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hermanhermitage
2014 May 28
2
[LLVMdev] Partially complete LLVM backend for the VideoCore 4
...docs a little while ago; it's the main
processor, which is a VC4 core.
It's a rather elegant thing with two cores, 32 registers, a built-in DSP
and an extremely nice instruction set; reverse engineered docs (based on
publically available information) are available here:
https://github.com/hermanhermitage/videocoreiv
Right now the backend is incomplete but generates decent code for those
things it does --- 32 bit integer and float, most ALU operations, some
memory operations. It doesn't know about instruction displacements yet
so the generated code probably won't assemble, and it doesn'...