mirror of https://github.com/badvision/jace.git
83 lines
2.7 KiB
Java
83 lines
2.7 KiB
Java
/*
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* Copyright (C) 2012 Brendan Robert (BLuRry) brendan.robert@gmail.com.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301 USA
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*/
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package jace.apple2e.softswitch;
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import jace.apple2e.SoftSwitches;
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import jace.core.Computer;
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import jace.core.RAMEvent;
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import jace.core.RAMListener;
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import jace.core.SoftSwitch;
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/**
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* Very funky softswitch which controls Slot 3 / C8 ROM behavior (and is the
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* reason why some cards don't like Slot 3)
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* Created on February 1, 2007, 9:40 PM
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*
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* @author Brendan Robert (BLuRry) brendan.robert@gmail.com
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*/
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public class IntC8SoftSwitch extends SoftSwitch {
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/**
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* Creates a new instance of IntC8SoftSwitch
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*/
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public IntC8SoftSwitch() {
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super("InternalC8Rom", false);
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// INTC8Rom should activate whenever C3xx memory is accessed and SLOTC3ROM is off
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addListener(
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new RAMListener(RAMEvent.TYPE.ANY, RAMEvent.SCOPE.RANGE, RAMEvent.VALUE.ANY) {
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@Override
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protected void doConfig() {
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setScopeStart(0x0C300);
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setScopeEnd(0x0C3FF);
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}
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@Override
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protected void doEvent(RAMEvent e) {
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if (SoftSwitches.SLOTC3ROM.isOff()) {
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setState(true);
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}
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}
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});
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// INTCXRom shoud deactivate whenever CFFF is accessed
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addListener(
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new RAMListener(RAMEvent.TYPE.ANY, RAMEvent.SCOPE.ADDRESS, RAMEvent.VALUE.ANY) {
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protected void doConfig() {
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setScopeStart(0x0CFFF);
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}
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@Override
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protected void doEvent(RAMEvent e) {
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setState(false);
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}
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});
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}
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@Override
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protected byte readSwitch() {
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return 0;
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}
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@Override
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public void stateChanged() {
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if (Computer.getComputer().getMemory() != null) {
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Computer.getComputer().getMemory().configureActiveMemory();
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}
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}
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} |