|	one thought - is it necessary for us to synchronize include/bus.h
 | 	among all sh3-based platforms?  dreamcast/include/bus.h looks
 |	powerful enough to do that...

 bus_space, bus_dma are machine design specific. I think it should be
implementated appropriately. Some simple designed machine will prefer
#define or inline function.
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UCHIYAMA Yasushi
uch@nop.or.jp