looking for 2100S microcode programming snippet

I could have sworn I had a 2100A or 2100S microcode programming guide. Can't seem to find it, and I need one tiny bit of info from a chart in it. I have the 21MX microcode programming guide, but this specific info is possibly (likely) different between the two. The 105xxx instruction calls microcode routines, where xxx represents the "address" (bits 8-0, 0-1777). However, I don't think the "address" corresponds directly to a given word address of microcode. At least on the 21MX it doesn't. The 21MX uprog guide gives a table, showing the 105xxx (and for 21MX, 101xxx) addresses and what ranges of microcode addresses they correspond to (and in what module). I need this same info, but for the 2100S or 2100A. Anyone have this info? Thanks in advance!! Jay (crossing his fingers) West