Subject: Mes 0.13 released I am pleased to announce the release of Mes 0.13, representing 45 commits over 3 weeks. MesCC can now compile a functional tcc when running on Mes (in ~1h45') or on Guile (in ~3min). This means that we are getting very close to a full source bootstrap of tcc: it is now built without gcc, glibc or guile; using only MesCC-tools and Mes sources and corresponding ascii/binary seeds. * About Mes[0] aims to help create full source bootstrapping for GuixSD[1] as part of the bootstrappable builds[2] project. It currently consists of a mutual self-hosting Scheme interpreter prototype in C and a Nyacc-based C compiler in Scheme. This C prototype is being simplified to be transpiled by M2-Planet[3]. The Scheme interpreter prototype (mes.c) has a Garbage Collector, a library of loadable Scheme modules-- notably Dominique Boucher's LALR[4], pre-R6RS portable syntax-case[5] with R7RS ellipsis, Matt Wette's Nyacc[6], Guile's PEG[7] --and test suite just barely enough to support a simple REPL (repl.mes) and simple C-compiler MesCC. Mes+MesCC can compile a modified TinyCC[8] that is close to being self-hosting. A GNU Ccc-compiled tcc is known[9] to compile GCC. Mes is inspired by The Maxwell Equations of Software: LISP-1.5[10] -- John McCarthy page 13, GNU Guix's source/binary packaging transparency and Jeremiah Orians's stage0[11] ~300 byte self-hosting hex assembler. * Download git clone https://gitlab.com/janneke/mes wget https://gitlab.com/janneke/mes/-/archive/v0.13/mes-0.13.tar.gz Mes runs from the source tree and can also be built, packaged and installed in Guix[SD] by the usual guix package -f guix.scm * Changes in 0.13 since 0.12 ** Core *** Bootstrapped Mes+MesCC can now compile a patched tcc in ~2h30' (~25,000 LOC). *** MesCC scripts for Mes and Guile are now merged; executable is: `mescc'. *** Mes now uses only one arena for stop-and-copy; doubles available size. *** Mes now has a Guile-like command-line interface (mes.repl has been removed). *** Mes now boots into a full Scheme by default. *** Mes can now be compiled (MES_MINI=1) to boot into a minimal Scheme (~2000 cells). *** Mes now creates less garbage in the reader and in append2, append_reverse, reverse, reverse!, vector-for-each, vector-to-list, vector-map. *** 5 new functions append-reverse, chmod, ioctl, isatty, isspace, last_pair, reverse!. ** Language *** 3 new functions char-whitespace?, chmod, isatty? ** Noteworthy bug fixes *** Two bugs in the jam scraper/garbage collector have been fixed. *** equal2_p now uses tail call elimination. *** Escaped characters in strings are now read and write'd correctly. *** The repl now expands macros again. Greetings, janneke [0] https://gitlab.com/janneke/mes [1] https://www.gnu.org/software/guix [2] http://bootstrappable.org [3] https://github.com/oriansj/m2-planet [4] https://github.com/schemeway/lalr-scm [5] https://www.cs.indiana.edu/chezscheme/syntax-case/old-psyntax.html [6] https://www.nongnu.org/nyacc/ [7] https://www.gnu.org/software/guile/docs/master/guile.html/PEG-Parsing.html [8] https://gitlab.com/janneke/tinycc [9] https://lists.gnu.org/archive/html/tinycc-devel/2017-05/msg00103.html [10] http://www.softwarepreservation.org/projects/LISP/book/LISP%201.5%20Programmers%20Manual.pdf [11] https://github.com/oriansj/stage0