Data can be referenced from the monitor debugger either in the virtual space or in the real memory space.
Data location is specified in this form:
|
address{;window} |
|
NOTE |
The data always displays in hexadecimal. |
The address of a virtual element is specified in this form:
|
[r reg|{.}fid][.|,]disp |
The base frame-ID (FID) is either the content of the register or a FID number in decimal or in hexadecimal, prefixed by a period. The displacement is either expressed in decimal, prefixed by a comma, or in hexadecimal, prefixed by a period.
Example(s)
Offset x'300' in frame 1.
|
1.300 |
Offset 16 in frame x'12'.
|
.12,16 |
Offset x'100' off the location pointer at by register 3.
|
r3.100 |
The address of a monitor element is specified in this form:
|
{ [l|g] }.hexaddress{ [+|-] {.}offset} |
or
|
/symbol{ [+|-] {.}offset} |
where
|
l |
Used for local data. |
|
g |
Used for global data. |
The second form requires the presence of the file sdb.sym on the current directory or on /usr/lib/pick. This file is not shipped with the system. It is reserved for development purposes only.
The optional offset, which is added to or subtracted from the n base address, is either expressed in decimal or in hexadecimal, if prefixed by a period.
Example(s)
Absolute address.
|
.40000100 |
First address in the local data space.
|
l.0 |
Offset x'10' off the address x'100' in global data space.
|
g.100+.10 |
Address of symbol sys.time.
|
/sys.time |
Offset +x'100' off the symbol tcb0.
|
/tcb0+.100 |
The window specifies the number of bytes to display. The window is expressed in decimal or in hexadecimal (prefixed by a period). The default window size is 4. When using a symbolic name, the window is set automatically.