VisualDSP++ 4.5 Loader and Utilities Manual - Analog Devices

Loader for ADSP-2126x/2136x/2137x SHARC Processors
in FINAL_INIT (“DO RESET UNTIL EQ;”). When a loop condition
is achieved within the last three instructions of a loop,
the processor branches to the top-of-loop address (PCSTK)
one final time.
5) We manually changed this top-of-loop address 0x80004, and so
to conclude the kernel, the processor executes the instruction
at 0x80004 *again*.
6) There’s a new instruction at 0x80004: “PM(0,I8)=PX;”. This
initializes the user-intended instruction at 0x80030 (the vector
for the High-Priority-SPI interrupt).
At this point, the kernel is finished, and execution continues
at 0x80005, with the only trace as if nothing happened! */
/* ========================================================== */
ADSP-2136x/2137x Multi-Application (Multi-DXE)
Management
Up to eight ADSP-21367/21368/21389 and ADSP-2137x processors can
be clustered together and supported by the VisualDSP++ loader utility. In
PROM boot mode, all of the processors can boot from the same PROM.
The loader utility assigns an input executable (.dxe) file to a processor ID
or to a number of processor IDs, provided a corresponding loader option
is selected on the property page or on the command line. The loader utility
inserts the ID into the output boot stream using the multiprocessor tag
MULTI_PROC (see Table 5-12). The loader utility also inserts the offset (the
32-bit word count of the boot stream built from the input executable
(.dxe) file) into the boot stream. The MULTI_PROC tag enables the boot kernel
to identify each section of the boot stream with the executable (.dxe)
file from which that section was built. The Figure 5-3 shows the multiprocessor
boot stream structure.
VisualDSP++ 4.5 Loader and Utilities Manual 5-33