Guido van Rossum <guido@beopen.com>: > But the two-arg opcode format slows down the opcode decoding -- and > that's the most time-critical part of all of ceval.c! I don't see why that has to be so, as long as you don't try to pre-fetch the extra argument before switching on the opcode. Just leave it up to each branch of the switch to fetch another argument if needed. In fact, why not do that for one-argument opcodes as well? If what you say is true, that should make argument decoding even faster than it is now! Greg Ewing, Computer Science Dept, +--------------------------------------+ University of Canterbury, | A citizen of NewZealandCorp, a | Christchurch, New Zealand | wholly-owned subsidiary of USA Inc. | greg@cosc.canterbury.ac.nz +--------------------------------------+
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