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by int_19h
3476 days ago
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FreeBSD bootloader uses Forth: https://www.freebsd.org/cgi/man.cgi?query=loader&sektion=8 Also, while it's not Forth, it could be argued that the RPL language as used on HP scientific calculators, is a kind of higher-level Forth produced by cross-breeding with Lisp. Indeed, its name, while officially not an acronym, originated as "Reverse Polish Lisp". Its implementation is also kinda awesome, because it has two layers - User RPL, which is more high-level and completely memory-safe, with error checking everywhere, and is exposed directly to calculator users; and System RPL, which basically just compiles the source directly to a bunch of call opcodes (so if you mismatch the stack at any point, it just crashes), and which is used to implement the calculator OS and stock apps, as well as User RPL. http://www.hpmuseum.org/rpl.htm |
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