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zesarux emulator > pc keyboard mappingSorry that this is so trivial but I cannot find the "=" key which is fairly important
... slices and and the Spectrums floating bus.
The program by ... unusable due it's borked AY setup however the latest version ... might have had a usable AY facility.
I ... -
ANN: Spectaculator 2.5 available for downloadHi. I've just released a new version of Spectaculator, available from [url="http://www.spectaculator.com/"]http://www.spectaculator.com/[/url]. Hopef…
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Emulation
- Floating bus emulation as per Ramsoft technical ... -
Emulation accuracy and how it affects softwareHi folks. I was thinking of bodging together a rudimentary Spectrum emulator myself, not as a competitor to the other emulators, but as an integrate…
... /> Hardware quirks such as the 'floating bus' effect will also be absent ... -
ANNOUNCE: Fuse for Mac OS X 0.7.0Following the release of Fuse 0.7.0 is the unsurprising release of Fuse for Mac OS X 0.7.0 which should be available for download shortly at the Fuse…
... /> + Much improved contended memory and floating bus emulation.
+ Improved display timings ... -
(Belated) ANNOUNCE: Fuse 0.7.0 and libspectrum 0.2.2 releasedThe Fuse team is pleased to announce that release of Fuse 0.7.0, the associated utilities and version 0.2.2 of the Spectrum emulator support library,…
... /> + Much improved contended memory and floating bus emulation.
+ Improved display timings ... -
ANN: SpecEmu 2.3 - Minor UpdateHere's a minor update to the SpecEmu emulator - the emulator with an incredibly small filesize for a Win32 application, and backed up with an incredi…
... opcode contention timings.
- Improved floating bus emulation.
- A 1 cycle ... -
A few questions regarding EmuZwinA few questions regarding EmuzWin 1. I have been trying to write a program to generate multicolour effects on the Spectrum,ie more than 2 attributes…
... works ok.
4. Floating Bus implementation. I use this to ... -
A few questions regarding EmuZwinI had posted this in the development forum and then remembered there was an emulators forum, so apologies for the repetition. 1. I have been trying …
... works ok.
4. Floating Bus implementation. I use this to ... -
Problems with games on +2AHi! I have a +2A now and have problems running some games on it. I tought the resistor fix (to give it some kind of "floating bus" as the original 4…
... give it some kind of "floating bus" as the original 48k and ... -
Hardware GuideI was thinking this might make a good sticky... [b]Service Manuals[/b] [URL="ftp://ftp.worldofspectrum.org/pub/sinclair/technical-docs/ZXSpectrum48K…
... /floatingbus.html"]The Floating Bus Explained[/URL] -Info about the Floating Bus and the ... -
Fuse 0.8.0.1 releasedI have just uploaded version 0.8.0.1 of the [url=http://fuse-emulator.sourceforge.net/]Free Unix Spectrum Emulator[/url] to SourceForge and WoS, wher…
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* Fix IN timings and floating bus behaviour.
* Fix widget UI ... -
Fuse for Mac OS X 0.8.0.1A bug fix version of Fuse for Mac OS X has been released soon or already here at WoS and at the dedicated sourceforge project: [url]http://sourcefor…
... ]
[*] Fix IN timings and floating bus behaviour.
[*] Fix crash if ... -
Harlequin ZX Spectrum Clone now 100% compatible!Hi all! The Harlequin ZX Spectrum clone now shows full timing compatibility with the ZX Spectrum! 8-) Both the ULA IO and memory contentions are fa…
... /> along with contended and uncontended floating bus reads.
Full details ... -
RUSSIAN SOFTWARE and real ZXRussian ZX games is writed on russian ZX clones and support hardware feature TURBO OFF ( for ZX clone ZS SCORPION ). Russian ZX clone ZS SCORPION use…
... and CPU read data from floating bus ( value #FF ). Software TURBO switching ... will ZX crash (data from floating bus is writed to paging port ... to paging port data from floating bus (can't be use)
floating bus (can't be use)
IN 255 behaviour not emulated in Spectaculator and ZXSpinI'm not speaking about "normal" IN 255 behaviour. All of you know what I'm taking about: IN 255 can be used to "read" screen data as it's retrieved f…
... -A15 during an I/O bus cycle.
