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<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
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<title>Ikarus Scheme</title>
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<link href="style.css" rel="stylesheet" type="text/css" />
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<div id="mainPan">
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<div id="topcontactPan">
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</div>
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</div>
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<div id="headerPan">
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<ul class="leftmenu">
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<li class="Solutions">Ikarus</li>
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<li><a href="r6rs-libraries/index.html">psyntax</a></li>
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<!--
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<li><a href="#">Downloads</a></li>
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<li><a href="#">Roadmap</a></li>
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<li><a href="#">Development</a></li>
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<li><a href="#">Changes</a></li>
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<li><a href="#">License</a></li>
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<div id="bodyPan">
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<div id="leftPan">
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<h2>Ikarus</h2>
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<ul>
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<li><a href="#about"><span>About Ikarus</span></a></li>
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<li><a href="#whatsnew"><span>What's New</span></a></li>
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<li><a href="#requirements"><span>Requirements</span></a></li>
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<li><a href="#documentation"><span>Documentation</span></a></li>
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<li><a href="#downloads"><span>Downloads</span></a></li>
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<!-- <li><a href="#roadmap"><span>Roadmap</span></a></li> -->
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<li><a href="#development"><span>Development</span></a></li>
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<li><a href="#history"><span>History</span></a></li>
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<li><a href="#license"><span>License</span></a></li>
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</ul>
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</div>
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<div id="rightPan">
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<h1 id="about">About Ikarus:</h1>
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<p> Ikarus Scheme is a free optimizing incremental native-code compiler
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for Scheme as specified in the <a href="http://www.r6rs.org/">Revised^6
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Report on the Algorithmic Language Scheme</a>.</p>
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<p> Ikarus Scheme is free to download, to distribute, to modify, and to
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redistribute. The complete source is available according to the GNU
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General Public License (GPL3).</p>
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<p> Ikarus Scheme is an optimizing compiler, so your Scheme code will
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run fast without the need to port hot spots to C "for performance".
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With an incremental compiler, you don't need a separate compilation step
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to make your program run fast. The best part is that the compiler
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itself is fast, capable of compiling thousands of lines of code per
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second.</p>
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<p> Finally, Ikarus Scheme is an R6RS compiler. R6RS is the latest
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revision of the Scheme standard. The current release of Ikarus supports
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over 94% of the most important features R6RS, and later releases will
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bring Ikarus closer to full R6RS conformance. R6RS libraries, scripts,
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record types, condition system, exception handling, unicode strings,
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bytevectors, hashtable, and enumerations are among the supported
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features.</p>
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<h1 id="whatsnew">What's new</h1>
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<p>The 0.0.3 release of Ikarus brings the following improvements:</p>
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<ul>
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<li>System usability: When Ikarus encounters a syntactic error (either
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during reading or during macro expansion), error messages now contain
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the file name and character position at which the error occurred.
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Previously, you got a context-free error.</li>
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<li> Better Unicode support: Ikarus's ports are now properly
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classified into either binary or textual ports (previously, they
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supported mixed character and byte input/output). The UTF8 and Latin1
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codecs are now fully supported for both input and output
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directions.</li>
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<li> Better R6RS conformance: The 0.0.3 release adds 28 new R6RS
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primitives, bringing us to 94% of the total R6RS forms and
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procedures.</li>
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</ul>
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<p> Additionally, many existing primitives have been improved (either on
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the performance front or on generating better error messages), along
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with some improvements to the compiler itself. See
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<a href="https://launchpad.net/ikarus/+milestone/0.0.3">https://launchpad.net/ikarus/+milestone/0.0.3</a> for details.</p>
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<p>The 0.0.2 release advances Ikarus in many directions:</p>
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<ul>
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<li>The Ikarus compiler is faster. Just when I thought the bootstrap
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time was acceptable (11 seconds on my MacBook), this new release
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bootstraps in under 7 seconds despite the many added features. The
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"compiler" benchmark (11700 lines) now compiles in 3 seconds down from
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10. The "slatex" benchmark (2350 lines) compiles in about 1/3 of a
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second.</li>
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<li>Not only is the compiler faster, it also generates faster code.
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Floating-point intensive programs now get a huge performance boost
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(the run-time for the "ray", "pnpoly", and "mbrot" benchmarks is
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reduced by about 30%, "fibfp" and "sumfp" run at about 50% of the time
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recorded in 0.0.1).</li>
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<li>An infrastructure for adding user-contributed code has been added.
