i8253.h

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/*
Fake86: A portable, open-source 8086 PC emulator.
Copyright (C)2010-2012 Mike Chambers
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#define PIT_MODE_LATCHCOUNT 0
#define PIT_MODE_LOBYTE 1
#define PIT_MODE_HIBYTE 2
#define PIT_MODE_TOGGLE 3
struct i8253_s {
uint16_t chandata[3];
uint8_t accessmode[3];
uint8_t bytetoggle[3];
uint32_t effectivedata[3];
float chanfreq[3];
uint8_t active[3];
uint16_t counter[3];
};