Priviledged Instructions

CHME Change Mode to Excecutive
CHMK Change Mode to Kernel
CHMS Change Mode to Supervisor
CHMU Change Mode to User
HALT Halt
LDPCTX Load Process Context
MFPR Move from Internal Process Register
MTPR Move to Internal Process Register
PROBER Probe Read Access
PROBEW Probe Write Access
REI Return From Interrupt
SVPCTX Save Process Context