Iron - on turbirovanie Spectrum machines.

<b>Iron</b> - on turbirovanie Spectrum machines.

     Returning to


     printed.


(C) Nemo 1996

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      "... The end of three months
       sample came from Jonathan

       Six students - all

       Six Exiles, dragging
       obtained a new country

       idea: fly for rados
       Tay flight.

          But even easier for them to be

       perform the most complex

       figure, than to understand what

       is hidden

       sense of their exercises. "


     Richard Bach, "Seagull


     Jonathan Livingston. "



   Judging by the reaction, the article on
turbirovanie Spectrum machines do not
gone unnoticed. Reviews a wide spectrum. From the simple-"What 
was that?" to insinuating-caustic "every frog

my swamp praises. "Indeed it is. extoll its
porugivat products and competitors - it is quite normal 
division of labor. For Users this is the only way to get

objective information. Attention
the same should be paid to the extent reasonable and justified
makes the case, and whether they are simply unfounded
statements and general comments.

   Retreating somewhat to the side,
I note that the method DMMTS - up
four years of work (the first
Experiments with turbirovanie were still advertising in a book
edited by N. Rodionova "System software for ZX-Spectrum"
(1993), then the results obtained for various reasons no one
arranged). Along the way, to answer
question - why did this brake (ZXFormat N1). The device was 
created for laboratory testing methods and degrees of influence 
on the program turbirovanie compatibility. The journal material

fell almost by mistake, because of prevailing if the confusion.

   However, some readers will frankly admit that
did not understand. The author sees in this a miss. 
Pseudo-scientific exposition of the non-scientific topics 
turned out to be too science-intensive. The author apologizes 
for any inconvenience. Opportunities outlined below will be 
clearer. 

   Leaving aside rassharkivaniya on diplomatic parquet
get down to business and try to
almost compare the actual
speed.

 1. Take the watch Montana,
put them in the mode and timing
load the program "TESTSC".
 2. Press key "4" (option
RAM SINGLE TEST), while
start the stopwatch.
 3. Measure our run-time option to exit to main menu
turbo and normal mode.
 4. Summing up.



            KAY Scorpion
parameter

         norm turbo norm turbo

time
satisfied-20.1 10.6 20.0 14.0
of, s

method M1 M1 DMMTS APOF.

KT 1.0 1.9 1.0 1.43

FT 3.5 7.0 3.5 7.0

Feff 3.34 6.34 3.34 4.77

Efficiency of pro-0.95 0.91 0.95 0.68
core processor


KT - factor turbirovanie;

FT - F clock;

Feff - F effective.



   For those who do not quite understand the meaning of the 
numbers in the graph K & T, represent them in the form of 
relations: 



      1.9 = 1.47 +1.43


      1.9 = 1.33 * 1.43



   You can, of course, to pretend
that nothing happened, plugging their ears and bury our heads 
in the sand. But it is not so clear is the pump, which are 
presented to those same 43%. Neither give nor take - a scandal 
in the noble family. So, as the article

again about why it happened.

   Now I will explain why other
tests underestimated for KAY
turbirovanie factor. In KAY
all the space port serves neturbirovannym IORQ normal duration. 
In other machines IORQ usually short.

This gives a certain winnings in
speed proportional
frequency of treatment to the ports. Strictly speaking, the 
question was not worth would have a damn if it does not

Bus. To ensure reliable
service bus, you must have
Long IORQ. Hard to imagine that wants to install on
bus by a specific user or
firm. Mindful of the fact that the sandwich always falls butter
down, you can be sure that
will be chosen just deactivate the solution. To cite one
option. Popular 580 chips at a short IORQ begin
engage in sophisticated sabotage, showing that
signs of artificial intelligence. For example, the path of 
conduct port 55 on the bus with a short IORQ prove inscrutable. 

   Further comments I think
unnecessary.


   P.S. Firm Nemo is very flattered by the attention the 
company paid Scorpion Concept KAY-bus, having realized her 
half-substitute in their new boards. If we are not deprived of 
this kind of attention and further, that with pleasure

flatter firm Scorpion, borrowed shadow monitor.
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