I want to implement a set of API functions in a separately compiled HEX, just like SoftDevice. It means that I need to use the SVC mechanism, just like what SoftDevice does. However, SoftDevice (S110) already implements a SVC_Handler. How can I implement my own application-level SVC_Handler, which can cooperate with the one in SoftDevice? Thanks.
(From the SoftDevice S110 Specification, I can only find that the SVC numbers reserved for our application are 0x00-0x0F. However, the specification doesn't mention how to use those reserved SVC numbers.)