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wW [ System Debug Reference Manual ] MPE/iX 5.0 Documentation


System Debug Reference Manual

wW 

Defines (enables) new windows. 

Syntax 

     VW  virtaddr  [name]        Virtual window
     ZW  realaddr                 Real Memory
     LW  Ldev.off                 LDEV (Secondary Storage) window
     TXW filename                 Text window

     UWm                         User window (see UWm command)

The VW and TXW commands allocate the next available virtual (V) or text
(TX) window.  The window is aimed at the specified address (V) or file
(TX). Finally, the window is marked as the "current window."

The LW and ZW commands aim/enable the real memory window (ZW) and the
LDEV window (LW) respectively.  There is only one of each of these
windows.

By default these windows are created with an initial length of three
lines (one banner line and two data lines).  The size of the windows may
be changed once they are created (Refer to the wL command.)

Parameters 

 virtaddr        The virtual window can be aimed at any Precision
                 Architecture space and offset address.  Virtaddr can be
                 a short pointer, a long pointer, or a full logical code
                 pointer.

 name            This is the name with which to label the virtual window
                 being defined.  If no name is specified, "Virtual" is
                 used as a default.

 realaddr        The real memory window can be aimed at any real address.

 Ldev.off        The LDEV window can be aimed at any valid disk LDEV
                 number at a specified byte offset.

 filename        The file name to which the text window is aimed.

Examples 

     %cmdebug > VW a.c0000000 SYSGLOB

Allocate a new virtual window and aim it at a.c0000000.  Label the window
with the name SYSGLOB.

     %cmdebug > ZW 1800 

Aim the real memory window to physical address 1800.

     $nmdebug > TXW TGRADES.DEMO.TELESUP 

Create and aim a text window at the file TGRADES.DEMO.TELESUP.

Limitations, Restrictions 

A total of seven virtual windows and three text windows are available.
There is only one LDEV and one real window.



MPE/iX 5.0 Documentation