Analog Devices VisualDSP++ 3.5 Manual page 232

Memory Management Using Overlays
Processor P1
Non-Overlay Memory
main()
{
.plt_foo();
}
Figure 5-5. PLITs and Overlay Memory – Inter-Processor Calls
5-26
Processor P2
Non-Overlay Memory
P2_Overlay_Manager()
{
// manager routines
}
/* PLIT & overlay manager
handle calls using the
PLIT to resolve calls
and load overlays as
needed */
.plt_foo:
call P2_Overlay_Manager
Processor P2
Overlay Storage
P2 Overlay
f o o ( ) {. . .}
Processor P2
Overlay Memory
// current overlay
VisualDSP++ 3.5 Linker and Utilities Manual
for 16-Bit Processors