riscv/insns/scall.h

   1 switch (get_field(STATE.mstatus, MSTATUS_PRV))
   2 {
   3   case PRV_U: throw trap_user_ecall();
   4   case PRV_S: throw trap_supervisor_ecall();
   5   case PRV_H: throw trap_hypervisor_ecall();
   6   case PRV_M: throw trap_machine_ecall();
   7 }