How to initialize the drive?

Subj. And then I discovered a glitch in NeOS. I came across it while writing Commander and now
I don’t know whose glitch it is - NeOS or Commander? There is a suspicion that the drive has not been initialized correctly, so I would like to know how to _correctly_ and
_completely_ initialize the drive?

Bye, All! Megus/Brainwave^X-Project. [ZX] [NeOS] [LMDF!]

Sun 13 Jun 1999 at 14:32:00, Roman Petrov => All:

RP> Subj. And then I discovered a glitch in NeOS. I came across it while writing the commander and
RP> now
RP> now I don’t know whose glitch it is - NeOS or the commander? There is a suspicion that
RP> the drive has not been initialized correctly, so I would like to know how to
RP> _correctly_
RP> and
RP> _completely_ initialize the drive?

I already wrote about this. In every detail. Or are we only reading ourselves? :)
Flop a:

a #3c
out (#ff)
a #d0
out (#1f)
b a
djnz $

Commas, LD, and registers in out are arranged to taste. :)

WBR, Oleg.

On Monday June 14 1999 Oleg Grigoriev wrote to Roman Petrov:

OG> I already wrote about this. In every detail. Or are we only reading
OG> ourselves? :). LD, and registers in out are arranged according to taste. :)
Let's sort it out, tea is not lamer :)

PS: Thanks, I'll check.

Bye, Oleg! Megus/Brainwave^X-Project. [ZX] [NeOS] [LMDF!]

Or maybe you should still look at the ready bit of the VG and not waste extra time
?

or

ld a,3ch
out (0ffh),a
ld a,0d8h
out (1fh),a

; [...] THE PLACE WHERE YOU CAN USEFULLY SPEND TACTS
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
; CONTINUE TO WORK WITH THE DISK DRIVE, CHECK AND WAIT FOR READY.

The most important thing is what is underlined. Or then where do these brakes come from?

Kirill Frolov. [ZX]

RP> Now I don’t know whose glitch this is – NeOS’s or the commander’s? There is a suspicion
RP> that the drive has been initialized incorrectly, so I would like to know how
RP> _correctly_ and _completely_ initialize the drive?
Give VGshka a command with code 0. There are no other ways, IMHO.

Good luck! Evgeny.

■ The night is shorter than the day... The day will kill me... The world of illusions burns down in it. (C) Aria.

Sunday, June 13 1999 13:32, Roman Petrov for some reason wrote All:

I don’t know how in Neose, but in tr-dos it’s something like this.

...
ld c,0 ;zeroing VG-93
call #3d13
ld c,1 ;initializing the current flop, it is advisable to execute !!!
ld a,x ;in a=0,1,2,3 driver number A,B,C,D respectively.
call #3d13
...
after which there is another command,

ld c,19 or #19 I don’t remember exactly!!!

I only know that one value is deleting the file whose number is specified in the
accumulator, and the second is setting up DOS to the current disk, you mean determining the type
of the disk, DS/DD and 40/80 tracks, which is desirable to do.
I am sure that most of the commanders are configured only for DD/80, and forgot about others
!!!
But this is just bullshit, you can also do it directly through the ports.

The smile cracked cheek! (hi...@format.udmnet.ru) Himik's ZxZ/from PoS

16 Jun 99 17:39, Ilya Kudryavcev wrote to Roman Petrov:

IK> ld c,0 ;resetting VG-93
IK> call #3d13
IK> ld c,1 ;initializing the current flop, it is advisable to execute !!!

2All: MANDATORY! On trdos 5.03 (all scorpions) there will be 3.1415...

IK> ld a,x ;in a=0,1,2,3 number drivers A,B,C,D respectively.
IK> call #3d13
IK> ...
IK> after which there is another command,

IK> ld c,19 or #19 definitely not I remember!!!

ld c,18h
call 3d13h ; only this way.

IK> I only know that one meaning is deleting a file whose number
IK> is set in the battery, and the second is setting up DOS on the current disk, you mean

But there is no such thing. Don't misinform.

