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Diffstat (limited to 'src/cortexelf-v1/ao_1802.h')
| -rw-r--r-- | src/cortexelf-v1/ao_1802.h | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/src/cortexelf-v1/ao_1802.h b/src/cortexelf-v1/ao_1802.h new file mode 100644 index 00000000..daa49f66 --- /dev/null +++ b/src/cortexelf-v1/ao_1802.h @@ -0,0 +1,34 @@ +/* + * 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_ */ |