>-----BEGIN PGP SIGNED MESSAGE-----
>
>Is there a "standard" way to embed PIC16C84-specific info
>(fuses, ID, data-EEPROM) into a "HEX" (or any other) file?

I use MPASM assembly directive, such as "__CONFIG       _CP_OFF & _PWRTE_ON &
_WDT_OFF & _XT_OSC"

>I think Parallax's docs refer to "IHEX8M"...
>Where do I get details on this file format?

The MPASM User's Guide has it in Appendix A. Probably available from Web site.