4 ms·

I admit I don't know the software at that level but I think you would be surprised, it's a web server, db engine, and all sorts of things rolled up into it. Thi

I admit I don't know the software at that level but I think you would be surprised, it's a web server, db engine, and all sorts of things rolled up into it. This is commercial/industrial HVAC, it has more in common with emulating a PLC on PC hardware than say a nest thermostat app. I know it interacts with serial and ethernet ports to speak multiple languages (BACnet/LonWorks/Modbus/hundreds more) and they like to have some close relationship with the hardware, some of which is for licensing... They currently support windows, redhat, and just added Ubuntu. Very much similar version of the software runs on their "native" jace 8000 (PLC lite) hardware, which is ARM under it all so you would think they already have experience in that area.

wtallis 4y ago
> which is ARM under it all so you would think they already have experience in that area. I think you are probably still incorrectly assuming that the CPU architecture and instruction set have any relevance. What you've described sounds like the kind of software that is a portability challenge due to being tied to specific operating systems and their particular APIs for interacting with peripherals. It doesn't sound like anything that should much more than a recompile to target a new CPU architecture, provided that the application has already been ported to the operating system that will be used on that architecture. Certainly nothing you've described would require hand-tuned assembly code to reach adequate performance on a decade-old laptop.