bus_write_8        44 bsp/drv/arm/include/busio.h #define bus_write_8(addr, val)	(*((volatile uint8_t *)(addr)) = (val))
bus_write_8        47 bsp/drv/ppc/include/busio.h #define bus_write_8(addr, val)	(*((volatile uint8_t *)(IOBASE+addr)) = (val))
bus_write_8        33 bsp/drv/x86/arch/busio.S ENTRY(bus_write_8)