Hardware - Megascreen port graphics mode.

                     If there was no money,
                     then probably
                     they wouldn't have invented something like this
                     cool car
                     like ZX-SPECTRUM.

                     SCHEME-MAN.


 If you're tired of wasting CPU cycles
to build MEGASCREEN, then collect
            MEGASCREEN PORT.

    After much experimentation and
failures I, or rather SCHEME-MAN, developed
this same MEGASCREEN PORT, the diagram of which
see below.
    This port, in principle, can be installed
to any ZX-compatible computer with
memory capacity of at least 128k!
    MEGASCREEN port (#FFFC or 65532)
is turned on by the 0th bit of the data bus and when
correctly assembled circuit in setup is not
needs.  BIG REQUEST FROM THE AUTHOR: DO NOT
HELL TO LITTER AND THE TIRE DAINNNH FOR EVERY LEFT
PORTS IF YOU ONLY WANT A CROSS-CUT
FUCK THE CURB!!!!!!!!!!!!!!
    Using the 3rd bit of port #7FFD you
you can change the position of the points and
attributes:
or points on page 5, attributes on page 7
or points in the 7th, and attributes in the 5th.
    How to install a port on PENTAGON 128? I
I think that soldering this circuit with a small
skills in working with a soldering iron will not be
a lot of work. So, let's get started!!!!!!!!!!!!!
    Cut off the 10th D62 leg from the board and
take the SCREEN2 signal from it, and the signal
STROB SCR. take it where the 10th wentleg
D62, before you brutalize her so much
cut off.
    Cut off the 1st leg D14 from the board and
give it the ATRIBUT signal, and also
cut off the 3rd leg D8 from the board and feed it to
her ATRIBUT signal. Frequency C29 can be taken
from trigger D15, from its 9th leg, or
from where the 3rd leg of D8 went before
you cut it off.
    Cut off the 9th leg D43 and the 3rd leg
D10, connect them with a wire and feed them to
them signal STROB #FE. Signal C24 can be
take D8 from the 4th leg.
Well, that seems to be all for PENTAGON 128.

   And now for the ATM TURBO 2 computer.
    Cut off the 10th leg D4 from the board and
take the SCREEN2 signal from it, and the signal
STROB SCR. go where the 10th leg went
D4, before you treat her so barbarically
cut off.
    Cut off the 1st leg D13 and the 13th from the board
leg D63, connect them with a wire and feed
the ATRIBUT signal is on them. Frequency C29 can be
take from the D60 inverter, from its 2nd leg, or
from where the 13th leg of D63 went before
how did you cut it. Third, fourth
elements D3 and the second element D4, on
the diagram below to connect to
ATMs are not used.

                      1┌───┐
         ┌─────────────┤=1 │3
         │ 2│ ├──┐
         │┌────────────┤D4 │ │
         ││ └───┘ │
SCREEN2 ││ ┌─────────┘
─────────О┼─────────┼┐1┌───┐
C29 │ ┌┼┤─┤ & │3 STROB SCR.──────────О──────┐ │││2│ ├───O──────────
                 │ │└┼─┤D2 │ │
                 │ │ │4├───┤ │
D0 4┌──┬──┬──┐2 └─┼┐└─┤ & │6 │
─────┤D0│T │Q0├────┘│ 5│ ├───┘
    5│ │ │__│3 ┌┼──┤D2 │
   ──┤D1│ │QOO───┐││12├───┤
   12│ │ ├──┤7 ││└──┤ & │11 ATTRIBUTES
   ──┤D2│ │Q1├── ││ 13│ ├───O──────────
   13│ │ │__│6 └O───┤D2 │ │
   ──┤D3│ │Q1O── └───┘ │
     │ │ ├──┤10 ┌──────────┘
     │ │ │Q2├── │ 8┌───┐
     │ │ │__│11 O──┤ 1 │10 ATTRIBUTES'
     ├──┤ │Q2O── │ 9│ O──────────────
    9│_ │ ├──┤15 └──┤D3 │
   ┌─┤C │ │Q3├── └───┘
   │1│ │ │__│14
  ┌┼─┤RS│D1│QЗO──
  ││ └──┴──┴──┘
  │└────────────────────┐
  └────────────┐ │
RESET │ │
─────────O ON │ │
         ──────O │
         O OFF │
         │ │
        ─┴─ │
IORQ 2┌───┐ ┌───┐ │
───────┤ 1 │1 ┌──┤ & │ │
WR 3│ O──┘ │ ├──O
───────┤D3 │ ┌──┤D2 │ │
A0 5├───┤ │ └───┘ │
───────┤ 1 │4 │ │
A1 6│ O──┘ │
───────┤D3 │ │
       └───┘ ┌────────┘
  +5В 4┌───┐ │11┌───┐
   <───┤=1 │6 └──┤ 1 │13 STROB #FE
C24 5│ ├───┐12│ O───────────────────
───────┤D4 │ └──┤D3 │
       └───┘ └───┘

Model:D1-K5SSTM8,D2-К15ЗЗЛИ1,D3-К5SSЛЕ1
       D4-К5SSЛПS




 С уважением, Dmitry (SchemeMan) кодер,ху-
дожник иrailwayman.