Virtual Machine Tool Set

Programmable Operator Rolling Console Facility for Virtual Machine

PROPROLL Index Page.

PROPROLL Installation Page.

PROPROLL Programmable Operator Rolling Console Facility



                                                                                
PROPROLL is a VM/CMS based facility that provides the VM operator with a console
that not only captures all messages directed to it, but presents the messages
in a "rolling" fashion.  All messages enter from the bottom and progress to the
top of the display.  
 
Messages that move off the top of the display are re-viewable by scolling back the
screen using the PF keys to control backward and forward motion.
 
This program was designed to be used in conjunction with IBM's Programmable Operator
Facilty (PROP).  PROP would run in a disconnected mode on the Operator virtual machine.
The machine that PROPROLL executes would act act as the Logical Operator as designated
by the Routing Table of the PROP.  All messages would be routed to the Logical
Operator that would act as the message and control focal point for VM Operations.
 
This mode of operation has several advantages:
 
     The user would never have to clear a "MORE...'  or  'HOLDING..' condition
     each time that the console filled with messages.
 
     The user is able to scroll back, currently for 1000 lines, to any messages 
     that have already rolled off the screen.
 
     Messages that a pending to be displayed are held while the program is in
     scroll mode.   A flag indicating pending messages is signalled to the user.

     Commands can be issued to either the Logical Operator or the System Operator
     by way of the OP and CP commands.
 
     The last 50 commands are saved and can be retrieved with a PF key.

Invocation Exec

Operational Commands and Program Function Key settings

OPERATION: Start: execute PROPROLL Stop: rollexit or HX Screen Capture: enter SOFTCOPY Command Line: Lower left-hand corner. Depressing the ENTER key will always cause the cursor to return to this home position.

Function Transition Commands

PF3 Exits the facility. PF6 Pops command stack and retrieves prior command entered. PF7 Places facility into BACKWARD scroll mode. Subsequest PF7s will move back one screen. examined will always be the one running the monitor. To examine any other user, simply enter the name in PF8 Places facility into FORWARD scroll mode. Subsequest PF8s will move forward one screen. PF12 Returns the screen mode from scrolling to Normal roll mode. the possible major transition commands. PA1 This will cause a CP READ to occur.

Ascertaining Display Terminal Type

The program uses the CP Diagnose X'8C' in determining the terminal display surface characteristics. For local attached non-SNA devices the CP Control Program acquires this from the terminal controller directly. This CP function returns to the program information including the numbe of display surface column and row cells. This is used as the basis for constructing the length of the 3270 IOS datastream, NOT the terminal that may be physically connected to the controller. For SNA devices the characteristics are still determined by the network LOGMODE tables.
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