-
Banked memory running slower?I've just compiled a TAP which includes bank6, it loads ok, but the routines that are paged in run slightly slower. The Z80 snapshot has no such pro…
... the differences between 48k (easy, no paging), 128k/+2 and +2A/+3 ... +2A and +3, but I guess there will be some differences on ... -
Best emulator for android/jxdHi folks recently got a JXD handheld and struggling with the Marvin emulator's control system. Any recommendations??
... or convert to trd format +2A/+3 exclusive titles like Galaxy ... if there are some important differences in terms of compatibility or ... -
A redesigned version of Winston's diagnostic board[U][B]A redesigned version of Winston's diagnostic board[/B][/U] This is a continuation of a project that started in a hijacked thread [URL="http://…
Bump - I've added +2A/+3 memory test functionality to ... line differences, so anyone trying this will have to select +2A/+3 ... -
A redesigned version of Winston's diagnostic board[U][B]A redesigned version of Winston's diagnostic board[/B][/U] This is a continuation of a project that started in a hijacked thread [URL="http://…
... the diagnostic board on my +2A, it reports the ROM as ... ;811985]Bump - I've added +2A/+3 memory test functionality to ... line differences, so anyone trying this will have to select +2A/+3 ... -
Scart issues with a 2AAnyone else have problems with scart leads with Spectrum 2A's?. I tested mine with three Samsung TV's ( all around 2/3 year old) , and it gave me a …
The signals outputted by the +2A / +3 are different from the ... /original +2.
The differences are covered in this link ... -
DivMMC Enjoy - I'm not enjoying it!My DivMMC Enjoy arrived today. Excitedly I rushed home to plug it into my +2a. I have quite a few SD card/CF solutions for my computers so I know wha…
... an issue 1 or 2 +2A and most of my RAM ... both schematics to compare the differences and maybe tryout the modification ... -
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…
... or native, either on +3 +2a +2 or toastrack. I cant ... /> OK I've snapshotted the differences between 48/128K versions when ... game starts and applied the differences 1 by 1 in the ... -
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…
... or native, either on +3 +2a +2 or toastrack. I cant ... /> OK I've snapshotted the differences between 48/128K versions when ... game starts and applied the differences 1 by 1 in the ... in normal way in the +2A has corruption sooner and crashes ... -
Newbie Hardware QuestionsI just recently aquired my first Spectrum, a +2, and I'm in the process of getting acquainted with it. Being a newbie I had some questions, which …
... though was a +2A, which was recased in 2A body. It was ... was rather unaware of the differences and it saved me from ... -
Renegade by ImagineOn the speccy 128/+2 you got ingame music but not on the +2a/b/3 (paging issue?), although all the 128k's had music on the menu page. Was there ev…
... .org/faq/reference/128kreference.htm"]differences in memory architecture and management ... the 128/+2 and the +2A/+3, so I am afraid ... -
What is the "SPECTRUM" keyword on a 128K?The 128K replaced UDG characters T and U with new commands; PLAY and SPECTRUM (or possibly the other way around.) The manual ([url="http://www.wor…
... there to be differences. As someone coming from a +2A background, I ... -
ZX Spectrum CartridgesI have been thinking of "cloning" ZX Cartridges for a while (case, board and silicon skirt), to be able to make new releases or replace damaged cartr…
... load cartridge games. Also, a +2A or +3 can load IF2 ... they will have some timing differences. Keep in mind that any ... -
Line DemoI was looking in the source code of another game (that Akalabeth game), with lots of line drawings. The difference was that they don't use the PL…
... , and the +3 / +2A/B / +3A, respectively, have differences.
A few ... -
+2A PSU ResurrectionHi all. I have a couple of +2A machines and a +3 with PSUs for each but I'm having a problem with one of them. I've replaced the internal glass…
... the power supply for the +2A / +2B is not rated to ... is happy to run a +2A / +2B.
[b][i ... the +2A/B one - I didn't realise there were differences as ... -
Meddling with the RGB signal - any experts out there?A few questions, if anyone knows - is it OK to split the A/V signal and feed it to two TVs? I'm assuming that it's not OK to do this with the RGB …
... I said. I have a +2A, so I know it generates ... TVs or monitors.[/quote]The +2A (most likely a +2B PCB ... be possible to match the differences between bright and non-bright ... RGB/Monitor socket of a +2A/+2B Spectrum. Or do you ... -
Are there any differencies between Speccies in different countries?I am asking for differencies of ordinary Speccies, not clones. Can I travel to foreign country, buy Speccy from fleamarket and except it will run at …
... . I'd buy a 9V/2A power suppply, it will be ... dark side).
