-
The Ultimate Spectrum, made from old spectrumsGiven that all types of the Spectrum are less than ideal in one respect or another, I wondered what the ulimate refinement would be, but just using o…
... again!) to see if the floating bus mod had been done, it ... -
The Ultimate Spectrum, made from old spectrumsGiven that all types of the Spectrum are less than ideal in one respect or another, I wondered what the ulimate refinement would be, but just using o…
... again!) to see if the floating bus mod had been done, it ... -
yeah - unix for zx spectrumI started a new hobby project. An operating system for ZX Spectrum. A unix clone. Talked to my friend about it and he asked me what if after I'm done…
... version, including multi-colour support, floating bus and emulation of all Spectrum ... -
Was the +3 a missed opportunity?I just wanted to gauge WOS opinion on this. Do people think that the +3 was a bit of disappointment that didn't really advance the hardware as much a…
... of software that use the floating bus either :p -
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…
...
LDIR? failed (0x05)
Floating bus? failed (0xff)
Contended memory ... /> Contended IN? failed (0xfe)
Floating bus? skipped (B=0x01)
Contended ... /> Contended IN? failed (0x03)
Floating bus? failed (0x00)
Contended memory ... -
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 …
... of reads on unattached ports (floating bus/not)
[/LIST]
[*]We ... -
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 ... -
Emulating the 128KeIt occurs to me that I wasn't frequenting WoSf when I created the 128Ke standard, which means some people haven't heard of it. Here it is: [url]http…
... ]
+2A timings
Floating bus support (needed for things like ... -
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…
... compatibility bugs, such as the floating bus, which Amstrad naively "fixed" for ... -
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…
... =Encarnado;538579]Wasn't the bus buffers replaced by resistors like ... usually used for reading the floating bus was used for controlling the ... machines didn't support the floating bus either.
[quote]Adding ... -
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]
Weird ... believe those games used the floating bus.
[QUOTE=aowen;538599 ... -
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 must ... -
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…
[i]>sometimes 255, 255, sometimes 255, 56 and sometimes 56,255[/i]
it's [url=http://scratchpad.wikia.com/wiki/Floating_bus]floating bus[/url] issue. -
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]
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 ...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 (and that the floating bus value is read on the ...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 ...Spectrum DIVIDE and Kempston Interface ProbsI got my DIVIDE quite a while back and was using it on a Spectrum +3, but noticed some games loading corrupt and not all games having proper joystick…
... and soldering a wire for floating bus support so that games like ...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:/…
... connector
+ through ZX bus connector
- kempston port ... are unused = return part of floating bus value. PRINT IN 31 not ...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…
... everything else you return a floating bus value (see the FAQ or ... wiki for info on the floating bus) or just return 255 for ... temporary placeholder for implementing the floating bus, while you develop the emulator ...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 ...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 ...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 ...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 ... 7FFD is fast and data bus contain #FF (pull-up)
bus contain #FF (pull-up).
floating bus (if ula show border then ...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…
... 'll have to start implementing floating bus, flags 3+5 (MemPtr) and ...same game diffrent versionwhich games have diffrent versions of the same game
... -released when Amstrad broke the floating bus.....same game diffrent versionwhich games have diffrent versions of the same game
... -released when Amstrad broke the floating bus.....[/QUOTE]
Was the ...same game diffrent versionwhich games have diffrent versions of the same game
... -released when Amstrad broke the 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…
... 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…
... go as well. What about floating bus? Is that known to work ... ?[/QUOTE]
FLoating bus cannot work as there's ...
