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Detecting presence of AY?I'm working on my first little demo for the ZX Spectrum. At the moment I'm aiming to keep the memory requirements low enough that it runs on a standa…
... .
Now, can I somehow detect if the machine is a ... -
New software screenmode: aSmpI was planning to release this tool at Forever XIII, but they didn't accept it, this is my 30th year activity, my most ambitious work on zx spectrum …
... project made me understand how contention works, learned too many opcodes ... -
28-character wide multicolour(ish) on 48k SpectrumLong-time lurker here... I've always been interested in rainbow effects on the 48k Spectrum, mainly from a perspective of "Just what [I]would [/I]ha…
... crazy the moment the contention-free period starts. We ... mess around with the contention, so maybe you could ... at the start of the contention-free period
... at the start of the contention-free period
... the start of the contention-free period
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DivIDE 57c non-bootable when CF card insertedHello, I have a DivIDE 57c with a CF-IDE40 adaptor. When no CF card is inserted, the Spectrum boots, FATware 0.12 kicks in, detects 0 volumes and b…
... ON (power, active and card detect).
Any ideas on ... -
ULAPlus: showing different screen modes in one screenI wanted to write a demo showing the same screen, converted to various screen modes available on the Spectrum (well, a Spectrum clone capable of show…
... IORQ signal, thus confusing the contention handler.
I've ... -
Fusetest port 0x7FFD test resultsHi, I'm adding the Spectrum 128K emulation to my FPGA core running on the V6Z80p platform. I'm doing some tests; running Fusetest, the machine is se…
Robocop 3 and Spectrum 128K toast-rackHi all, we are going on with the tests on the new 128K emulator for the V6Z80p board, and we have found something odd: Robocop 3 (designed for the 12…
... does port accesses creating IR contention (as, if we are right ...fixing the economyDear Mr. Cameron, Please find below our suggestion for fixing the UK 's economy. Instead of giving billions of pounds to banks that will squander t…
I have a destroyed SpectrumI have a Sinclair Spectrum 128k +2. When I connect the computer with a monitor, coloured lines that flash on and off appear. How can I detect the de…
... off appear. How can I detect the defective part/parts or ...Any utility to calibrate +3 disc head?Hi! I'm trying to calibrate a 3'' disc drive. To acomplish that, these drives have a small screw that allows the track-0 detect system to be shifted …
... that allows the track-0 detect system to be shifted back ...JSSpeccy v2.0 releasedI'm pleased to announce version 2.0 of JSSpeccy! [url=http://jsspeccy.zxdemo.org/]Online version[/url] [url=https://github.com/gasman/jsspeccy2]Sour…
... unit tests, including memory/port contention, which means...
- 99% accurate ...Zymosis -- WTFPL'ed Z80 Emulation Corebreaking news! i'm back with another useless project: new Z80 emulation core written in pure C! i hear you screaming: "oh, no! WHY?!" let me tell yo…
... if it is really does contention and other things right; for ...Low level microdrive programmingSo I'm on my lunch break trying to find out about low level microdrive programming (without using IF1 ROM). I see one can use port 0xe7 to read and w…
... formatted microdrive?
How to detect end of tape?Spectrum 128k +2 (Grey) EAR modI have mounted a mono stereo jack in my +2 and am trying to connect it to get an external EAR port to load programs from my PC/MP3 player etc. I ha…
... , does nothing. It does not detect any signal when playing a ...X-OUT - universal TAP versionHere is TAP version of X-OUT with universal loader. Basic loader automatically set USR 0 mode, detect ZX48 or 128kB and load game. TAP is loadable on…
... automatically set USR 0 mode, detect ZX48 or 128kB and load ...(Re) building a ZX Spectrum laserharpThe Cambridge show is nearing, and I want to bring my laserharp with me. Why? Because it's built around a ZX Spectrum +2: [IMG]http://benophetintern…
... improve reflection), and the sensor detect the reflection.
When it ...TESTROM3 - utility/rom for test your ZXHere is TESTROM3 utility as 16kB ROM file + flasher for install this rom to divide eeprom (or mapram mode). Work also on ZX Spectrum without ROM and …
... memory. On ZX16 and ZX48 detect error (white and green border ... =blue,0=black).
If detect bad ram then show small ...A new ZX spectrum cloneOver the past 12 months i have been developing a new spectrum clone as a hobby project to waste my spare time on. It is still not fully complete yet …
... timings
Floating bus and contention emulation model (not cycle accurate ... the border shows up the contention model inaccuracy.
Things ... the BASIC extensions
Improve contention model to match standard 48K ...OpenSE BASIC disassembly?The [URL="http://www.worldofspectrum.org/infoseekid.cgi?id=0027510"]OpenSE BASIC[/URL] page provides a source code listing, however it doesn't really…
... as evidence to support the contention that OpenSE BASIC is a ...Where am I?I'm trying to order Nvidia 3DTV Play but the order page won't let me progress until I specify which country I'm in, which wouldn't be a problem if my…
... the form in case they detect in and think I'm ...Pentagon RAM memoryDoes anybody know or have reference to technical docs, how no contention on RAM access is achieved in Pentagon 128K clone ? Looking at schematics it …
Does anybody know or have reference to technical docs, how no contention on RAM access is achieved in Pentagon 128K clone ?
Looking at schematics it has to be simple solution, probably king of interleaving, but I could not find any details.Apple's "non-removable" batteriesHas anybody tried to remove and re-insert or exchange batteries on Macbook Pro laptops commonly known as the unibody type? I find tutorials showing…
... force OS X to re-detect the Airport card (don't ...SpecBAS 0.755 Now available!At last, here's the bugfixes you've all been waiting for! The last round of fixes which allowed proper error propagation in the file i/o routines re…
... ... use them. It should auto-detect your region settings and get ...Any xfire users on here?Xfire seems to have developed a serious bug of not updating game hours anymore. The forums are full of pissed off people claiming xfire can detect th…
... off people claiming xfire can detect the game but hasb't ...Zero 0.5 ReleasedAfter a bit of a hiatus, the next update of Zero is now available [URL="www.ramtop.wordpress.com"]here[/URL]. Feedback and bug-reports appreciated! …
... opcodes (Woody).
- Fixed IN contention (Woody).
- Fixed ULA PLus ...Timing in loading routinesJust for curiosity I have done some experiments with SAVE command in accurate emulators, and then analyzing the generated WAV and I have obtained lit…
... don't take account the contention. There are two instruction with ... contention, OUT (FE),A that affects ... compared with the teorical (without contention) values. If we take the ...DIVIDE versus ZX128 ROMDivide interface use hardware mapping of extra memory on this fixed points in 48rom: #0000 - power-on/reset/rst0/software restart #0008 - syntax erro…
... autodetection of zx rom type (detect if is active ROM0 or ....Z80 File Format when exported by SpecEmuI'm trying to parse a .Z80 file generated by SpecEmu but am getting a few discrepancies from [url=http://www.worldofspectrum.org/faq/reference/z80for…
... current standard and Spectaculator can detect/resolve discrepancies?
Cheers ...Fully-addressed devices initiative (FADI)I would like to introduce an initiative for those who create new pieces of hardware containing legacy devices with well-known addresses. It says that…
... interface (using port 31) should detect A0 to A7 and /M1 ... new AY sound interface should detect A0 to A15, and /IORQ ...
