It does, it will output the ASCII form of tr0. From "spectre -h" :
* -format fmt Outputs raw data in the format `fmt'. You may use `-f'
as an abbreviation of `-format'.Possible values for `fmt' are
nutbin, nutascii, wsfbin, wsfascii, psfbin, psfascii,
psfbinf, psfxl, awb, sst2, fsdb, wdf, uwi, and tr0ascii.
So you can pick "-f tr0ascii"
Andrew.