Gary, I counted 100 holes in the code-translation table in the brownish green card (GX20-1850-3 from 76).
So we are looking at 156 instructions- but this is all (priv + floating included) and does not consider two bytes instructions B2 xx (15 already). my green card (59-879-8 or GX20-1703-8 system/360-reference data) had 129 holes and the floating point inst were easy to identify = 50 .... so we are looking at 79 instructions. The privileged were 13 instructions: 66 in the original 360 (well almost- the card documents an MP-box according to IBMers in the computermuseum in Böblingen from 1968) -- Martin Pi_cap_CPU - all you ever need around MWLC/SCRT/CMT in z/VSE more at http://www.picapcpu.de
