System Debug Reference Manual (32650-90888)

Chapter 4 139
System Debug Command Specifications :-Exit
ENV
The CM DB register.
DBDST U16 (cmreg) r dm
The CM DB DST number.
DISP BOOL (misc) r
A Boolean value that indicates whether or not the dispatcher is currently
running. This value is always FALSE in Debug.
DL U16 (cmreg) r dm
The CM DL register.
DP U32 (nmreg) r dm
NM global data pointer register. (Alias for R27)
DSTBASE LPTR (misc) rW
The virtual address of the CM DST table.
DUMPALLOC_LZ U16 (misc) rw
Determines the percentage of disk space DAT will preallocate before
restoring a dump encoded with LZ data compression. The percentage is
relative to the space required to contain a fully uncompressed dump. This
means if you normally expect your dumps to be compressed by 60%,
setting DUMPALLOC_LZ to 40 should preallocate enough disk space to
contain the entire dump.
DUMPALLOC_RLE U16 (misc) rw
Similar to DUMPALLOC_LZ, except that it applies to dumps encoded with
RLE data compression.
DUMP_COMP_ALGO STR (misc) r
Set to the data compression algorithm used by the currently opened dump.
Possible values are:
"NONE" The dump is not compressed.
"RLE" The dump is RLE-compressed.
"LZ" The dump is LZ-compressed.
DYING_DEBUG BOOL (system) rW
When a process is being killed, its state is said to be "dying." Once a
process is in this state, Debug normally ignores all breakpoints, traps, and
so on. If this system-wide variable is set to TRUE, Debug stops for all
events even if the process is dying. This is useful to operating system
developers only. It is possible to cause system failures if this variable is
turned on and breakpoints are set at inappropriate locations. The default
value for this variable is FALSE.
This variable is not available in DAT.
ECHO_CMDS BOOL (cmd) rw *