-
Experiments mixing ULA+ and Timex Hicolour featuresI'm trying to improve my Verilog skills, so I've written a description of a complete ZX Spectrum 128K (+2 grey ROMs), with AY-3-8912. I wanted to add…
... easier in the 128K/+2 models. For 48K and +2A/+3 models, I ... ULA doesn't output RGB, and the later because it's ... a SMD device and it's very difficult to ... -
BorderTron 3000A little bit of speccy-related fun for a Friday afternoon... I've knocked together a program for Windows which I've called Bordertron 3000 (a suitabl…
... difference between the 48k assembly and the 128k and saw only a few ... routine
3) And the fact that each 128k row has one ... a bit longer in the 128K code.
EDIT: Actually ... +early&late-timings compatibility in a single routine, and if 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 …
... work now on any 128K Spectrum - +2A/Bs and +3s need the USR0 ... -
+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 …
... work now on any 128K Spectrum - +2A/Bs and +3s need the USR0 ... -
BorderTron 3000A little bit of speccy-related fun for a Friday afternoon... I've knocked together a program for Windows which I've called Bordertron 3000 (a suitabl…
... more complicated things like scrolling and whatnot...
[url ... editing of both the top and bottom border areas. Both ... BorderAYDemo" is a TAP file and associated source file that plays ... flicker on a 128K speccy using both normal and late timings. I've ... -
The new Superfo cloneHi In the spanish forum speccy.org some guys and me have optimized the superfo clon to have less ICs. The actual design has 39 ICs versus the 45 ICs…
... the PCB be designed for? 128k+, +2, +2a/b or +3?
and the +3/+2A only needs minor work. -
ESXDOS v0.8.0 released (with NMI Browser)Hello, To celebrate the speccy's 30th birthday, here's the latest version of ESXDOS for DivIDE users. The full changelog is too long to post here, s…
... as normal), but my toastrack and +2A work fine! Seems odd ... the jumper for the +2A/+2B/+3 models with your ... 48Ks?
Your +2A is really a +2A or is a + ... 2B inside a +2A case?
My ... 2068 (with emu cartridge) and on my 128k+2B.
DivIDEo ... -
No video in Spectrum 128k +2A Grey[B][COLOR="red"]EDIT: 26-05-2012 = Thread topic edited[/COLOR][/B] Hi everyone, Recently i won a Spectrum 128k +2A Grey at ebay UK. The Spectrum …
... no such thing as a "+2A Grey".
The grey model ... actually a +2B. The +2A/+3 and +2B use the same RGB ... 's printed on the plastic 128k Spectrum +2A Made in Taiwan.
ZXMAK2 - ZX Spectrum Virtual MachineHi guys! I'm glad to present you new version of my emulator! :) ZXMAK Version 2.6.2.3 ([URL="http://zxmak2.codeplex.com/releases/view/88804"]downlo…
... it's very accurate on timings, early and late.
About the ... 48k, then load it in 128k and save it from there as ... 128k snapshot. If that works it' ...ESXDOS v0.8.0 released (with NMI Browser)Hello, To celebrate the speccy's 30th birthday, here's the latest version of ESXDOS for DivIDE users. The full changelog is too long to post here, s…
... of the issues in enabling 128k ROM compatibility is that you ... versions depending on model (128k+/+2 and +2A/+3), and also depending on language ...ESXDOS v0.8.0 released (with NMI Browser)Hello, To celebrate the speccy's 30th birthday, here's the latest version of ESXDOS for DivIDE users. The full changelog is too long to post here, s…
... of the issues in enabling 128k ROM compatibility is that you ... versions depending on model (128k+/+2 and +2A/+3), and also depending on language ... with the standard 48 ROM and bypass the trap addresses. However ... to get a +3/+2A or +2B and replace the ROMs with ...BIFROST* ENGINE 1.2 released!Another improved version of the BIFROST* ENGINE is now available! Download it here: [url]http://www.worldofspectrum.org/infoseekid.cgi?id=0027405[/u…
[QUOTE]Portability: The current version of the BIFROST* ENGINE supports all standard
Spectrum models (48K, 128K, +2, +2A, and +3)[/QUOTE]
Pentagon forever!
need config in compiler.Brazilian TK90X and TK95SpecEmu provides explicit support for Brazilian TK90X. Other emulators provide indirect support (perhaps the "Spectrum 48K NTSC" option in Fuse?). Al…
... [*]Main video timings are identical to Spectrum 128K/+2, except everything ... performed test checks the timings of an update to ... Moreover, the difference between Spectrum 128K and TK90X were exactly 5602T, ... does not have "late timings" (although we would have ...RECOM pin compatible DC-DC 7805 regulator replacementsFinally got myself sorted out now. If you want to purchase chips send me an email to [email]alistair@alistairsserver.no-ip.org[/email] with your payp…
The 128k and Grey +2 require a higher current, these are only suitable for the 48k machines. There are RECOM chips with higher rated outputs but I only have the 1A ones.
The +2A/+3 have no voltage regulator at allDivIDE and custom RomsI've got a DiVIDe 57c that I bought of bverstee earlier this year which works with all my machines with the original roms, boots up, detects for driv…
... press the NMI button (in 128k and 48k modes on a toastrack ... and grey) but when I put ... will just reset to 48k and once in 48k it will ... contended memory to match the +2a/2b/3, I think that ... the way the SE-0 and SE-1 are combined in ...Coding for 128kHi all, I wonder if anyone can suggest any useful reading/threads/examples on the fundamentals of 128k coding. Chapter 24 of the +2 manual has prov…
... Thats truth for +2A/+3 models, 128 and +2 does not ... .
