New IceStorm tool: icebram can be used to replace BRAM contents in iCE40 bit-streams: https://github.com/cliffordwolf/icestorm/blob/master/icebram/icebram.cc#L73 …
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iCE40 resets all FFs to zero the moment you enter programming mode. However: You can decide not to initialize all brams.
So theoretically you could do "partial reconfig lite" by storing state in the brams you don't initialize when re-configuring.
