I'd have a look at Freeforth (Anonymous function eval at the shell, threaded subroutines with no swap, MSP433 cross compiler) https://github.com/dan4thewin/Fr

I'd have a look at Freeforth (Anonymous function eval at the shell, threaded subroutines with no swap, MSP433 cross compiler) https://github.com/dan4thewin/FreeForth2/blob/master/ff.asm https://github.com/dan4thewin/FreeForth2/blob/master/ff.asm Sectorforth (Minimal - 7 operators, everything else is in the prelude including IF) https://github.com/cesarblum/sectorforth/blob/master/sectorforth.asm https://github.com/cesarblum/sectorforth/blob/master/sectorf... And Retroforth (Multi platform VM, quotations) https://github.com/crcx/retroforth/tree/master/vm https://github.com/crcx/retroforth/tree/master/vm For larger coding, you may need a GC, Retro has a list class, and Freeforth operates a compacting dictionary which you may be able to modify