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-== Goal
-
-A memory-safe language with a simple translator to x86 that can be feasibly written in x86.
-
-== Definitions of terms
-
-Memory-safe: it should be impossible to:
-  a) create a pointer out of arbitrary data, or
-  b) to access heap memory after it's been freed.
-
-Simple: do all the work in a 2-pass translator:
-  Pass 1: check each instruction's types in isolation.
-  Pass 2: emit code for each instruction in isolation.
-
-== types
-
-int
-char
-(address _ t), t ∋ {stack, heap, global}
-(array _ t), t ∋ {stack, heap, global}
-
-stack addresses can't be copied to heap or global
-heap addresses can't be copied [1]
-global addresses you're free to use anywhere
-
-[1] (address _ heap) can't be copied or stored, can't be part of a type or
-choice. Only thing you can do with it is access it from the register you wrote
-it to. And even that not past a call instruction. Important detail: `free()`
-is a call. So an address to something on the heap can never be invalid if the
-program type-checks.
-
-<reg x> : (address T m) <- advance <reg/mem> : (array T m), <reg offset> : (index T)