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Contention and floating bus timingHello, I was recently playing a bit with memory contention and floating bus stuff in ZXDS and there is one thing which puzzles me a bit. It is the d…
... bit with memory contention and floating bus stuff in ZXDS and there ... seem to appear on the floating bus.
To be ... ?). However, as far as the floating bus is concerned, the very same ... .html"]tech doc[/URL] about floating bus.
Ramsoft's [URL=" ... -
Pentagon floating bus timingI wanted to take a little break from working on the ZXDS UI yesterday, so I added support for Pentagon timing instead, so I can finally enjoy the lik…
... and exact info about the floating bus behavior and timing. An explanation ... -
Floating bus on 128K models[b]Background:[/b] i need run code with interrupt enabled but i need use stack instruction to maximize performance in copy/shift/mirror routines. dur…
... /> questions are:
1) is floating bus present on all of 128 ... -
Emulating a +2A with floating bus modBefore I start hacking Fuse's source... Does any existing emulator have an option to behave as a +2A with the [URL="http://www.secarica.ro/html/plus…
Before I start hacking Fuse's source...
Does any existing emulator have an option to behave as a +2A with the [URL="http://www.secarica.ro/html/plus3_hardware.html#inFFport"]floating bus modification[/URL]?
-Stephen -
Spectrum +2A floating bus portHi As I discovered in the past, Spectrum +2A (and probably +3) do have floating bus port. But it is not shown on all unused ports, only on some po…
... (and probably +3) do have floating bus port. But it is not ... that +2A does not have floating bus port, but it's incorrect ... -
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+ will ... -
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+ will ... -
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+ will ... -
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…
... is there to do anyway? floating bus "fix"... what else?) -
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…
... anyway? floating bus "fix"... what else?)[/QUOTE]
Does the floating bus fix give 100 ... -
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;600093]Does the floating bus fix give 100% compatibility?
[/QUOTE ... -
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…
... behaviour, EVEN when secaria's floating bus fix is implemented (a resistor soldered ... -
Fixing/modding my new +3Hi, In december I won an auction for a working +3 with a dead floppy drive, + a Multiface 3, some disks and tapes, for a very low price (I think nob…
... need to do the sound fix, but then you'd have ... +3 motherboard with a supposed floating bus fix (resistor between D7 of contented ... -
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…
... the resistor fix (to give it some kind of "floating bus" as the ... -
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 ... done a DIY mod or fix...) -
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…
... soon. This is a bug-fix release for 0.8.0 ... :
* Fix IN timings and floating bus behaviour.
* Fix widget UI pokefinder ... and keyboard help picture.
* Fix ... -
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…
A bug fix version of Fuse for Mac ... /> [list]
[*] Fix IN timings and floating bus behaviour.
[*] Fix crash if fullscreen ... PAL TV scanline preference.
[*] Fix debugger stack display, tweak debugger ... -
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…
... demos for ages now. I fix all the interrupts so there ... 's not due to the floating bus, maybe the real hardware changes ... -
Problems with SpinHi, took this emulator for a spin, loaded a hacked version of JSW and willy keeps jumping. Tried another version of JSW and again, he constantly jump…
... /> Is there any way to fix it?
[/quote]
fix.
[quote]
ZX32 ... don't recall) of a floating bus, which is one of the ... the game will read the floating bus, which amounts to pretty much ... -
Problems with SpinHi, took this emulator for a spin, loaded a hacked version of JSW and willy keeps jumping. Tried another version of JSW and again, he constantly jump…
... is to do with the floating bus implementation on the 48k/128k ... that's not a suggested fix, then I don't know ... -
Pocket Clive - 2 QuestionsHello, I've just started using Pocket Clive on my iPaq pocket PC, excellent emulator BTW. 1. I have just wrote a small BASIC program to randomly pi…
... the routine probing the 'floating bus' is checking for the ... wrong by removing the 'floating bus' IN instructions, as ... fix' method undoubtedly uses up more T-states than the 'floating bus ... issue, so presumably the 'floating bus' synchronisation code was removed ... -
128k, +2, +3ok i`ve asked a lot of questions over the few days but this is gonna be my final one on whats what unless i get lost once i get my apeccy so here goe…
I did the "floating bus" or port $FF fix with that one resistor between ... -
128k, +2, +3ok i`ve asked a lot of questions over the few days but this is gonna be my final one on whats what unless i get lost once i get my apeccy so here goe…
... /> I did the "floating bus" or port $FF fix with that one resistor ... -
RealXThis may be a dumb question but will RealX ever get released?
... snow mechanism and all our floating bus tests match the real 48k ... authors will be able to fix your emulation up. We must ... -
RealXThis may be a dumb question but will RealX ever get released?
... of the ULA's private bus are crossed in the 48K ... snow mechanism and all our floating bus tests match the real 48k ... authors will be able to fix your emulation up. We must ... -
Group Order of Internal/External Kempston Turbo InterfacesI have contact Velesoft ([url]http://velesoft.speccy.cz/kmturbo-cz.htm[/url]) about the production of internal or external kempston turbo interfaces …
... features i can add:
-floating bus stabilisation ( return interrupt vector #FF ... to data-bus )
-fuller joystick emulation ( on ... 127 )
-issue 2 emulation ( fix port #FE ) -
Questions about the Speccy and it's emulationOut of interest, and to raise another interesting discussion, I have some questions about the Spectrum and it's emulation; 1) Is everything known ab…
... the floating bus at the time.
A quick'n'dirty fix ... was to replace the floating bus code with a ... precisely timed replacement for the floating bus code in an official retail ... -
Russian Translations...As i have once again been reminded (by the "Homebrew games" thread), there are some funky looking Russian games that I can't play due to not understa…
... aware of the +2A/+3 "floating bus" (or lack of) issue and ... even hacked a game to fix that on a +2A. But ... -
Which speccy do you use & why ?I`m lucky enough to have the choice of using a 48K original, a 48K+ and a 128+2B Sometimes I prefer the 128 because of it`s nice keyboard, crisp pic…
... issues affecting the +3 (no floating bus, edge connector differences, broken sound ... well and good, but sound fix requires intracate modificaition of the ... to perform the +3 sound fix. That beyond my soldering ... for tenner.
Bus issue I'm not that ... -
+2A/+3 compatibility fixes thread!It might be a good idea to keep these fairly common +2A/+3 compatibility fixes (and requests) in a single thread for quick reference ;) Let's start …
A fix for the original Arkanoid release ... effects routine also used the floating bus so I've bodged around ...
