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javascriptnode.jsv8bytecode

What does the Star0 instruction do in V8?

I was analyzing JavaScript bytecode generated with

node --print-bytecode <file>

And I came across this instruction

0xb899c88b0bc @    4 : c4                Star0

So, I was wondering what is the purpose of Star0. I tried searching for some documentation, but I didn't find anything relevant.
I already have experience with assembly languages and Python bytecode, so don't worry about using technical jargon.

Solution

  • It means store accumulator to register r0. Originally it was star r0. Here's the doc with the change: https://docs.google.com/document/d/1g_NExMT78II_KnIYNa9MvyPYIj23qAiFUEsyemY5KRk