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ULA TEST 3 results on real hardwareHi guys, I'm writing small spectrum emulator and I wanna implement precise emulation for different spectrum models :-) I found nice test for conten…
... :-)
I found nice test for contended memory - [URL="http ... /> - ZX Spectrum+
- ZX Spectrum 128
Please post results ... -
New version (v0.31) of ZX DiagnosticsHi all,<br><br>Just wanted to let people know that I've released a new version of the Spectrum Diagnostics into the wild.<br><br>These were originall…
... and enhanced them to include 128/+2/+2A/+3 testing as ... nice features as a rudimentary ULA test, testcard for tuning VR1/VR2 ... pots, soak test facility etc.
Also ... -
ZX Diagnostics v0.35 ReleasedHi all, I'm pleased to announce the release of zx-diagnostics v0.35, downloadable from [url="https://github.com/brendanalford/zx-diagnostics/relea…
... 0, Spanish v1 and v2 128 ROMs, v1.43 +3E ... issue is detected in soak test mode
- Allow Kempston ... / ULA / soak testing
- Add countdown beeps prior to test start ... ULA test
- Handle rollover of soak test count properly
- Fix 48/128 ... -
128k dead, no TV signalI got 128k spectrum (heatsink model) from a friend of mine. He told me that speccy is dead, and he doesn't know what's wrong with it. When I plugged…
If the ULA is dead (or "wrong"), you ... always tell though since the ULA is responsible for so many ... a +2 ULA into their toast rack 128 and test the damn thing ... have the one toast rack 128 and I use it all ... -
128k dead, no TV signalI got 128k spectrum (heatsink model) from a friend of mine. He told me that speccy is dead, and he doesn't know what's wrong with it. When I plugged…
... a +2 ULA into their toast rack 128 and test the damn thing ... have the one toast rack 128 and I use it all ... -
128k dead, no TV signalI got 128k spectrum (heatsink model) from a friend of mine. He told me that speccy is dead, and he doesn't know what's wrong with it. When I plugged…
... +2 ULA into their toast
>rack 128 and test the damn ... have the one toast rack 128 and I use it all ... in 1985) has a AMSTRAD ULA. I remember it broke when ... issue 9G) that have this ULA.
You can see ... -
ZX Spectrum 128+ problemsHello!I recently purchased and got myself a spectrum 128+ from ebay.The item did not have an original power supply so i got a power supply of 9volts …
... /> [QUOTE=Msx2;199951]Unfortunately spectrum 128+ does not have a blipper ... I don't have an 128+ to test it)....
On 48K ... />
Ι've never seen any 128+ ula's being sold separately on ... , this is not a Spectrum 128+ compatible ULA, this is for Russian ... -
New version (v0.31) of ZX DiagnosticsHi all,<br><br>Just wanted to let people know that I've released a new version of the Spectrum Diagnostics into the wild.<br><br>These were originall…
... enhanced
them to include 128/+2/+2A/+3 testing as ... features as a
rudimentary ULA test, testcard for tuning VR1/VR2 ... pots, soak test
facility etc." ? How to ... -
If Sinclair computers had not been sold...I was just having a random thought. If Sinclair Computers (or the rights to them, not sure how it 'worked' back then) had not been sold to Amstrad…
... fix’ was incorporated in later ULA chips, but the original ... only hidden features are the ULA test modes. These have no ... The 6C001 and subsequent ULA chips had more matrix cells ... had ‘tidied up’ the ULA I/O address decoding ( ... A7 so that’s 128 I/O addresses it ... -
problem when game finished loading 128kI have this problem when some 128k games finishes loading. It just hangs, some time the screen gets corrupted, sometimes nothing happens. It looks …
... the vague (ish) built in test in the ROM. The fact ... one or both offer a ULA test, I'd guess there were ... /> Seems unlikely to be a 128 'incompatible' version issue but this ... you've not got another 128 machine to check with. -
Spectrum +3e acting up...Hello, Well, my Spectrum +3e is starting to act up. All 48k games load fine but now no 128k games will load :/ In one 128k game, in the beginning r…
ZX Diagnostics v0.33 releasedHi everyone, I'm pleased to announce the release of v0.33 of zx-diagnostics. This release contains the following changes: - ULATest: Detect …
... show ULA type, and new TR6 check
- ULATest: New tape test ...
- ULATest: New addressing test - check that ULA does not respond to ... Kempston/Sinclair joysticks to select test card/ULA test as well as soak ...Problem with RealSpectrumWhy am I having difficulty getting certain games to laod in RealSpectrum? The game seems to be loading ok then the screen goes black and nothing hap…
... someone with some real Speccy 128 models test them, just in case ?NTSC for Speccy? What would happen?Hi doods. I was just reading a bit there about the TEA2000 video encoder. I'm just talking theory here. What would happen if you... Cut pins 12 an…
... (if such thing like NTSC 128 ULA exists at all)
2 changes in ULA: 30 pics instead 25 pics ... per sec.
