mirror of
https://github.com/cmosher01/Epple-II.git
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49 lines
1.2 KiB
C++
49 lines
1.2 KiB
C++
/*
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epple2
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Copyright (C) 2008 by Christopher A. Mosher <cmosher01@gmail.com>
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This program 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 3 of the License, or
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(at your option) any later version.
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This program 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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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "videomode.h"
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VideoMode::VideoMode()
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{
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}
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unsigned char VideoMode::io(const unsigned short addr, const unsigned char b)
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{
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const int sw = (addr & 0xE) >> 1;
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const bool on = addr & 0x1;
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switch (sw)
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{
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case 0:
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this->swText = on; break;
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case 1:
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this->swMixed = on; break;
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case 2:
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this->swPage2 = on ? 1 : 0; break;
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case 3:
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this->swHiRes = on; break;
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}
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return b;
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}
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void VideoMode::powerOn()
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{
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this->swText = false;
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this->swMixed = false;
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this->swPage2 = 0;
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this->swHiRes = false;
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}
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