add a registry global "disable fast register access disable" switch
add a registry RValue per Device ID that maps the "S_MAM" to "which BAR does what"; "M" is mainbar, and prefers memMain unless the above switch disables
add a registry RValue per Device ID that lists offsets to 8254s
add a registry RValue per Device ID that lists offsets to 8255s
add a registry RValue per Device ID about DACs; count, resolution, data alignment

Support CTR8254 functions
Support DIO8255 functions

maps bitIndex to DIO#
maps bitIndex into I/O Groups
maps bitIndex by FET/Relay/I/O/I+O/ etc
maps bitIndex into COSGroups
ADC scripts SetChannel/Gain, StartConversion, StartScan-of-all-channels, ReadData, ReadScanData, WaitForEOC, etc etc