Chrome - a modern Italian clone of Spectrum
ZXNet echo conference «hardware.zx»
Hello, All
It would be interesting to know the opinion of our hardware specialists about this
modern development: http://aticatac.altervista.org/mainframe.htm.
Hello Grand
and it would be even better if they gave GAL source codes :cool:
Hello Orionsoft
I can say that the scarf has been ironed
Hello, do_se
Gra> It would be interesting to know the opinion of our hardware specialists about
Gra> this modern development:
Gra> http://aticatac.altervista.org/mainframe.htm.
Not so new - Oct 23, 2003, and they talked about it more than once.
+D - I think we don’t need it. There are no cheesecakes anymore... (= dead piece of iron).
On the plus side - maximum compatibility with the original (inheritance of Speccybob, his
you can see the diagram in the corner ;) - http://aticatac.altervista.org/foto/foto2.jpg ).
Hello Sonic
Son> The raw materials are all on the page.
JEDEC files are far from raw.
Hello fan
The raw materials are all on the page.
+D - well, you’re wrong IMHO. Of course it is not compatible with TR-DOS, but to be honest
Considering the number of living spektrumists in Russia, it is not so difficult to switch to it.
Its advantages: expandability and support for alternative media (HDD, etc.)
Hello, The Exploited
2ALL
Anyone interested in resurrecting this thing -
http://aticatac.altervista.org/foto2.html ?
If you do it on ALTERA EPM7128SLC84, then there will be a dozen more free pins left
(I’m thinking of making it 128k real).
Hello Sonic
offtopic
Son> but honestly, considering the number of living spektrumists in Russia
where does the information come from?
Hello fan
I did this thing..., I did not install ROM and RAM for +D. There doesn't seem to be anything wrong with
There were no compatibility problems either. Put it aside for now, but already in plans
connecting CF from Pera Putnik, you just need to shovel the ROM to pull it out
putnikovskaya OSka and insert into 128K-ROM... Together with the LCD screen from PS-1
it turns out to be a good knee pad :) with a consumption of 5 volts 250 mA...
Hello rw6hrm
2ALL
I wanted to know -
SpeccyBob slows down the processor when it accesses the port while the video is active
controller Does the same thing happen on branded specs?
Hello fan
Yesterday I asked a friend from velesoft.speccy.cz for the non-password-protected speccybob128.zip
, oddly enough, he posted it :) This thing is his own innovation and also
not tested.
If we get our hands on it, then we will have our own clone on the matrix as close as possible
to the original (with all the cheeses).
Hello fan
fan> If it’s not a secret, why are they needed?
Self-study
Hello Orionsoft
Ori> and even better, they gave GAL sources
If it's not a secret, why are they needed?
Hello Orionsoft
Ori> Self-learning
That is Does this have anything to do with the subject? In other words, are you not going to collect +D?
;)
Hello fan
fan> Aren't you going to collect +D?
when I had exactly a three-inch floppy drive and a dozen floppy disks for it
I really wanted to download from them, of course, but they were in the +D system
and at that time the only disk interpreter was trdos.
Hello fan
fan> SpeccyBob slows down the processor when it accesses the port at the moment of action
fan> controller video . Does the same thing happen on branded specs?
Busy>on scorpion, emulators and didaktiks M/Kompakt no problem, but it is big
Busy>problem on original Speccy (Gama,16k,48k,128k,+2,+2A,+3). because #FE on
Busy>original speccy is slow-down by ULA when videoram is read
the conversation was about sound output through a beeper using PWM
Hello, The Exploited
The> Busy>on scorpion, emulators and didaktiks M/Kompakt no problem, but
The> it is big problem on original Speccy (Gama,16k,48k,128k,+2,+2A,+3).
The> Busy>because #FE on original speccy is slow-down by ULA when videoram
The> is read
The> the conversation was about sound output through a beeper using PWM
Thanks for the info!!!!! A very interesting fact. Where is this quote from? Link is not
preserved?
It turns out that our specs are the most correct in the world ;)
According to SpeccyBob, this monster ate almost 110 cells out of 128. Not
It’s surprising that in chrome the brain port was pushed into a separate compartment ;) .
But the scarf turns out to be practically one-sided and with straight jumpers (if not
sculpt cell extensions).
File: ReSpecT.gif http://zx.pk.ru/attachment.php?attachmentid=3991
Hello, The Exploited
Yeah, that's where this evil FF came from (in fact, not only him ;) but also
everything that is not slowed down by A0=0 ;) ). In short, the wind blows because the trees
rocking :D
If I hadn't bothered to pick this miracle, I would never have recognized these features :D
Hello fan
fan> Thanks for the info!!!!! A very interesting fact. Where is this quote from?
fan> Link not saved?
