Memory Views Collapse Redundant Lines

TPFUG_Req_Number: V09102S
ORIGIN DATE: 03/18/2009
REQUIREMENT ABSTRACT

The memory view would be able to collapse redundant lines seen in the
memory views.

REQUIREMENT DESCRIPTION

When the user monitors an address or variable in the memory view, a
monitor is added to the left most pane of the memory view which
corresponds to a given address. The content of that address is shown
in the rendering panes (by default Hex and EBCDIC). Today, all of the
content at that memory address is shown to the user. There may be
redundant data on many contiguous lines which causes the user to have
to scroll through many pages to find the desired content.
For example, a line may contain many lines with zeroed data:

: 0xDDFFF30 <Hex>
Address 0 - 3 4 - 7 8 - B C - F
000000000DDFFF30 00000000 00000000 00000000 00000000
000000000DDFFF40 00000000 00000000 00000000 00000000
000000000DDFFF50 00000000 00000000 00000000 00000000
000000000DDFFF60 00000000 00000000 00000000 00000000
000000000DDFFF70 00000000 00000000 00000000 00000000
000000000DDFFF80 00000000 00000000 00000000 00000000
000000000DDFFF90 00000000 00000000 00000000 00000000
000000000DDFFFA0 00000000 00000000 00000000 00000000
000000000DDFFFB0 00000000 00000000 00000000 00000000
000000000DDFFFC0 00000000 00000000 00000000 00000000
000000000DDFFFD0 00000000 00000000 00000000 00000000
000000000DDFFFE0 00000000 00000000 00000000 00000000
000000000DDFFFF0 00000000 00000000 00000000 00000000
000000000DE00000 0DE0017C 0DE0401C 0DE0001C D6D6E3D9
000000000DE00010 00000000 00000000 00000000 0DE0003C

This feature would allow the user to collapse the redundant lines into
a single line. For example:

: 0xDDFFF30 <Hex>
Address 0 - 3 4 - 7 8 - B C - F
000000000DDFFF30 00000000 00000000 00000000 00000000
000000000DE00000 0DE0017C 0DE0401C 0DE0001C D6D6E3D9
000000000DE00010 00000000 00000000 00000000 0DE0003C

If it is preferable, a line could be inserted that describes the lines
that have been collapsed. For example:

: 0xDDFFF30 <Hex>
Address 0 - 3 4 - 7 8 - B C - F
000000000DDFFF30 40404040 00000000 40404040 00000000
Adress range DDFFF40 - DEFFFFF are identical to DDFFF30
000000000DE00000 0DE0017C 0DE0401C 0DE0001C D6D6E3D9
000000000DE00010 00000000 00000000 00000000 0DE0003C

This could also be used where memory is not readable. For example:

: 0xB3FFF70 <Hex>
Address 0 - 3 4 - 7 8 - B C - F
000000000B3FFF70 ???????? ???????? ???????? ????????
Adress range B3FFF80 - B3FFFFF are identical to B3FFF70
000000000B400000 00000000 00000000 C4C2E4C7 C3E5E9E9
000000000B400010 80B00000 00000000 00000000 00000000

SOLUTION CONSIDERATIONS

This feature should be able to be turned on or off easily.