ZX Review #1-2 31 декабря 1996

ATM Turbo     Железо

Computers, we choose - Finalization of the computer "ATM-TURBO".

                       COMPUTERS THAT WE CHOOSE

(C) Juice Andrew (KONEX). SCORPION CLUB. Moscow, 1996


         Refinement of the computer "ATM-TURBO".


    I would like to offer you my revision, after which the 
"ATM-TURBO" will run all programs that use the command OUT (# 
FD), A. 

    In ZX REVIEW 95 / 3 was an article on improving the 
compatibility of computer "ATM-TURBO 2". Unfortunately, the 
hardware changes that are described there, for the "ATM-TURBO" 
no good, despite the similarity of the schemes of these two 
computers. So I had to develop his scheme to refine it for the 
"ATM-TURBO". 

    But before we describe it, I shall refine the description 
of "ATM-TURBO". 

    1. In parallel, trigger D50 soldered another trigger
TM9 and skip through it signals SOUND (D50/12) and TAPEOUT
 (D50/10), pre-cutting them off from the D50. Clock input

                                       _____
a new trigger, connect the signal BRDWR.

                       _____ __

    2. Otrezhte BRDWR signals from the D50 / 9, and M1 from the 
D17 / 6, and soldered D17 555KP12 top chip, connect the wires 
as shown in Figure 1 


           _____ 555KP12

           BRDWR 6

                      A0 MX (reduced in size)

                   5 2 * 4-1

                      A1

            +5 B 4

                      A2

                   3

                      A3

            GND 1 __ 7 to D50 / 9

                     oEA

                  10

                      B0

            +5 B 11
                   B1

            GND Sept. 12 to D17 / 6

                      B2

             A9 1913

                      B3

            GND 15 __

                     oEB

            __ (Reduced in size)

            M1 14

                      S0

            RG0 2

                      S1


                           FIG.1


    So, now the number of running programs has increased, 
mainly due to those over which brutally abused VASILYEV ANTON, 
"famous" because spoiled sprites, and cut the game some 
podzagruzhaemyh stages (INDIANA JONES AND THE LAST CRUSADE, THE 
UNTOUCHABLES, THE HUNT FOR RED OCTOBER, ASTRO MARINE CORPS.1 
'2, P-47, etc. etc.). 

    Now Playing "Honey Commander" You know what
your computer's 512K memory, 128K, ie access to all 512K 
possible only from the regime of CP / M.


    Therefore the use of "Honey Commander" is almost 
meaningless, because Maximum RAM DISK now it is only 32K.


    Moreover, as a "no go" and "no go" programs such
as: INSULT MEGADEMO, ECSTASY MEGADEMO, MIRACLE DEMO, PSG-WINS, 
some system programs and games that use the intro command OUT 
(# FD), A. 

    Therefore, if you want you work all these and
many other programs, as well as SPECTRUM'ovskom regime had 
access to all 512K, then you need to solder 2 more chips and a 
toggle switch. 

    So, all in order:

    1. A9 instead of the signal at 13 feet 555KP12 shown in 
Figure 1, must be submitted +5 V


    2. Solder circuit shown in Figure 2


                   K155LI1


  with the D76 / 5 (RG0) 1 '

                        3

  with D77 / 1 (RG1) 2

                            K155LL1


                            January 1

                                    3 on the switch

              A9 Feb. 1 at D17 / 1


       eg D1/39 3

                                       to switch

                                                   2


                            Fig.2


    We need to take 2 chips K155LI1 and K155LL1. At 1 foot
K155LI1 need to signal RG0 from 5 feet D76 (K555LN1).
By 2 foot K155LI1 should give a signal with a leg RG1 D77
(K555KP11). At 1 foot K155LL1 need to give a signal with 3 legs
K155LI1. By 2 foot K155LL1 should give a signal A9, taken,
for example, from 39 feet D1 (Z-80).

    3. Cut off from the D17 / 1 signal A9 and instead soldered 
to the D17 / 1 wire. Other end of the wires are soldered to the

to pin tumbler, which can switched in one
situation with one contact, and in another - with another 
contact toggle switch (ie, either closed circuit 3-2, as in 
Figure 2, or chain 3-1).


    4. One of the two remaining contacts to toggle
solder the signal from 3 feet K155LL1, on the other - to signal 
A9. 

    Most convenient to use conventional two-position toggle 
switch. 

    Now, if you set the dial to the position as
shown in Figure 2, ie loop ends toggle switch contacts 3 and 2,
you'll have access to 512K in SPECTRUM'ovskom mode
(And not only in the CP / M), and "Honey Commander" You will 
see this. Now you can fully work with this great program 
(especially her well fourth edition).


    If you loop ends toggle switch contacts 3 and 1 (see Figure 
2) you'll have to go all the programs that were previously plus 
those use the command OUT (# FD), A (INSULT MD, ECSTASY MD and 
many others). 


    WARNING! Do not forget to seventh legs and K155LI1
K155LL1 solder land, and by the 14th-+5 V.


    That's it. Lots of fun awaits you after 20-30 minutes of 
work!