Deja Vu #01
30 июня 1997

Over the hill - The rich also cry?

<b>Over the hill</b> - The rich also cry?
(C) 1996 IMP / DREAMAKERS / RUSH.
On electronic newspapers ECHO # 01.
__________________________________________


                  *


          RICH also cry!

         ----------------------

   All have been aware of the problems arising
due to small differences in domestic
Spectrum of their branded counterparts (in
Basically, this is the problem of synchronization of the 
image). But few people think about what problems our (SNGshnye) 
encoders to create a branded user machines. About I told this 
well-known in our JORDAN edges of EXODUS (Poland). Here I 
translated an excerpt from his letter: 

... We have a lot of problems with all software from the former 
Soviet Union. All this is due to a number of differences 
PENTAGON from the original SPECCY. First, the Pentagon has no 
SLOW RAM (slow memory), and secondly, almost all owners This 
machine uses the port # FD for switching the memory banks 
without having to install the second Bit 'A' register. Of 
course we do all our best and try to adapt

all the programs that we receive from the CIS,
for normal operation at the more popular
in Western Europe models than 2 or 128 +.
Maybe you do not know this, but Spectrum 128 + and 2 are not 
popular since 1988, when the light appeared Model 3, +2 A and

2 B. In these versions of the Spectrum the second bit
MUST be set if you want to switch the bank. This also applies to
Timex'a, SCORPION'a and DIDAKTIK M case. Of course this is 
small change (the second bit) will not harm the normal 
operation of programs to 128 + and +2. Everything will work 
just fine. The next question, as I wrote, it's no SLOW RAM. If 
you want to that your program worked with the full

rate on the original Spectrum, the
put the time-eating code (zhruschy time
code) only in FAST RAM (fast RAM). Too
thing to do and a table of interrupts. And now I write to you 
particularly 'Iron' on some computers that were called by me 
earlier. . 

                                          .

   In +3 / 2 A / 2 V/128 + / 2 clock frequency in
FAST RAM is equal to 3.5469 MHz. In SLOW RAM is
is equal to 2.6602 MHz (nearly 25% slower than FAST). Further, 
in the +3 / +2 A / +2 B FAST RAM on pages 0,1,2,3 and SLOW RAM 
in 4,5,6,7. In 128 + / +2 FAST RAM to the page

0,2,4,6 and SLOW RAM in 1,3,5,7. Unfortunately,
there's more 'surprises' for you. In models 3 / +2 A / +2 In 
all the 'block' mnemonics (LDIR type, etc.) when sending data

between SLOW and FAST memory, with nearly
10% faster than the 128 + and +2. And finally, while ULA chip 
builds the upper, left, right and bottom BORDER, all the 
mnemonics in the SLOW RAM run at full speed.

Everything is a little weird, is not it? And
Finally, I will write to the memory card (I think
All of you know it, and so, but still ...).

                                          .

  # C000-# FFFF banks 0-7 FAST and SLOW.

  # 8000 - # BFFF Bank 2 always FAST.

  # 4000 - # 7FFF Bank 5 is always SLOW.

  # 0000 - # 3FFF ROM 0-3 is always FAST.

                                          .

   Number LDIR in between interruptions
(From a SLOW SLOW RAM):.

                                          .

            y 2 A / +2 B +3 = 3017.

            y +2 / 128 = 2698.

            y 48/TIMEX2128 = 2622.

                                          .

                  .....


   For the 'gifted' I will explain the meaning of
above. Much of what
done at the Pentagon on branded machines, or do not work at all 
or not 'ONE FRAME '(ie does not fit into one interrupt). So 
make your choice, gentlemen programmers - or you dovolstvuetes 
local Backstage, either accept the 'game' and

perhaps soon, and the European scene will be
at your feet! I note that our
(DMS / LAVE / RUSH) demo 'MENTAL
MASTURBATION ',' VIBRATIONS ',' ECSTASY 'already
found its audience (Unfortunately, all
except 'VIBRATIONS' had still been abused, ie, adapted).


   I should note that in recent
Interest in our stage is much
increased. And it's no wonder - where else
as not in the CIS there is a lot of GAME and DEMO makers for 
SPECCY? By the way, sinkleristy 'from behind a hill' is

hoteli to have our games UFO 1,2, DOOM, and
etc. But, unfortunately, our dear
Game-makers nor how many are not interested
in support of the foreign market software and
in vain! ... I understand that the games matter
The situation is not easy, but here as a demo, where 
compatibility problems are most severe, then the output is. And 
it is simple as all brilliant - enough to test

'Iron' and reconfigure the effects of a given type of machine, 
naturally, some things will not look as luxurious as it would 
look like well into the Pentagon. And of course, have to forget 
about MULTICOLOR'e, ​​because set it under the brand name car 
without it, I do not really. 

END ...







Other articles:

Coding - Description of the AntiRST8 (for ZS256).

Coding - IM 2 mode when working in TR-DOS (version Loader'a).

Software - Overview of system programming: ZX-Turbo Assembler v3.10 demo, Flash Music Module Convertor v 1.1, Pro Tracker v2.4, Str Music Decompiles v1.1, Extremes Tracker v 1.3, Softcopy v1.3.

Software - New demoscene: Over The Top, Brain Sugery, Braind Crash, Paraxyzm, Nerve Trackmo, Insane, Trashe, Iris Uldtra demo.

Software - An overview of new gaming software: Mortal Kombat, Magic Stripes, Return to Home 4, Black Raven, Athena, Rescate Atlantida, Skull & Crossbones, Mario Islands demo.

Software - The program of the system description: Professional Xoring System v1.0.

Apperativchik - On the shell of the magazine and managing it.

Apperativchik - From the authors

Hall of Fame - "oVERFILE" threw the whole country. "On the Kemerovo Spectrum scene. A few words on pisi.

Hall of Fame - Pops, Must Die!

Over the hill - The rich also cry?

Over the hill - An interview with John Ritmanom.

drop of solder - Using the CM-6337 printer to the computer Scorpion ZS 256 Turbo +.

drop of solder - On completion computer Scorpion ZS256 (Revised Scheme AY).

attempt at writing - Short Story "The War Continues"

Advertising - Advertisements and announcements ...

Seven and 1 / 2 - From an unpublished: Verse "Scarce son went to his father ..."

Seven and 1 / 2 - Story of a Real Werewolfe or Virtual'no Amiga syndrome.

Seven and 1 / 2 - shoot yourself in the foot (lead programmer).

Topic - Musical ability ZX-Spectrum: What was, what is and what will happen.


Темы: Игры, Программное обеспечение, Пресса, Аппаратное обеспечение, Сеть, Демосцена, Люди, Программирование

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