Document fud's fpga Xilinx execution/emulation stage
#1021
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- Now we need `--from xclbin` apparently. - I was using the wrong input file for matching the earlier example commands.
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Relevant to the overall #876 tracker, and more pertinently to #1019 as part of @nathanielnrn's work this summer.
This just adds some basic documentation of fud's
fpgastage, which lets you actually runxclbinfiles, either in emulation or proper FPGA execution. Unfortunately, this requires setting a lot of annoying environment variables before you run fud; #872 should solve this. But for now, we have the bad-but-working way documented.I also added a note to the existing documentation of the
wdbstage that it may not be worth using. But I don't want to delete that yet because it may be our only way to get waveforms for now. (As a side note, it would be really good if we had a way to convert fromwdbwaveform trace files to ordinaryvcdfiles…)