Factor/To do/Performance

• generic math: inline the method body in method combination. we used to do this but it created problems for redefinition; if this can be solved it will eliminate an unnecessary jump in non-optimized execution
• memoized words with no inputs can perform the same as CONSTANT: instead of doing a hashtable lookup

Fixed:

• we can use memsetpattern to initialize strings, arrays on OS X 10.5; actually it will be better to use SSE2 and AltiVec directly instead, more portable... Prunedtree says "can't you write your own optimized memset with intrinsics ? It's not much code and it would be more portable. I can provide the x86 code if you want"
• <range> is slow; / 1 + 0 max >integer no good
• struct returns: compiler needs to know they're byte-arrays so it can optimize complex float boxing
• uninitialized byte arrays
• reallotbytearray() zeroes too much
• finish asm fixnum primitives
• array-capacity?: try not using between?
• linear search of recursive-state
• make M: word hashcode foldable
• we're inserting redundant 0 fixnum>= checks in tuple dispatch engine
• unnecessary 7 slot calls in hashed dispatch
• not and >boolean should be branchless
• case with words has [ t ] [ f ] if awkwardness
• dispatch: small dispatch over hi-tag doesn't need to 8 fixnum-fast
• make sure that 0 slot in dispatch is the known-tag case
• can be faster; if base is a multiple of a power of two, factor out the power of 2 and use a shift, and use binary-reduce to multiple together the rest