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