1static int
2arch_set_error(struct tcb *tcp)
3{
4	sh_r0 = -tcp->u_error;
5	return upoke(tcp->pid, 4 * REG_REG0, sh_r0);
6}
7
8static int
9arch_set_success(struct tcb *tcp)
10{
11	sh_r0 = tcp->u_rval;
12	return upoke(tcp->pid, 4 * REG_REG0, sh_r0);
13}
14