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zabzonk 4 days ago

> would return 7

more pedantically, it would push 7 onto the stack

dbcurtis 4 days ago | parent [-]

even more pedantically, would remove 3 and 4 from the stack before pushing 7

DonHopkins 4 days ago | parent [-]

Even oddly more pedantically, that's the operand stack, not to be confused with the separate return stack. >R and R> move values between the two stacks.

On the other hand, PostScript also has a dictionary stack, which you can use to implement a Smalltalk-like object oriented programming system. And its data types and executable code are basically polymorphic homoiconic JSON (like Lisp), not raw untyped bytes like FORTH.

https://news.ycombinator.com/item?id=22456471

https://news.ycombinator.com/item?id=47812317