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[/] [ao486/] [trunk/] [ao486_tool/] [src/] [ao486/] [module/] [memory/] [ReadListener.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 ReadListener implements Listener { public interface ReadInterface { void read(int cycle, long data) throws Exception; void read_page_fault(int cycle, long cr2, long error_code) throws Exception; void read_ac_fault(int cycle) throws Exception; } public void read(int cycle, long cpl, long address, long length, boolean lock, boolean rmw, ReadInterface read_interface) throws Exception { if(map.containsKey(cycle)) throw new Exception("Double read in cycle: " + cycle); Input input = new Input(); input.read_address = address; input.read_cpl = cpl; input.read_length = length; input.read_lock = lock; input.read_rmw = rmw; map.put(cycle, input); read_map.put(cycle, read_interface); } //------------------------------ @Override public void set_input(int cycle, Input input) throws Exception { if(read != null && map.containsKey(cycle)) throw new Exception("Overlapping read detected on cycle " + cycle); if(read != null) { input.read_do = true; input.read_cpl = read_input.read_cpl; input.read_address = read_input.read_address; input.read_length = read_input.read_length; input.read_lock = read_input.read_lock; input.read_rmw = read_input.read_rmw; } Input local_input = map.get(cycle); if(local_input != null) { read = read_map.get(cycle); input.read_do = true; input.read_cpl = local_input.read_cpl; input.read_address = local_input.read_address; input.read_length = local_input.read_length; input.read_lock = local_input.read_lock; input.read_rmw = local_input.read_rmw; read_input = input; } } @Override public void get_output(int cycle, Output output) throws Exception { if(read == null && output.read_page_fault == false && (output.read_done || output.read_page_fault || output.read_ac_fault)) throw new Exception("Unexpected read done."); if(output.read_done && output.read_page_fault) throw new Exception("Double read result."); if(output.read_done && output.read_ac_fault) throw new Exception("Double read result."); if(output.read_page_fault && output.read_ac_fault) throw new Exception("Double read result."); if(read != null && output.read_done) { read.read(cycle, output.read_data); read = null; } if(read != null && output.read_page_fault) { read.read_page_fault(cycle, output.tlb_read_pf_cr2, output.tlb_read_pf_error_code); read = null; } if(read != null && output.read_ac_fault) { read.read_ac_fault(cycle); read = null; } } /* //Input boolean read_do = false; long read_cpl = 0; //2 long read_address = 0; //32 long read_length = 0; //4 boolean read_lock = false; boolean read_rmw = false; //Output boolean read_done; boolean read_page_fault; boolean read_ac_fault; long read_data; //64 */ ReadInterface read; Input read_input; HashMap<Integer, Input> map = new HashMap<>(); HashMap<Integer, ReadInterface> read_map = new HashMap<>(); }