Kirill Frolov. [ZX]

RP> and now I don’t know whose glitch this is – NeOS’s or the commander’s? There is
RP> a suspicion that the drive has been initialized incorrectly, so I would like
RP> to know how to _correctly_ and _completely_ initialize the drive?

What exactly is meant by initialization?

All the best, Pavel Fedin.

Monday June 14, 1999 02:19, Oleg Grigoriev wrote to Roman Petrov:

On Friday June 18 1999 Pavel Fedin wrote to Roman Petrov:

RP>> commander? There is a suspicion of incorrect initialization
RP>> of the drive, so I would like to know how to _correctly_ and _completely_
PF> What exactly is meant by initialization?
An operation necessary for the first (after turning on/resetting the computer) access to the
disk drive. Fives, as far as I know, don’t care whether they are initialized or
not,
but threes must be initialized. But what is included in it - I
already asked (what commands should be given to the controller).

Bye, Pavel! Megus/Brainwave^X-Project. [ZX] [NeOS] [LMDF!]

RP> An operation required the first time (after turning on/resetting the computer)
RP> accessing the drive. Fives, as far as I know, don’t care whether
RP> they are initialized or not,
RP> but threes must be initialized. But what is included in it -
RP> this is what I already asked (what commands need to be given to the controller).

In general, in order for the drive to actually start working, you need
to make sure that the correct number is in the VG93 track register. It
always contains the number of the track on which the head is located. The simplest way to
initialize this is to issue command #08 (restore). According to it, the head
is guaranteed to move back before the TR00 signal appears from the drive, and #00 is guaranteed to be written to the track register. There is another method used in TR-DOS
to protect against accidental movements of the head: before executing each command
the current track is simply read (#C4 is supplied - reading the address, the header of the first available sector is
read from it, the number
of the current track is taken from there and placed in port #3F). This second method has the disadvantage that it only works if there is a formatted disk in the drive. I don't know anything else on this issue, and AFAIK from the point of view of the controller, the treshka and the five are no different from each other.

All the best, Pavel Fedin.

Thursday, June 17 1999 07:50, Kirill Frolov for some reason wrote to Ilya Kudryavcev:

KF> 2All: MANDATORY! On trdos 5.03 (all scorpions) it will be 3.1415...

KF> But there is no such thing. Don’t misinform.

try it.

~~~~~~~~~
RP> whether they were initialized or not, but the three rubles must be initialized
~~~~~~~~
RP> definitely. But what is included in it - that’s what I already asked (what
RP> commands need to be given to the controller).
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Pisishnik, bad emulator...

Spectrum is not off-topic for you! And the drive doesn’t care, but for the controller
3 is no different from 5. And you need to remove the RESET signal from VG93. When you first
access each disk drive, move the heads to the 0 road.

Kirill Frolov. [ZX]

RP>> (what commands should be given to the controller).
KF> Writer, bad emulator...
If I were you, I would keep quiet... If I don’t know how to work with VG, this doesn’t
mean that you can freely attack me for this.

KF> Spectrum is not off-topic for you! And the disk drive doesn't care, but for
the disk drive doesn't care. Without initialization 3.5 disk drives _don't_want_ to work. I have been convinced of this more than once.

KF> controller 3 is no different from 5. But you need to remove the RESET signal from
For the controller - yes, nothing. But they differ from each other.

KF> VG93. When you first contact each drive, move the heads to 0
KF> the road.
That’s how you would have answered, instead of driving a bunch of unnecessary blizzard.

Bye, Kirill! Megus/Brainwave^X-Project. [ZX] [NeOS] [LMDF!]

AN> What? :)

Storm, however. :)

[ WBR, Don't. ]
[ 07:11 22 June XXXIV A.S. ]

AN> Ksasa? :)

STORM, however…

Kirill Frolov. [ZX]

Mon 21 Jun 1999 Pavel Fedin wrote to you here:

PF> I don’t know anything about this issue, and AFAIK from the point of view of the three-point controller
and
PF> five are no different from each other.

Maybe your problem is not the difference between three-point and five, but something else?
For example, the original version of Commander Max Petrova, who works well with
Russian 5.25" and some imported flops (including 3.50"), does not
plow
with Mitsumi flops at all.

