Updates to HuCC's expression handling that make the code faster, but not smaller. #47
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current short string pointer and the work-in-progress far string pointer.
…t they are symbols and not labels. Defer the address addition for static local and norecursive arrays so that they can take advantage of the same peephole optimization rules as global arrays. Display static and norecursive function local variable names as comments in the listing file so that it is easier to see what the generated code is doing. Change how the expression handler decides if an lvalue is unsigned to hopefully make it a bit less error-prone. Add some of SmallC-85's comments to expr.c to try to make the source code a bit more readable.
that they're cleaner to optimize.
…timizer so that they can be recursively calculated and resolved into integers. Reorganize the optimizer so that math with an integer is optimized early on and doesn't get in the way of more-complex later optimizations. Change HuCC's "jsr smul/sdiv" into i-codes to remove the I_JSR and T_LIB string comparisons that are a PITA to deal with in the optimizer, and add new multiply and divide by an integer i-codes. Add some rules to convert signed multiply and divide into unsigned if possible, and then to convert unsigned power-of-two divide or mod into LSR or AND. Allow the instruction rescheduler to reorder multiplies as they're commutative.
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