z/VM: CP Commands and Utilities Reference - z/VM - IBM

EXTERNAL
Usage Notes
Messages
HCP002E Invalid operand - operand
You must enter the command at the end of the command line; characters
following CMD are interpreted as the CP command.
1. The BEGIN command is not required after you enter the EXTERNAL command.
2. Since there is no virtual processor address argument for code:
a. EXTERNAL 1200 cannot be an alternative syntax for EXTERNAL
MALFUNCTION cpuaddr
b. EXTERNAL 1201 cannot be an alternative syntax for EXTERNAL
EMERGENCY cpuaddr
c. EXTERNAL 1202 cannot be an alternative syntax for EXTERNAL CALL
cpuaddr.
Note: This is true because of the architectural requirement that only 1
external call can be pending for a virtual processor at any one time.
A bit in CR0 can be specified to mask this interrupt. Since the interrupt code
does not imply a bit in CR0:
a. EXTERNAL 40 is not an alternative syntax for EXTERNAL KEY.
b. EXTERNAL 80 is not an alternative syntax for EXTERNAL INTERVAL.
Note: This is true because of the architectural requirement that only 1
interval timer interrupt can be pending for a virtual processor at any
one time.
3. You can specify a CP command that you want to be processed after the
interrupt is reflected to your virtual machine. Use this in system testing.
HCP003E Invalid option - {option|command
contains extra option(s) starting with
option}
HCP026E Operand missing or invalid
434 z/VM: CP Commands and Utilities Reference