movitz-announce

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6 discussions

[movitz-announce] Macros in Movitz run-time, etc.
by Frode Vatvedt Fjeld 21 Mar '08

21 Mar '08

The following message is a courtesy copy of an article that has been posted to gmane.lisp.movitz.devel as well. I'd just like to mention that I've recently added macros to the movitz run-time (and eval). That is, macros in general should work as you expect at the REPL, and the "macro-function" and "macroexpand" functions should work according to spec. Notable macros that work are do, dotimes, dolist, and destructuring-bind. Notable not-working-yet macros are loop, defclass, and defmethod (i.e. macros that require extensive machinery beyond the syntax layer). The macro-expanders are compiled (at create-image time, like normal functions). This increases the time and output size of create-image somewhat, but the default kernel still clocks in well below the size of a floppy image (1.44 MB). Furthermmore, a number of special operators have been added/improved in the run-time eval. I expect eval to be reasonably complete soonish. Finally, the compiling of macros triggered a few compiler bugs that have now been weeded out (also increasing compiler speed). -- Frode Vatvedt Fjeld

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[movitz-announce] The Bi-Annual Movitz Newsletter
by ffj＠common-lisp.net 15 Mar '07

15 Mar '07

Here's a status report on Movitz: * First of all, activity has picked up a bit the last month or so. So this is a great time to jump on the bandwagon :-) * The Wiki is open for business: http://trac.common-lisp.net/movitz/wiki * The IRC channel is #movitz on irc.freenode.net. * I have more or less migrated my primary development environment to SBCL and SLIME, and so I made the effort to polish the Movitz tools for this setup. See http://trac.common-lisp.net/movitz/wiki/MovitzAndSlime * Some recent developments are: Much better &key argument parsing in (compiled) functions, improved floppy bootloader, VGA graphics (http://ccgi.bealbywm.plus.com/blog/2007/03/07/vga-in-movitz/), and improved keyboard driver by Shawn Betts. Reportedly, Mr. Betts has also successfully implemented preemptive thread switching. * My own development focus currently is to invent a reasonable mechanism for waiting/blocking. The current busy-looping nature of movitz kernels is clearly the biggest wart on the system. * While I have nothing concrete to show for it, I have been thinking that adding/porting Movitz to 64-bit x86 would be very interesting. (Not to mention there is a window of opportunity now while our main competitor Microsoft is struggling to port their legacy systems.) That's it for now, happy hacking to all, -- Frode Vatvedt Fjeld

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[movitz-announce] Bignums have landed..
by Frode Vatvedt Fjeld 19 Jul '04

19 Jul '04

..but we still need to tax to the terminal building. That is, this is to announce that I now consider Movitz to support bignums reasonably well. However, there's bound to be some bignums bugs still, and certainly there are arithmetic operators that don't yet support bignums (not to mention operators that are missing completely). -- Frode Vatvedt Fjeld

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[movitz-announce] Movitz has new 'basic-vectors' data-structure, and improved GC.
by Frode Vatvedt Fjeld 08 Jul '04

08 Jul '04

I've just checked in the last pieces of the migration to a new data-structure for vectors, called "basic-vectors". The most important new feature is that the vector's length is now a fixnum, so that vectors are now restricted to most-positive-fixnum (#x1fffffff) rather than the old limit of #xffff. One practical consequence of this, is that the example GC implementation in los0-gc.lisp is now capable of supporting new-spaces up to size 2 GB. However, I believe the practically useful range is going to be below a few tens of MB. I've set the default size to 2 MB. There have also been numerous bug-fixes. A new los0.img is being uploaded to the clnet web-site. -- Frode Vatvedt Fjeld

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[movitz-announce] CMUCL success
by Frode Vatvedt Fjeld 10 Feb '04

10 Feb '04

I just wanted to report that with the latest CVS checkins I believe Movitz basically runs under CMUCL (at least 18e which is the version I've got). The set of known lisp implementations that works with Movitz is now Allegro, SBCL, and CMUCL. The only implementation I've tried and not gotten to work is CLisp, which core-dumps some time during the build process. Note that there is in principle nothing that binds the Movitz development environment to the x86 platform. Even for testing, bochs can be used on most architectures and operating systems. -- Frode Vatvedt Fjeld

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[movitz-announce] Movitz initial source release
by Frode Vatvedt Fjeld 13 Jan '04

13 Jan '04

Well, this is a combined announcement of the initial release of the Movitz CVS repository and test of the mailing-lists. There are currently three modules in the repository: ia-x86 binary-types movitz The former two are required for building and using the latter. Also, both ia-x86 and binary-types have been somewhat tested for portability, whereas Movitz itself has only ever been used with Allegro CL. I'm hoping that someone with experience with other lisp implementations than Allegro can make movitz runnable under their system, and submit patches to that effect to movitz-devel(a)common-lisp.net. -- Frode Vatvedt Fjeld

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