Re:LLVM Backend for the VideoCore4, Raspberry Pi 2 VPU
by christina_b on Monday May 02, 2016 @03:26PM
(#11614682)
This isn't the same, the document in question relates to the QPU ISA. The VPU ISA hasn't been officially documented but there were many projects that involved reverse engineering it. The VC4 ISA is documented here:
The VPU is basically a general purpose RISC processor with some fancy vector instructions on top. In fact, most of the firmware that runs on it is written in C.
https://github.com/hermanhermitage/videocoreiv
The VPU is basically a general purpose RISC processor with some fancy vector instructions on top. In fact, most of the firmware that runs on it is written in C.