_REG_PSR
uc.uc_mcontext.__gregs[_REG_PSR] = sc->sc_psr;
r[_REG_PSR] = tf->tf_psr;
(r[_REG_PSR] & PSR_ICC);
gr[_REG_PSR] = TSTATECCR_TO_PSR(tf->tf_tstate);
PSRCC_TO_TSTATE(gr[_REG_PSR]);
gr[_REG_PSR] = TSTATECCR_TO_PSR(tf->tf_tstate);
PSRCC_TO_TSTATE(gr[_REG_PSR]);