I asked on IRC yesterday
fan> It turns out that our specs are the most correct in the world
Well, apparently the whole point is in those same resistors that connect the processor’s SD to the SD
memory - the same #FF port. when reading from RAM, the processor simply does not
can work with its own SD, apparently so.
Hello, fan
ntc
Hello fan
I tormented the design a little more to 128k, it turned out that the pins were jammed under
the beginning of % and without any support for music support... You can only cut the FE port
outside by blocking A0 (I hope no one minds ;) ). It also turns out that
The percentage will be slowed down by chopping off the shred (and not by waiting).
As for the scarf, the scarf turns out to be universal (whoever wants can make 48k only),
You can see the current appearance in general terms there
http://sblive.narod.ru/ZX-Spectrum/ReSpecT/ReSpecT.htm.
P.S. Bob48 occupies 103 cells in the matrix (after compiling the circuit input).
Hello fan
I’m still focusing on the design of the scarf (the last portrait and sketch there
http://sblive.narod.ru/ZX-Spectrum/ReSpecT/ReSpecT.htm also added a list of pins
for 128+AY), other changes will be made as needed.
I have not yet decided what to hang on the free two pins.
2 hero
Have you messed around with video modes?
Maybe make another option with a VGA monitor support (60Hz)%)
ZY IMHO it’s better to hang all kinds of garbage on the first bits of the 1FFD port (and there’s nothing else
ports should be connected, pins need to be saved ;)).
Hello fan
fan> Or do you mean that you need to screw something else on board?
Well, yes, that's exactly it.
Without a disc converter it looks strange in our time.
Tyrdos would screw it on board.
Hello fan
What does Respect provide as an external media?
Hello Costa
Cos> And what is included in Respect as an external media?
It's a strange question, what you screw on is what happens. Or do you mean that you need
Should I screw something else on board?
Hello Costa
Cos> Without a disk converter, the version looks strange in our time.
On the contrary, this is the very last word. And then, why did they bring the bus to the connector?
Hang on it whatever you want.
fan> Can make another option with a support for VGA monitors (60Hz) %)
How do you imagine 60Hz on Spec? Everything will go to hell. No, not at all
In this case, you can’t move away from 50Hz, but about TFT monitors that support 50Hz
I wrote that there is no problem purchasing them now.
her> Bring the beam blanking signal out
Yes, I would really like to be able to then select from the composite synchro
separately frame, line and VideoEnable for the VGA converter.
Hello Costa
Cos> Well, that's exactly it.
Cos> Without a disk converter, the version looks strange in our time.
Cos> Tyrdos would screw it on board.
Well, you definitely can’t roll it on one side and the dimensions will be insane.
As a result, the whole point of the idea is lost.
Yes, and I still hope that someone will undertake the creation of a controller for
single-chip compatible with Tyrdos but working with memory cards.
Bla> How do you imagine 60Hz on Spec? Everything will go to hell. No
Bla> in no case should you move away from 50Hz, and about TFT monitors
Bla> supporting 50Hz, I already wrote - there are no problems purchasing them now.
Since 50Hz is not a problem, then there are no problems. Two codes/firmwares are created (TV/VGA
50Hz) and everyone sews what they like best. If you become completely perverted, then you can
roll this and that, but I’m afraid it won’t fit (and there’s practically nowhere for the TV/VGA toggle switch
hang).
Bla> Yes, I would really like to be able to separate it from the composite one
Bla> syncs separately frame, line and VideoEnable for the VGA converter.
Point blank, I don’t understand why a converter is needed if you can immediately make VGA (Sync and
Let's say TapeOut is reassigned to Hor. & Vert.) .
Hello, Black_Cat
Bla> In this case, an image is displayed from one pair, and from the second pair
Bla> the processor works to modify the pictures, and then they change
Bla> in some places. But this is all very much a pitchfork in the water..
There simply won’t be enough pins, although it turns out great, something like a frame buffer
.
For starters, you can just force VK to quickly consume bytes, and more
charge registers at a time so that the percent can do something during the screen (but this
hemorrhoids...)
Hello, Black_Cat
Bla> Well, if you have already thought of it and even fits into the FPGA, then oh.
Not thoughtfully (now someone else is thinking ;) I wonder what he will say), but special
I don’t see the problem. Although I’m more interested in the color per point mode, in principle
can be done without being slow at all, because we don’t rely on ready-made architecture and
nerdy brains.
