Analog Devices VISUALDSP++ 3.5 Manual page 404

C Run-Time Library Reference
Example
#include <sysreg.h>
main(){
int value = sysreg_read(sysreg_IMASK);
}
See Also
disable_interrupts, enable_interrupts, io_space_read, io_space_write,
mode_change,
3-150
sysreg_write
VisualDSP++ 3.5 C/C++ Compiler and Library Manual
for ADSP-219x DSPs