All the best.
Best regards, Roman.

RP> The drive doesn't care. Without initialization, 3.5 drives do not want to work
RP>. I have been convinced of this more than once.

Do you need to write a list of signals sent from the controller to the disk drive
so that you understand that there is no provision for resetting the disk drives?
There is only control of the stepper motor, the number of the active drive, turning on
the motor, and the data being written. Have you even seen tr-dos without an emulator?
It works perfectly with 3.5 as well as with 5.25 and does not “initialize
the disk drive” in any way, except that it drives the heads back and forth.

And all the nonsense about initialization came from the pisyuk - RTFM docks to its
controller and about Look at the recording density and all that too...

RP> For the controller - yes, nothing. But they are different from each other.

THEY ARE EXACTLY THE SAME DEVICES WITH RESPECT TO THE DISK DRIVE BUS.
Or is it difficult to understand?

RP>> VG, this does not mean that you can freely attack me for this.
KF> VG has absolutely nothing to do with it. Have you held the disk drive in your hands?
Yes, you have. For reference, I also don’t understand hardware.

KF> active disk drive, turning on the motor, and the data being written. Have you
KF> ever seen tr-dos without an emulator? It works great with 3.5 as well as
I would say, but I won’t say anything... I saw it. I see it every day.

RM> does not
RM> plow
RM> with Mitsumi flops.

Isn’t it where the disk closes with a valve instead of a door, and when opened
it comes out into the hand? If these, then they generally worked strangely, in the commanders
that monitor the disk, the head rushes around all 80 tracks while monitoring
the disk. Although they write and read consistently.

Sincerely, Alex from FFC COMPUTERS.

>E-MAIL: asde...@softhome.net ICQ: #13064553

IK> and you try.

What are you talking about? If about the initialization of tr-dos, then as I wrote.
Or find any scorpionist and he will compile for you a dictionary of Russian obscenities
regarding some crooked programs.

Kirill Frolov. [ZX]

On Monday June 28 1999 Kirill Frolov wrote to Ilya Kudryavcev:

KF> What are you talking about? If about the initialization of tr-dos, then as I wrote.
KF> Or find any scorpionist and he will compile for you a dictionary of Russian obscenities
KF> regarding some crooked programs.
I am a scorpionist. Name at least one crooked program, and what if it really is glitches. So far everything is working without problems for me.

Bye, Kirill! Megus/Brainwave^X-Project. [I ZX] [NeOS]

Thank you so much! (hi...@format.udmnet.ru) Himik's ZxZ/from PoS

AL> Isn’t it the case where the disk is closed with a valve instead of a door, and when opened
AL> it comes out into your hand? If these, then they generally worked strangely, in the commanders

He. Mine has a regular door. It's called D509/V3 - imho the best flop for Spec.
It works in DD, and in HD too.
And that glitch with Max Petrov's commander and on 3.5" flops from Mitsumi
is observed (and there are a lot of them!). Let AXLR tell you what it is - he fixed this
glitch
in MAX.

29 Jun 99 21:30, Roman Petrov wrote to Kirill Frolov:

RP> I am a Scorpio person. Name at least one crooked program, and what if it really is
RP> glitches. So far everything is working without problems for me.

First versions of Isaev's unzip, team by Max Petrov.
There are many programs where ATTEMPTING TO CHANGE THE DISK DRIVE from the program leads
to a disk error or reset. But on tr-dos 5.04 everything is ok. Well, with a screw in gusto
even in 3d13 this doesn’t work.

Kirill Frolov. [ZX]

IK> Don’t use nonsense like 5.03, take more like 6.08 or 6.09.

I wrote about _SCORPIO_. And I will not climb into the computer with a soldering iron because of
buggy programs. And tr-dos 6.xx is... that it’s better to press F8 right away,
I saw it, I know.

Kirill Frolov. [ZX]

KF> I wrote about _SCORPIO_. And I will not climb into the
KF> computer with a soldering iron because of buggy programs. And tr-dos 6.xx is .... which is better
KF> to press F8 right away, I saw it, I know.
What exactly did you not like about it? I've had it for over a year now and everything
works fine.
With respect, SP/PoS.

