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How to connect a ZX Spectrum to a QL (RGB) monitorI recently acquired a pretty nice (old) original QL Vision color monitor. It works GREAT with the QL and the ZX 128K. The normal ZX Spectrum however,…
... QL Vision color monitor. It works GREAT with the QL and ... and I know how to do this composite out mod. I also ... -
How do 3D earphones work?Something I've wondered before is how 3D headphones work. Has anyone ever tried them? To be exact, it's not the earphones that are 3D, it's the littl…
... ve wondered before is how 3D headphones work. Has ... near something that gives out sound from a fixed ...
Of course, it only works if the sound is 5 ... s amazing, but how does it work? How can two output ... easily enough. How does that work, and how does a ... -
The Hobbit:A guide and how i play it.Yes i know there are walkthroughs and guides on the net but what i want to do here is give chance for those people to complete the hobbit who have no…
... way that can show you how interesting the game really ... second visit.
If it works for you first time well ... people enjoy trying it out and seeing how there can be slight ...
We need to get out of the dungeon so we ... him,there are two ways out W and SW we ... -
Interesting finding. How to connect TV out?Hello. I was passing in the street, and repeired in a open plastic bag clearly abandoned. So, inside it there was: a CD, a ZX Spectrum 128k+2 and i…
... current in home and it works in a very noisy way ... tried to connect its TV out to a modern PCTV board ... coming from the Spectrum TV out is it Compound-video, RF ... -
How much memory on sprites, maps etc.I've been tinkering with shifting & pre-shifting sprites recently, but as I haven't had that much experience with Z80 assembly I sometimes find it ha…
... find it hard to decide "how much is too much" as ... about 40KB it tends to works out something like:
- sprites ... 't too much of a 'how long is a piece of ... 'd be interested to know how you coding types tend to ... -
i dont know how to use a spectrum!uhhh sorry to elbow in to your lovely fan site, but i'm from usa (living in uk) and selling a spectrum on ebay on behalf of an english friend. I jus…
... checking that it works. i am like: errr uhh how do i ... cord has 2 wires sticking out, blue and brown, and that ... -
How to benchmark a single routine?I've written a routine. It works. But it was never meant to be the final version. So I rewrote it. The new routine works too. Yay. :) However, I'd …
... 've written a routine. It works. But it was never meant ... works too. Yay. :)
However, I'd like to know how ... hoping there's some tool out there that might be able ... -
How slow can a CF-card goSurprising. My 48k Spectrum did not allow me to CAT all the 254 files that my private DOS (for CF-card) can store in each sub directory. Spectrum get…
... me to CAT all the 254 files that my private DOS ... my Transcend CF-card times-out some 10 seconds after a ... 's back to single-sector works, to fit the standard CAT ... -
Please explain how a Kempston interface circuit works.Can someone help me understand how a Kempston joystick interface works, as I want to design and build my own as an experiment. I understand switches…
... help me understand how a Kempston joystick interface works, as I ... high, but that's how they used to do it ... don't understand is how the result is delivered ... I don't understand how a tri-state controller is ... to achieve this, and how should they be connected? ... -
Help with Manic Miner tweaksPlease. :) This is the Software Projects version, simply as I had it to hand. [B]Problem 1:[/B] I've learned a bit (actually quite a bit) and manag…
... cannot see how the 'bonus life per 10K' works. Here is ... L_90EE: DJNZ L_90EE ; 37102 16 254
DEC C ; 37104 ... br /> CP 42 ; 37113 254 42
JR NZ, ... br /> CP 57 ; 37130 254 57
JR Z, ... I'm trying to work out how the score is added, a ... -
Cleaning the Spectrum inside and outJust wondered how people clean their Spectrums inside and out. I have been using isopropyl to clean the port connections on my +2 and +3 but not sure…
Just wondered how people clean their Spectrums inside and out. I have been ... I use on my car. Works pretty well on the car ... -
How many games will I miss out on...Quick question, how many games are there that do not work on the 48k speccy?? I've just gone from a 128k to a 48k due to tape issues but I'm wonderin…
Quick question, how many games are there that do not work on the 48k speccy?? I've just gone from a 128k to a 48k due to tape issues but I'm wondering how many games and/or software im missing out on?? :confused: -
May the "How to do it" bullet pointing commence!"You Tube" does not cover everything ZX Spectrum realted There are now so many ways to use ZX Spectrum related stuff. And therefore therefore ther…
... to find it out for yourself . ... :-
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How to TZX on PC. ... TZX file it works with a ZX ... -
How to amplify the TV out signalI have one of these handy USB sticks where you can input a composite signal, left audio and right audio, but it can also accept UHF/VHF signals (in o…
... ). With cable TV signals, this works partly, some channels can be ... want to give a composite out mod. It seems the TV ... UHF/.VHF signal that comes out of the ZX? -
How to automatically find the character set in a gameThis is all completely new to me, so please be patient. I've done some reading up on how character sets are handled by the Spectrum. I understand tha…
... done some reading up on how character sets are handled by ... Rebelstar, that works fine and I can copy out the redefined character ... -
How to write a simple C+asm horizontal scrolling game (Tutorial, z88dk)[b]How to write a simple C/asm horizontal scrolling game[/b] [b]Note:[/b] This tutorial has multiple parts... I am still writing but this first pa…
[b]How to write a simple ... so you need to figure out that one yourself.)