For 48K ULA it would need different V ...It's fitting...... that in the very month that the 25th anniversary of the Speccy falls on, I'm just finishing up making my first ever Spectrum peripheral. It's a …
... it will include a simple test (like the Spectrum ROM ... and finally run a test to demonstrate that the memory ... - basically, do a functional test in a sequence once the ... on the LEDs when the ULA test is done. If everything ... to RAM (the RAM test passed by this stage ...ZX Spectrum 128+ problemsHello!I recently purchased and got myself a spectrum 128+ from ebay.The item did not have an original power supply so i got a power supply of 9volts …
... /> Ι've never seen any 128+ ula's being sold separately on ... a solution since the ula on that one could ... is not a Spectrum 128+ compatible ULA, this is for Russian ... do need a new ULA, I have a few ... compatible with the 7K010E5 ULA in the Speccy 128.
...The definitive Spectrum project??We know that the Spectrum has been put almost to its limits after all these years of life, but I would like to know which would be the definitive pro…
... need to reverse engineer the 128 ULA).[/QUOTE]
Oh I ...More colours II (Was: Most popular new features?)The suggested 4xCLUT multi-colour solution never took off.
... . You'd need the 128K ULA for the memory paging, amongst ... /> You could replace the 48 ula with an upgrade with more ... /> Other than that, doable. :-) the 128 ula specifics are not difficult to ...Spectrum +3 suspected memory faultHi, I've been using my +3 for the first time in a while and found that some games have problems with the display becoming corrupted and sometimes cr…
Dunno if this thread may be of use to you:
[URL="http://www.worldofspectrum.org/forums/showthread.php?t=24467&highlight=128k+memory+test"]128 Memory test[/URL]Strangely, I just can't STOPOK, I bought an RWAP keyboard matrix and put it in my Spectrum+ last night (ta), I did the Swedish composite mod with a capacitor, I fixed the missin…
... screen with the flashing words "ULA TEST".
I've never ... to guess which kind of test it is performing. Might it ...The Never Ending Story (on a +3)I recently got a tape copy of The Never Ending Story, but it doesn't seem to load on my +3. Are there any known issues with this game and +3s/+2A/Bs?…
... came with the original 128 ?
Quick test: Try it in ...z88dk SP1 - any internal oddities?I'm just wondering if anyone knows if the Z88DK's spritelib SP1 has any oddities inside, for instance relying on specific timings, undocumented instr…
... 's a bug in the 128 ULA that can cause random crashes ... due to interaction between the ULA and the Z80 refresh mechanism ...z88dk SP1 - any internal oddities?I'm just wondering if anyone knows if the Z88DK's spritelib SP1 has any oddities inside, for instance relying on specific timings, undocumented instr…
... 's a bug in the 128 ULA that can cause random crashes ... due to interaction between the ULA and the Z80 refresh mechanism ...z88dk SP1 - any internal oddities?I'm just wondering if anyone knows if the Z88DK's spritelib SP1 has any oddities inside, for instance relying on specific timings, undocumented instr…
[QUOTE=AndyC;640826]There's a bug in the 128 ULA[/quote]
Let me stop you right there. The ULA is fine. The bug is in the HAL chip and it can be fixed by ordering a replacement GAL from Velesoft.Successfully updated Issue 2 48k to 128k?Thanks to the donation by PMSR and through the very patient teachings of Velesoft, I have updated the Issue 2 to work with 128k. However. I have yet …
... requires 128K (except IK+ 128). Tbios test with DivIDE says everything is ...Timex 2068 hi-color / hi-res modes.Hello. I know this is not a Timex forum but since it is a very close relative of the Speccy I thought I'd ask my question here. Does anyone know …
... wasn't the 2068 ULA very compatible with the ... differences because the original ULA uses a single clock ... they fixed it in the 128 ULA). So Timex used a clock ... 2068's equivalent of the ULA) with the same timings ... for the standard Speccy ULA.[quote]I thought the ...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, …
... :
[B][U]Toastrack 128 (ULA: 7K010E-5 8612, CPU: Zilog ... /> [U][B]Spectrum +2 Grey (ULA: Amstrad 40056 8630, CPU: NEC ...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, …
... :
[B][U]Toastrack 128 (ULA: 7K010E-5 8612, CPU: Zilog ... /> [B][U]Spectrum +2 Grey (ULA: Amstrad 40056 8630, CPU: NEC ... 48K machine with 6C001E-7 ULA all consistently returned 69888/YES ...Dot crawl?Hi, As I'm rather new to the hardware of the spectrum, just to confirm: is this video showing "Dot crawl" ? [url]https://www.youtube.com/watch?v=_U…
... Spectrum by slightly increasing the ULA clock frequency which is divided ... of 7000039.471365639 Hz. The ULA now produces slightly shorter lines ... sequence.
The Spectrum 128 ULA has 456 dots per line ...Spectrum 128 malfunctioning with DIVMMCI recently got myself a spectrum 128 (toastrack) and a DIVMMC card so I could load games from it. It all works fine until it has warmed up and then t…
If the ULA does turn out to be the problem, then you could try heatsinking the original 128 ULA, before looking for a replacement?
B
