I do have a 1 TMS25P32JL complete with a 'panhandle' logo, also 1 Hitachi branded variant - both used/pulled. I do have a programmer somewhere but no eraser (and ~0 chance of finding / figuring out the software / hardware in any case)
PM if useful
BTW 'hexdump' is a pretty ubiquitous linux command (linux-utils package, depending on distro). Re-reading I think it does the opposite of what you wanted.
dc