Cross-compiled 6502 Forth, using ACME assembler. Non-standard, but matches Forth 2012 when possible.

Usage: ./htfc code.fs ; acme code.asm

The resulting code.prg runs the user-defined word named start.

Since this is a cross-compiled Forth, rather than a true Forth, many important compiling words are missing:

[ ] ' find immediate literal postpone state does> >body evaluate source >in word

: ; :code ;code value hex

1+ 2+ 1- + -

= 0= and

! @ c! c@ fill

drop rot swap over dup 2dup

begin again if else then

• 1234 - decimal
• #1234 - decimal
• $d020 - hexadecimal

• MSB = top of MSB parameter stack
• LSB = top of LSB parameter stack
• W = zero-page work area cell

Code words are defined using ACME assembler:

:code incbg
-   inc $d020
    jmp - ;code