Also implement a feature to track leaked heap memory (DEBUG_HEAP).
With this, it is now possible to hold CTRL through the entire Rance II
digest version without crashing.
All array instructions supported by the SDK compiler, anyway. There are
a few instructions that were added in later versions, like A_FIND and
A_REVERSE.
Local pages need to be reference counted like any other page. It is
possible to create references to local variables which escape the extent
of their function call, so using a stack doesn't work.
Caching is implemented for small page sizes to avoid invoking
malloc/free on every function call.
Implement CALLMETHOD, SH_STRUCTREF and PUSHSTRUCTPAGE instructions.
Constructors are a bit tricky since SH_LOCALCREATE has to implicitly
call an arbitrary number of functions before it returns (just changing
the instruction pointer only allows for calling a single function).
To get around this, there is now a vm_call() function which is used to
call a function synchronously, before returning from the current
instruction.
Methods are implemented as functions, except that they get a struct page
as local variable -1.
Destructors are still not implemented.
Nunuhara Cabbage