Smalltalk YX -- About the project

Smalltalk YX -- About the project: "Smalltalk YX is an open source programming language. It's an implementation of the Smalltalk-80 standard.
Smalltalk is a dynamic object-oriented programming language. With the name Smalltalk we usually refer to the language standard (syntax, semantics, philosophy, etc.). You can think of Smalltalk-80 like the C99 standard.
Syx is one of the implementations of this great environment."