It is in the final section of the Blue Book [1], where the virtual machine is described in Smalltalk itself. Basically you have tagged integer values and pointe

It is in the final section of the Blue Book [1], where the virtual machine is described in Smalltalk itself. Basically you have tagged integer values and pointers and that's it. The VM describes a bytecode set that involves manipulation of memory structures that are the objects, along with very primitive arithmetic operations on low level integers. [1] http://stephane.ducasse.free.fr/FreeBooks/BlueBook/Bluebook.pdf http://stephane.ducasse.free.fr/FreeBooks/BlueBook/Bluebook....