2017-05-06 15:46:41 +00:00
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Subject: Mes 0.6 released
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I am pleased to announce the release of Mes 0.6, representing 32
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2017-05-22 21:35:39 +00:00
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commits over 24 days. Mescc now works with vanilla Nyacc 0.78.3
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2017-05-06 15:46:41 +00:00
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(thanks Matt!), Nyacc has been unbundled and Mescc compiles 33/55
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of tinycc test2 tests.
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* About
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Mes aims to create full source bootstrapping for GuixSD: an
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entirely source-based bootstrap path. The target is to [have
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GuixSD] boostrap from a minimal, easily inspectable binary --that
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should be readable as source-- into something close to R6RS
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Scheme.
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It currently consists of a mutual self-hosting [close to Guile-]
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Scheme interpreter prototype in C and a Nyacc-based C compiler in
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[Guile] Scheme.
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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[1], Pre-R6RS portable syntax-case[2] with R7RS ellipsis, Matt
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Wette's Nyacc[3] Guile's PEG[4] --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.mes) that can produce the second initial ELF binary from
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binary from mes.c, in only about 2h30'.
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Mes was inspired by The Maxwell Equations of Software: LISP-1.5[5]
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-- John McCarthy page 13, GNU Guix's[6] source/binary packaging
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transparency and Jeremiah Orians's stage0[7] bootstrap project.
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* Download
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git clone https://gitlab.com/janneke/mes
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2017-05-14 16:09:22 +00:00
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wget https://gitlab.com/janneke/mes/repository/archive.tar.gz?ref=v0.6 -O mes-0.6.tar.gz
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2017-05-06 15:46:41 +00:00
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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 0.6 since 0.5
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** Core
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*** configure, build now supports x86 and development for arm with-courage.
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** Language
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*** Nyacc has been unbundled and is now a dependency.
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*** Mes now supports case-lambda.
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*** Mes reader now supports abbreviated form for return character #\cr.
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*** 1 new function
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string-index.
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** Mescc
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*** Mescc can be used on regular C sources, like tinycc's tests/test2 suite.
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*** make check passes 33/55 of tinycc's test suite etest/test2 tests.
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*** Mescc now recognizes `short' as a type.
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*** Mescc now supports sizeof (<identifier>), sizeof(<expression>).
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*** Mescc now respects enum field initializers and supports enum variables.
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*** Mescc now supports binary constants .
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*** Mescc now supports assignments from ==, != boolean expressions .
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*** Mescc now supports &, ^.
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*** Mescc now supports struct pointers.
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*** Mescc now supports struct definition with immediatete variable declaration.
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*** Mescc now supports calling (returning correctly from) void functions.
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*** Mescc now handles case statements breaks without compound correctly.
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*** Mescc now has better [int/pointer] array support.
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*** Mescc now has better support for simple (non-array-)structs.
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*** Mescc now supports multiple declarations in one statement like: int a,b;
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**** 2 new mlibc functions
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printf, strcpy.
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** Noteworthy bug fixes
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*** Installed mes and mes.repl now also run outside of source tree again.
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Greetings,
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janneke
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[1] https://github.com/schemeway/lalr-scm
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[2] https://www.cs.indiana.edu/chezscheme/syntax-case/old-psyntax.html
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[3] https://www.nongnu.org/nyacc/
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[4] https://www.gnu.org/software/guile/docs/master/guile.html/PEG-Parsing.html
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[5] http://www.softwarepreservation.org/projects/LISP/book/LISP%25201.5%2520Programmers%2520Manual.pdf
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[6] https://www.gnu.org/software/guix/
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[7] https://github.com/oriansj/stage0
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