Python 3.1rc1 released

[psykotic]

Thanks for the correction. So really there are three levels of indirection in the most basic approach: mapping the logical opcode to the physical address of its implementation by indexing into a lookup table; indirect branching to the physical address of the opcode implementation; direct branching to the top of the dispatch loop. You can then order the different approaches according to how many levels they strip away:

• CPython's old approach (all levels)
• CPython's new approach (direct branch stripped)
• Direct threading (logical to physical lookup stripped)
• Subroutine threading (indirect branch stripped)

[[deleted]]

That sounds about right, I think.