F83 was also an IDE for 8-bit computers (with multithreading, reflection, macros, a single-stepping debugger, and virtual memory) but despite the name didn't come out until 01984. (It was a model implementation of the Forth-83 standard, thus the misleading name.)

As wduquette pointed out in the previous thread in https://news.ycombinator.com/item?id=45132286, Apple Pascal was an IDE for Apple's 8-bit machines four years earlier. I would add that the UCSD p-System it was based on was available for other 8-bit machines as well, but I don't know what year. But those were bytecode interpreters and so very slow. F83 was intermediate, using indirect-threaded code.

However, by design it did not support recursion, directly or indirectly: https://atariwiki.org/wiki/Wiki.jsp?page=Action Variables were assigned constant locations, which made things easier for the cpu, but that's a harsh limitation.

It was only available on Atari and for a while you had to have a cartridge to run its programs. For many, these were deal-breakers, as you couldn't release your programs to many.

As always, trade-offs, but pretty big ones.