... />
However, if this works, then you have a working ... Congrats!!!
If it works, you should rename the tut2 ... just using it to add out scrolling function in here, ... -
I would like to write emulatorHi guys, I'm new to this forum but I realise that you must get loads of posts from people asking "how do I write an emulator" so I'll try and be spe…
... are essentially the same: 1 + 254 = 1 - 2, same result, different ... know you have a carry out. Similarly if you have a ... only have to understand how two's complement works so you can ... -
New Compo IdeaI've had this idea and would like to know what do you think about it. I think that most of us here know how to code in BASIC. The problem with Specc…
... * Port #254
-----------
Port #254, used as output (using OUT) can ... /> * If you are running out of memory remember that every ... mocks you when you run out of memory. Alternatively, POKE ... three. The message printed out is contained in ROM ... -
How to speed up TZX loading (emu development)With many newer emulators there are options to do faster loading schemes, even for turbo-loader or protected loader blocks in TZX files. For example,…
Here's how the generic edge routine in SPIN works.
A ... times before an IN A, (254) is considered to be part ... two programs were catching it out. It now, after an edge ... -
Scrolling Loader CounterPlease can someone help me with writing a scrolling counter for a loading system. I like the Hewson counter so i`ve taken the font from zynaps loade…
... won`t fully understand how to do it myself. ... I don`t understand how it works though, as I`m ... I`ve already worked out how to use the Zynaps loader ... I don`t even understand how to scroll the numbers ... [code]
listening port 254
short delay which is ... -
Wrong File Type, 0:1Ive gone thru an entire transform box full (20) of cartridges containing spectrum games that i wrestled off bay last year, yet not a single one will …
... custom ROM - which is how the Mirage Microdriver works).
However ... with the bytes 243,49,254,156.
(There's no ... +1
90 IF z 254 THEN GOTO 30
100 ... /> Hopefully the program will print out something like "address 33792 appears ... -
Analogue BeeperThere's been a discussion on foro.speccy.org about multichannel beeper stuff, and since I had the camera out and the scope set up, I set about demons…
... still haven't quite fathoms how you produce multichannel sound.[/QUOTE ... analog low-pass filter. This works because the function of a ...
di
ld c, 254 ; port
.loop
... a ; output zero
out (c), a ; out
.delay1 djnz .delay1 ... -
FMV on +3eOK, so about 6 months ago i posted here that i got full motion video on +3e, with a bunch of scr files called passion. I added the glider rider music…
... real, please give us feedback how it works.
[code]
exx
out (c),a
exx
253 15
254 15
255 15
zxs v0.2 releasedI have released v0.2 of zxs if anyone is interested, judging by the response to the first release, I'd say not, but I'm gonna do it anyway!. It has h…
... for you...
IN 254 always seems to return 255 ... away on the keyboard image! How have you implemented the keyboard ... for IO WR. IN & OUT instructions see the elements of ... Speccy reads the keyboard, it works and it's fast and ...Help with Manic Miner tweaksPlease. :) This is the Software Projects version, simply as I had it to hand. [B]Problem 1:[/B] I've learned a bit (actually quite a bit) and manag…
... cannot see how the 'bonus life per 10K' works. Here ... : DJNZ L_90EE ; 37102 16 254
DEC C ; 37104 ... br /> CP 42 ; 37113 254 42
JR NZ, ... ]
Here's how (my disassembly uses Bug-Byte ... I'm trying to work out how the score is added,[/ ...RFC: 64 column font codeIn BASIC, type CLEAR 49999 then import the code at 50000. Then type RANDOMIZE USR 50000. This will create a new channel and attach stream #4 to it. A…
... don't know anything about how to load it on the ... in the font and it works out well for 6502 indexed addressing ... at a screen location
;* works similar to print@ in Microsoft ...Can anyone show a slight diagram of how pokes work in a jet set willy game for example?I know its kind of something to do with machine code and Memory addresses etc but would be nice to see a youtube video or some drawings etc ? .Many t…
... Spectrum manual that tells you how to define UDGs in BASIC ... and 255+3=2 and 254+7=5.
... as equivalent to -1 and 254 as -2 and so on ... that's how people manage to get signed arithmetic out of just ... too many away, it all works out the same in the end.Comp.Sys.Sinclair Crap Games Competition 2017As the creator of the second-least crap game in last year's competition (and the only mug stupid enough to agree to host it this year) I am proud/ash…
... you can strip it all out and write your own code ... ".
The way it works is at memory address 64000 ... . The first number, '3', says how many sets of data there ... 23676 with either 255 or 254 to switch banks.
