The -Ri command line option sets the name of the section that the compiler emits interrupt service routine (ISR) code into. If no other options are given, the default name for the section is ISR.

You can control the name of the code section used by the compiler within a source file using the #pragma isrseg or by using CrossStudio to set the ISR Section Name property of the file or project.

Project property

Section Options > ISR Section Name