#include <u.h>#include <libc.h>#include <ureg.h> int	__noterestore(void); voidnotejmp(void *vr, jmp_buf j, int ret){	struct Ureg *r = vr; 	/*	 * song and dance to get around the kernel smashing r3 in noted	 */	r->r4 = ret;	if(ret == 0)		r->r4 = 1;	r->r5 = j[JMPBUFPC] - JMPBUFDPC;	r->pc = (ulong)__noterestore;	r->sp = j[JMPBUFSP];	noted(NCONT);}