Since January, Adobe has dropped the “premium features” requirement for Flash apps that use the “domain memory opcodes” (a.k.a. “Alchemy opcodes”) that provide low-level performance-boosting operations that let you deal more-or-less directly with blocks of memory. Then in February we got Flash Player 11.6 along with built-in ASC 2.0 support for this feature. Today’s article shows you how to use these opcodes and takes a first stab at improving performance with them. Are they really all they’re cracked up to be?