TSTATE_CCR
tf->tf_tstate = (u_int64_t)(tf->tf_tstate & ~TSTATE_CCR) | (scp->sc_tstate & TSTATE_CCR);
tf->tf_tstate = (tf->tf_tstate & ~TSTATE_CCR) |
(regs->r_tstate & TSTATE_CCR);
~((PSTATE_PEF << TSTATE_PSTATE_SHIFT) | TSTATE_CCR);