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In 0.0.2, Ikarus distributes three R6RS libraries from the reference
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implementation of SRFI-41 (streams). More libraries will be added as
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they become available. Thanks to Phil Bewig for taking the initiative
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in producing R6RS SRFIs.</li>
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<li>Ikarus now supports 90% of R6RS, up from 80% in the 0.0.1
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release. Future releases will bring it closer to full R6RS
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conformance.</li>
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<li>Numerous other improvements and bug fixes (thanks to all who
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submitted bug reports and suggestions for improvements). The 0.0.2
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milestone page lists some of the resolved issues. See
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<a href="https://launchpad.net/ikarus/+milestone/0.0.2">https://launchpad.net/ikarus/+milestone/0.0.2</a> for details.</li>
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</ul>
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<h1 id="requirements">System Requirements</h1>
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<h3>Hardware:</h3>
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<p> Ikarus runs on the IA-32 (x86) architecture
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supporting SSE2 extensions. This includes the Athlon 64,
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Sempron 64, and Turion 64 processors from AMD and the Pentium 4, Xeon,
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Celeron, Pentium M, Core, and Core2 processors from Intel. The
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system does not run on Intel Pentium III or earlier
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processors.</p>
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<p> The Ikarus compiler generates SSE2 instructions to handle Scheme's
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IEEE floating point representation (flonums) for inexact
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numbers. Note that Ikarus is a 32-bit system even on 64-bit
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architecutres. On 64-bit Mac OS X or Linux, special compatibility
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packages may need to be installed if they are not installed already.
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Refer to the user's guide for a detailed list of requirements and
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installation instructions.</p>
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<h3> Operating Systems: </h3>
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<p>Ikarus is tested under the following operating systems:</p>
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<ul>
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<li> Mac OS X version 10.4 and 10.5 </li>
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<li> Linux 2.6.18 (Debian, Fedora, Gentoo, and Ubuntu).</li>
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<li> FreeBSD version 6.2 </li>
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<li> NetBSD version 3.1 </li>
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<li> Microsoft Windows XP (using Cygwin 1.5.24).</li>
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</ul>
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<h3> Additional Software: </h3>
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<ul>
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<li>GMP:
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Ikarus uses the GNU Multiple Precision Arithmetic
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Library (GMP) for some bignum arithmetic operations. To build
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Ikarus from scratch, GMP version 4.2 or better must be installed
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along with the required header files. Pre-built GMP packages are
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available for most operating systems. Alternatively, GMP can be
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downloaded from <a href="http://gmplib.org/">http://gmplib.org/</a>.
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</li>
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<li>GCC:
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The GNU C Compiler is required to build the Ikarus
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executable (e.g. the garbage collector, loader, and OS-related
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runtime). GCC versions 4.1 and 4.2 were successfully used to build
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Ikarus. </li>
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</ul>
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<h1 id="documentation">Documentation</h1>
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<h3>Ikarus Scheme User's Guide</h3>
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<p> A preliminary version of the Ikarus Scheme User's Guide is
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available in PDF format. The guide contains: </p>
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<ul>
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<li> Hardware and software requirements </li>
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<li> Installation instructions </li>
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<li> An R6RS crash course </li>
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<li> Description of some of the features provided in
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the <tt>(ikarus)</tt> library</li>
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<li> List of additional user-provided libraries (e.g., SRFIs, GUIs,
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etc.) and where to obtain them from.
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<li> Limitations and missing features </li>
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</ul>
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<p> Download
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<a href="ikarus-scheme-users-guide.pdf">ikarus-scheme-users-guide.pdf</a>
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(253734 bytes) released on February 2, 2008.</p>
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<h3>R6RS (local copy)</h3>
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Local mirror of the R6RS documents in PDF format are available:
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<ul>
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<li><a href="r6rs.pdf">r6rs.pdf</a> (858815 bytes)</li>
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<li><a href="r6rs-lib.pdf">r6rs-lib.pdf</a> (629868 bytes)</li>
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<li><a href="r6rs-rationale.pdf">r6rs-rationale.pdf</a> (284718 bytes)</li>
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<li><a href="r6rs-app.pdf">r6rs-app.pdf</a> (124571 bytes)</li>
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</ul>
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<h1 id="downloads">Downloads</h1>
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<p>
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The official release of Ikarus is for download in
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<tt>.tar.gz</tt> format. The tarball contains the following:
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</p>
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<ul>
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<li> The complete source code of the Ikarus C runtime system
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(garbage collector, boot loader, and foreign procedures).</li>
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<li> The complete source code of the Ikarus Scheme runtime
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system (expander, compiler, assembler, printer, and the rest
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of the R6RS standard libraries), written in R6RS Scheme + Ikarus
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extensions.</li>
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<li> An initial boot image for bootstrapping Ikarus from
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its sources.</li>
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<li> The User's Guide, in PDF and Latex format.</li>
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<li> Additional contributed libraries (SRFIs, etc).</li>
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<li> Code for 60 R6RS benchmarks that we use periodically to monitor
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the progress of Ikarus.</li>
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</ul>
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<p> Download
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<a href="ikarus-0.0.3.tar.gz">ikarus-0.0.3.tar.gz</a>
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(3948264 bytes) released on February 2, 2008.</p>
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<!--
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<h3>Release Candidates for 0.0.3</h3>
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<p> The release of 0.0.3 is pending completion of some missing sections
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from the user's guide. The current release candidate is available for
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download. Please let us know if you have any problems compiling
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it. For more information about this release, please visit the
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<a href="https://launchpad.net/ikarus/+milestone/0.0.3">0.0.3 milestone</a>
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page.</p>
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<p>
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Download the current release candidate
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<a href="ikarus-0.0.3-rc1.tar.gz">ikarus-0.0.3-rc1.tar.gz</a>
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(3940682 bytes) released January 29, 2008.
