Ikarus (Scheme implementation)
|Paradigms||Multi-paradigm: functional, imperative, meta|
|Designed by||Abdulaziz Ghuloum|
|First appeared||October 31, 2007|
0.0.3 / February 2, 2008
0.0.3 / February 2, 2008
|Typing discipline||Dynamic, latent, strong|
|Implementation language||Scheme, C|
|OS||Cross-platform: macOS, Linux, FreeBSD, NetBSD, Windows XP|
Ikarus Scheme is a free software optimizing incremental compiler for R6RS Scheme that compiles directly to the x86 IA-32 architecture. Ikarus is the first public implementation of a large part of the R6RS Scheme standard. Version 0.0.3 has 94% of the total R6RS forms and procedures. Development stopped in 2008.
Some of the ideas behind the design of Ikarus Scheme are detailed in "An Incremental Approach to Compiler Construction" by the developer. Ikarus is self-hosting with most of the compiler and primitives written in Scheme and only a few parts of the runtime system written in C. Also, rather than using an external intermediate language like C, LLVM, or C--, it compiles directly to machine code to better exploit the underlying machine architecture.
Ikarus uses the portable R6RS library and syntax-case system which is also developed by Abdulaziz Ghuloum and is described in a paper, "Implicit phasing for R6RS libraries". Finally, the paper "Generation-Friendly Eq Hash Tables" covers the hash table implementation in Ikarus.
Ikarus runs on x86 but requires SSE2 support to handle floating-point arithmetic (FP) computations so it will not produce code for Intel chips earlier than Pentium 4 or for Advanced Micro Devices (AMD) chips before Athlon 64. Release 0.0.3 has been tested and runs on:
- macOS, version 10.4 and 10.5
- Linux, 2.6.18; Debian, Fedora, Gentoo, and Ubuntu
- FreeBSD, version 6.2
- NetBSD, version 3.1
- Windows XP, using Cygwin 1.5.24
- Ghuloum, Abdulaziz (2007-10-31). "Initial release of Ikarus – the compiler of choice for R6RS hackers". Newsgroup: comp.lang.scheme. Usenet: firstname.lastname@example.org. Retrieved 2007-11-28.
- Ghuloum, Abdulaziz (2008-02-02). "Ikarus Scheme: History". Ikarus Scheme. Retrieved 2019-04-04.
- Ghuloum, Abdulaziz (September 17, 2006). "An Incremental Approach to Compiler Construction" (PDF). Scheme and Functional Programming, 2006. Portland, Oregon. pp. 27–37. Retrieved 2007-11-28.
- Ghuloum, Abdulaziz; Dybvig, R. Kent (2007). "Implicit phasing for R6RS libraries". Proc. of the 2007 ACM SIGPLAN International Conference on Functional Programming. Freiburg, Germany. pp. 303–314. Retrieved 2007-12-01.
- Ghuloum, Abdulaziz; Dybvig, R. Kent (September 30, 2007). "Generation-Friendly Eq Hash Tables" (PDF). Proc. of the 2007 Workshop on Scheme and Functional Programming. Freiburg, Germany. pp. 27–36. Retrieved 2007-12-01.
- Official website
- Ikarus Scheme development site
- R6RS library and syntax-case system home page
- R6RS library and syntax-case system development site
- Ikarus Scheme User's Guide
- The R6RS Standard
- formerly supported by The Computer Language Benchmarks Game: entry for Ikarus Scheme (Intel Pentium 4)
- Benchmarks comparing Ikarus to other R5RS scheme implementations (These results are for 0.0.2 and haven't been updated for 0.0.3.)
- Benchmarks comparing Ikarus to other R6RS scheme implementations (These results are for 0.0.2 and haven't been updated for 0.0.3.)