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-rw-r--r--emu/bus.h28
1 files changed, 28 insertions, 0 deletions
diff --git a/emu/bus.h b/emu/bus.h
new file mode 100644
index 0000000..baa2fe2
--- /dev/null
+++ b/emu/bus.h
@@ -0,0 +1,28 @@
+#ifndef BUS_H
+#define BUS_H
+
+#include "device.h"
+
+enum {
+ MAX_NOF_DEVICES = 5
+};
+
+typedef struct registered_device_t {
+ device_t *device;
+ uint16_t from;
+ uint16_t to;
+} registered_device_t;
+
+typedef struct bus_t {
+ device_t base;
+ int nof_devices;
+ registered_device_t devices[MAX_NOF_DEVICES];
+} bus_t;
+
+void bus_init( bus_t *bus );
+void bus_register( bus_t *bus, device_t *device, uint16_t from, uint16_t to );
+uint8_t bus_read( void *obj, uint16_t addr );
+void bus_write( void *obj, uint16_t addr, uint8_t data );
+void bus_deinit( void *obj );
+
+#endif