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}
The address of a virtual element is specified in this form:
[rreg|{.}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.
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.
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.