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> tc->setMiscReg(MISCREG_PRV, PRV_M);
> STATUS status = tc->readMiscReg(MISCREG_STATUS);
> status.mie = 0;
> status.mprv = 0;
> tc->setMiscReg(MISCREG_STATUS, status);
> tc->setMiscReg(MISCREG_MCAUSE, 0);
>