HP 3000 Manuals HP 3000 Manuals
MODIFY UPDATE
Modifies the specified item in the update register.
Syntax
{MODIFY UPDATE} item_name [(subscript)] [new_value]
{MU }
Parameters
item_name The name of the item to modify in the UPDATE register.
subscript A numeric value used to select a particular element in a
single dimensional array. If this parameter is omitted
and the item being modified is an array, only the first
element in the array is modified. If this parameter is
specified and the item is not an array, a warning
message is displayed and the item is not modified.
new_value The value to be assigned to the specified item in the
update register. If you do not specify a new value for
the update register item, the current value is
displayed. Then, you can either enter the new value or
press Return to leave the update register item
unchanged.
Discussion
This command allows you to modify items in the update register
selectively. The new value is converted to the data type of the item
before it is placed in the update register. If the value does not fit
into the storage length of the item, it is truncated and a warning
message is displayed. This truncation can cause erroneous results during
the program execution, so before modifying an item, be aware of the
storage length of the item you are modifying. You cannot use this
command to add or delete items from the update register.
Example
The following example shows the modification of the update register.
TRANDEBUG> MODIFY UPDATE item1 123
TRANDEBUG> DISPLAY UPDATE
UPDATE REGISTER:
ITEM1 EQ : 123
ITEM2 GT : ABC
TRANDEBUG> MODIFY UPDATE item2
ITEM2 : <ABC> := <DEF>
TRANDEBUG> DISPLAY UPDATE
UPDATE REGISTER:
ITEM1 EQ : 123
ITEM2 GT : DEF