Development of a NEW clone
ZXNet echo conference «hardware.zx»
Hello oistalker
ois> Is there an MMU planned? It would be nice to launch on such a promising one
ois> machine, the most advanced axis (I'm talking about Linux). Some kind, let
ois> an inferior arithmetic coprocessor would also be nice for
ois> floating point calculations.
Linux works just fine without an MMU. Only now it is designed for 32 bits...
Hello, Evgeny Muchkin
Evg> Because. at the moment there are only 2 people who have done something
Evg> and brought this something to a completed design. This is Kamil Karimov and
Evg> Roman Chunin. And that's it.
Well, not everything, but what about KOE and Pentagon1024?!
Hello, falanger
fal> IHMO HDD according to the scheme, for example NEMO, needs to be on the board like FDD.
I just wanted to say that maybe NEMO-HDD will replace it (not in
as an adapter HDD-CF) NEMO-CF/SD. NEMO-HDD pulled out of the slot, stuck
NEMO-CF/SD. Or provide the mother with the possibility of turning it off if it
built-in And make FDD built-in, just in case. :-)
Hello MegaMyth
Meg> but if you install a separate LCD with a resolution of 640*480
this is also why such a resolution is clearly redundant... I stand in solidarity with those who
for compact (pixel-wise) screens in new clones, if this reduces the cost of the hardware.
What Spectrum functionality do you base your design on? No answer
There is no point in designing for this question. If you want, let's arrange it here
poll...only in different options the expected one must be present
selling price.
Hello Lethargeek
Let> +1
Let>
Let>
Let> It would be very interesting to read your documents and compare our projects and
Let> their planned characteristics.
But you don’t need to say that... Yours, ours... Who is stopping us from uniting? ;)
Hello Romanich
Rom> But you don’t need to say that... Yours, ours.... Who’s in the way
Rom> unite?
The terms are conditional, you can put them in quotation marks. :)
I mean that I was pushing off from Speck, and you were doing tight pussy axels
I was working on it, some people are closer to game consoles...
Hello andrews
I don’t suggest porting Java to the z80, just take a ready-made port for ARM7, it
put it on a separate board as a “Java extender” with its local
memory and the ability to load it from shared external media via the z80 bus.
It will turn out like in the GBA, only there arm7+ is under Z80, and here z80+arm7.
Hello andrews
and> Your 640x480 tools will not be supported
and> development. If there were a set of tools that required something like this
and> permission existed, I would not doubt the correctness of yours
and> the concept of "big screens".
and>
What is the relationship between software and screen resolution? The software must work through the driver,
i.e. You need to write one single tool - a driver.
A screen that does not allow 80x25 characters in normal (i.e. readable, not
a weak-sighted 3x8 or 4x8) is familiar to no one in the world. On such a screen
only play with toys (which has been the case on the ZX from time immemorial).
and> 320x240 screens are widely supported by mobile applications - their
and> tens and hundreds of millions of pieces have been produced all over the world. Enough
and> porting to Java and Spectrum users becomes available to an abyss of ready-made ones
and> software. I can’t imagine what these 640x480 will bring except for the rise in price of hardware.
An abyss of toys (nerdy because Java)? I don’t even care about existing ones
is being played... And no one is porting Java - at today's amateur pace
development (one evening once a week) it will be a grandiose long-term construction, which
will end in nothing.You need to make a normal 80x25 text (even in graphics) screen and driver
standard terminal (for example VT52 and VT100) for it (which is much simpler
than Java), you need to set the mode to turn off the ROM from the address space (all
64k - RAM) and with a minimum of effort you will have CP/M, which is already a lot (thousands
professionally written programs). 8-bit on Z80 and without CP/M is nonsense.
And Java... You can try it later, if it doesn’t work or if it works
unsatisfactory in terms of performance (for sure) - well, “well, I couldn’t do it.” :)
Hello andrews
As for the performance of the z80 processor and the system as a whole, there is no
120 MHz will not help you beat even the Pentium90! To watch 320x240 video
you will have to install DSP or a ready-made hardware mpeg4 decoder on the programmable
logic...and to install the Java interpreter you will have to install ARM7. So
such a powerful overclocking is clearly pointless without taking into account how they will
the “expanders” are arranged, on which bus they will work.
