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Kempston mouseOriginal 3 button one in working condition. If you are willing to sell me a one, please contact me. Thanks.
... button port are unusable, return floating bus values (FF or different screen ... /bad design...
But in russian ZX scene is very ... russian ZX user use mouse. In Czech republic is kempston mouse ... -
So what is the best Spectrum?I've had a search and even though i can remember a similar thread somewhere I'll twist it a bit. Whats the best "unmodified" Spectrum? (modification…
... to type on), and built-in tapedeck. Heavenly. It even retained ... compatibility bugs, such as the floating bus, which Amstrad naively "fixed" for ... -
This might be something new[img]http://www.711chan.org/test/src/130427925559.png[/img] Have a look at this screenshot of my emulator ZX82. Notice the copyright message? That's…
... computer, not the Z80. Floating point routines, the calculator, ... will (eventually!) be implemented in C on the host computer.[/quote ... SpecBAS will run programs written in Sinclair BASIC, but there' ... that. Implementing X80 support in an emulator would also be ... -
So what is the best Spectrum?I've had a search and even though i can remember a similar thread somewhere I'll twist it a bit. Whats the best "unmodified" Spectrum? (modification…
... t the bus buffers replaced by resistors like in ZX ... It wouldn't have helped in any case as port # ... used for reading the floating bus was used for controlling ... machines didn't support the floating bus either.
[ ... that can be used in place of the ROM ... -
So what is the best Spectrum?I've had a search and even though i can remember a similar thread somewhere I'll twist it a bit. Whats the best "unmodified" Spectrum? (modification…
... machines didn't support the floating bus either.[/QUOTE]
... believe those games used the floating bus.
[QUOTE= ... a Timex 3000 in Timex USA, but in Portugal there was ... , Timex FDD connectivity, built-in Timeword word processor, CP/M ... -
So what is the best Spectrum?I've had a search and even though i can remember a similar thread somewhere I'll twist it a bit. Whats the best "unmodified" Spectrum? (modification…
... believe those games used the floating bus.[/quote]
They ... a Timex 3000 in Timex USA, but in Portugal there was ... network, Timex FDD connectivity, built-in Timeword word processor, CP/M ... could easily have been built in Scotland and shipped to ... -
GUI/OS for the Spectrum?Hi, Is anybody working on a WIMP/GUI system for the Spec? Is there anything current out there? [url]http://snakeoillabs.com/wordpress/2005/10/30/8…
... ://scratchpad.wikia.com/wiki/Floating_bus]floating bus[/url] issue.[/QUOTE]
in a CPLD.
[url ... -
GUI/OS for the Spectrum?Hi, Is anybody working on a WIMP/GUI system for the Spec? Is there anything current out there? [url]http://snakeoillabs.com/wordpress/2005/10/30/8…
... back?
To avoid floating bus problems you can read a ... do as the prototypes already "in the wild" don't do ... -
128K Contention - How to get it right?With my recent hardware hackery, I've built a 128K (toastrack) clone. I can't quite get the contention right though. What I'm lack is a clear descri…
... the +3). Well known bug in the 128K ULA.
floating bus value is read on the ... is that the "bug" fixed in later Amastrad models?[/quote]
128K Contention - How to get it right?With my recent hardware hackery, I've built a 128K (toastrack) clone. I can't quite get the contention right though. What I'm lack is a clear descri…
... . The value written is the floating bus value, which means that unless ... up writing 0xff, thus paging in page ROM 1 and RAM ... a useful configuration to be in!general beginner queriesHi, I bought myself recently a +3 and a devide extension. I was not in touch before with the speccy, but I am really surprised and delighted about th…
... will have the longest interface in the world, I guess...
in playing them by joystick or ... you asked the same questions in Forum64, even if you used ... in mind. Ana a further advantage is that it fix the "floating bus ...general beginner queriesHi, I bought myself recently a +3 and a devide extension. I was not in touch before with the speccy, but I am really surprised and delighted about th…
... you asked the same questions in Forum64, even if you ... in mind. Ana a further advantage is that it fix the "floating bus ... br /> - fix stability of data bus with IM2 vector
- ... designed for sinclair joystick support (in future - need different firmware ...general beginner queriesHi, I bought myself recently a +3 and a devide extension. I was not in touch before with the speccy, but I am really surprised and delighted about th…
... you asked the same questions in Forum64, even if you used ... in mind. Ana a further advantage is that it fix the "floating bus ...NEW KEMPSTON interface for ZXHi. Lotharek has released a new KEMPSTON interface for people who doesn't need AY on-board and want to have some really small device. [url]http:/…
... -up resistor in joystick connector
+ through ZX bus connector
floating bus value. PRINT IN 31 not return clear ... need D5-D7 in log.0 state or in sobe games writen ...writing an emulator-newbie needs helpHi, this is my first post here. I decided to write a minimalistic emulator of ZX Spectrum-no emulation of advanced peripherals, no emulation of sound…
... As someone else said earlier in the thread, it would ... inefficient to use arrays in this way. Just decode ... hardware does, in your implementations of the IN and OUT instructions ... temporary placeholder for implementing the floating bus, while you develop the ...C# questionAny C# coders here? Maybe people experienced in Java and other modern languages could also help me? I could use some advice. It is about modern PC c…
... I could do it all in one form by changing visibility ... I don't want multiple floating windows.
