VisualDSP++ 4.5 Loader and Utilities Manual - Analog Devices

Debugger Files
/* 02 bytes logical width, 01 byte physical width */
00000000 /* reserved */
0x12 /* 1st data word, DM data is 8 bits */
0x56
0x9A
0xDE /* 4th (last) data word */
CRC16 /* optional, controlled by the -checksum switch */
Debugger Files
Debugger files provide input to the debugger to define support for simulation
or emulation of your program. The debugger consumes all the
executable file types produced by the linker (.dxe, .sm, .ovl). To simulate
IO, the debugger also consumes the assembler data file format (.dat) and
the loadable file formats (.ldr).
The standard hexadecimal format for a SPORT data file is one integer
value per line. Hexadecimal numbers do not require a 0x prefix. A value
can have any number of digits but is read into the SPORT register as
follows.
The hexadecimal number is converted to binary.
The number of binary bits read in matches the word size set for the
SPORT register and starts reading from the LSB. The SPORT register
then zero-fills bits shorter than the word size or conversely truncates
bits beyond the word size on the MSB end.
In the following example (Table A-9), a SPORT register is set for 20-bit
words, and the data file contains hexadecimal numbers. The simulator
converts the hex numbers to binary and then fills/truncates to match the
SPORT word size. The A5A5 is filled and 123456 is truncated.
A-16 VisualDSP++ 4.5 Loader and Utilities Manual