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31 lines
1.0 KiB
C
31 lines
1.0 KiB
C
#ifndef BUS_H
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#define BUS_H
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#include <stdint.h>
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#include "state.h"
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struct psx_bus_t;
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typedef struct psx_bus_t psx_bus_t;
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typedef void (*psx_bus_write_observer_t)(void*, uint32_t, uint32_t);
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psx_bus_t* psx_bus_create(void);
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void psx_bus_init(psx_bus_t*);
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uint32_t psx_bus_read32(psx_bus_t*, uint32_t);
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uint16_t psx_bus_read16(psx_bus_t*, uint32_t);
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uint8_t psx_bus_read8(psx_bus_t*, uint32_t);
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void psx_bus_write32(psx_bus_t*, uint32_t, uint32_t);
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void psx_bus_write16(psx_bus_t*, uint32_t, uint32_t);
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void psx_bus_write8(psx_bus_t*, uint32_t, uint32_t);
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uint32_t psx_bus_get_access_cycles(psx_bus_t*);
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uint32_t psx_bus_physical_address(uint32_t);
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void psx_bus_set_write_observer(psx_bus_t*, psx_bus_write_observer_t, void*);
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/* Only access_cycles is machine state. The device pointers and the write
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observer are host wiring and are left in place across a load. */
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void psx_bus_save_state(psx_bus_t*, psx_state_writer_t*);
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int psx_bus_load_state(psx_bus_t*, psx_state_reader_t*);
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void psx_bus_destroy(psx_bus_t*);
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#endif
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