I'm asking for the ISR name for the comparator interrupt for a dsPIC33F. I've tried _CompInterrupt, _CMInterrupt and _CMPInterrupt. All three bring up warnings about non-existent ISR names. I can't find it anywhere in the datasheets.
Looks like this might be what you want http://www.microchip.com/forums/tm.aspx?m=427159&mpage=1&print=true.
The data sheet should give a table of interrupt vectors. For the dsPIC33FJ06GS101 it's on page 99, and shows the analogue comparator interrupt (CMP1) at Vector Number 26.
Questions about Microchip devices will probably get a better response on the Microchip forums.