Cos> And you will have to attach it anyway, otherwise how will you load the programs?
Well, let it be a separate piece of hardware. Moreover, not everyone needs it,
some comrades have already looked closely at all sorts of card devices, extremely not
intricate design. Although personally, I’m also very bored without tyrdos...
Cos> And it turns out that the ZX Spectrum 3+ is also a bad computer, it has it on board too
Cos> the disk system was attached.
Of course it’s bad, there’s no tyrdos :D
Hello, Black_Cat
4bit (something like AlCo 16C)
Hello fan
fan> color per point of interest
2bit per pixel? You would need 64k video memory. So that there is a 2nd extra. screen
pages over 128k (i.e. another 16x2 = 32k) paired with two existing Speck ones. When
In this case, an image is output from one pair, and the processor works with the second pair
to modify the picture, and then they change places. But this is all very pitchfork
by water..
Hello fan
fan> Point blank, I don’t understand why a converter is needed if you can do it right away
fan> VGA (Sync and let's say TapeOut is reassigned to Hor. & Vert.) .
Well, if you’ve already thought it through and even fits into the FPGA, then oh :).
Hello Costa
Cos> Why hang something that can be done right on the board
Then, to have a choice, and not to mold everything for all occasions, then NemoBus
exists.
Hello fan
fan> 4bit (something like AlCo 16C)
Perhaps for experiments to understand how it will slow down. And video RAM
So in general you need 128k.
Hello, Black_Cat
Bla> For versatility. For this purpose, NemoBus was invented to install
Bla> only what is needed, and not to mold everything for all occasions.
Well, your words sound strange. I didn’t suggest doing everything for all cases.
But only a beta disk with Tyrdos. It has become the de facto standard.
And you will have to attach it anyway, otherwise how will you load the programs?
How can I, for example, play UFO2 or watch demos, for example?
And it turns out that the ZX Spectrum 3+ is also a bad computer, it also has a disk drive on board
the system was attached.
Hello, Black_Cat
Bla> I wish I could install a flash now :)
Yeah, and according to you, they would limit users’ choices
those who don’t want a flush on board. Well, cat, well, fuck it. :)
Hello, Black_Cat
Bla> is the very last word. And then, why did they bring the bus to the connector?
Bla> Hang whatever you want on it.
Why hang something that can be done right on the board?
Well, think about what to do without Tyrdos? How to load the programs?
Hello Costa
Cos> ZX Spectrum 3+ is also a bad computer
No, they just made it a long time ago, now they would install a flash :) Now you can
imagine a pocket mp3 player with a flop? :) And before they would have done it that way. :)
Hello Costa
Cos> Why hang
For versatility. For this purpose, NemoBus was invented to install only what
necessary, and not to mold everything for all occasions. You need everything - wait for ATM-3.
Hello hero
No, not 128k of screen RAM, but 128k for 16k pages, each with
standard screen (to simplify). At the same time, have two screens of 4 bitplanes.
Of course, you can do the same in 64k (i.e. 1 standard screen in every 8k),
and move all sorts of system variables into the RAM of the processor unit,
duplicating one extra page there (there are 2 of them in the processor unit anyway)
extra) if the pins allow (i.e. the CPU allows access to the piece
16k-6.7k=9.3k, and deny access to the 6.7k screen memory duplicate - this is addressable
Let the space in the RAM of the video processor be used). Then in 128k you can do 8
place bitplans :), or 512x192x4bitx2screen.
Hello, Black_Cat
Bla> Perhaps for experiments to understand how it will slow down. A
Bla> video RAM generally needs 128k.
What are you pushing? I would like to get acquainted with the regime first. The mode can be created without
stopping the processor even at 3.5 MHz memory (but unfortunately you can’t put it in
existing clones). And mom, he eats 32K and not 128K. Think about how it will be
the mode works quickly with 128Kb of memory if the percentage per second manages to reach about 350Kb
throw.
Hello, Black_Cat
By pins - TapeOut is combined inside the matrix with SpeakerOut (in case
really want to save), the free pin is given to cancellation (or something
I like it better). Total, when using the firmware for VGA, TVRGB pins - Sync &
Blank transform into Hor.Sync. &Vert.Sync.
I don’t think it’s necessary to poke any connectors on the board (except for needles), mostly
because the board is not made for any specific case, as a result
All connectors will need to be mounted directly on the case.
Hello fan
fan> Yesterday I asked a friend from velesoft.speccy.cz without a password
fan> speccybob128.zip , oddly enough, he posted it :) This thing is his
fan> own innovation and not yet tested.
fan>
fan> If we get our hands on it, then we will have our own clone on the matrix as much as possible
fan> close to the original (with all the cheesecakes).
