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Paging questionI've a question regarding paging on the Spectrum 128K, +2, +2A, +3, etc, etc. Suppose we are running a program in the page that happens to be.. well,…
... a question regarding paging on the Spectrum 128K, +2, +2A, +3, etc ... a real Spectrum ? Or is paging fast enough for the processor ... -
RAM paging and port usageDear users and developers, I'm just trying to find some detail information about RAM paging on the Spectrum 128 and later models, especially those a…
... detail information about RAM paging on the Spectrum 128 ... .
Spectrum +2A and +3:
if port ... TS2068
No RAM paging, but always fixed 48k RAM ... In addition to the paging methods of the Spectrum ... the RAM bank for paging at address C000..FFFF ... -
128kB software with incorrect memory pagingI search all ZX software using incorrect memory paging via OUT (253),A. This software must write to port data value with D6=1 for compatibility with …
... ZX software using incorrect memory paging via OUT (253),A. This ... D6=1 for compatibility with +2A/+3 models (need A14=1 ... -
+2A extended memory map & ULA bug?The [URL="http://www.worldofspectrum.org/faq/reference/128kreference.htm"]128K reference page[/URL] says: [quote]The ULA bug which causes snow when I…
... on the Spectrum +2A if I switch to special paging mode, with ... -
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, …
... ,
having added the +2A/+3 emulation recently, I want ... to figure this out by paging the shadow screen in and ... would really appreciate if some +2A/+3 owner would run the ... -
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…
... discovered in the past, Spectrum +2A (and probably +3) do have ... situations:
When the paging is disabled (bit 5 of ... running on my old Spectrum +2A:
https://www.youtube ... on the net says that +2A does not have floating bus ... -
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 …
... code is running on a +2A/+3?
My ... the 128/+2 and the +2A/+3. Something like this:
paging port
ld hl,$c100 ... on 128/+2 but not +2A/+3
out (c ... means we're on a +2A or +3
[/code ... -
can any 128k features be accessed from 48k mode on a +2, +2a, +3, etc spectrum?like memory paging, ay sound, etc. i have seen that you can jump back into 128k basic from 48k basic on the +2a and +3 machines, using a simple ra…
like memory paging, ay sound, etc.
i have seen that you can jump back into 128k basic from 48k basic on the +2a and +3 machines, using a simple randomize usr command. -
+2aI have a +2a and it wont boot properly get the white border with black square when first powerd on but then just goes into a black screen instead of …
I have a +2a and it wont boot properly get the white border with black square when first powerd on but then just goes into a black screen instead of menu anyone have any thoughts or could help with the problem would be most appreciated -
Which expansions can I attach to a +2A?I have several peripherals that I would like to connect to a +2A: an Interface 1 with Microdrive, a +D disk interface and kempston joystick interface…
... like to connect to a +2A: an Interface 1 with Microdrive ... " trouble fitting it to the +2A slot, due to differences in ... anything about expansions for a +2A...
Especially the if1 ... -
sound on +2ACan someone let me know what sound output there is on the sound socket of the +2A? I mean is there sound on both ears if headphones are plugged in. …
Can someone let me know what sound output there is on the sound socket of the +2A? I mean is there sound on both ears if headphones are plugged in. I am trying to fix my +2A so I want to know how it shoud be. -
Search ZX Spectrum +2A MainboardHello! Please help! I search a mainboard for my ZX-Spectrum +2a. Thanks. Torsten.
Hello!
Please help!
I search a mainboard for my ZX-Spectrum +2a.
Thanks.
Torsten. -
+2A external tape loadingGot a +2A on the way and will want to load externally. Now I know that the +2A is basically a stripped down +3 with a tape deck instead of a floppy …
Got a +2A on the way and will ... /> Now I know that the +2A is basically a stripped down ... loading lead works on a +2A.
