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  • Re: Release my K&R C compiler along OS and utilities

    From anthk@3:633/280.2 to All on Wed May 21 15:02:35 2025
    On 2025-03-20, Oscar Toledo G <biyubi@gmail.com> wrote:
    On 19 Mar 2025 at 6:22:06 CST, "anthk" <anthk@openbsd.home> wrote:

    On 2025-03-16, Oscar Toledo G <biyubi@gmail.com> wrote:
    Hi all.

    I've released recently the source code to my almost full K&R C compiler (minus
    extern and static) made in 1993-1996.

    It was developed based on Small-C and expanded to K&R per the book.

    The target of this C compiler is a transputer chip. The C compiler runs under
    my own operating system, and you'll find along text editor, assembler,
    assorted utilities, a 3D modeler, and a ported Ray Tracer program.

    For this to work, I've made a transputer emulator that can be compiled in >>> recent macOS (test with Macbook Air M1)

    The full source code is available at https://github.com/nanochess/transputer

    Also three articles about the development are linked there.

    Enjoy it!

    Regards,

    Thanks/Gracias. Altough from you I would expect using something like Minix 3,
    or OpenBSD :D.

    I'm more mainstream these days because I keep distros of IntyBASIC, CVBasic, and CoolCV for Windows, macOS and Linux.

    I use a Macbook Air for development, and VirtualBox for running both Windows and Fedora, so I don't need to use another computer.

    Regards,

    Did you have a look on EForth+Subleq/Muxleq?

    Subleq it's a tiny VM/OISC, albeit slow. Muxleq speed it ups a lot
    by multiplexing instructions. Eforth runs under it.

    https://howerj.github.io/subleq.htm

    https://github.com/howerj/muxleq

    THe repo has both subleq and muxleq.
    If you want a recent muxleq.dec, email me;
    I will submit a ready to run subleq (DEC)
    image.

    If any, edit muxleq.fth, set to 1 the opt.*
    variables related to floats, a better SEE
    and loops (do...loop it's a Forth standard).

    My settings. Sorry for not posting a diff:

    tant opt.multi ( Add in large "pause" primitive )
    1 constant opt.editor ( Add in Text Editor )
    1 constant opt.info ( Add info printing function )
    0 constant opt.generate-c ( Generate C code )
    1 constant opt.better-see ( Replace 'see' with better version )
    1 constant opt.control ( Add in more control structures )
    0 constant opt.allocate ( Add in "allocate"/"free" )
    1 constant opt.float ( Add in floating point code )
    0 constant opt.glossary ( Add in "glossary" word )
    1 constant opt.optimize ( Enable extra optimization )
    1 constant opt.divmod ( Use "opDivMod" primitive )
    0 constant opt.self ( self-interpreter [NOT WORKING] )

    Then:

    ../muxleq ./muxleq.dec < ./muxleq.fth > ./new.dec

    Run:

    ../muxlec ./new.dec

    The interpreter uses a soft float approach. Thus, you
    can use -O3 -ffast-math without troubles, I guess.

    On guides, "Starting Forth" (Web ANS version) and
    Thinking Forth will be more than enough.

    There's Sectorforth, but it's really limited. Contrary
    to SectorLisp from Jart, it doesn't have
    a integer number set save for numbers declared as
    forth words such as powers of 2 and numbers maybe from
    0 to 16.

    If you want to try, you can set a proper SectorForth
    by properly bootstrapping the integer part.

    https://github.com/cesarblum/sectorforth

    Enjoy.

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