VisualDSP++ 4.5 Loader and Utilities Manual - Analog Devices

Assembly Source Files
File Formats
Assembly source files (.asm) are text files containing assembly instructions,
assembler directives, and (optionally) preprocessor commands. For information
on assembly instructions, see the Programming Reference manual
for your processor.
The processor’s instruction set is supplemented with assembly directives.
Preprocessor commands control macro processing and conditional assembly
or compilation.
For information on the assembler and preprocessor, see the
VisualDSP++ 4.5 Assembler and Preprocessor Manual.
Assembly Initialization Data Files
Assembly initialization data files (.dat) are text files that contain fixed- or
floating-point data. These files provide initialization data for an assembler
.VAR directive or serve in other tool operations.
When a .VAR directive uses a .dat file for data initialization, the assembler
reads the data file and initializes the buffer in the output object file (.doj).
Data files have one data value per line and may have any number of lines.
The .dat extension is explanatory or mnemonic. A directive to
#include can take any file name and extension as an
argument.
Fixed-point values (integers) in data files may be signed, and they may be
decimal, hexadecimal, octal, or binary based values. The assembler uses
the prefix conventions listed in Table A-1 to distinguish between numeric
formats.
For all numeric bases, the assembler uses words of different sizes for data
storage. The word size varies by the processor family,
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