On Thursday July 01 1999 Kirill Frolov wrote to Roman Petrov:

KF> The first versions of Isaev's unzip, command by Max Petrov.
Remind me of the appearance of the commander, please, I forgot something.

KF> There are many such programs where an ATTEMPT TO CHANGE THE DISK DRIVE from programs
KF> leads to disk error or reset. But on tr-dos 5.04 everything is ok. Well, with
KF> screw in relish even after 3d13 this does not work.
Strange... I haven’t encountered it, as far as I remember. It seems that Scorp is the most ordinary,
TR-DOS is ordinary.

Somehow Wed 30 Jun 1999 at 08:27:52 there was a conflict
Ilya Kudryavcev and Kirill Frolov were arguing on the topic How to initialize a
disk drive?
I decided to add some heat to this dialogue

IK> Hello Kirill !

IK> Monday, June 28 1999 02:58, Kirill Frolov for some reason
IK> wrote Ilya Kudryavcev:

KF> I wrote about _SCORPIO_. And I won’t go into the
KF> computer with a soldering iron because of buggy programs.
Stubborn dammit?

KF> And tr-dos 6.xx is .... what’s better
KF> to press F8 right away, I saw it, I know.
What exactly can you say baby, maybe it’s not worth pushing right away, think
well before throwing such thoughts.

RP> Remind me of the appearance of the commander, please, I forgot something.

The commander is built into MADROM, but everything is probably already fixed there.
And there is a version by Max Petrov with all the glitches.

Kirill Frolov. [ZX]

Sunday, July 04 1999 18:02, Max Shashkin for some reason wrote Ilya Kudryavcev:
MS> 5.03 is not bad, but you need to focus on all the firmware
MS> By the way, whoever has it, send (you can use soap) trdos type
MS> 6.08 6.09 and descriptions for them (which is all Mulya)

Well, here is the first interested person.

I, as one of the authors of this Dos, will tell you what I remember:

1. Added the ability to write/read VG ports. I don’t remember which addresses, but
it’s easy to see.
2. The turbo-load/save procedures are inserted into the input of which only the data
type is given - HL, where
DE,trk&sec
B, how many
A, drive
call #xxxx calling the load/save procedure
which makes it possible to easily disk toys with loads.
3. You can load and save pictures like this - load/save "screen" SCREEN$ and that's it.
4. Fixed a head positioning error when reading a large number of
sectors.
5. When resetting to DOS, the "A" and "B" keys select the default drive.
6. When writing a file to a disk with an existing name, a request is now issued -
overwrite Y/N?.
7. Three “MAGIC” procedures, after pressing NMI, a key press is expected - caps,
symbol or space, but I don’t remember what each of them does.

I don’t remember anymore. All of the above applies to version 6.08, I can’t say anything about 6.09
because it is still in text form...

you are wrong! I don’t know about 6.08 or 6.09, but our 6.04 tastes :) it reminds
of a farev’s steering wheel and sack. do you need?

Best wishes, Artur. [ZX]

10 Jul 99 19:23, Artur Ishmurzin pressed the buttons for Kirill Frolov:

AI> you're wrong! I don’t know about 6.08 or 6.09, but our 6.04 tastes :)
AI> resembles a steering wheel and a farev’s sack. is it necessary?

In your DOS, the magician does not plow: it saves something to the disk and resets it, the image
on the disk also does not plow :( Of course, it’s not really needed, but still...
it was advertised as improved, but it turned out to be absolutely not working.

Sincerely, Yura DOORSFAN
[ZX] [DOORS] [BLACK SABBATH]

Thank you so much! (hi...@format.udmnet.ru) Himik's ZxZ/from PoS

11 Jul 99 22:00, Yura Yakimuk -> Artur Ishmurzin:

AI>> you're wrong! I don’t know about 6.08 or 6.09, but our 6.04 tastes like :)
AI>> resembles a steering wheel and a farev spool. is it necessary?
YY> In your DOS, the magician does not plow: it saves something to disk and
YY> is reset, the image on the disk also does not plow :( Of course, it’s not really
YY> that’s what’s needed, but still... it was advertised as improved, but it turned out
YY> absolutely not working.
If my memory serves me right, then you need to hold some kind of key there. Try
caps, shift... By the way, there is, how to say, a sophisticated magic, it
works 99%.
With respect, SP/PoS.

