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"Freezes" on program loadingHi! I have ZX Spectrum+ (Issue 6A), and recently it has started to freeze w/o returning an error (but keyboard works) on program loading, regardless …
... /> Try the CLEAR suggestion to lower the RAM top before resorting ... in case some system variable becomes damaged due to an upper RAM ... -
Another "untested" dead spectrum...Hi, I'm looking for some suggestions on a faulty Spectrum I have picked up. I'll need to wait until tomorrow before posting pics, but the screen is …
In this case, my second suspect after the lower RAM and its power ... supply would be an upper RAM ... -
FZX: a new standard format and driver for proportional fonts[B]FZX[/B] is a very compact and efficient (although extremely flexible and powerful) standard format to create new fonts for the ZX-Spectrum. It sup…
... effects.[/QUOTE]
Boriel basic is not just a spectrum ... purpose. In the spectrum's case it's IY but honestly ... get sdcc which, like boriel basic, uses IX as a framepointer ... included rather than called to lower overhead). One version lets sdcc ... -
The Spectrum Resuscitation ThreadKicking off this thread as a place where people who are fixing/restoring Spectrums (or indeed any other piece of related hardware) can show off their…
... . I measured voltages from the lower memory and got pretty much ... socket joints and changed the upper memory RAM chips and I ... 's also missing a few case screws and the screw that ... the motherboard into the case bottom. A new case bottom wouldn't ... -
New bicolour game: El Stompo.Phew! Finally finished my first game using Einar's fantastic Nirvana engine. [B]El Stompo.[/B] [IMG]http://i1142.photobucket.com/albums/n608/davey…
... gameplay more obvious in this case would take away part of ... , I give up". In this case, this "misleading" aspect helps make ... try to rationalize it, each upper floor has 1 "joystick switch ... by individual switches. And the lower floor has 1 "joystick switch ... -
Totally random idea for the hardware nuts to exploreWhen it comes to multi-player games, how hard would it be to generate a second display from a single Speccy, instead of trying to link up machines, s…
... video circuits, ULA and the "lower" DRAM) and put it and ... Spectrum in to a suitable case, you could have a Spectrum ... standard case.
You wouldn't have much room for basic programs ... -
Plea for new hardwareI'm posting this as a poll as I want to judge if I'm a solo loon going on about this, or if people really are interested in either of the following S…
... normal screen from the lower to the upper 8K half of the ... hi-res mode, but SE Basic IV (which will run on ... -
Something I made in Minecraft...So, this is what I do in my spare time these days (when I'm sure a lot of you will be screaming for me to come back to Speccy-land; I assure you I wi…
... soon realised that the black case of the ZX81 wasn't ... the black label on the lower slope of the top cover ... there, somewhere, is a very basic computer (of sorts) built using ... -
Poorly Issue One 16k spectrum diagnosis?Hello, everyone. :smile: I was lucky enough to buy an Issue One 16k rubber key the other week; I didn't know it was an Issue One till I opened it up…
... and responds to keypresses and BASIC commands correctly. However, the screen ... symptom (2.) appears when the lower RAM replacement module is being ... I can't see the upper 32k yet.
It ... -
Poorly Issue One 16k spectrum diagnosis?Hello, everyone. :smile: I was lucky enough to buy an Issue One 16k rubber key the other week; I didn't know it was an Issue One till I opened it up…
... and responds to keypresses and BASIC commands correctly. However, the screen ... enough. If this is the case, I'd expect the Spectrum ... are not typical of a lower RAM fault. -
A tally on the number of successful builds of the Harlequin[SIZE=4][COLOR=Green][U][B]A tally on the number of successful builds of the Harlequin.[/B][/U][/COLOR][/SIZE] Please post your successes below :-) …
... lower and upper 16k halves and was placed in a ZX Spectrum + case ... -
48K: Half of copyright message in the middle of the screen?!Issue two. Has 74LS08 over the Z80, but the ULA is 5C112E-3 (I think this should be a 5C102E??? - I have one, but I'm not sure if it is working, at l…
... something about the whole upper memory and even more ... specific a potential broken upper memory chip, by just ... extended memory, as the lower RAM is 16K and ... So in this case, the first byte of upper RAM (as you ... .
An upper RAM chip might have failed ... -
So shooting 360 degrees?...[I]How do I go about having - for example - a cannon in the middle of the screen, that can shoot in any direction towards the player?[/I] Well, I do…
... upper byte is the number of whole pixels; the lower ... pixel, you use the upper bytes for screen co ... the subtraction carries into the upper byte, and so your ... to check for the case where the Y-distance ... - that's the impossible case where dividing one number by ... -
UDG tricks?I always enjoyed using [URL="http://www.worldofspectrum.org/ZXBasicManual/zxmanchap14.html"]UDGs [/URL]for the 'sprites' in my games, when I coded th…
... UDGs 256 bytes lower and POKE the upper half of ... All the things the BASIC interpreter in the ROM ... and variables of any BASIC program. A system variable ... the ROM will restrict BASIC to only using memory ... contain remnants of old BASIC variables and such like ... -
+128 with usr0 in menu screenIve just watched a video of a guy with a spectrum and on the loader menu i think under calculator the menu had an entry for usr0,anyone aware of this…
... . The original version of 128 BASIC is faster, has a running ... version), enables you to enter BASIC lines that are impossible to ... the UK editor (because only upper case words are tokenized), and enables ... to enter control codes in BASIC lines, has a full screen ... -
New user with a dead 48k issue 2Hello all I've found my way here from watching some excellent youtube videos by Joulesper Coulomb in an attempt to fix a issue 2 rubber key 48k I bo…
... IC23, a 74LS32) should disable upper RAM, but I have a ... a faulty IC in either lower or upper RAM is jamming one ... of the data lines, in which case ... -
DEATH is getting old.....I don't know, maybe it's just me getting old or something... There's a few things happening on here that I just don't understand. We have people th…
... of entry being a lot lower here days. You can get ... ?50 quid these days, with basic desoldering stations just twice that ... out and buys "just in case"
Who goes out ... -
RAM issue for potential 48k buy?Hi guys I've got a 48k in my sight for ?20 but... it has an issue: [QUOTE]"I tested the computer and only displayed a distorted screen. Coloured …
I wish that was the case...
