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Disable onboard memoryWould this work...? Access to onboard I/O can be disabled by holding IORQGE high. Would it be possible to create a MEMRQGE in a similar way to disa…
... in a similar way to disable all onboard memory - like ROMCS ... , as then you could selectively disable CPU access to any piece ... -
Group Order of Internal/External Kempston Turbo InterfacesI have contact Velesoft ([url]http://velesoft.speccy.cz/kmturbo-cz.htm[/url]) about the production of internal or external kempston turbo interfaces …
... [/url]) about the production of internal or external kempston turbo interfaces ... /+3,Didaktik, Timex 2048 (need internal joy port to be disabled ... -
ZX 128 compatibility for SAM COUPEI develope new internal interface for SAM COUPE. This interface contain RTC compatible with original SAM BUS and MB02+, battery backed SRAM 512kB, 51…
I develope new internal interface for SAM COUPE. This ... layout and videoram switching)
Disable / enable extra SAM's features ... -
Spectrum beep volumesDid the earliar pre 1982 Spectrum 16/48k have a quieter beep than post 1982 models ? I seem to recall modifying my original Spectrum and fitting a j…
... the sound to an external speaker/amp, would this have been ... and can barely hear the internal beep, and I am sure ... -
I cannot disable "Load Disks Automatically" in ZX SpinI want to disable the automatic loading of disks in ZX Spin, but cannot succeed. Every time that setting checks it back on by itself. Is this a bug …
I want to disable the automatic loading of disks in ZX Spin, but cannot succeed. Every time that setting checks it back on by itself.
Is this a bug somewhere, or I have to configure something elsewhere ?
Cristi -
New interface for ZXThis is my old (2004) unfinished project of internal interface for ZX Spectrum 128+2: ([url]http://velesoft.speccy.cz/hardware_in_development.htm[/u…
... old (2004) unfinished project of internal interface for ZX Spectrum 128 ... /> - russian CACHE emulation
- possibility disable acces to low 16kB for ... -
Mass storage - why backup battery?I wasn't sure to post this under "hardware" or "development", but here goes: There are these mass storage devices for ZX Spectrum, and on many desig…
... design allows a peripheral to disable the internal ROM, which makes it ... -
JSpeccy: New emulatorHi there, Jos? Luis S?nchez (zx81 at ono dot com) has developed a new ZX Spectrum emulator in Java, with a very accurate Z80 emulation. The message …
... /> - Accurate execution timings
- MEMPTR internal register emulation
- Contended-memory ... bus emulation (Arkanoid, Sidewize)
- Speaker and MIC emulation (Cobra's ... -
Newbie questions about +2a - joystick interfaceI brought a +2a system back from London with me on a recent vacation and have gotten it working here in the states. I've found that if I plug my joys…
... there something special about the internal ports or does this indicate ... of noise from my monitor speaker (1084s d1). The music in ... -
yeah - unix for zx spectrumI started a new hobby project. An operating system for ZX Spectrum. A unix clone. Talked to my friend about it and he asked me what if after I'm done…
... be two kernels - external and internal kernel. The one in ROM ... will be the internal kernel. The remaining part on ... connected to actual microphone and speaker. ;)
After 26 years ... -
Speaker cableI've moved into my flat with my Hi-Fi missing the speaker cables, the red and black striped kind (without phono plugs) that goes into the back. So I …
... my Hi-Fi missing the speaker cables, the red and black ... ://cgi.ebay.co.uk/10m-SPEAKER-CABLE-WIRE-HOME-CAR-Stereo ... -
BETA-DISC (TR-DOS) support in ZX emulatorsBETADISC 128 is original device designed for external use with ZX Spectrum 128/+2(grey). Russians ZX clones (Pentagon, Scorpion, ZX profi, Quorum, ZX…
... profi, Quorum, ZXM Phoenix, ...) contain internal BETADISC clone on board, but ... in modes Pentagon,Scorpion,.. and disable TR-DOS in modes ZX128 ... -
Need a new speaker for my rubber key speccyBought a rubber key speccy over a year ago. Was in very good condition but noticed no noise when pressing keys. I took the little speaker out and hav…
... keys. I took the little speaker out and have since lost ... -
Internal ROM expansionHas anybody designed a multiple-ROM interface that plugs into the internal ROM socket instead of plugging onto the edge connector? It would be useful…
Has anybody designed a multiple-ROM interface that plugs into the internal ROM socket instead of plugging onto the edge connector? It would be useful not having something dangling off the back of the Spectrum. -
ZX81 Internal Memory UpgradeAnyone here ever done it? Im looking to add 16k of internal memory, pretty sure I know how to do it, just what parts do I need? (and where to get t…
Anyone here ever done it? Im looking to add 16k of internal memory, pretty sure I know how to do it, just what parts do I need? (and where to get them?) -
Internal amp and signal cleaner for tape inHello! Is there known to work INTERNAL schematic which cleans signal from tape in and amplifies it. I need such thing so i can load from my smartpho…
... /> Is there known to work INTERNAL schematic which cleans signal from ... want the thing to be internal have not problems with cutting ... -
BIFROST* Advanced Programming - part 1In BIFROST*, it's much easier to just make changes in the tile map and let the engine automatically draw & animate everything in multicolor for you. …
... may decide to access BIFROST* internal routines directly, for the reasons ... /P to change");
// disable entire tile map
for ... -
Replacement Speaker?Can anyone suggest a suitable replacement speaker for my ZX+ ?