Press F8 on it? No need.

I’m quite happy with 5.13 or 5.12 by Andrey Isaev, but the ramdisk
had to be fixed a little.

Kirill Frolov. [ZX]

IK> Well, here is the first interested person.
[skip]
IK> I don’t remember anymore. All of the above applies to version
IK> 6.08, I can’t say anything about 6.09
IK>, because it is still in text form...
^^^^^^^^^
how do you understand this?
IK> My cheek cracked from smiling! (hi...@format.udmnet.ru)
IK> Himik's ZxZ/from PoS
IK> -+-
IK> + Origin: Whatever you were with, that's how you stayed...
IK> (2:5050/11.44)

YY> In your DOS, the magician does not plow: it saves something to the disk and
YY> is reset, the image on the disk also does not plow :( Of course, it is not really
YY> what is needed, but still... it was advertised as improved, but it turned out to be
YY> absolutely not working.
OUR TASHKENT VERSION No one has seen TR-DoS in Russia yet, it should not be confused with other versions. Very soon they will be released into the light of day, i.e. in the echo of ZX.SPECTRUM. And to see what they are approximately, just read the previous issues of Wallpaper.

With respect, Musa Khaybullin.

IK> So, is it yours or ours?
IK> Our first modernization was called TR-DOS v6.04 !!!
Our firmware consists of a bunch of different DOS, in particular, and a little from YOUR
firmware 6.04. The best is taken from all the dos - and something new is added, so wait for Wallpaper ©7. There will be both firmware and programs tailored for it.
And you can read the announcements in previous issues of Wallpaper.

By the way, I could throw in 6.08 and 6.09 - I’d like to see what new things you
invented there?

Health and prosperity to you, Ilya!!!!

With respect, Musa Khaybullin.

AI>> resembles a steering wheel and a farev's sack. is it necessary?
YY> In your DOS, the magician does not plow: it saves something to the disk and
YY> is reset, the image on the disk also does not plow :( Of course, it is not really
YY> what is needed, but still... it was advertised as improved, but it turned out
YY> is absolutely not working.

^^^^^^^^^^^^ this is probably
Yours, but there is also Ours. there is no doubt about this, since it is currently flashed on my Pentagon... I don’t know whose is better (I haven’t used yours),
but I’m not complaining about ours :).

MS> ^^^^^^^^^
MS> How do you understand this?

What’s not clear? TASM4.2 and that's all...

This version has not yet been completed to the bitter end, it makes sense to have a lot of checks, etc. Driver support for PUSHER v6.xx has not yet been activated.
And another thing is that T-REX began development, and now it has been handed over to me without a single
message about innovations.
However, I can tell you something:

1. The dosa has its own procedure for printing a symbol, which significantly increases
the speed of operation.
2. All DOS commands are displayed in bold font.
3. There is a transition to the desired drive when resetting the car by holding down
the corresponding keys.
4. For PC keyboard users, the F1-Fxx keys work, one of them is stopping the program at any time during operation and exiting to bass mode.
5. The kit includes another bell with a converted STS monitor, which
can edit kmos and much more.

This is only a small part of what is generally implemented in it, I just don’t remember.

I cracked my cheek from smiling! (hi...@format.udmnet.ru) Himik's ZxZ/from PoS

KF> Press F8 on it? No need.
KF> I’m quite happy with 5.13 or 5.12 by Andrey Isaev, only
KF> I had to fix the ramdisk a little.

if they’re happy with it, then of course you can press F8... although F8 is pure pissism...

IK>> Our first modernization was called TR-DOS v6.04 !!!
AI> ^^^^^^^^^^^^ this is
AI> probably yours, but there is also ours. there is no doubt about this,
AI> since it is currently flashed by me at the Pentagon... I don’t know whose
AI> is better (I haven’t used yours), but I don’t complain about ours :).
Enough arguing already, yours, ours, everyone writes for himself if he is not
satisfied with the standard option. ;) Everyone considers their product better than y
others...
With respect, SP/PoS.

