162 lines
3.8 KiB
D
162 lines
3.8 KiB
D
/+
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+ device/paddle.d
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+
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+ Copyright: 2007 Gerald Stocker
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+
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+ This file is part of Twoapple.
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+
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+ Twoapple is free software; you can redistribute it and/or modify
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+ it under the terms of the GNU General Public License as published by
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+ the Free Software Foundation; either version 2 of the License, or
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+ (at your option) any later version.
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+
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+ Twoapple 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
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+ GNU General Public License for more details.
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+
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+ You should have received a copy of the GNU General Public License
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+ along with Twoapple; if not, write to the Free Software
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+ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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+/
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module device.paddle;
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import device.base;
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import timer;
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import memory;
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class Paddles
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{
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Timer timer;
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int numPaddles;
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int[4] onTrigger;
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bool[4] stillTiming;
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ubyte[4] switchVal;
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this()
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{
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numPaddles = 4;
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}
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void reboot()
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{
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onTrigger[0..4] = 1380; // XXX only if no real joystick ??
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stillTiming[0..4] = false;
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switchVal[0..4] = 0;
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}
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// XXX II: C07X | IIe Orig: C07X | IIe Enh: C070-C07E
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// (IOU gets C07F)
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// IIc: as IIe Enh, plus VBLINT?
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mixin(InitSwitches("", [
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mixin(MakeSwitch(
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[0xC070, 0xC071, 0xC072, 0xC073, 0xC074, 0xC075, 0xC076, 0xC077,
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0xC078, 0xC079, 0xC07A, 0xC07B, 0xC07C, 0xC07D, 0xC07E],
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"R0W", "trigger")),
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mixin(MakeSwitch([0xC064, 0xC06C], "R7", "check_pdl_0")),
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mixin(MakeSwitch([0xC065, 0xC06D], "R7", "check_pdl_1")),
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mixin(MakeSwitch([0xC066, 0xC06E], "R7", "check_pdl_2")),
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mixin(MakeSwitch([0xC067, 0xC06F], "R7", "check_pdl_3"))
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]));
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void update(int pdl, int value)
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{
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onTrigger[pdl] = value ? value : 1;
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}
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ubyte check_pdl_0()
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{
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return switchVal[0];
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}
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ubyte check_pdl_1()
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{
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return switchVal[1];
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}
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ubyte check_pdl_2()
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{
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return switchVal[2];
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}
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ubyte check_pdl_3()
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{
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return switchVal[3];
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}
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void trigger()
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{
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for (int i = 0; i < numPaddles; ++i)
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{
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if (stillTiming[i]) return;
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}
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for (int i = 0; i < numPaddles; ++i)
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{
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if (onTrigger[i] == 0) onTrigger[i] = 1;
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switchVal[i] = 0x80;
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}
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timer.new Counter(onTrigger[0], &pdl_0_expired);
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timer.new Counter(onTrigger[1], &pdl_1_expired);
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if (numPaddles > 2)
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{
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timer.new Counter(onTrigger[2], &pdl_2_expired);
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timer.new Counter(onTrigger[3], &pdl_3_expired);
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}
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}
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bool pdl_0_expired()
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{
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stillTiming[0] = false;
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switchVal[0] = 0x00;
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return false;
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}
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bool pdl_1_expired()
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{
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stillTiming[1] = false;
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switchVal[1] = 0x00;
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return false;
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}
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bool pdl_2_expired()
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{
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stillTiming[2] = false;
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switchVal[2] = 0x00;
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return false;
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}
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bool pdl_3_expired()
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{
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stillTiming[3] = false;
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switchVal[3] = 0x00;
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return false;
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}
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}
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// NOTE: IIe Unenhanced uses Paddles_II; IIe enhanced uses Paddles
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// (because C07F is handled first by IOU)
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class Paddles_II : Paddles
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{
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mixin(InitSwitches("super", [
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mixin(MakeSwitch([0xC07F], "R0W", "trigger"))
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]));
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}
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// XXX IIc: 0xC07X resets VBLINT along with triggering timers,
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// C07E/C07F as IIe enhanced, maybe more? (and there
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// are only two paddles, so no C066/C067/C06E/C06F)
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class Paddles_IIc : Paddles
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{
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// XXX add the switches
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mixin(EmptyInitSwitches());
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this()
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{
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super();
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numPaddles = 2;
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}
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}
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