hi there, thanks for replies, i have decided on first my compiler will convert the expression to an RPN (reverse polish notation), this will remove the problem of () and procedence of operators, my only problem now is the best way to output the opcodes, because i will be limited to registers since the programmer could also use them, maybe an option would be to use sse, but tbh i would rather not.
btw the problem with recursion is if the programmer has a very large expression, it would use large stack space, and maybe even an overflow. as for the compiler, i am already far beyond the basics, the compiler already has many features and very usable, you can check it out if you like - http://www.codeziron.com
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