Unfortunatly this is ... was going to use the upper ram slots sockets as a ... for my 48k if the lower RAM ever went wrong on ... -
Did you know.. Disciple edge connectorDid you know the edge connector used on the Disciple is actually identical to that from the Interface 1? [IMG]http://www.benophetinternet.nl/hobby/v…
... had built a special wooden case (my 48K Spectrum is ... s lower part and PCB is horizontal but the upper keyboard ... the width of the case because of its cooler ... br />
Inside the case there are all peripherals: M128 ... to the outside of the case).
I ... -
Scottish IndependenceJust wondering which way the Scottish Wossers will be voting?
... of oil revenues is a lower tax rate (personal and business ... in a society where the basic rules of economics do not ... for business investment as, best case scenario, Scotland will be viewed ... -
SpritesYes yes, I know this has been hashed over plenty of times before, but... I have knocked up a quick tiling routine which works with my back buffer co…
... .
Mirroring is a case of putting the mirrroring table ... boundary, so you set the upper byte of a register to ... your data byte in the lower 8 bits, then read from ... -
Shouting newbiesPersonally I always ignore them, but am I in a minority? What gives newbies the inclination to shout anyway? Perhaps they are new to the internet?
... would edit his name into lower caps and tell him to ... LET LIVE BROTHER! DOES THIS UPPER CASE ANNOY YOU? -
48K Upper memory issues?Having more issues with the 48K spectrum I just fixed that had the black screen in this thread [URL="http://www.worldofspectrum.org/forums/showthread…
... ;805419]I rather suspect the lower RAM test failed because of ... have thought that if an upper RAM IC was interfering with ... (s) - in this case it seems that the upper portion of the ... agree with just changing the upper RAM IC and replacing with ... -
New multisystem floppy interface (spectrum 16Kb/+2A/CPC464)Dear all, I would like to show you my new extern floppy interface. Same interface can be used for both, CPC and Spectrum systems. CHARACTERISTICS …
... of the upper row of the edge connector (in which case it ... the /RESET aka NRST from lower pin 20 which definitely does ... -
New multisystem floppy interface (spectrum 16Kb/+2A/CPC464)Dear all, I would like to show you my new extern floppy interface. Same interface can be used for both, CPC and Spectrum systems. CHARACTERISTICS …
... of the upper row of the edge connector (in which case it ... the /RESET aka NRST from lower pin 20 which definitely does ... -
New Game(s): Sir Ababol 2 and Sir Ababol DXHere is our own Christmas Present from Mojonia! We weren't going to release these games (at least, by the moment) but we decided just yesterday to fi…
... mention keys, but just in case you decide to redefine keys ... ;rem will print in upper or lower screen depending on channel
Who wants to play with my Willy?While cleaning up my PC a few weeks ago, I stumbled across an old Jet Set Willy mod I started back in the early 2000s. Although I don't quite have th…
... a number lower than the guardian's upper bound, the ... before "jumping" to its upper bound. It is not ... the same value as its upper bound (or higher).
upper item in "Mixed Feelings" ... screen and a custom BASIC loader would certainly add ...Features that are still wanted in Spectrum emulation.Features that are still wanted in Spectrum emulation. 4 USB joystick/gamepad input for real multiplayer games - Yes, Bomb Munchies.... - Sinclair 12…
... with varying values for the upper address lines that using ... s little advantage in using upper lines, especially as it ... if that might be the case. I suppose it will ... 2-bit decoding (in the lower byte) is DK'Tronics, ... interface if that’s the case. I can just about ...Floating Point Package Math48<br>I came across a neat little floating point package for the z80 and I'm adapting it now to work with z88dk and sdcc. There is an interesting…
... both sdcc and sccz80's case. sdcc's is built ... to use something faster with lower accuracy like a 16- ... . If that's the case, a native compare or ... that there should be some basic effort to understand how ... people should have some basic concept of whatever the ...Dead SpectrumHello guys, I've just bought a dead Speccy 48k (Rubber Keyboard Issue 3 board). Basically, when powered on it initially appears to boot up ok, but in…
... 't always prevent faulty upper RAM from interfering with ... that upper RAM faults are almost as common as lower RAM ... is the cause in this case. If the action of ... is in the upper RAM; the lower RAM is able ... replacement) ROM. In this case I usually resort to using ...
