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      1 static int
      2 arch_set_error(struct tcb *tcp)
      3 {
      4 	xtensa_a2 = -tcp->u_error;
      5 	return upoke(tcp->pid, REG_A_BASE + 2, xtensa_a2);
      6 }
      7 
      8 static int
      9 arch_set_success(struct tcb *tcp)
     10 {
     11 	xtensa_a2 = tcp->u_rval;
     12 	return upoke(tcp->pid, REG_A_BASE + 2, xtensa_a2);
     13 }
     14