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From yesterday I've made [tt04-reciprocal] and I'll copy in the lzc and reciprocal modules and see if we can harden them. I'll use the same paths as per [tt04-raybox-zero] in case they have anything to do with the yosys-abc bug I'm chasing.
I'll need a contrived wrapper because we don't have enough IOs in TT04 to fully exercise the reciprocal module.
Initial commit is here but I think I can do better, e.g. by loading values into registers and then streaming out. Make it SPI-based, even if bite-wide rather than bit-wide?
I then had to do a minor fix followed by another in order for it to start building.
Let's see how this goes...