Analog Devices VISUALDSP++ 3.5, Руководство пользователя

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Vi+ 3.5 Loader Manual 1-9
for 16-Bit Processors
Introduction
File Searches
File searches are important in the loader operation. The loader supports
relative and absolute directory names, default directories. File searches
occur as follows.
• Specified path—If you include relative or absolute path informa-
tion in a file name, the loader searches only in that location for the
file.
• Default directory—If you do not include path information in the
file name, the loader searches for the file in the current working
directory.
• Overlay and shared memory files—the loader recognizes overlay
memory files but does not expect these files on the command line.
Place the files in the same directory as the executable file that refers
to them. The loader can locate them when processing the
executable.
Figure 1-1. .DXE Files versus .LDR Files
Code
Data
Symbols
Debug Information
.DXE File
Code
Data
Symbols
Debug Information
.LDR File
A .DXE file includes:
Symbol table and section
information
Target processor's memory
layout
Degugging information
Code instructions
An .LDR file includes:
DSP instructions (code and
data)
Rudimentary formatting
All of the debugging information
has been taken out of the file