asm("ldwax,s	%2(%1), %0\n\tsync"
asm("ldwx,s	%2(%1), %0\n\tsync"
pmap_sdir_get(pa_space_t space){	paddr_t vtop, pa;	mfctl(CR_VTOP, vtop);	asm("ldwax,s	%2(%1), %0\n\tsync"	    : "=&r" (pa) : "r" (vtop), "r" (space));	return (pa);}