A good learning resource is Jonesforth (something of a classic), on GitHub here: https://github.com/nornagon/jonesforth/blob/master/jonesforth.S https://github.

A good learning resource is Jonesforth (something of a classic), on GitHub here: https://github.com/nornagon/jonesforth/blob/master/jonesforth.S https://github.com/nornagon/jonesforth/blob/master/jonesfort... I wrote several Forth compilers when learning to code as a teenager, one using the A86 assembler, and two fully bootstrapped-from-assembler ones for 8086 and 386. The 8086 source code is here (I didn't write the assembler myself): https://github.com/benhoyt/third https://github.com/benhoyt/third (KERNEL.F has the assembler parts)