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Ah, so it is. Thanks, SysTom. I'm not quite sure what to do with it, though. I wasn't clear earlier, but I'm using the ModelSim IntelFPGA (freebie) version, so normally all the simulation elements are in the various ModelSim-ASE folders - sometimes difficult to find there too. Perhaps it is time I read through the docs again, I expect there are new things since ModelSim first became the tool to use after Altera dropped its own built-in simulator.
Regards,
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Later:
OK, I needed to add the pre-compiled altera_lnsim folder to my 'do' script. Simulation now runs, thanks.
Previously these folders have descriptive names, e.g. arriav, arriav_hssi etc. 'altera_lnsim' is not so helpful, and Windows search does not find 'generic' in the files in the folder.
Regards,