Extract minimum number of supported OptoHybrids from HW *or* address table

[jsturdy]

Brief summary of issue

When doing quick tests, to save time, a stripped down address table is often used that is different from the generated FW. In this case, doing something a la:

nOH = readRegister(amc,"GEM_AMC.GEM_SYSTEM.CONFIG.NUM_OF_OH")

will result in looping over, e.g., nOH=12 > generate_size="2" nodes.
This will result in errors on read.

A mechanism that could extract the minimum of either the FW or the XML file would be useful to mitigate such issues.

Types of issue

• Feasibility investigation

Expected Behavior

If I modify the xml file to change the generate_size from 12 to 2 for quick testing, I would like to avoid having tools throw errors on missing addresses

Possible Solution

For discussion..., but encoding the nOH in an easily extractable parameter in the address table seems simplest.

[mexanick]

well, generate_size field can easily be extracted, however I don't see a really good reason to do so. I would rather advocate for a correct usage (sync-ed) of address table and FW. However if you have a strong use case, I will implement this through node attribute.