In addition to the comparison of the reference address versus the region descriptor's start
and end addresses, the optional process identifier is examined against the region
descriptor's PID and PIDMASK fields. A process identifier hit term is formed as follows:
pid_hit = ~RGDn_Word2[MxPE] |
RGDn_Word3[PIDMASK]) == (RGDn_Word3[PID] | RGDn_Word3[PIDMASK]))
But where I can set current_pid ?