The assembler already exists (and is widely used, I think), and the MSPABI specifies how registers and symbols are named at the assembler level. Unfortunately, the MSPABI says that symbols should be like ||this|| when they need to mean "not a register" but our assembler doesn't support that. The mspgcc gcc uses underscores on symbols that are register names, but that just moves the problem. I could also look into using +this to handle some cases, but I'd have to look into how the assembler parses things.
So, it's not that I don't have *a* solution, it's that I have a *couple* of solutions, and I'm not sure which is the one worth persuing just yet. Hence, release notes.