What I ... Z80 wants to initiate a bus cycle that might affect contended ... Z80 can only read FFh (floating bus).
Convinced myself about ... only contends the I/O bus cycle if A8-A15 falls ...Sinclairean A3[B]Sinclairean[/B], a new ZX Spectrum emulator written in machine code for x86-compatible, OpenGL-capable computers. Features: [LIST] [*]Fast machin…
... memory not emulated yet
[*]Floating bus not emulated yet
[*]Quick ...JSpeccy: New emulatorHi there, Jos? Luis S?nchez (zx81 at ono dot com) has developed a new ZX Spectrum emulator in Java, with a very accurate Z80 emulation. The message …
... emulation (Uridium, Overscan Demo)
- Floating bus emulation (Arkanoid, Sidewize)
- Speaker ...IM2 Loading on +3EHi there Speccy Guru's, As some of you know, I've spent a while building the ultimate image for +3e, it's currently at 6000+games and demos and i've…
... 's not due to the floating bus, maybe the real hardware changes ...Tricks with IN 31It's generally considered unwise to use a Kempston joystick's fire button to start a game, because the floating bus effect can make arbitrary data ap…
... start a game, because the floating bus effect can make arbitrary data ...Contention detectionJust a thought, based on discussion elsewhere... Is there any way of telling if reads/writes are being contended around the time that they happen? L…
... .
There's the floating bus method, for telling whether the ...Shadow ROM partial decoding not implemented in emulatorsOr at least, not implemented in Spectaculator, and it seems that not in Fuse too. [URL="http://www.speccy.org/foro/viewtopic.php?f=8&t=408&start=53"…
... from the main ROM, not floating bus (ULA/FFh), of a mirror ...ZX Spectrum 48K clone and test resultsHi! This is my first post, so, first of all, I'd like to say hello to the whole community! I am Alessandro Dorigatti from Italy and I'm developing …
Timing of Timex Computer 2068Is the timing of the Timex Computer 2068 fully documented yet? I have one here with the ZX Spectrum Emulator cartridge and have downloaded a few test…
... on the Timex not a floating bus. I'm wondering how to ... only part of the SCLD bus is coupled to the Z80 ... bus via resistors. I have seen ...Enable 128kB paging in emulatorFrom Zx Spectrum documentation ([url]http://www.worldofspectrum.org/faq/reference/128kreference.htm[/url]) [CODE][SIZE="1"]When memory is being pag…
... 0x7ffd produces no special results: floating bus values will be returned as ...Tricky ZX RepairHello guys, This time I put my hands on a very nice Issue 3 16K, upgraded to 48K. To bertter explain "nice", it is absolutely mint, not a scratch on…
... to switch on the scope. Floating bus seems to behave okay. DMM ... 's nothing else on the bus. Logic levels on the Z80 ...****ing Awesome Spectrum Engine (FASE)This is a new engine (sprites, tiles, map) for all ZX Spectrum machines. The engine set ups a runtime enviroment that leave between 24K and 30K byt…
... diferent implementation for each machine (floating bus in 48K, shadow screen in ...Using even ports for input?I've been looking for unused ports to use with my clashbasher interface. I understand that the spectrum only considers A0 when decoding its input p…
... high byte of the address bus is used to select ... be any contention on the bus because that's the ... on a spectrum with a floating bus it should be fine shouldn ... through contention on the data bus? Are there othere models of ... having done away with the floating bus.Port $28FF. Why 28?Testing floating bus behaviour for ZXUno, I've found that both Cobra and Arkanoid use this specific 16-bit port: $28FF. What is so special about putt…
Testing floating bus behaviour for ZXUno, I've found that both Cobra and Arkanoid use this specific 16-bit port: $28FF. What is so special about putting the value $28 in A15-A8 during a read to $FF?
Thank you very much in advance! :)New test for finding missing +2A/+3 ULA timing detailsHello, having added the +2A/+3 emulation recently, I want to make sure I got the ULA timing 100% right. We know when the contention pattern starts, …
... the screen bytes. Obviously the floating bus can't be used to ...Smokin... more 48k woesHi, it looks like I've converted another Spectrum 48K+ into a smoke machine. I'd been rebuilding an Opus Discovery unit and everything looked good. …
... , as is the NMI and floating bus. The ROM checksum is also ...
