co2

>One somewhat radical thing that LLVM-MOS does is to analyze the program's call graph, and for functions that are not used recursively it will assign parameters and local variables to zero page instead, both for speed of access and to avoid need for a stack frame. Even though this violates the WYSIWYG mental model, this is a nice abstraction of what the assembly language programmer would have done themself. very nice, it sounds similar to the 'compiled stack' concept. I've seen that here in the co2 language for the 6502 "Variables declared as subroutine parameters or by using let are statically allocated using a "compiled stack", calculated by analyzing the program's entire call graph. This means scopes will not use memory locations used by any inner scopes, but are free to use them from sibling scopes. This ensures efficient variables lo

https://github.com/dustmop/co2/blob/master/compile.scm#L3689 Indeed, it's almost trivial.