[Flashforth-devel] Strange behavior DO ... LOOP

[Oleg V. <mer...@gm...>]

Hello, Mikael Nordman.

I recently started more closely studying the FORTH language with which I
met Even in my childhood when the first 8-bit computers appeared. Now
when Microcontrollers
have become more powerful than the first 8-bit computers FORTH Starting to
gain momentum and I found your compiler which I really liked.
I read various books on the FORTH language and try examples and tasks from
books Execute on your version of FlashFORTH. There are many examples and
tasks where The base statement of a cycle in language FORTH is used is DO
... LOOP, But FlashFORTH does not have such an operator, but I found the
"avr / forth / doloop.txt" file which adds the possibility of using the DO
... LOOP operator in FlashFORTH.
"doloop.txt" is perfectly compiled without errors, but when trying to use In
their definitions of op. DO's words, for example

: do_test cr 10 0 do i. cr loop;

when you try to execute do_test hangs tightly. And I tried it On different
boards arduino UNO, arduino MEGA and just on Atmega128, the result the
same. But I found the old version of FlashFORTH on 06.07.2015 and so It all
works fine! Therefore, I have a question for you as a developer Is there
something I'm doing wrong or is it some kind of bug in new versions of
FlashFORTH?

I also have this question, as far as I understand FlashFORTH can address A
maximum of 64Kb of Flash memory because the size of cell = 16 bit and the
operation Read and Write will only work within the low 64KB Flash, ie There
is no sense in using microcontrollers with Flash memory > 64kb such as
Atmega128,
Atmega2560 or it is possible to access Flash memory > 64kb for example for
storing text strings of the menu or other similar information?

P.S. Sorry for my bad English.

All the best,
Oleg.