This option directs the compiler to generate code for the combined soft-stack memory model. The target MAXQ20 core must support the soft stack model. Note that this is not a switch to enable ‘soft stacks’ on MAXQ20 cores that only feature a limited hardware stack, such as the original MAXQ2000 and MAXQ2010 devices. Newer MAXQ20 devices with the MAXQ20C and MAXQ20S cores require this switch.

It is not possible to set this option on a per-file basis.