KrNews #10 20 августа 1999

IS-DOS     Софт

IS-DOS - Improvement of IS-DOS'a.

               IS-DOS


(C) VTS'99


  It's time to talk about ISDOS'e. I want to
say that nothing is more promising
we have not. So is it time to start improving already exists, 
albeit not as beautiful appearance, OS'?


  Carping about users. See
how these same nick guns on PCs in Norton, and do not resent ...

  About programming. Here generally
everything is fine. Everything that you see
in the standard system (windows, shaped as letters,
menu with the cursor, the editor of the line, disc surgery, and 
much more ...) programiruyutsya with the level of complexity a 
little harder BASIC, a simple call restarts. Ie system prog to 
write here just fun, and most importantly, on any

clone will normally work.

  A description of all this, too, have, for example, and I have 
too. So if someone seriously interested in, provide for

study.

  That hole Doce you naked Z80 and a bunch of
headaches with compatibility: since
of expandable memory and ending with all sorts of
screws and sidyukami, and who knows what else
in the future ...

  And in the same isdose-Z80 + at least
solution to the problem of compatibility and expansion of iron 
(in general, this problem zhelezyachnikov how best to make 
iron, and not We need your limitations). Bring

a rough example. Assume edak 90% prog
holes under dos yuzali to direct programming VG'shki (for 
example, would not even notorious # 3D13). You know, at that 
time cost controller screws instead of those

six mikruh at Nemo? In a such unit
with their pct that will handle all the work with a screw on 
the one hand, and completely emulates a floppy drive (and its 
low speed), on the other. That's Invites

expand iron TR-DOS.

  I understand a little of memory and transit
extension through the framework of the disc ... But this
done to ensure that at ANY comp
run. System bend, for example,
can be divided into "head" and overlays. Well
and if indeed the system of the throat
become (for game, or any demos ...), it
Well you can always erase (and forcing the user to reboot, if 
not send your creation away) or zakryunchit kudanibud in MB 
memory (if there is a;)). Just do not forget to tune in

on iron and keep all the current settings of the system. And as 
a result of all these Proceedings to obtain a bare PC, as in 
dyrdose, current to within a known configuration. 

  But in general, lately more and more
yuzaetsya Chic for KAY / Scorp / Profi, where
memory under com'y at 16K more. Yes and
then the head is given to circumvent such obstacles. Ie to 
write under isdos, one must at least want it, and otherwise, 
all claims of at least unsubstantiated. 


  A memory expansion using ramdisk - is there a concept of 
virtual memory all of PCs out there, but in more general terms. 
Then is to say on the 48'h clones, the entire upper memory -

virtual, but may be not only a screw, but in general 
anything-even flopovodom, even though the network, even though 
the external ROM / RAM-cartridge ... In short, if you think out 
how it all zayuzat porulezney and do not like to brush off the 
system-all will be ok.



  But one thing I will say for sure: a new iron
will focus on the IS-DOS! Because
it would be much cheaper (there
NOT ONLY because of circuitry, but also support), easier, and 
in general, conceptually healthier. And if the Lord programmers 
will continue to balk, they are liable to leave the iron and 
the user, it bought without software ...



  ps: And what about writing your
own 'bestovyh' os'ey ... Hmmm,
Of course, it can be steeper, but this
require significantly greater expenditures
forces and, most importantly, time-consuming than you expect. 
And no time. OS' should be on the Spectrum already five years 
old! 

  However, I do not deny the need for a good exploration of the 
issue with os'yu. BUT first you need to learn to work with

isdosom, and at least get a feel for where
rulez needed, and where necessary. And it
when everyone will have to work os',
You can do experiments and, in order to
no one hurt. And the experience
in the use of isdosa undoubtedly be useful for future work on 
os'estroeniya. 

isdos/03-05-99/17: 03msk

              06-06-99