycle, Output output) throws Exception { if(write == null && output.write_page_fault == false && (output.write_done || output.write_page_fault || output.write_ac_fault)) { throw new Exception("Unexpected write done."); } if(output.write_done && output.write_page_fault) throw new Exception("Double write result."); if(output.write_done && output.write_ac_fault) throw new Exception("Double write result."); if(output.write_page_fault && output.write_ac_fault) throw new Exception("Double write result."); if(write != null && output.write_done) { write.written(cycle); write = null; } if(write != null && output.write_page_fault) { write.write_page_fault(cycle, output.tlb_write_pf_cr2, output.tlb_write_pf_error_code); write = null; } if(write != null && output.write_ac_fault) { write.write_ac_fault(cycle); write = null; } } /* //Input public boolean write_do = false; public long write_cpl = 0; //2 public long write_address = 0; //32 public long write_length = 0; //3 public boolean write_lock = false; public boolean write_rmw = false; public long write_data = 0; //32 //Output public boolean write_done; public boolean write_page_fault; public boolean write_ac_fault; */ WriteInterface write; Input write_input; HashMap<Integer, Input> map = new HashMap<>(); HashMap<Integer, WriteInterface> write_map = new HashMap<>(); }