408:). If Common Lisp source code has been written with appropriate declarations and is organized with speed in mind the Python compiler generates code that is almost free from overhead compared to code compiled from languages like C++. Some inefficiencies such as function call interfaces and lack of pointer-free arrays of user-defined data types are dictated by the Common Lisp standard and still need to be worked around (e.g. by inlining more and using macros to build constructs that look like user-defined structures but are actually accessing fields in preallocated specialized arrays). The Python compiler also features powerful
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362:, around 1980. In 1985 Rob MacLachlan started re-writing the compiler to what would become the Python compiler and CMUCL was ported to Unix workstations such as the IBM PC RT, MIPS and SPARC. Early CMUCL releases did not support Intel's x86 architecture due to a lack of registers. CMUCL strictly separated type-tagged and immediate data types and the garbage collector would rely on knowing that one half of the CPU registers could only hold tagged types and the other half only untagged types. This did not leave enough registers for a Python backend.
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A machine to interpret compact bytecode (which can be emitted from the compiler). This is rarely used now, but was popular in early CMUCL releases because image sizes were drastically reduced at a time where download bandwidth on the
Internet was
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implementation using some of CMUCL's compiler base) maintenance has been taken over by a group of volunteers. By 1996 this group was making regular releases on its own infrastructure.
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CMUCL features an interpreter that is mainly used for the
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1056:Common Lisp (programming language) software
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465:A graphical source-level debugger using a
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109:Learn how and when to remove this message
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437:on most platforms, and direct access to
404:named "Python" (not to be confused with
350:was a commercial derivative from CMUCL.
319:implementation, originally developed at
1066:Public-domain software with source code
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540:"Home · Wiki · cmucl / cmucl · GitLab"
45:Please improve this article by adding
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344:Steel Bank Common Lisp
34:relies excessively on
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458:An implementation of
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447:Support for
442:system calls
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140:Developer(s)
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983:Kent Pitman
839:Development
676:Scieneer CL
593:Common Lisp
317:Common Lisp
260:Common Lisp
1040:Categories
854:Clozure CL
849:Allegro CL
625:Clozure CL
609:Allegro CL
526:References
360:Spice Lisp
198:Repository
184:2023-05-14
152:Early 1980
69:newspapers
36:references
864:LispWorks
824:OpenMusic
714:Quicklisp
706:Libraries
653:LispWorks
328:Unix-like
767:Weblocks
764:Ironclad
736:Caveman2
697:Software
498:See also
417:Features
402:compiler
376:, later
272:Compiler
245:Platform
235:Several
99:May 2022
911:On Lisp
859:Hemlock
829:StumpWM
819:N-World
757:CL-HTTP
632:(CMUCL)
487:Hemlock
374:FreeBSD
354:History
340:Windows
294:Website
283:License
276:runtime
182: (
157: (
144:Various
83:scholar
1016:(CLOS)
956:People
814:Maxima
804:FriCAS
748:(CLIM)
732:(ASDF)
683:(SBCL)
671:Poplog
616:(ABCL)
215:/cmucl
213:/cmucl
207:gitlab
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1007:Other
942:X3J13
869:SLIME
809:Mirai
752:CLSQL
741:CLiki
649:(GCL)
643:(ECL)
620:CLISP
491:Emacs
489:, an
467:Motif
378:Linux
367:Dylan
332:Linux
312:is a
310:CMUCL
299:cmucl
237:POSIX
122:CMUCL
90:JSTOR
76:books
799:ICAD
784:ACL2
666:Mocl
460:CLOS
451:and
439:Unix
397:low.
391:REPL
334:and
314:free
301:.org
274:and
267:Type
211:.net
159:1980
62:news
761:CLX
336:BSD
38:to
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429:A
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