#include <u.h>#include <libc.h>#include <ureg.h> voidnotejmp(void *vr, jmp_buf j, int ret){	struct Ureg *r = vr; 	r->ax = ret;	if(ret == 0)		r->ax = 1;	r->ip = j[JMPBUFPC];	r->sp = j[JMPBUFSP] + 8;	noted(NCONT);}