We released a QPU assembler at https://github.com/hermanhermitage/videocoreiv-qpu/blob/mast... a couple of weeks ago. And a reference javascript VPU assembler is due very soon (mirroring the path taken with the QPU assembler).
Because our own work was independent and pre-dates this information by a couple of years (in the case of the VPU), we have some alignment work to do in terms of mnemonics.
This release adds a lot of knowledge to the table - extending our understanding beyond the core instruction sets (which were already well reverse engineered) into a deeper understanding of the various hardware registers.