Analog Devices VisualDSP++ 3.5 Manual page 238

Advanced LDF Commands
OVERLAY_INPUT
{fft_one.ovl}
OVERLAY_INPUT
{fft_two.ovl}
OVERLAY_INPUT
{fft_three.ovl}
OVERLAY_INPUT
{fft_last.ovl}
Figure 5-8. Example of Overlays – Not Grouped
OVERLAY_INPUT {
ALGORITHM
OVERLAY_OUTPUT ( fft_one.ovl)
INPUT_SECTIONS ( Fft_1st.doj(program) ) } >ovl_code
OVERLAY_INPUT {
ALGORITHM
OVERLAY_OUTPUT ( fft_two.ovl)
INPUT_SECTIONS ( Fft_2nd.doj(program) ) } >ovl_code
OVERLAY_INPUT {
ALGORITHM
OVERLAY_OUTPUT ( fft_three.ovl)
INPUT_SECTIONS ( Fft_3rd.doj(program) ) } >ovl_code
OVERLAY_INPUT {
ALGORITHM
OVERLAY_OUTPUT ( fft_last.ovl)
INPUT_SECTIONS ( Fft_last.doj(program) ) } >ovl_code
5-32
fft_one.ovl
Overlay
fft_two.ovl
Overlay
fft_three.ovl
Overlay
fft_last.ovl
Overlay
// Overlays to live in section ovl_code
( ALL_FIT )
( ALL_FIT )
( ALL_FIT )
( ALL_FIT )
VisualDSP++ 3.5 Linker and Utilities Manual
Main: call
call
Overlay
Manager
Overlay Run-time
Memory
for 16-Bit Processors