returning control to CP and not in performing normal
the instruction is used for communication between a virtual aachine and
CP. The machine language format of
83
Rx
,
is a register that contains a return code.
what function to perform. The codes defined for the general
are described in this section. The code
Because
does in a real
in a virtual
execution of a
processor in which it is executing, including the processor version
nuaber. If
will be
interrupts disabled. This prevents loss of status information
pertaining to the diagnose operation such as condition codes and sense
data.
CP Introduction 1-49