YY>> is very necessary, but still... it was advertised as improved, but
YY>> turned out to be absolutely not working.

AI> you are not talking about our version. _desired_! in _our_ version there are
AI> 3 (three) variants of magic: regular, sophisticated and perverted. so
AI> you can use whatever you want!
The most important thing is that there is access to the keyboard when DOS is turned on, otherwise, for
for example, in Leningrad and most likely in Scorpio, the keyboard is blocked in
DOS mode so that the VG93 ports do not conflict with Kempston. And on other
implementations of Specky: Pros and Pentagon (I know for sure - it’s been tested), the keyboard in the dos
is not blocked, you can select this bunch in the dos (as many as 3!) MAGiKOV ;)))

Sincerely, Musa Khaybullin.

July 15, 1999, Musa Khaybullin writes to Artur Ishmurzin:

[...]

MK> The most important thing is that there is access to the keyboard when DOS is enabled,
MK> and
MK> then, for example, in Leningrad and most likely in Scorpio, the keyboard
MK> is blocked in DOS mode so that the ports VG93 did not conflict with Kempston.

This absurdity is because Zonov killed two birds with one stone - the keyboard and joystick were made
on KP11... I once had to say goodbye to the joystick because of
crookedness.
It is unlikely that Zonov left such nonsense in Scorpio...

Yours sincerely,
Renat

AI>> I have to, since it’s currently flashed on my
AI>> Pentagon... I don’t know whose is better (I haven’t used yours), but I’m not complaining about Ours
AI>> I’m complaining :).
KS> Stop arguing already, Yours, Ours, everyone writes for themselves, if not his
KS> I'm happy with the standard option. ;)

well then! :)

KS> Everyone considers their product better than others...

hmm... considering your product better than others despite the facts, IMHO, is nonsense. example -
the situation on the offtopic with D'Bill, Mazdasoft and their miserable product :)))

Right now... Where have you seen this? Everything works everywhere, on all scorpions,
on all kayaks... Even probably on sprinters, peters and emulators.

Well, in Leningrad with an EXTERNAL controller, everything depends only on the
controller itself - a normal external device should not put pressure on the ports if
it does not use them.

MK> so that the VG93 ports do not conflict with Kempston.

Where have you seen this?

So TR-DOS will not work at all... 1F is a status register,
without it there will be NO DISK and write protection there and all the errors...

MK> And on other implementations of Speccy: Pro and Pentagon (exactly
MK> I know - it’s been verified) the keyboard in the dosa is not blocked, you can select this bunch (as many as 3!) of MagiKOVs in the dosa
MK> IMHO, you can even use the branded ZX-48 + TR-DOS is also branded.

There will be problems only with very crooked homemade products.

Kirill Frolov. [ZX]

RM> It’s unlikely that Zonov left such nonsense in Scorpio...

The ports in Scorpio are made on 2 KP11 too, but imho, in addition to the keyboard and
Campston, there is now something else used with TR-DOS. :-) In Leningrad, the ports were easily normalized; at the OE input, in place of IORQ+RD
another mixture of A0+A5 was added (I think LI1 element, I don’t remember exactly right now).
KP commutation remained along A0. It worked perfectly and did not pollute all ports.

Regards, Alex from FFC COMPUTERS.

>E-MAIL: asde...@softhome.net ICQ: #13064553

AL> The ports in Scorpio are made on 2 KP11 too, only imho bypassing the keyboard and

I overestimated it :)

AL> Kempston there is now something else used with TR-DOS. :-) In
AL> Leningrad, the ports were easily normalized; at the OE input, in place of IORQ+RD
AL>, another mixture of A0+A5 was added (I think LI1 element, I don’t remember exactly right now).
AL> CP commutation remained along A0. It worked perfectly, and did not dirty all
AL> ports.

