EuOS, 3D distance alg's, and fuzzy logic
[EuOS]
Although I think the participants may be way over their heads and will =
abandon the project at the first sign of moths in the tubes, here's my =
1/50 of a dollar, US variety.
Wha'chall seem to be doin' is making a *shell* rather than an OS. Now =
that's not bad, as WinDeath is anything but a good shell and UNIX/LINUX =
already has so many, what's one more. And Euphoria is a great language =
to shell with, because of its size and speed (far superior to the =
aforementioned shells). =20
An OS needs to be developed from the ground up, not the shell down. =
The first step in an OS is the file system. OSes used to be called =
DOSes (on all model of systems), meaning Disk Operating System. =
Currently, there are about 15 file systems in popular use, and countless =
more available. In order to have a DOS worth anything, it need to be =
able to access at least two of these file systems, plus its own unique =
file system if one exists. ($.02=3Dread the Linux DOCS b/4 you begin. =
Very good information about file systems.)
Next, the boot program needs to be called (LILO for Linux, IO.SYS for =
MS-DOS and (?) Win9x). This defines the hardware interface -- i.e. port =
access, bus control, multitasking, memory management, application =
management, video management, etc. Finally it calls the shell. The =
shell can then access all the utilities and applications. Now, the file =
system and boot program must be coded in machine byte code, and written =
to the disk boot sector and disk allocation table (or something like =
that) byte by byte. =20
Using Euphoria's or WinDeath's file calls will only reinforce the =
error-laden Windows file system. So I would strongly recommend sitting =
down with a nice cup of milk and reading the 10,000 or so pages of Linux =
documentation before you begin an OS. That should tell you just about =
all you need to know about building one. Otherwise, an alternative to =
the present shells is a very good idea (and leave the hardware to =
someone who doesn't know what he's doing <glances at Bill>.)
[3D Distance Algorithms]
For whoever is still trying to "ge' i' sor'ed", I have a library of 3D =
graphics routines on my home page. Some of the physics is off (i.e., =
collision and gravity), but it would be easily changable. What is there =
is fully functional rotation/revolution code (demonstrated in the Space =
Race alpha release, also on the home page), with all division by 0 =
errors accounted for, and a perspective check built in. Images are
created using planes. Although the routines are not the fastest in the =
world (it's pure Euphoria), they do provide a good starting place for =
newbies or game hobbyists.
[Fuzzy logic]
Thanks for the long and informative post about fuzzy logic operators =
;). While I expect the ideal is great, reality just doesn't hold up. =
First of all, the laws of probability you studied in high school are =
completely invalid. Mathematically, if you flip a coin 10 times and =
they are all heads, the probability of the next flip being heads is 50%. =
However, we know from experience that the odds of heads coming up are =
closer to 25%, getting lower with each subsequent head. Also, have you =
used a search engine like Excite recently, which employs fuzzy logic? =
The sites marked as 86% are almost never what you want, while the sites =
marked 10% are usually right. What gives there? Nice idea, but =
fundamentally flawed.
Enuf ov mai opinyunz,
In Christ,
Michael J. Sabal
mjs at osa.att.ne.jp
http://home.att.ne.jp/gold/mjs/index.html --> For Euphoria programmers.
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