KrNews #12 01 апреля 2000

Софт     IS-DOS

IS-DOS - Spectrum & OS

     Spectrum 'OS



       OS is bolshoy
striped flies.

 VTS'Y2K


   Um, but People says nothing. Here are just a
Alex_Naz about programming under isdosom asked. Everyone else 
either silent, or simply to criticize it without offering any 
alternative to replace because there is no alternative. I 
myself know of shortcomings isdosa, and most important -

lack of control circuit of the upper memory, and no one will 
argue with that. Although purely for data blocks (as isdos 
text-oriented), such a mechanism a - ram-disk. Another 
thing-code. But because you can and then find a way ... But

many amenities, how much easier to program ...

   On the other hand, suggests
type "all nafig do not need all these
Axes, super-duper glands and vaasche do me a makeshift 
Pentagon, I will Sceners ... "<rem: this is a collective obraz, 
do not think anyone over ;)> I do not like emulyatorschikov 
their same related to the Spectrum ... Spectrum yet

the computer, not a copy of the museum demomeykinga. On this 
occasion, we must write separate article, but for now We turn 
the axle. 


   The problem is that nobody wants to learn to program in the 
axis. I hasten to disappoint you, will have to learn

for any system. And what it is primitive
and less thought out, the less learning.
Take the same CP / M. This BIOS, conjugating
ourselves with the equipment (in isdose this level drivers 
-t.e. even not the kernel) and some amount of code (with

possibility of its use, of coz -
that's all the same axis) for the organization
communication with users (command line) and disk (file system). 
Everything Else "Nakrucheno top, type libraries

or the head of the program (starting
overlays).

   In isdose all complicated. It is rather tricky distribution 
system 48-second memory, modular kernel, channels, lots of 
different kinds of descriptors and vectors, which can tune in 
to that anytime and anywhere, the cache (which at

You can shrink up to 1.5kb). Here
do not need these libraries, etc. Everything is
to restart. But to understand it
complicated. However, the result can be considerably easier to 
write different kinds of programs. There is actually no longer 
the need to write interface - You can take everything ready. In 
addition, opened opportunities for improvement

system, for example, wrap your own interface for an additional
level of the kernel (and yuzanie him on RST # 10).

   Usually first software written with the use of the OS. It 
turns out not very nice, something where retarding, but in this 
case is an important idea and its implementation, as well as 
versatility (Provided by means of the OS). Then,

if necessary, he had already undermined,
somewhere to bypass the operating system, direct programming of 
iron. Theoretically, this is bad, practically it is 
beautiful;), however, where not undertake or pop-Z180 on some 
perverted the screen will work exactly the one the old and the 
brake version ;-) ...


   In trdos-prog recent years the opposite is true: first, as 
the Khoi-releases idea, hung with a mountain of code: interface

disk driver, etc, and then this
the idea of ​​developing a snail's pace.

   Ie do not be afraid to do anything
in the OS. Worse than trdose, still have
will not;).


   Or here's an example, you want poyuzat
turbozagruzchik. So you need it to sculpt each prog. And you 
can isdose (Strange that no one has done) to rewrite the 
driver-flop, and everything will be loaded on to the Turbo. 


   Or is this MSDOS. You are all aware,
that found in the base are the ones
programmulki stubby, type cd, dir,
mem and so on, and just because you were taught
(Right now is no longer taught) "commands msdos" in the
school (or elsewhere). Already here vaasche no service ...


   At I need it. And the fact that bend with
basic kit, who very much want, and you can re-write. And all
immediately become live well. Or, you can
Wind levels and Shell (drawing windows and
File Panel) to remove, and then their
put;) only need to know how, and
it needs to study the system ...

    And not done, it's probably more because it does not need 
anyone nafig-in principle and the fact that there is, is 
tolerated. Ie isdos predisposes do not "sharpened shovels," and 
specifically "vskopkoy" ie business.



   If someone still hurts
Ping, I advise you to withdraw from the parking brake
and make a RAM-disk. Even at 128k there
You can upihat much. And the biggest
wheel-set screw. Scheme such as in
8'om ZX-Format'e already been -6 m / s normal rassypuhi. I have 
now, even without ramdisk everything is fine. And with a 
special firmware ROM (with Kay), all Axis loaded for the 
half-second ;-) (it's not you Capes-dos, and not vyndovoz)



   Oh, and many of the ideas implemented by isdosom (though not 
very nice), has not yet been implemented (or implemented only 
recently) under trdosom. K example, a text editor. Since it can

contend only ZX-ASM v3.10, which
built on the same principles as overlays, and
his only plus improved user interface (1999, after all), and
cons maybe more will be, and they are connected to
most of it with trdosom (not an editor). And how much is not 
yet implemented ... Only the macros, which are ... Moreover, 
the creation of ZX-ASM has been spent on the order of more 
power than the creation of is-edit. And to me personally on the 
screw is much more convenient juzat is-edit. Because Text 
mulberries meter 4 already is-it-all materials to KrNews, 
ZXHard and many others 

   Or, for example, the viewer. Many of his
function has not yet been replicated in any trdosnom.

Viper> clearly wrong


   This built-in tuner HELP colors, scroller and automatic modes
42/64 cpl, mode of folding lines,
SEARCH model back and forth (very useful feature), the 
transition to the line number, work simultaneously with two 
files, view multiple selected files,

prompt treatment to the panel to load the second file, the work 
at the same time in Two windows (the division of vertical or

horizontally, or switching between
two screens), search on multiple selected file. And with all 
that he occupies a total of 17 sectors in nepakovannom form 
(plus a 4-tuner). And certainly write it was much easier than, 
For example, the same BestView ... 

   Ie these ideas have appeared long ago, and they
were fairly easy to implement. In
trdose same interface so tired of,
for the rest your hands do not reach.


   Or maybe just a mood
people-something pousovershenstvovat,
Never mind that no one needs ... Disfigure comp worthless 
regimes make a dozen absolutely equivalent prog, etc. But will 
what talk, argue, and no matter what

In principle, it is all Labuda, FLAME.


   "After so much effort wasted,
word negotiation, and sense-what has changed? "(c) Novella / 
Adventurer'10. 



   Could this be one of the causes of the crisis
Spectrum software?



   ps: Incidentally, the description of restarts with
More examples can be found in electronic
ZX-room Revue 7-10/97.