Hello, acidrain
Your 640x480 development tools will not support it. If
If a set of tools requiring such permission existed, I would not
I doubted the correctness of your concept of "big screens". Reality is
is as follows (in the absence of powerful iron producers):
you give me a kit for assembly with a minimum of chips - I make a board using them
kitchen on the knee.
320x240 screens are widely supported by mobile applications - they have been released
tens and hundreds of millions of pieces all over the world. It is enough to port Java and
A wealth of ready-made software becomes available to spektrumists. What will these 640x480 give?
I can't think of anything other than making the hardware more expensive.
Hello, Error404
Err> What is the relationship between software and screen resolution?
the most direct thing :)... otherwise why be everyone there
Windows Mobile...the libraries all need to be changed...Laser Basic and others can’t
work with such a graphic screen...
Of course, I’ll say something seditious, but CP/M is not relevant today.
The new Spectrum is the best it can be; it’s an inexpensive multimedia and gaming device
computer, approaching relatively modern (-1 generation) consoles in
desktop, and when LCD (OLED) screens are turned on and portable, differing from
(some of them) for the better by the possibility of a database for storage
gaming and multimedia content. This is exactly what you need for creativity.
Trying to turn it into a computer for closed corporate networks can also
be fruitful. What can CP/M be used for today? Text only
The screen is only needed by journalists (to read books, magazines and newspapers without graphics
not interesting either). Of course, you can use it as a terminal, but how many
That's how it's used. A line of 40 characters is not that big
limitation when it comes to titles of compositions, titles of books, etc.
Hello andrews
and> this is also why such permission is clearly redundant...
No, not too much! How long can you develop software on PC due to the fact that
You don’t want to break your eyes and there’s not enough information on the screen? It's time to think about yourself, without
Without unnecessary body movements, you will be able to work comfortably on the spec. No need
limit yourself, these are not the times! Sinclair used to save on everything and
I made such a “color” spec screen, then after all (spec on the M68K processor) that’s all
fixed it! Gentlemen, think before you build concepts.
And there is no need for these topics here! Sentences other than "let's talk to a couple more
weeks, we will arrange a survey, which will not give results (since surveys are compiled
extremely incorrect) and we’ll forget about this topic as soon as another one appears”
will follow?
MMU has already been proposed. Interrupt manager? Memory limitation (1-4GB). New
Video Controller, maximum of everything external (extension cards)...
Hello MegaMyth
Again they sculpted an under-RS...
Give at least 1 justification why they are needed
such modes and frequencies.
And not based on what you want...
And if there is an objective perspective of the transition
on modern LCD monitors, why is this
does it mean the need for a “new screen” on the spec?
Resolution 320x240...I made it for myself.
Why? First, no one came forward to defend
old border, i.e. now he can't be
acquitted. Second - when expanding memory to 256k
additional hardware cost for expansion
screen - one or two microcircuits.
Hello MegaMyth
"Do you understand that the counters of different clones are reset and loaded by different
constants"
It can be divided into pages...
And this was not significant. Program
clumsy and so on... well, even more varieties of clumsy :)
Hello ASDT
ASD> How the counter counts... Which area
ASD> the horizontal/frame pulse will fall out, so it will be...
Do you understand that counters for different clones are reset and loaded differently?
constants, and that the same mode, for example, will not work on Pentagon or Kay
Hello ASDT
Well, there was a similar joke from AlCo called 384x304, it’s even something for this purpose
implemented, also a principle similar to what you described
Hello, DIMA 1
DIM> And why is everything quiet????? And Spectrum will not appear at 24 MHz and higher ????
“give me $999K, and you’ll have a Spectrum at least at 100MHz” (c) :)
Hello, WingLion
Win> "give me $999K, and you will have a Spectrum at least at 100MHz" (c) :)
+1
Hello, WingLion
And why is everything quiet????? And the Spectrum will not appear at 24 MHz and higher????
Hello, WingLion
Win> "give me $999K
just that???