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</p>
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-->
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<!--
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<p>
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Older release candidates:
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<a href="ikarus-0.0.2-rc1.tar.gz">ikarus-0.0.2-rc1.tar.gz</a>
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(4242461 bytes) released November 23, 2007.
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</p>
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-->
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<h3>Previous Releases </h3>
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<ul>
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<li><a href="ikarus-0.0.2.tar.gz">ikarus-0.0.2.tar.gz</a>
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(3838888 bytes) released on November 29, 2007.</p>
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<li><a href="ikarus-0.0.1.tar.gz">ikarus-0.0.1.tar.gz</a>
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(1776182 bytes) released on October 31, 2007.</li>
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</ul>
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<!-- <h1 id="roadmap">Roadmap</h1> -->
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<h1 id="development">Development</h1>
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<p> Development of Ikarus is continuing. To access the master
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repository, you need the
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<a href="http://bazaar-vcs.org/">Bazaar revision control system</a>.
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</p>
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<p> A development snapshot of the repository can be obtained by performing a
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<i>lightweight checkout</i>. To do so, type:</p>
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<pre>
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$ bzr checkout --lightweight /ikarus.dev
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</pre>
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<p> To retreive a specific revision from the repository
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(say revision 10), do:</p>
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<pre>
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$ bzr checkout --lightweight -r 10 /ikarus.dev
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</pre>
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<p>Note that the full repository is huge (around 560MB) and is
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typically not needed for developing with Ikarus.</p>
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<p> To checkout a copy of the entire repository,
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type the following: </p>
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2022-08-02 07:27:44 -04:00
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<pre>
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$ bzr checkout /ikarus.dev
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</pre>
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Or, from the mirror repository (updated every 5 hours):
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<pre>
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$ bzr checkout http://bazaar.launchpad.net/~aghuloum/ikarus/ikarus.dev
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</pre>
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2022-08-02 07:27:44 -04:00
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<p>To submit bug reports and feature requests, please
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visit: <a href="https://launchpad.net/ikarus/">Launchpad's Ikarus Scheme</a>
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project.</p>
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2022-08-02 07:27:44 -04:00
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<h1 id="history">History</h1>
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<ul>
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<li> Release 0.0.3 announced on February 2, 2008.</p>
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<li> Release 0.0.2 announced on November 29, 2007. </li>
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<li> Initial public release announced on October 31, 2007. </li>
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</ul>
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2022-08-02 07:27:44 -04:00
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<h1 id="license">License</h1>
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<p>The following license applies to all of ikarus and its
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source files unless otherwise stated.</p>
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<pre>
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Ikarus Scheme -- A compiler for R6RS Scheme.
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Copyright (C) 2006,2008 Abdulaziz Ghuloum
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License version 3 as
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published by the Free Software Foundation.
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This program is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <<a class="pre" href="http://www.gnu.org/licenses/">http://www.gnu.org/licenses/</a>>
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</pre>
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</div>
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</div>
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</div>
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<div id="footermainPan">
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<div id="footerPan">
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<ul>
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<li><a href="#about">Ikarus</a> | </li>
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<li><a href="r6rs-libraries/index.html">psyntax</a></li>
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</ul>
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<div id="footerPanhtml"><a href="http://validator.w3.org/check?uri=referer" target="_blank">XHTML</a></div>
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<div id="footerPancss"><a href="http://jigsaw.w3.org/css-validator/check/referer" target="_blank">css</a></div>
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<ul class="templateworld">
|
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|
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<li>original design by: Template World</li>
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</ul>
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</div>
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</div>
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</body>
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2022-08-02 07:44:22 -04:00
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</html>
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