Returns the bit- or byte-relative offset of a component specified
through the path specification, relative to the outer structure.
Examples |
 |
$nmdebug > symopen gradtyp.demo
|
Opens the symbolic data type file gradtyp.demo. It is assumed that the
Debug variable addr contains the address
of a StudentRecord data structure
in virtual memory. The following code fragment is from this file:
CONST MINGRADES = 1; MAXGRADES = 10;
MINSTUDENTS = 1; MAXSTUDENTS = 5;
TYPE
GradeRange = MINGRADES .. MAXGRADES;
GradesArray = ARRAY [ GradeRange ] OF integer;
Class = ( SENIOR, JUNIOR, SOPHOMORE, FRESHMAN );
NameStr = string[8];
StudentRecord = RECORD
Name : NameStr;
Id : Integer;
Year : Class;
NumGrades : GradeRange;
Grades : GradesArray;
END;
$nmdebug > wl SYMADDR("StudentRecord.Name")
$0
|
Print the byte offset of the name field for StudentRecord. Since
it is the first item in the record, its offset is zero.
$nmdebug > wl SYMADDR("StudentRecord.NumGrades" 1)
$a8
|
Print the bit offset of the NumGrades field for StudentRecord.
$nmdebug > wl SYMADDR("StudentRecord.Grades[4]" #32)
$9
|
Print the word offset of the fourth element of the grades field for
StudentRecord.
