outb
#define outb(x,y) (archsw.arch_isaoutb((x),(y)))
outb(u_int port, u_char data)
#define outb(a,b) outb(b,a)
outb(u_int port, u_char data)
#define outb(a,v) (__outb((volatile u_int8_t *)(a), v))
#undef outb
#define outb(a, b) compiler_error