Now for the ... -
What are the differences between the +2 and the +2A ?I only acquired a +2 for the first time in my life a few months ago. It works fine. :) I even managed to tracke down nearly all the wargames by the s…
... it starts talking about the +2a and how it compares to ... -
Connecting a data recorder to a +2A?I have a +2A Spectrum, and getting increasingly frustrated by the unreliable built-in data recorder, I decided to start using an external one. I got…
I have a +2A Spectrum, and getting increasingly frustrated ... a data recorder to a +2A, or is it only designed ... -
what are exact current values on +2A's PSUI like to know what is written on an original +2A PSU nearby each voltage. I mean the current for +5V, the current for +12V and the current for -12V.…
I like to know what is written on an original +2A PSU nearby each voltage.
I mean the current for +5V, the current for +12V and the current for -12V.
Thank you.
Best wishes,
Cristi -
READ HERE! AUDIO IN FOR 128+2A???hey my name is Paolo and I'm from Italy..this is the first time that I post on this forum..I would like to connect or create an EAR input or somethin…
... something similar into my 128k+2A..my
built-in tape ... -
Kempston Interface Work On 128k +2a Hi need some advise Will a Kempston Interface work on a 128k +2a machine ? ? , if so wish one would be best to use , so looking for one Aswell . …
... Interface work on a 128k +2a
machine ? ? , if so wish ... -
Kempston Interface To Work On 128K +2a ( HELP )Hi need some Advise I'am trying to play games on a 128K +2a Using a (Kempston Interface +3) but it will not work (WHY) , do you need to setup or so…
... play games on a 128K +2a Using a (Kempston Interface +3 ... -
Need info on +2a Serial PortsHi all, I'm trying to build a serial link to my Linux box and I need to know what type of connector plugs into the serial port at the back of +2a sp…
... port at the back of +2a spectrum's. I was under ... -
Detecting +3 or +2AIs it possible to detect whether your BASIC program is running on a +2A/+3 or a proper 128?
Is it possible to detect whether your BASIC program is running on a +2A/+3 or a proper 128? -
128 Memory PagingI'm having a problem getting my brain around paging. Well, actually the bit I don't understand is how reading I/O ports works! I hope the collective …
... problem getting my brain around paging. Well, actually the bit I ... /> Port 32765 controls the memory paging. Bits 0-2 determine the ... -
Scart lead for +2aDoes anyone know where I might buy a lead to connect my +2a to a scart TV?
Does anyone know where I might buy a lead to connect my +2a to a scart TV? -
Tough paging questionOK... Take this: 1. We have a program compiled and run from within GENS under a Pentagon 128K environment. 2. The program works perfectly. 3. We sav…
... glitches, especially in matters of paging.
6. The generated code ... :
I thought the paging system for the RAM on ... different in matters of RAM paging.
And, Cyborg, yes ... -
problem with my 128k spectrum +2afirst sorry for my english yesterday i?v get a 128k spectrum +2a,when i put it working, it started fine. i can watch the main menu, but i can?t use d…
first sorry for my english
yesterday i?v get a 128k spectrum +2a,when i put it working, it started fine.
i can watch the main menu, but i can?t use de cursors and the intro.
the brake works,and the reset.
eskerrik asko -
Getting a DISCiPLE/+D to work on a +2A/+3?Does anyone know how compatible the two interfaces could be made with the +2A/+3? I remember that there were a couple of POKEs that could get a +D t…
... could be made with the +2A/+3?
I remember ... +D to work on a +2A (they were listed on a ... -
+2A DiagnosticsHi, I searched the forums to find any info about it but wans't able to find it, maybe someone know how to do it. So i remember when i used my +2a tha…
... remember when i used my +2a that sometimes when i pressed ... because whenever i reseted the +2a pressing keys at the same ... -
Boxed Spectrum 128+2a for saleIm selling a boxed 128k +2a on ebay att he moment, it has the following with it : Magnum lightphaser in mint condition with 6 gun games inc Op Wolf,…
Im selling a boxed 128k +2a on ebay att he moment, ... -
2 spectrums for sale, 48k and a 128k +2aI have another 2 spectrums for sale a 48k model with speech synth If I rember Atic Atac is one of the games to use it :) And A 128k +2a with lightg…
... /> And
A 128k +2a with lightgun and some games ...
