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Re:Show HN: R8 Processor by amenghra on Tuesday May 02, 2017 @06:07PM (#14251064)
Get an icestick (fpga on a USB stick). You can use an entire open source tool chain (thanks to great reverse engineering work) although I would use the default tools even if it implies running Windows in a VM.

Some other boards a pretty small. I have a Xilinx Spartan; really easy to carry around.

Re:Show HN: R8 Processor by jfktrey on Tuesday May 02, 2017 @07:03PM (#14251489)
Second the default tools. The open source tools are really cool, but especially if you're just starting out, the proprietary tools are much gentler in helping you debug your own mistakes.
Re:Show HN: R8 Processor by vanjoe on Tuesday May 02, 2017 @08:56PM (#14252186)
I wouldn't say lattice tools are super helpful, I've spent more hours cursing icecube2 than I care to recall.