World: r3wp
[Red] Red language group
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Dockimbel 13-Mar-2011 [328] | Anyway, we'll make sure Red runs ok on Syllable, that's the least I could do. ;-) |
Kaj 13-Mar-2011 [329x4] | OK :-) |
The issue R2 currently has with old Linux systems is with floating point. That's in the math library, part of GLibC, not the kernel, so there's no way around it unless you use a completely different implementation | |
I'm not denying the libc interface is problematic on GNU systems, I'm just saying there's probably no alternative with fewer problems :-( | |
The best strategy is to keep the interface as small as possible, like R3 | |
BrianH 14-Mar-2011 [333x2] | That's more of a Red problem though. Red/System doesn't have floating point, just integers. |
But it's always good to look to the future :) | |
Dockimbel 14-Mar-2011 [335x2] | Decimal Floating-Point Math Library: http://software.intel.com/en-us/blogs/2008/03/06/intel-decimal-floating-point-math-library/ That's interesting! |
If the performances are close to classic floating point math operations, that would be a great alternative. | |
Kaj 14-Mar-2011 [337x4] | That is not to be expected, because this seems to be a software implementation |
Decimal math would still be great to have | |
Still, the R2 problem with the math library is probably a fluke that can be prevented | |
On the one side you have a chaotic Linux ecosystem where most developers refuse to care about binary compatibility, on the other hand you have an isolated REBOL cave where Carl refuses to deal with outside complexity. This is a recipe for disaster. There must be some middle ground - as we have proven in Syllable | |
Dockimbel 14-Mar-2011 [341] | I was hoping that such library would use the FPU for low-level maths, but can't find any info about that. |
Kaj 14-Mar-2011 [342x2] | I can't even find the download. Is it BSD? |
Is it planned for the linker to support static libraries? | |
Dockimbel 14-Mar-2011 [344x6] | Static libs: yes, but not in the short-term (not in the next months, unless someone else than me implements it). |
Download: that's strange, there was a download button under the title of the article, I've got it a few of hours ago, checking the licensing terms in the sources archive... | |
Here's the direct download link: ttp://software.intel.com/file/7242 (~27MB) | |
sorry: http://software.intel.com/file/7242 | |
It's 3 clauses BSD. | |
The library seems to be built upon IEEE 754 standard, so should be able to be accelerated by an FPU. Btw, here's the download page: http://software.intel.com/en-us/articles/intel-decimal-floating-point-math-library/ | |
Kaj 14-Mar-2011 [350x3] | Thanks. Sounds good, except for the size |
This IEEE 754R spec is a revision based on IEEE 754, but it seems to me that the decimal implementation in this library is in software, awaiting new FPUs (IBM already has a few (although already is not really a good term for 2011)) | |
Intel means it for compliance ahead of time. I wouldn't expect them to compete with the performance of the future FPUs they want to sell us | |
Dockimbel 14-Mar-2011 [353] | I agree that the library size is too big anyway for a direct inclusion in Red's core. |
Kaj 14-Mar-2011 [354] | An optimising static linker could make it acceptable :-) |
Ladislav 14-Mar-2011 [355] | Hi, I added a Red to the Alternatives section in REBOL Wikipedia page. |
Dockimbel 14-Mar-2011 [356] | Thanks Ladislav. Btw, could you add links for the alternative projects? |
Ladislav 14-Mar-2011 [357] | Sure I could, but they were removed by some "purists" telling, that the Wikipedia was not a link repository, so I am afraid it might be contraproductive. |
BrianH 14-Mar-2011 [358] | So, that Intel library is for implementing Red's equivalent of the money! type? |
Ladislav 14-Mar-2011 [359] | I would prefer to say "Red's analogy to the money! type", I do not think it is exactly equivalent. |
BrianH 14-Mar-2011 [360] | I mean that it uses floating point hardware, but implements decimal math, not floating point math. |
Ladislav 14-Mar-2011 [361] | Yes, that is the "analogy" I mean. |
Dockimbel 14-Mar-2011 [362] | Brian: yes, for financial usage, so might differ a bit from REBOL's money! type. |
BrianH 14-Mar-2011 [363] | Cool either way, for those of us not running on IBM mainframes (which have this standard in hardware) :) |
PeterWood 14-Mar-2011 [364x2] | Doesn't the Intel Library implement the three IEE 754 types - decimal32, decimal64, decimal128 |
Aren't these also supported in recent GCC releases? | |
Kaj 14-Mar-2011 [366x9] | Yes |
I've ported my 0MQ binding to Red | |
I've got the Hello World client/server example working: | |
http://rebol.esperconsultancy.nl/extensions/0MQ/ZeroMQ-binding.reds | |
There's some stuff left to straighten out, but it's painful to develop on WINE, so I'll continue when we can bind libc on Linux | |
Here are the test executables: | |
http://rebol.esperconsultancy.nl/extensions/0MQ/server.exe | |
http://rebol.esperconsultancy.nl/extensions/0MQ/client.exe | |
Once Red is a bit more mature, it will be quite a bit easier to write bindings for Red than for R3 | |
GrahamC 14-Mar-2011 [375] | That's pretty quick .. |
Kaj 14-Mar-2011 [376] | Yes, I just read that running on Linux will be possible in the morning :-) |
GrahamC 14-Mar-2011 [377] | This has got to be the shortest time for a working rebol clone ! |
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