[chbot] GCC and recursion

[Mark Atherton]

Yup, for doing real-work ATmega, STM32, or RISC-V has it, no question.

Having said that, newer projects tend to be FPGA based with a small CPU 
orchestrating complex logic.

I built a Threaded Interpretive Language when I was a kid, based on the 
book of the same name (ISBN 978-0070383609). Ran on a 6809 and was 
hugely weird/fascinating at the time (TIL, not 6809).

On 4/14/2024 2:24 PM, Charles Manning wrote:
> I really find computer architecture interesting. But I'm taking the 
> other approach that life is too short so I'm jumping in with the RISC V 
> community.
> 
> Have you looked at some of the tiny Forth machines? eg. Swapforth and J1a.
> 
> 
> On Sun, Apr 14, 2024 at 2:07 PM Mark Atherton <markaren1 at xtra.co.nz 
> <mailto:markaren1 at xtra.co.nz>> wrote:
> 
>     Ha! I have already implemented RPN, and it works fine. This whole
>     project is an experiment; interested to see what how far I can push
>     things before the parser gets ugly.
> 
>     I guess then next step is to write a small compiler running on an x86,
>     generating P-code to be run on a *tiny* interpreter on the machine (and
>     its associated 128 word limit). There is plenty of micro-code space, so
>     might be able to dream up some complex instructions to make the
>     interpreter very small.
> 
>     Oh god, look what you have made me do now... :)
> 
> 
>     On 4/14/2024 12:06 PM, Charles Manning wrote:
>      > There is always an equivalent algorithm using arrays etc to make a
>      > manual stack (ie. looping instead of function calling to get the
>      > "recursion".).
>      >
>      > Sometimes that's all you've got. eg. Fortran 77 etc does not provide
>      > recursion because it is not stack based (like C).
>      >
>      > Function calling recursion is a lot easier and cleaner though.
>      >
>      > Have you considered just saying sod it and using RPN for your
>     assembler?
>      > Well for a first cut anyway.
> 
> 
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