Decryption of an acronym

I might have guessed some of this - or not - Google is not getting me where I want to be. For me it helps to know the meaning of an acronym to understand what is what - any hints breadcrumbs would be welcome. (This will probably help someone else figure this out as well).


hmid - I think means the ID - thus the pin - of hm ? or not?

Could be that hm stands for HostMot which might have something to do with EMCMOT which probably means Enhanced Machine Controller (from the old project name) MOT - could be short for Motor? The bit that controls the motors for moving joints around? (6 char file names bring me back).. So HostMot might come from the idea of an Ethernet host (for mesa boards) that have to to with controlling motors (or is it motion?)
,.,.,.
I'm also making some notes on file types in Linuxcnc - I have so far:

vhd - vhdl file? from Very High Speed Integrated Circuit Hardware Description Language
xise
ucf
pin
bit - bitfile used by mesaflash

HostMot = Host based motion control

HMID = HostMot ID (references the IDROM in HostMot2 firmware)
Among other things, the IDROM specifies what features are included
in a specific bitfile and the functions of the I/O pins

.pin files are text representations of the IDROM content

The following are Xilinx ISE specific files, not really LinuxCNC related at all

.xise files are Xilinx ISE project files
.ucf files are pin constraint files for ISE
.bit files are binary configuration files for Xilinx FPGAs