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What Spectrum to choose?Hi i'm new to the Spectrum. I read 'bout it in CDA (Polish game magazine) and watched LGR review of the 48k and it REALLY interested me. What model m…
... games, cause if *fixes* the floating bus, which is only there because ... fix for the +2a/b/+3?
[IMG]http://www ...
"To make any +3 compatible with all software that ... read from the video data bus, by means of three-state ... -
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…
... have recently read that the floating bus fix means that a DivIDE ... better off starting with a +3 and "upgrading" the sound rather ... building a "back to the +3" board. -
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…
... 48K Spectrum +, and a Spectrum +3.
I also have ... that my +3 has been modified to fix the floating bus bug (not ... -
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…
... and install esxDOS
3) Get Guesser's Flash ROM ... the +2B sound mod, the floating bus mod, the joystick port mod ... commercial speccy software including the +3 disk versions. Technically the 128Ke ... and HiSoft BASIC +3), but since the +3 is the bastard child ... -
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…
... +2B sound mod, the floating bus mod, the joystick port ... mod, and the expansion bus mod.
3 disk versions. Technically the ... 3 won't work with a DivIDE+ (possibly because the floating bus ... What's the expansion bus mod? Also, are ... -
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…
... +3 won't work with a DivIDE+ (possibly because the floating bus mod ... deal with the +3 edge connector. The expansion bus mod restores the ... 128 instead of a multiface +3 for instance).
[ ... any definitive instructions for the +3 AY fix?[/quote]
... -
What model next ?Hi All I already have two 48k rubber kyed 48k Spectrums and a Grey +2 What to get next. ZX Spectrum + ZX Spectrum 128 Toast Rack ZX Spectrum +3
... obviously only tested on the +3 and suffer as a result ... +2A mode also (ram 0-3 is fast and ram 4 ... (ZX ignore reading and return floating bus). Ports acceleration can be also ... used as on ZX128+2A/+3 (A15=0,A14=1,A1 ... -
What model next ?Hi All I already have two 48k rubber kyed 48k Spectrums and a Grey +2 What to get next. ZX Spectrum + ZX Spectrum 128 Toast Rack ZX Spectrum +3
... ZX ignore reading and return floating bus). Ports acceleration can be ... for new replacement
3) connect on bottom side of ... (same as on ZX128+2A/+3)
- reading of port ... (same as on ZX128+2A/+3)
- new memory ... (same as on ZX128+2A/+3)
- I/O ... -
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…
... my +3 to bits (yet again!) to see if the floating bus mod ... -
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…
... my +3 to bits (yet again!) to see if the floating bus mod ... -
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…
... 0x8000 + 0x94fc
Machine type: +3
BIT n,(IX ... /> Contended IN? failed (0x03)
Floating bus? failed (0x00)
Contended memory ... br /> CB (00-FF) 5+3 ROM : 4B39 failed, expected 4D19 ... br /> CB (00-FF) 5+3 RAM : 1986 failed, expected 1B66 ... -
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 ... the later, far inferior +3 models.
The Timex ... -
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…
... /> [code];; Distinguish between 128K and +3 by looking at the partial ... 0x7ffd"[/code]
[quote]3. What is fusetest "testing for ... (and doesn't on the +3). Well known bug in the ... port on the +3 (and that the floating bus value is read on ... -
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…
... improve the compatibility of your +3 by putting 2 copies of ... 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 ... with A5=0
+ 3 layers PCB
- S ... 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…
... 'll have to start implementing floating bus, flags 3+5 (MemPtr) and others ... -
same game diffrent versionwhich games have diffrent versions of the same game
... -released when Amstrad broke the floating bus.....[/QUOTE]
Yes, I ... -released to work with the +3 / +2a. -
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…
... />
Don't believe the +3 diagnosis, this is because fusetest ... 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…
... . Thus, the CPU clock is 3.575 MHz and there are ... go as well. What about floating bus? Is that known to work ... ?[/QUOTE]
FLoating bus cannot work as there's ... -
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…
... Spectrum models except +2A and +3 because [URL="http://members.fortunecity ... /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:…
... Amstrad made in the +2A/+3. It's a shame about ... been the best since the +3 has the floppy controller :)
floating bus aren't features, they're ... -
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…
... a nice issue 2 Spectrum +3. I'm not sure if ... , is this the issue 2 +3?[/QUOTE]
Both Issue 1 ... games that need the floating bus on your +3 then yes... if not ... -
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…
... =Alien 8;599801]
The +3 in my experience is notoriously ... is there to do anyway? floating bus "fix"... what else?) -
Maritrini and Cray 5 loading problemsHas anyone else here had issues loading either of these on a 128k? No matter what I try, both these games refuse to load properly. I can get both t…
... pair gets put on the bus after an instruction fetch for ... +3 would be immune, since they don't have the whole floating bus ... -
Maritrini and Cray 5 loading problemsHas anyone else here had issues loading either of these on a 128k? No matter what I try, both these games refuse to load properly. I can get both t…
... ULA snow will appear. The +3 and +2a do NOT exhibit ... behaviour, EVEN when secaria's floating bus fix is implemented (a resistor ... -
Incorrect Spectrum +3 emulation: different results on Fuse and SpecEmuWhen developing and testing [URL="http://www.worldofspectrum.org/infoseekid.cgi?id=0027591"]Rotatrix[/URL], I noticed different results on Fuse and S…
... 0x800 + 0x94fc
Machine type: +3
Contention offset: 0x08
Contented IN... passed
Floating bus... skipped (B=0x01)
Contended ... /> [/INDENT]
Is it my +3 a "late timing" exemplar then? -
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…
... by Lemonize, which uses the floating bus effect to synchronize with the ... /> Since +3 and +2A models don't have the bus effect, I ... -
Definitive list of games incompatible with +2A/+3 and of compatible versions (if any)I am trying to compile the definitive list of games which are incompatible with the +2A and the +3 and of their compatible versions, if they are pres…
... of the games in list 3 to work? [url]http://www ... some things. Others rely on floating bus, so the D7 resistor mod ... for +2A/+3 could fix some of those ... which work on stock +2A/+3 so I'll end the ... -
Screen routinesHello. For my games I?m using the sprites routine method of a screen buffer and when I finish to print all the sprites I dump all the buffer in the …
... delay routine. Cobra uses the floating bus reads but it can also ... newly-drawn background.
3. Hope that these graphics routines ... -
Screen routinesHello. For my games I?m using the sprites routine method of a screen buffer and when I finish to print all the sprites I dump all the buffer in the …
... delay routine. Cobra uses the floating bus reads but it can also ... newly-drawn background.
3. Hope that these graphics routines ... my current understanding of the floating bus :-D
[IMG] ... .com/albums/n608/daveyboyhughes/bus-1.jpg[/IMG]
