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DIVIDE PLUS - ZX bus protectorI make new ZX BUS PROTECTOR for use with DIVIDE PLUS interface. This is very small "convertor" for connection to new ZX BUS connector. PCB contain on…
... variants for soldering PCB. I can sell complete ZX- ... other old interface with incomplette ports decoding
-enable ... - enable connect any interface as I/O ports only
- external device ... other old interface with incomplette ports decoding
- all ... -
Recent talk of developing new SpectrumsHi all, I can see from a few threads on here that some Wossers like Vasil and Aien 8 are interested in developing more powerful Spectrums or improvi…
... though.
[quote]I've never heard of any ... that they use certain I/O ports for certain things and the ... wants to use 32,768 ports for addressing the ULA, ... 16,384 ports for something else, 8, ... 192 ports for something else, and ... -
Recent talk of developing new SpectrumsHi all, I can see from a few threads on here that some Wossers like Vasil and Aien 8 are interested in developing more powerful Spectrums or improvi…
... chip into a Spectrum, but I don't think it can ... - it only needs two Z80 I/O ports, and all the required signals ... -
T/S 2068 & SpectrumBorrowing what you see below from the Timex Sinclair 2068 Beginner/Intermediate Guide, by Fred Blechman. It appears the T/s 2068 was intended to be …
... is proper I/O decoding. The Timex has 65535 available I/O ports, of which ... software under the Timex category I could upload the set of ... -
Memory upgrade for ZX Spectrum 16/48This is external memory upgrade for ZX Spectrum models with 16kB ram. Can be connect also to 48kB models, but need remove 8 dram chips (from sockets …
... /> [*]I/O ports decoding (ideally describing any [I]partial decoding[/I])
[*]I/O port [I]behaviour[/I] ( ... /> [*]Handling of reads on unattached ports (floating bus/not)
[/ ... though.
What I'm [I]really[/I] interested in getting working ... -
Memory upgrade for ZX Spectrum 16/48This is external memory upgrade for ZX Spectrum models with 16kB ram. Can be connect also to 48kB models, but need remove 8 dram chips (from sockets …
... the 2.1 rom I think that when I asked about 128k ... compatability it was posted that I'd need the 2.2 ... 128 rom ? Or use bad I/O ports ?
My upgrade can use ... -
Memory upgrade for ZX Spectrum 16/48This is external memory upgrade for ZX Spectrum models with 16kB ram. Can be connect also to 48kB models, but need remove 8 dram chips (from sockets …
... 128 rom ? Or use bad I/O ports ?
My upgrade can use ... with interfaces).[/QUOTE]
I'm not sure tbh, all ... I remember is that it worked ... ;highlight=opus[/URL]
I started a thread ages ago ... -
DivIDE questionsHi All, I'm the proud owner of two DivIDE interfaces, that I have just "inherited" from a friend. One of them is the original one and the other one …
... like to mention I have nothing against either device, ... particular interest in them as I have no need for such ... of the fact that unused I/O ports on the spectrum are basically ... -
DivIDE questionsHi All, I'm the proud owner of two DivIDE interfaces, that I have just "inherited" from a friend. One of them is the original one and the other one …
... the lack of any free ports on the Spectrum ![/quote]
ports if you're willing to ... stealing a large range of ports. For example, the ULA is ... address, so each of the I/O ports only use up 256 possible ... -
DivIDE questionsHi All, I'm the proud owner of two DivIDE interfaces, that I have just "inherited" from a friend. One of them is the original one and the other one …
... a throughport
* choice of I/O ports
* hardwired ROM traps
ports. Not sure if the last ... -
DivIDE questionsHi All, I'm the proud owner of two DivIDE interfaces, that I have just "inherited" from a friend. One of them is the original one and the other one …
... . Only the old ones. When I was buying a new one ... throughport.[/QUOTE]
Nice. I expect the logic can be ... even a different set of I/O ports. It's an open design ... I'll get the cabal to allocate the required number of ports ... -
AY Magic version for ZX81 was bornModified Ay magic ,my previous interface for zx48. On board, ay chip based on Zonx interface but with stereo output and rampack 16 or 32 kilo on boa…
... would make it even better. I'm going to have to ... revisit the old topic I started a long time ago ... how complicated it would be. I do remember Gasman saying the ... to do is change the I/O ports to match whatever the ZX81 ... -
AY Magic version for ZX81 was bornModified Ay magic ,my previous interface for zx48. On board, ay chip based on Zonx interface but with stereo output and rampack 16 or 32 kilo on boa…
... *********
Well, not really, however I wouldn't start from such ... VortexTracker procedure ported to ZX81 ports + *.p file output (with ... player). :)[/QUOTE]
I think you're missing my ... table. And unless I have the AY's I/O ports, you won't ... -
AY Magic version for ZX81 was bornModified Ay magic ,my previous interface for zx48. On board, ay chip based on Zonx interface but with stereo output and rampack 16 or 32 kilo on boa…
... you're missing my point. I need the AY clock frequency ... code to the ZX81. Unless I have the AY clock speed ... I can't generate the correct ... table. And unless I have the AY's I/O ports, you won't ... />
yes, that's what I meant. -
ZX systems on PC FDD! (TRD,Opus,D40/D80...)Hi. A friend suggested me a program that can force PC's FDD (even on the newest systems) to format and save programs of ZX Spectrum. Seems like it …