Spectrum +2A and +3 use a different ... very noisy).
More differences:
- Spanish spectrums (except 48k ... -
Are there any differencies between Speccies in different countries?I am asking for differencies of ordinary Speccies, not clones. Can I travel to foreign country, buy Speccy from fleamarket and except it will run at …
... +2 were gray and all +2A were black, regardless of country ... /> There are some issues between +2A/+3 and all other 128k ... gray or black because that differences, because is the easier way ... computer is a +2 or +2A. -
Are there any differencies between Speccies in different countries?I am asking for differencies of ordinary Speccies, not clones. Can I travel to foreign country, buy Speccy from fleamarket and except it will run at …
... impossible to distinguish +2 from +2A/B. One thing looks to ... be different in +2A casing. +2A´s datacorder´s button labels ... above actual buttons. Does every +2A/2B has the same look ... other major physical differences are that the +2A/B has a separate ... -
Are there any differencies between Speccies in different countries?I am asking for differencies of ordinary Speccies, not clones. Can I travel to foreign country, buy Speccy from fleamarket and except it will run at …
... are a small differences in the audio circularity between +2A/3 and ... a bit better than any +2A/B & +3, but still ... -
Spectrum +2 datacorderHi, my Spectrum +2 datacorder isn't working. Does anyone know if I can still load software through the tape/sound socket at the back of the machine i…
... />
[QUOTE=Nuno2009;379351]The +2A rear sound socket named "TAPE ... wrote "TAPE/..." because firsts 2A had the same board than ... .
In "normal" +2A/+2B there is only output ... br />
Are there any differences between 128k +2 grey Issue ... -
Need help from people with a +2A/+3Started a topic [url="https://www.worldofspectrum.org/forums/discussion/55141/need-help-from-people-with-a-2a-3"]here[/url] to get a broader reach, b…
... /> We’ve determined that the +2A/+3 machines have a floating ... +2A/+3 behaves differently from the 48K/128K/+2. The key differences ... -
Should I sell my +2A?The +2A was the last Spectrum I bought and to be honest I never gave it much use :| Unlike the 48k, 48+ and +2 grey on which I have played many ga…
... which were developed on the +2A, they may not work as ... ? Anyone is aware of such differences and on which games...? -
Troubleshooting my +2To put this in context: a while back (i.e. late last year and earlier this year) I was looking to put together a compilation of modern Spectrum games…
... I refer to as the +2A, because that's what it ... the +2B. Both return "Spectrum +2A (v4.1) ROM" on this ... and just freeze on my +2A but these are known incompatibilities ... start screen. Are there further differences between +2s that I might ... -
ZX Spectrum +3 repairI have my first +3 here, and it needs repairs. Hoping someone here can help me out. When I power it on I get this screen with black and white line…
... zx.zigg.net explaining the differences between all the various PSUs ... +2 branded PSU for a +2A/B shouldn't be used ... -
Detecting +3 / +2AWhat's a simple but reliable way to detect if code is running on a +2A/+3? My first though was to try switching to ROM2 and then checking for the …
... can, it must be a +2A/+3.[/quote]
Doesn ... machine type is due to differences in memory contention. I suppose ... -
The I register pointing to $40–$7f causes ULA snow and a crash. Or does it?I have heard it from numerous sources, including a few members of this forum, that 128K/+2 machines crash if the I register points to a range of $40–…
... ’s right there in my +2A manual, as well (well, duh ... there.[/quote]
Yep, the +2A manual is basically the same ... frame overrun caused by timing differences and different bank contentions?[/quote ... -
TZX/Taper headachesI've been doing a stocktake of all my Spectrum stuff, most of which I bought in a job lot a few years back, and there's a whole load of covertapes in…
... - but it's those tiny differences that are what ensure that ... Grussu's page on the +2A/+3 problems and it isn ... -
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, …
... , add +1 for late)
+2A, +3 14362 14137 14140 14363 ... />
Because of all these differences, it helps if the btime ... -
Compatible With All ZX spectrums Except Spectrum +2A.This topic may well have been mentioned before but I could not find it mentioned anywhere after a quick look . I have just found a game called "Solar…
Yes, the +2A, +2B, +3 and +3B versions are all very similar. All have differences compared to the 128k “toastrack” and the +2 (grey).
[b][i]Mark[/i][/b] -
zx spectrum +2A power supply missing -12v voltshey.. i'm looing at a zx spectrum +2A power supply that the -12v rail seems to be missing .. it has the 12 volts and 5 volts .. it is the version wit…
... remember if it was the +2A/+2B PSU, the +3 PSU ... .
*Or at least differences from my unit. The schematics ...
