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Chapter 11: Emulator Commands
—SYMB—
<FILENAME>
This is an UNIX path specifying a source file. If no file is specified, and the
identifier referenced is not a global symbol in the executable file that was loaded,
then the default file is assumed (the last absolute file specified by a display
local_symbols_in command). A default file is only assumed when other
parameters (such as line) in the —SYMB— specification expect a file.
line
This specifies that the following numeric value references a line number in the
specified source file.
<LINE#>
<IDENTIFIER>
This is the name of an identifier as declared in the source file.
SCOPE
Scope is the name of the portion of the program where the specified identifier is
defined or active (such as a procedure block).
segment
This indicates that the following string specifies a standard segment (such as
PROG, DATA, or COMN) or a user-defined segment in the source file.
<SEG_NAME>
Prompts you for entry of the segment name.
text_range
The range of addresses beginning with the lowest address occupied by any code in
the procedure and ending with the highest address occupied by any code in the
procedure. Normally, the text_range will be the same as the entry_exit_range;
some compilers may rearrange code so that the return instruction (for example) is
not at the highest address in the range occupied by code of the procedure.
(<TYPE>)
When two identifier names are identical and have the same scope, you can
distinguish between them by entering the type (in parentheses). Do not type a space
between the identifier name and the type specification. The type will be one of the
following:
filename
fsegment
module
486
Prompts you for the line number of the source file.
Specifies that the identifier is a source file.
This provides an alternate way to reference a file segment in a
command (example: myfile.c:PROG(fsegment)). It is better to
use the keyword segment (example: myfile.c: segment
PROG). The "segment" keyword is preferred because it will
do scanning for PROG, Prog, prog, and other expressions of the
program segment in the example line. The fsegment keyword
will only scan for the one expression (PROG).
These refer to module symbols. For most C compilers, these
names derive from the source file name. For Ada, they are
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