... rom chip can access to I/O ports of FDD controller. Exists also ... DIVIDE interface or MB02+... (Similar I/O emulation is used in old ... -
Add horizontal hardware scroll to ULA+In this case we must read a bit in the ULA+ for test if supported. And the future software that uses it must have to branch: 1. If hardware scroll i…
... more... as easy as that. I see no reason why not ... add on chip accessible through I/O ports so that it can be ... -
Add horizontal hardware scroll to ULA+In this case we must read a bit in the ULA+ for test if supported. And the future software that uses it must have to branch: 1. If hardware scroll i…
... add on chip accessible through I/O ports so that it can ... decide. In my case I am only interested in horizontal ... hw scroll. I want to do a little ... scroll and shadow screen. I will patch my emulator to ... to implement in CPLD I will share all the ... -
Add horizontal hardware scroll to ULA+In this case we must read a bit in the ULA+ for test if supported. And the future software that uses it must have to branch: 1. If hardware scroll i…
... more... as easy as that. I see no reason why not ... add on chip accessible through I/O ports so that it can be ... -
Weird issue with 128 Heatsink and IF2 cartI came across a weird issue with one of my 128K heatsink spectrums.... First of all i burned Paul Farrow's 128K RAM tester v 2.06 on a 27C128 eprom …
... (perhaps ones that work via I/O ports), I'd have a look at ... -
The SAM CoupeDoes anyone own one of these? I remember being jealous of a friend who bought one of these machines which had a disk that made the system compatible …
I am also SAM user :) SAM ... graphic modes, colour palette, full ports adressation, extended memory, programmable interrupt ... are connect to next I/O ports. Keyboard ports, ula ports (border, tape recorder - mic ... -
converting ZX128 software for SAM COUPESAM COUPE is computer compatible with ZX48 model. Use same ports, same keyboard with compatible membrane, 64kB adress space with possibility connect …
just a question: on which i/o ports can we access SamCoup? palette ... from our zx-spectrum code? i recently added ULAplus support on ... /post2779.html#p2779[/url] ) , and i also wanted to add SamCoup ... -
converting ZX128 software for SAM COUPESAM COUPE is computer compatible with ZX48 model. Use same ports, same keyboard with compatible membrane, 64kB adress space with possibility connect …
... ]just a question: on which i/o ports can we access SamCoup? palette ... from our zx-spectrum code? i recently added ULAplus support on ... /post2779.html#p2779[/url] ) , and i also wanted to add SamCoup ... -
Creating a new game - AssemblySo... finally I?m studying Assembly Z80... after 36 years. :) Well... it?s sooooooooooooo hard to make a game using Assembly? I bought a book (Spectr…
... QUOTE=Turrican;593542]So... finally I?m studying Assembly Z80... after ... a game using Assembly?
I bought a book (Spectrum Machine ... Code for Absolute Beginner) and I want, after all the ... memory, and reads and writes I/O ports, to do something useful. And ... -
I/O port adress map of Spectrum and interfacesI'm looking for an adress map of all the used and unused I/O ports for the ZX-Spectrum. Many years ago I designed an I/O board for the Spectrum that…
[QUOTE=Knik;619931]I'm looking for an ... all the used and unused I/O ports for the ZX-Spectrum.
I/O ports. (see "Background" at [URL] ... use to query the freebase I/O port database here [URL] ... number is in hex - i.e. to see what you ... -
I/O port adress map of Spectrum and interfacesI'm looking for an adress map of all the used and unused I/O ports for the ZX-Spectrum. Many years ago I designed an I/O board for the Spectrum that…
[QUOTE=Knik;619931]I'm looking for an adress ... all the used and unused I/O ports for the ZX-Spectrum.[/QUOTE ... /Comp/Spectrum/Hardware/8_Ports]Hardware Ports[/url] which is a compilation ... [/url] is the list of ports I've put together for my ... -
I/O port adress map of Spectrum and interfacesI'm looking for an adress map of all the used and unused I/O ports for the ZX-Spectrum. Many years ago I designed an I/O board for the Spectrum that…
... say, you have two I/O addresses, one of which ... addressing logic for all your I/O ports. This slows things down ... you basically get 256 ports for the price of ... one of your 256 i/o ports alert the speccy to ... needing a huge number of I/O addresses (which is good ... -
I/O port adress map of Spectrum and interfacesI'm looking for an adress map of all the used and unused I/O ports for the ZX-Spectrum. Many years ago I designed an I/O board for the Spectrum that…
... of that.
I even thought of making a ... with that principle using 4 I/O ports.
1 for the ... to work reliably.
I tried it with SRAM (early ... is also possible to attach I/O ports, up to 65536.
... 8 Bits I/O, output is latched.
I use 3 ... -
Outrun Europa in colourSwainy suggested that he'd like to try his luck with Outrun Europa colorful graphics and see if they can be improved. Let's give him the chance :) A…
... /> The details are in the I/O ports section:
[url]http://scratchpad ... .wikia.com/wiki/ZX_Spectrum_64_Colour_Mode#I.2FO_Ports[/url]
There ... -
PZX on WOS ?Is the PZX format accepted on WOS, at least for new production ? (Sorry, if this is wrong section, it looks to me as most suitable for the question.)
... country.[/quote]
Oh I quite agree. The creator of ... quote]
Well yes. I've always been impressed by ... a vast number of usable I/O ports as opposed to "none at ... files directly.[/QUOTE]
I disagree. Block compression is optional ...
