Also see: Star Forth Test Suite

Here is a list of each word that comes standard in Star Forth. Included is a short definition as to its general usage.

This adds the two numbers on the top of the stack and pushes the result.

  1 2 + .

This puts a 1 and a 2 on the stack, then adds them and pushes the result. Then, the . (dot) command prints the result, which is 3:

  3 ok

This quits the REPL (the Forth environment).

Usage:

  BYE

This is the “print” command. It prints whatever is on the TOS. For example:

  5 .             ( this prints 5. )
  1 1 + .         ( this prints 2. )

This command duplicates the top item on the stack. So if your stack is:

  1 2 3

then DUP will make it:

  1 2 3 3

This is the print command, like . (dot) but it does not print a space after numbers.

More coming soon!