Now it’s easy to remember, G) but then it was a whole problem :)

Sincerely,
Renat

KF> Right now.... Where have you seen this? Everything works everywhere, on all
KF> scorpions,
KF> on all kayas... Even probably on sprinters, Peters and emulators.

we open the Scorpa circuit.
And we see that with an active DOS signal when accessing ports
for which A1=1 the /CSIOD signal has the audacity to be equal "1",
due to which D55 (the decoder of the main ports) is blocked.

so that it does not work “on all scorps”.
I don’t know about the kai.
And a mule is a mule, to glitch.

And to completely prove that you are wrong, think:
_WHY_ in TR-DOS control on BREAK is done like this:
go to _regular_ ROM at the address.... I don’t remember what the polling address is BREAK

KF> Well, in Leningrad with an EXTERNAL controller everything depends only on the
KF> controller itself - a normal external device should not put pressure on the ports if
KF> it does not use them.

what about port #1F?
And blocking is also needed to ensure that there are no conflicts
ports due to coincidence of addresses or due to incomplete decryption.
And a “normal _external_ device” is obliged to block
ports to avoid!

Somehow 09:19:04 at approximately 07/17/99 someone Alex Letaev reported
for Renat Mamedov that “Re: How to initialize the drive?”

[ ]

AI>
AI> hmm... considering your product better than others despite the facts, IMHO, is nonsense.
AI> example - the situation on an offtopic with D'Bill, Mazdasoft and their
AI> miserable product :)))

[ ] - Offtopic...

[Team Kelly] [I ZX]
Hasta la vista.
Tim Kelly

Find yourself in a looking-glass...

... E-Mail: tim_...@mail.ru 500:622/1@zxnet ICQ UIN: 34684028

The clavier is only blocked in tricky cases, for those machines that were originally tap machines, and then a controller was connected to them. There, two places were cut on the board: OE ROM and IORQ, and signals were sent there from the controller. When
TR-DOS was running, IORQ went only to the controller, and did not return to the computer.
:-) Moreover, about 50 to 50 normal connections of the controller to the left ones.

RM> Now it’s easy to remember, G) but then it was a whole problem :)

Yes, back in 1993, Max and I struggled with this improvement scheme for 3 days and
two nights. :-)

AL>> clave and campstone there is now something else with TR-DOS
AL>> used. :-) On

AM> bits 6,7 Kempston has bits 6,7 port #FF in the TR-DOS area
AM> That is. Kempston and TR-DOS port #FF are always the same thing

This doesn’t bother anyone, however. You won't find joysticks with 4 buttons; connecting them to the Spectrum is useless.

Kirill Frolov. [ZX]

KF>> scorpions, on all kayaks... Even probably on sprinters,
KF>> peters and emulators.

AM> open the Scorpio circuit.
AM> And we see that with an active DOS signal when accessing ports,
AM> for which A1=1 signal /CSIOD has the audacity to be equal "1",
AM> due to which D55 (main port decoder) is blocked.

Laim. Not blocked. Did you press MAGIC? And it clicks pages.

AM> so it doesn’t work “on all scorpions.”

RTFM. etc...

Everything works. I have Scorpio and TR-DOS 5.12. And so I press the buttons in it
and they are pressed. And the buttons THERE DIRECTLY IN TR-DOS BY COMMAND IN A, (#FE) are read.
I don’t mean the command line, but the service after magic and X-COPY.

Look at the diagram more carefully - there A0 is separately connected to LI1, probably
I don’t remember exactly. It is necessary just so that MOA CAN READ KLAW IN TENEVIKE!!! Or is your keyboard not working in your shadow and you still struggle with the mouse?

AM> As for the kai, I don’t know.

I know for sure. It works there too, I checked my ROM there.

AM> And the mule is just a mule, to glitch.

But I don’t check anything in the mule, TRDOS is not emulated in any emulator
correctly.

AM> And to completely prove that you are wrong, think:
AM> _WHY_ in TR-DOS control on BREAK is done like this:
AM> go to the _regular_ ROM accordingaddress .... not remember what
AM> there address poll BREAK

Spposi have moreover, who this tp-dos wrote. I don't know.

MK>> then, for example, in Leningrad and most likely in Scorpio, the keyboard
MK>> is blocked in DOS mode so that the VG93 ports do not conflict with
MK>> Kempston.