Can I take a look at these raw materials???
Hello, Make_Pic
Mak> Can I take a look at these raw materials???
Yes, no one removed them - http://velesoft.speccy.cz/other/speccybob128.zip
Hello, Make_Pic
Mak> Is this a joke?
Mak> In this schema file!
Judging by the quote, I gave exactly what you asked)
Everything else is still in progress.
The party's course is to finally get rid of A0 and A1 (but according to the latest information
It turns out that the cell phone of the processor eats up less if you slow down the processor, but
not a clump, but I hope that the braking will still be a clump, because it’s a pity for Maritsa’s pins
to give for this garbage).
Hello fan
fan> Yes, no one removed them -
fan> http://velesoft.speccy.cz/other/speccybob128.zip
Is this a joke?
In this schematic file!
Hello fan
fan> according to the latest information
where do the firewood come from?
Hello, The Exploited
200% turbo seems to mean finally without stops of the processor: v2_jawdr:
Hello fan
fan> From the firmware developer
the LVD developer made 200% turbo on the Pentagon, and specifically with the brake brake -
White won't work
Hello, The Exploited
The> developer LVD made 200% turbo on the Pentagon, and that's it
The> clog brake - the white won't work
Here the wait will go crazy, because everything is done practically from scratch. If instead of "tying"
clock brake, it will be possible to implement something more useful, for example
extended video modes (like color per point :D ;) ), then loss of pin under wait
won't be so scary :D.
Hello Lethargeek
Let> Moreover, “50Hz and analog TV boxes will all die tomorrow,” and
Let> there is no point in looking for 50-100Hz TFT.
I don’t understand anything %) How does this relate to this spec?
Actually, the video camera (from the closed section) has other tasks, not only to be
"adapter" spec-VGA for any spec, but also to be, first of all, for yourself
universal standard, 60Hz is more than universal.
Hello fan
Moreover, “50Hz and analog TV boxes will all die tomorrow,” and look for
50-100Hz TFT makes no sense.
Hello fan
Fan, do you want to replace the bottom buffer on the board in the UFO clone from DIP to planar with
by installing it at the bottom of the board, then you can save about 10mm in height and for
this account lowers the upper buffer and raises AY higher. That's what the wiring is there for
convenient, just below there will be space for LPT contact pads. And you also have
it says 21MHz, but think about it - suddenly it will reach 28MHz, because CMOS
processors in both Sprinter and GS were consistently 1.5 times faster - leave it like that
opportunity.
Hello fan
2fan: I'm sorry I haven't been here for a long time. Answering an old question - Chrome
I am connected via transistor switches via a scart to a TFT TV. TV
Samsung, 15'. I took it purely because of the number of holes in my ass :) -
composite+full scart+SVideo+VGA. The PC was cut through the VGA, chrome, as I wrote,
via scart. The TV perfectly maintains frame rate from 50 to 100 through the composite,
consequently, other inputs do not complain either.
Hello syd
Scheme and cheesecakes are attached.
File: speccy2007_v002_sch.rar http://zx.pk.ru/attachment.php?attachmentid=4537
File: speccy2007_v002_sources.rar
http://zx.pk.ru/attachment.php?attachmentid=4538
Hello syd
10X! And what is the ROM2 signal lurking there in the diagram?
Hello fan
fan> 10X! And what is the ROM2 signal lurking there in the diagram?
In addition to the usual firmware, there is also 48turbo installed there (to load taps faster),
can be switched (left ctrl + right alt)..
"+" on the additional keyboard tap starts at normal speed
"enter" - double speed
"-" - stops/continues
tap itself is transmitted via the serial port (for now)
Hello syd
Who else is involved in production? :v2_blush;
wish; to developers:
There are at least three fattening slots.
Judge for yourself.
1. memory mega nada (under RAMDisk)
2.IDE is also nada.
3. reserve
Hello, DimkaM
syd> In addition to the usual firmware, there is also 48turbo (to load taps
syd> faster)
Interesting approach. And the controller itself understands shamanic tape files with
quadruple download speed and special boot loading at normal speed
? (I once tried software that attached such boot files to dump files
.Z80, it turned out just great, no special firmware needed -
http://sblive.narod.ru/ZX-Spectrum/TurboTapeLoading/TurboTapeLoading.htm)
Dim> Who else would start production.
Dim>
Dim> wish to the developers:
Dim> There are at least three fattening slots.
Dim>
Dim> Judge for yourself.
