3 ms·

Let's put your claim that Objective-S can be used to implement different architectural styles to the test: implement Prolog or some other logic programming lang

Let's put your claim that Objective-S can be used to implement different architectural styles to the test: implement Prolog or some other logic programming language as an architecture! I think the other architectures you've listed there aren't different enough from the typical call/return style of algorithm-centered languages, but logic programming certainly is.

User23 4y ago
Incidentally implementing prolog in Common Lisp is, while not trivial, quite natural[1]. [1] https://github.com/norvig/paip-lisp/blob/main/lisp/prolog.lisp https://github.com/norvig/paip-lisp/blob/main/lisp/prolog.li...
User23 4y ago
Forth is another good example. There’s no call and return, but it can be used to implement any algorithm.
- mpweiher 4y ago
  > Forth is another good example. There’s no call and return Huh? Could have fooled...well, everyone, including Chuck Moore. Emphasis mine. https://web.archive.org/web/20060101073958/http://www.colorforth.com/cf.html https://web.archive.org/web/20060101073958/http://www.colorf... "The Data stack holds parameters for and results of subroutine calls. This distinction between control and data minimizes the cost of subroutine calls. https://en.wikipedia.org/wiki/Forth_(programming_language) https://en.wikipedia.org/wiki/Forth_(programming_language) "Forth is a procedural, stack-oriented programming language..." "...where the user interacts via subroutines called words. " "First a number (1 or 8) is pushed onto the stack, FLOOR5 is called,..." "This is the same as what a processor's call/return instructions do." https://www.forth.com/resources/forth-programming-language/ https://www.forth.com/resources/forth-programming-language/ "The benefit of having a stack reserved for return addresses was that the other stack could be used freely for parameter passing, without having to be “balanced” before and after calls" ...

User23 4y ago

Incidentally implementing prolog in Common Lisp is, while not trivial, quite natural[1]. [1] https://github.com/norvig/paip-lisp/blob/main/lisp/prolog.lisp https://github.com/norvig/paip-lisp/blob/main/lisp/prolog.li...

User23 4y ago

Forth is another good example. There’s no call and return, but it can be used to implement any algorithm.

mpweiher 4y ago
> Forth is another good example. There’s no call and return Huh? Could have fooled...well, everyone, including Chuck Moore. Emphasis mine. https://web.archive.org/web/20060101073958/http://www.colorforth.com/cf.html https://web.archive.org/web/20060101073958/http://www.colorf... "The Data stack holds parameters for and results of subroutine calls. This distinction between control and data minimizes the cost of subroutine calls. https://en.wikipedia.org/wiki/Forth_(programming_language) https://en.wikipedia.org/wiki/Forth_(programming_language) "Forth is a procedural, stack-oriented programming language..." "...where the user interacts via subroutines called words. " "First a number (1 or 8) is pushed onto the stack, FLOOR5 is called,..." "This is the same as what a processor's call/return instructions do." https://www.forth.com/resources/forth-programming-language/ https://www.forth.com/resources/forth-programming-language/ "The benefit of having a stack reserved for return addresses was that the other stack could be used freely for parameter passing, without having to be “balanced” before and after calls" ...