Implement low level VM

[GraphR00t]

High Level VM (implemented)

• Intended to execute business logic
• []Value stack
• Integer overflows are not allowed (checks have a cost)
• All types are supported
• Cannot execute struct methods
• Can have side effects

Low Level VM

• Intended to execute computation logic and utility logic
• Faster than the high level VM
• []byte stack
• Integer overflows are not checked (no performance penalty)
• Only a few types will be supported: int, bool, float, string, struct types, and a few more
• Will be able to execute struct methods
• Will have strictly limited side effects

The low level VM will be invoked by the high level VM.

• Struct methods will always be compiled as low-level bytecode.
• Inox functions whose declaration is prefixed with a specific keyword (lowlevel?) will be considered low level.