Dim> 1. memory mega nada (under RAMDisk)
Dim> 2.IDE is also nada.
Dim> 3. reserve
What’s not to like about this - pentagon1024.narod.ru? ;)
Hello fan
fan> Interesting approach. And the controller itself understands shamanic tape
fan> files with quadruple download speed and special boot
not yet, because for the sake of simplicity I’ve only done work with tap files, there’s only
one speed.. I will support tzx then there will be.
I once had 48turbo in real life.. there the standard bootloader was changed (after
command "-" the speed of the bootloader doubled). here I am for him
I slip in a tap speeded up twice. but if you are using a non-ROM bootloader, then
then it won't roll...
Dim> wish to the developers:
Dim> There are at least three fattening slots.
Dim>
no, the idea here is to do everything at a minimum
Why go if there is a flash drive and everything on it?
Hello syd
COOL!!!
fan, I beg you, when everything is ready, write in more detail on how to assemble everything
Well, so that lamers and dummies understand
PLEASE!!!
After all, you have to raise Spectrums in Russia
Just imagine, if everyone can assemble a Spec for themselves, what then
will it start? :v2_devil;
PISI; will be lying in the trash heaps :v2_devil:
Hello fan
fan> What’s not to like about this - pentagon1024.narod.ru? ;)
In principle it suits me, but:
I don’t need the Beta Disk (in 2000 I threw out all the floppy disks :v2_frown; );
I also recently threw out the Speck keyboard (Sinus promised to take it away from me, but
he changed his mind)
If it doesn’t work out for you here, then we’ll take Pentagon.
Hello syd
syd> no, the idea here is to do everything at a minimum
syd> why bother if there is a flash drive and everything on it?
I apologize :v2_blush;
Apparently; I didn't read some of the posts
fan> What’s not to like about this - pentagon1024.narod.ru? ;)
In principle it suits me, but:
I don’t need the Beta Disk (in 2000 I threw out all the floppy disks :v2_frown; );
I also recently threw out the Speck keyboard (Sinus promised to take it away from me, but
he changed his mind)
If it doesn’t work out for you here, then we’ll take Pentagon.
Hello, DimkaM
So, as far as I understand, the support will only be for tape files.
Although, in principle, you can drive the computer to +3 (by adding all its ports), and
use the controller (in one of the modes) as hardware SPI for cards,
compatible with this thing - http://www.zxbada.bbk.org/zxmmc/, running
ResiDOS - http://www.worldofspectrum.org/residos/. ROM with support zxmmc -
http://www.worldofspectrum.org/zxplus3e/p3eroms.html
Hello fan
And if IDE by Nemo + GLUK
Will this work?!
Otherwise, without anything at all, it’s somehow sad.
(I kept waiting for you to finish your ANT-1024HD, but you gave up on it)
And the links you gave are of no use to me.
I only know how to solder irons, but I can only program them in 1C.
Hello, DimkaM
Well, I posted the links purely for the sake of example, for general presentation.
IDE by Nemo + GLUK + DNA OS requires mega brains.
Actually, I never intended to put anything into series because the demand is close to
zero (even if distributed at cost), as a result of which you can
calmly order the Pentagon.
Hello Lethargeek
FAN, please post all the information about the production of RESPECT: v2_wink2:
Hello fan
fan> How I should not like it...
fan> http://sblive.narod.ru/ZX-Spectrum/...ec48-Screen.gif
fan> ["http://sblive.narod.ru/ZX-Spectrum/...ec48-Screen.gif"]
I don’t know if this is still relevant or not, but here’s what I googled... I don’t know how much
This is close to the standards, but the pictures are beautiful.
http://www.retroleum.co.uk/PALTVtimingandvoltages.html
["http://www.retroleum.co.uk/PALTVtimingandvoltages.html"]
Hello MegaMyth
Meg> FAN please post all the information about the production of RESPECT
So there is nothing to post yet.
Meg> I don’t know if this is still relevant or not, but here’s what I googled... I don’t know
Meg> how close it is to the standards, but the pictures are beautiful.
Meg> http://www.retroleum.co.uk/PALTVtimingandvoltages.html
No, I was interested in how exactly the proprietary spec draws its screen. By
The description from the FAQ turns out somehow strange (IMHO).
Hello fan
Okay, but post it as soon as possible!
I really want to make a clone with my own hands :v2_smile:
Hello MegaMyth
Meg> http://www.retroleum.co.uk/...
By the way, he has an interesting sound card in the z80-project!
I wonder if it is possible to do something like AY/TS and SID emulation in one bottle?