Maybe there ... /> so what i would do in java is creating several forms ... .
makes it sense in C# ?writing an emulator-newbie needs helpHi, this is my first post here. I decided to write a minimalistic emulator of ZX Spectrum-no emulation of advanced peripherals, no emulation of sound…
... correctly returning 255 (or a floating bus value) for the port reads ... detects the kempston early on in it's initialisation, roughly as ... And will therefore screw up in the manner described when loaded ... no kempston support. That bitfield in the Z80 header is an ...writing an emulator-newbie needs helpHi, this is my first post here. I decided to write a minimalistic emulator of ZX Spectrum-no emulation of advanced peripherals, no emulation of sound…
If your emulator supports the floating bus, you can try the first ... see the bat in Arkanoid, your problem is in the screen redraw ... />
The problem in your emulator ins't in the Z80 core ...Emulation of ZX Spectrum 128+2 (grey)Please read this thread: [url]http://www.worldofspectrum.org/forums/showthread.php?t=35523[/url] result: exist 3 (or more) versions of grey ZX Spect…
... Reading from 0x7ffd returns the floating bus value, so with some clever ... area then IN 7FFD is fast and data bus contain #FF ... read videoram, CPU continue in reading but data bus contain #FF (pull ... /> IN 16381 is fast adress of paging port and read floating bus ( ...writing an emulator-newbie needs helpHi, this is my first post here. I decided to write a minimalistic emulator of ZX Spectrum-no emulation of advanced peripherals, no emulation of sound…
... implement any of unofficial instructions in the first version of my ... instructions were rather exceptional while, in fact, at least three of ... are [i]everywhere[/i] in the majority of the games ... 'll have to start implementing floating bus, flags 3+5 (MemPtr) ...writing an emulator-newbie needs helpHi, this is my first post here. I decided to write a minimalistic emulator of ZX Spectrum-no emulation of advanced peripherals, no emulation of sound…
... less wrong than assuming the floating bus supplies $ff all the time ... assuming the first few bytes in the ROM are whatever they ... used to terminate ISRs while in IM2 mode.
... and four cycles in said shortcut is compelling in some circumstances but ...same game diffrent versionwhich games have diffrent versions of the same game
... ).
Both versions are in the archive iirc.
floating bus.....same game diffrent versionwhich games have diffrent versions of the same game
... ).
Both versions are in the archive iirc.
floating bus.....[/QUOTE]
Was the ...same game diffrent versionwhich games have diffrent versions of the same game
... ).
Both versions are in the archive iirc.
floating bus.....[/QUOTE]
Yes, I ...What paging scheme is the "standard" for 128K models?Sinclair implemented an arrangement so that even numbered pages are non-contended, and odd numbered pages are contended (quoting from memory, haven't…
... model by checking the paged in bank against the BANKNM sys ... go as well. What about floating bus? Is that known to work ...What paging scheme is the "standard" for 128K models?Sinclair implemented an arrangement so that even numbered pages are non-contended, and odd numbered pages are contended (quoting from memory, haven't…
... put some logic probes in the machine, merely INT ... as well. What about floating bus? Is that known to ... work?[/QUOTE]
FLoating bus cannot work as there' ... contended and uncontended memory. IN 255 always returns 255.< ... 't find it in the fusetest directory...Kralizec, a MSX development group, publishes "MajiKazo" for ZX Spectrum[youtube]wJI30FyT7Qw[/youtube] It's a port from a MSX game called [URL="http://www.generation-msx.nl/msxdb/softwareinfo/3449"]MajiKazo[/URL] release…
It seems it's still in a debugging state so the ... play with it.
In the other hand, it is ... /shirka/LIBROS_EBOOKS/MANUAL_ESPECTRUM/floatingbus.html"]floating bus[/URL].What was the best Designed Speccy???So what does the World Of Spectrum think the best Designed Spectrum was? [URL=http://imageshack.us/photo/my-images/845/thespectrums.jpg/][IMG]http:…
If you mean in terms of the hardware ... p
Fixes the error in the audio that Amstrad made ... in the +2A/+3. It' ... Sinclair machines are all awful in terms of build quality ... like the floating bus aren't features, they're bugs in sinclair's ...Spectrum +3, Issue 2...I have just had plonked on my desk a nice issue 2 Spectrum +3. I'm not sure if its 100% working yet, as I have not plumbed it into a telly. So, assu…
... motherboards have the design flaw in the AY circuit. The "+3B ... I need to apply the IN #FF fix to increase compatibility ... the games that need the floating bus on your +3 then yes ...Use a +2/+3 case as a replacement keyboard for 48KI was just wondering if a 48K Spectrum motherboard could be housed in a +3 case, and somehow the keyboard be connected so that it could have a proper…
... 8;599801]
The +3 in my experience is notoriously incompatible ... is there to do anyway? floating bus "fix"... what else?)
