Skip to main content

IAR Embedded Workbench for RX 5.20

--save_acc

In this section:
Syntax

--save_acc

Description

Use this option to save and restore the DSP accumulator when the interrupt context switches. If the application uses the DSP, you should consider saving the accumulator when context switching, because the accumulator is destroyed if the interrupt service routine uses a MUL instruction or similar.

Caution

This option is not available in the IDE.