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/*
* Copyright © 2017 Keith Packard <keithp@keithp.com>
*
* 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.
*/
#ifndef _AO_1802_H_
#define _AO_1802_H_
/* Signals muxed between 1802 and STM */
extern uint8_t MRD, TPB, TPA, MWR;
/* Decoded address driven by TPA/TPB signals */
extern uint16_t ADDRESS;
/* Decoded data, driven by TPB signal */
extern uint8_t DATA;
extern uint8_t SC;
#define SC_FETCH 0
#define SC_EXECUTE 1
#define SC_DMA 2
#define SC_INTERRUPT 3
#endif /* _AO_1802_H_ */
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