RM> This absurdity is because Zonov killed two birds with one stone - the keyboard and joystick
RM> are made
RM> KP11... at one time I had to say goodbye to the joystick due to
RM> curvature.

KF> Leim. Not blocked. Did you press MAGIC? And it clicks pages and pages.

and now the question: WHY does Magig spoil cell #5C00 by writing #C9 there?
(it seems so)

[ ]
KF> Everything works. I have Scorpio and TR-DOS 5.12. And so I press the
KF> buttons in it and they press. And the buttons THERE DIRECTLY IN TR-DOS BY COMMAND IN A,(#FE)
KF> are readable.

I advise you to look at the diagram of a regular scorpion, and then explain where the joke is.

[ ]
KF> Look at the diagram more carefully - there A0 is separately wound up on LI1
KF> probably,

A0 is wound up directly on ID7
A ID7 opens when IORQCE is called, A2=1 and with this plug:

┌───┐
A1 ───────────────────┤ & ├──────── on ID7 (4)
┌─┤ │
│ └───┘D32
“0” goes here when └────┐
selection #3d?? ┌───────┐ │
──┤S ├───┘
│ │
/WAIT─┤C │D58
──┤D │
│ │
/RES ──┤R o──────── /DCDOS
└───────┘

In order to open ID7 you need to make “0” on its 4th leg
This is achieved either A1=0 or an inactive DOS

KF> signal I don’t remember exactly. It is necessary just so that MOA CAN READ KLAV IN THE TENEVIK
KF>!!! Or your keyboard doesn’t work in your shadow and you do everything with the mouse
KF>you are suffering

Come to your senses!!!
the netevik is not in TR-DOS at all!!!!
But in his personal bank, which is accessible even when DOS is inactive!

[ ]

KF> However, this does not bother anyone. You won’t find joysticks with 4 buttons with the
KF> spec
KF> room
KF> it’s useless to connect them.

Will a joystick from Dandy do?
(Take it, gut it, and connect it)
but about “useless” - I’m wrong.
Can I dare myself to write a program that give
a four-button joystick?

But the main problem is not this: the fact that Zonov hooked up something else to
unused bits to reduce small circuits -
this is understandable, not a problem.
But the fact that the software climbs to the “left” bits of the ports, and nowhere
the presence of this is not documented - suck.
It’s probably very interesting to those who book about SMUG I upgraded
my computer to scorpion ;-)

AM> bits 6,7 Kempston has bits 6,7 port #FF in the TP-DOS area
AM> That is. Kempston and TP-DOS port #FF are always the same thing

Ah, cool idea! And when I was tinkering with the yellow board without a circuit diagram, just these CPs flew out, because a man was resoldering a Kempston with a big funny soldering iron, so I saw strange signals on the high bits. :-)

KF> to
KF> it is useless to connect them to the Spectrum.

I don’t see anything complicated in connecting joysticks from DENDy/SEGA/AMIGA to the
Spectrum - neither from the hardware side, nor from the software side.

Best regards, Dmitry.

Somehow 07:09:54 around 07/20/99 someone Alex Letaev reported
for Aleksandr Majorov that "Re: How to initialize the drive?" That is Kempston and TP-DOS port #FF are always the same thing

AL> Ah, cool idea! And when I was tinkering with the yellow board without a circuit diagram, just
AL> these CPs flew out, because the man was re-soldering with a big funny Kempston
AL> soldering iron, then I saw strange signals on the high bits. :-)

what's cool here?
Just that they saved a chip or two...
But the best thing is that 2 ROMs of 2.95 MOA poll port #1F (Kempston)
precisely for the presence of these bits!
I.e. checks the readiness of VG'hi from BASIC.
As a result, when upgrading computers to scorpion, you have to
forcibly duplicate port #FF TR-DOS to #1F BASIC ;(

Jul 19, 1999 you wrote here:

AM> Pentagon - on the circuit that I have, the blocking signal is generated!
AM> But you won’t understand where it goes.

But nowhere, only to the printer port! (In the naked Pentagon.)

All the best.
Sincerely, Roman.