[ddingus]

Exactly and why I wrote my comment above.

I would add the computed goto, as in something like:

GOSUB (X * 100)

Is really fast, and using switch, or case, or a set of if, then, else statements can work, but not work well.

There are times when a numeric value works for branching, and having this in BASIC maps directly to assembly language where that sort of thing gets done all the time.

[ikari_pl]

That's not something the Locomotive BASIC of Amstrad or the C64 basic support, seems like at least these two require a literal line number (probably also because how else would `RENUM` work?)

[ddingus]

To emulate that feature in a development tool for the Parallax Propeller (FlexSpin), a sequence of labels was used.

on X goto a, b, c, d, e, 10000, Fred

While not quite the same, the core need is addressed and compiles to a fast jump table.

Interestingly, that tool allows one to build programs in SPIN, assembly, C and BASIC. The developer can mix and match at will and it all compiles into an executable image.

The Propeller Chip, especially Propler 2, is a literal, embedded playground. Lots of fun.