Can anyone suggest a suitable replacement speaker for my ZX+ ? -
SPECTRA - RGB SCART Interface for 48K SpectrumSince the launch of the SPECTRA interface back in June 2012, some discussion of it has appeared in the forums in the past (mainly [URL="http://www.wo…
... and clear through the TV speaker(s).
The SPECTRA ... to override the Spectrum?s internal ROM.
[*] The ability to ... -
My FrankenspectrumHey all, I originally posted this on the Raspberry Pi forums, but thought people here might be interested also. Inspired by the guy on Flickr who m…
... .jpg[/img]
Two speaker cutouts...
[img]http ... [/img]
New internals. Internal 4 port hub, 2 ports ... is connected to the existing speaker location on the right, which ... -
Z80 internal compressionThis isn't exactly a ZX Spectrum problem, but since WOS probably has some of the best Z80 coders in the world, I thought I might ask anyway. For my …
... ], I need to write an internal cruncher which writes compressed data ... -
Fuse for Mac OS X 1.1.1 ReleasedA new version of Fuse for Mac OS X has been released at the dedicated sourceforge project and shortly here on WoS: [url]http://sourceforge.net/proje…
... /> [*] Any changes that enable and disable peripherals may result in a ... 't enough to drive the speaker (Fredrick Meunier).
[*] Mirror Interface ... -
No sound from speaker.Help! My trusty 48k has stopped giving me sound out of the speaker. It does however give me sound from the EAR socket. I've tried swapping the spea…
... me sound out of the speaker.
It does however give ... /> I've tried swapping the speaker over with 2 other Speccy ... -
Hardware description - MULTIFACE 3[B]Hardware description - MULTIFACE 3[/B] This is description of MF3 clone, because I can't find more about original interface. Schematic and PAL ch…
... ZX rom is active and internal state of port #1FFD sign ... #0066. If detected then disable MAGIC button and connect external ... 0) + enable MAGIC button + disable reading of ports #xx3F
disable MF3 memory. This ports ... -
DIY Issue 1 Internal 32K RAM expansionFollowing on from the information in [URL="http://www.worldofspectrum.org/forums/showthread.php?t=40173"]this[/URL] thread, I finally figured this ou…
... version of the Issue 1 internal RAM module.
The ... -
Wanted: English native speaker to correct my HW manual (2 pages)I have just finished english version of manual for one my Speccy HW piece. Can an English native speaker check/correct it? It is 2 page text in OpenO…
I have just finished english version of manual for one my Speccy HW piece. Can an English native speaker check/correct it? It is 2 page text in OpenOffice format. I will send it by e-mail or PM.
Thanks in advance
Jiiira -
ZX81 internal RAM board?Just a quick question to Zorn (amongst others). What would the issues be with fitting one of Zorn's RAM boards into an unexpanded ZX81? Seems to me…
... the official RAM pack's internal circuitry is to generate and ... -
New MEMFACE projectMEMFACE is my old project, but never finished. Now is PCB done (at the post office) and I write firmware for CPLD. MEMFACE is interface with external…
... /> - external rom can full replace internal zx rom and enable connection ... /divmmc/+D,etc...)
- can disable external memory on next connected ... -
FUSE v1.1.1: How to disable red tape icon down on right side screenDoes somebody know how I can disable the red tape icon down on the right edge of the screen. I use Fuse SDL v1.1.1 on the Raspberry Pi (RetroPie). I …
... somebody know how I can disable the red tape icon down ... -
Howto disable Multiface on SpecEmu for taking native Beta48 Snapshot ?Is there a way to disable MF on SpecEmu for taking native Beta48 Snapshot in CBI-95 Disk Emulation (=Betadisk 48) ? Each time I send NMI Button o…
Is there a way to disable MF on SpecEmu for taking native Beta48 Snapshot
in CBI-95 Disk Emulation (=Betadisk 48) ?
Each time I send NMI Button on SpecEmu, Multiface menu opens...