-contetion on 128K/+2 and +2A/+3 models differs, it ... page. Only banks 0 and 2 are uncontended on ... different way) page bank and switch screen on one place ... only and keep current state of ...Cycle exact emulation?I was just reading the thread about +3 emulation having different results on different emulators, and it made me wonder if any Spectrum emulators hav…
... some may actually prevent games and apps from behaving correctly. ... the interactions between subsystems, and the timings that exist between them ... with the 48k now, and the 128k has very few secrets ... +3 hardware, getting the timings (cycle counts) just right.< ...Pictures of your ZX Spectrum collectionsI love seeing other people's collections of stuff. Be great to see your shelves or boxes full of games so we can have a nose at it too. I find it he…
All I have about Spectrums, and something more, is in [URL=" ... Plus
1 ZX Spectrum 128k by Investronica
1 ZX ... 2
1 ZX Spectrum 128k Plus 2A
Nuff said ...Spectranet and toastrack issueI've been using my spectranet with no problems on my standard 48k but just started using it on the toastrack and am having an issue. That being that…
The problem is basically the 128K machine is a bit marginal, ... great deal of parasitic capacitance and inductance which is not ... one of mine perfectly, and intermittently with the other one ... perfectly with the Amstrad +3 and +2A. (Indeed, much development was ...Spectranet and toastrack issueI've been using my spectranet with no problems on my standard 48k but just started using it on the toastrack and am having an issue. That being that…
... The problem is basically the 128K machine is a bit marginal ... great deal of parasitic capacitance and inductance which is not ... one of mine perfectly, and intermittently with the other one ... perfectly with the Amstrad +3 and +2A. (Indeed, much development was ...How far are we from a single-chip 100% ZX Spectrum compatible solution?I really like to read about the projects of some geniusses here on WoS who are working on their ZX Spectrum clones. IMHO some main steps that have b…
... a ZX Bus on it, and maybe audio in/out would ... ? Do we call ZX +128k, +2, +2A or +3 is a "hardware ...TKMEM - the 128K interface for 16K SpectrumsHello all! Here in Brazil, we have made a small production of an interface, totally based on Velesoft?s memory expansion ([url]http://velesoft.speccy…
... ! I've just read it, and it seems very helpful. I ... understand the ULA timings, though! It seems the timings are '5602 T ... -late) ZX-Spectrum 128K timings' except the border timings are one T-state ... ' timing of 14362 for the 128K, and 14362−5602 = 8760... yet an ...+3 Stereo mod - soldering help neededI bought a few bits from Ben just recently, and yesterday I opened up the case of my +3 and tried to install the stereo mod. I got stuck quite early…
The original 128k and +2 have resistors between the AY channels to join them but on the +2A/+3 and +2B the pins are directly shorted together on the circuit board.Why do games work using USR0?I'm trying to get Terramex to work from disk. In the [url=http://www.worldofspectrum.org/forums/showthread.php?t=34332]thread about +2A/+3 incompatib…
... banking and Terramex works fine in 128k mode.
Maybe the +2A ... /+3 interrupts do something nasty and ... different to 128k workings? Maybe ...The Disciple clone... doable?Hi. As a spectrum user in the 80's this was the dream interface all-in-one for me. I have a 48k+ and planning on get a 128K toast-rack later. Anyway…
... of course that the +2 and +2a/b have more differences than ... and found that the DISCiPLE more-or-less worked with the 128K ... probably replacing the two PALs and redesigning the board somewhat.
and with only one PAL, for ...Killing a Speccy with sound. :(Is it possible to do damage to a Speccy by Loading in a game too loud? I only ask as... that's what I appear to have done, on two different Speccys…
... about the 48K model, not 128K or +2A/+3)[/QUOTE]
and it was fine. I then ... the original working game in and... it just couldn't recognise ...The Disciple clone... doable?Hi. As a spectrum user in the 80's this was the dream interface all-in-one for me. I have a 48k+ and planning on get a 128K toast-rack later. Anyway…
... occurs on the toastrack and grey +2? Can ... course that the +2 and +2a/b have more differences ... and found that the DISCiPLE more-or-less worked with the 128K ... had a Disciple and a toastrack 128K machine back in ... the days, and I ...Interface 1 bisOk, well the postmans just been and brought with him my new arrival, the Interface 1 bis. So as promised I thought I'd share some initial usage exper…
... 1bis for a week now and I can heartily recomend it ... it with my rubberkey, toastrack and +2a.
The only thing ... out is how to load 128k programs as the extended basic ...Fully-addressed devices initiative (FADI)I would like to introduce an initiative for those who create new pieces of hardware containing legacy devices with well-known addresses. It says that…
... ]
Indeed. Spanish 128K toastrack don't put IORQGE ... The thing uses ports 98h and 99h (as in the MSX ... ) and so, I had to ... to enable IORQGE on 128K heatsink and +2A/+3 prior to use ... link inside the text. +2A/+3 is not difficult, as ...Fully-addressed devices initiative (FADI)I would like to introduce an initiative for those who create new pieces of hardware containing legacy devices with well-known addresses. It says that…
... [QUOTE=mcleod_ideafix;688675]Indeed. Spanish 128K toastrack don't put IORQGE ... The thing uses ports 98h and 99h (as in the ... MSX) and so, I had to ... to enable IORQGE on 128K heatsink and +2A/+3 prior to use ... link inside the text. +2A/+3 is not difficult, ...
