PSR_BTYPE_MASK
const char *btype_str = btypes[(pstate & PSR_BTYPE_MASK) >>
regs->pstate &= ~PSR_BTYPE_MASK;
regs->pstate &= ~PSR_BTYPE_MASK;
regs->pstate &= ~PSR_BTYPE_MASK;
*vcpu_cpsr(vcpu) &= ~PSR_BTYPE_MASK;
uc->uc_mcontext.pstate &= ~PSR_BTYPE_MASK;
write(1, &"00011011"[((uc->uc_mcontext.pstate & PSR_BTYPE_MASK)