supply leading zeros
of
the address,
but
can type any
non-valid hexadecimal character after the last entered digit.
If
you enter an invalid address, such as too large
an
address,
the
370
Processor Control utility forces the address
to
zero.
The storage address field is unlocked, even if the processor
is
running. You may display storage at all times
but
can only
alter it if the processor
is
stopped. You must press the enter
key to refresh the storage data
on
the screen.
In
other
words, the storage data
on
the screen
is
not constantly
updated as a running program
is
changing it. You must
request periodic updates,if required, by pressing the enter
key. You cannot update displayed registers this way. The
contents of displayed registers are only updated when the
processor
is
stopped.
If
you enter an invalid character in any of the input fields
(except the storage edit address and address compare stop
fields), the alarm will sound, the input field will be displayed
in reverse video format, and the cursor will
be
placed under
the invalid character prompting you for a correction.
F7 and F8 Keys -
Page
Forward and
Backward
Press the
F8
key to have the next (higher address) block of
storage displayed
on
the screen. Press the
F7
key to have
the previous (lower address) block of storage displayed.
F6 Key - EBCDIC (On/Off)
Press the
F6
key to display the EBCDIC representation of
the data. The
EBCDIC
representation overlays the
instruction area of the screen.
Press the
F6
key again to
have the instructions displayed again.
Since
the
instruction
display
is
generally more important then the
EBCDIC
display, if you press almost any of the attention generating
keys
(F
1 ,F2,F3, etc.) the instructions reappear
on
the
screen.
Only the
F7, F8,
and
ENTER
keys
don't
cause this
to
happen.
B-6
VM/PC
Users Guide
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