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Spectrum won't load data when warmI've got an interesting observation. I put iPodLinux onto my iPod and got TZX files playing back as the proper audio waveform. I also removed the vol…
... nightmarish predictions of a faulty ULA chip and in the end ... headphones - be careful when you test it. Turn the volume pot ... -
The 128 plus 2 wasn't very goodHaving looked at the review in issue 33 of Crash of the Spectrum Plus 2, it strikes me as a bit odd, as if Simon Goodwin had to like it. I remember r…
... a major redesign of the ULA and without some extra CPU ... differently. This way, modification to ULA could be kept at minimum ... colour clash. But a lowres mode could be included with 128k ... -
The 128 plus 2 wasn't very goodHaving looked at the review in issue 33 of Crash of the Spectrum Plus 2, it strikes me as a bit odd, as if Simon Goodwin had to like it. I remember r…
... . This way, modification to ULA could be kept at minimum ... clash. But a lowres mode could be included with 128k ... could get a 144x192x4 colour mode in 6912 bytes, but ... and colour depth; a mode that's both blocky and ... with. If such a mode had been built into the ... -
The 128 plus 2 wasn't very goodHaving looked at the review in issue 33 of Crash of the Spectrum Plus 2, it strikes me as a bit odd, as if Simon Goodwin had to like it. I remember r…
... a major redesign of the ULA and without some extra CPU ... new graphics... since the Timex ULA with the extra graphics was ... time to do a new ULA. There's no way they ... haven't even tried to test it yet. -
The 128 plus 2 wasn't very goodHaving looked at the review in issue 33 of Crash of the Spectrum Plus 2, it strikes me as a bit odd, as if Simon Goodwin had to like it. I remember r…
... Timex 256x192 pixel, 32x192 attribute mode
4. The Timex ... trivial modifications to the existing ULA.
* Two atari ... .
* Add adjustable ULA interrupt so that it could ... could be synced with the ULA interrupt by some mechanism.< ... -
The 128 plus 2 wasn't very goodHaving looked at the review in issue 33 of Crash of the Spectrum Plus 2, it strikes me as a bit odd, as if Simon Goodwin had to like it. I remember r…
... Timex 256x192 pixel, 32x192 attribute mode
4. The Timex ... trivial modifications to the existing ULA.
[/quote]
We ... />
[quote]* Add adjustable ULA interrupt so that it could ... could be synced with the ULA interrupt by some mechanism.[/ ... -
The 128 plus 2 wasn't very goodHaving looked at the review in issue 33 of Crash of the Spectrum Plus 2, it strikes me as a bit odd, as if Simon Goodwin had to like it. I remember r…
... 128x192 four colour clash-free mode
[/QUOTE]
I ... modification (to the original graphic mode) which I think would have ... a major rework of the ULA (or would it)? Another option ... a 3.5 MHz compatibility mode - which would then enable the ... -
The 128 plus 2 wasn't very goodHaving looked at the review in issue 33 of Crash of the Spectrum Plus 2, it strikes me as a bit odd, as if Simon Goodwin had to like it. I remember r…
... a major rework of the ULA (or would it)?[/quote]
mode - which would then enable the ... -
The 128 plus 2 wasn't very goodHaving looked at the review in issue 33 of Crash of the Spectrum Plus 2, it strikes me as a bit odd, as if Simon Goodwin had to like it. I remember r…
... during ULA memory access.[/quote]
Actually, a double speed mode ... since it requires a faster ULA, RAM and CPU. Contention ... deal depending on what graphics mode. Clock cycles could be ... new, more memory intensive video mode.
[quote]The ... -
The 128 plus 2 wasn't very goodHaving looked at the review in issue 33 of Crash of the Spectrum Plus 2, it strikes me as a bit odd, as if Simon Goodwin had to like it. I remember r…
... br /> Actually, a double speed mode throws off a lot of ... deal depending on what graphics mode. Clock cycles could be alternated ... new, more memory intensive video mode.
[/quote]
... just run the ULA slower in 3.5MHz mode, with contention, ... -
Programs detecting Spectrum modelsHi. I'm curious about knowing how some speccy games detect if they are runnning in a 128k or 48k model. What tricks can be used to make this in a Spe…
... TMG that's used to test which computer you're running ... have a +2 in 48k mode, for example.
I ... -
SpecEmu test release (particularly for W2K users!)Can anyone running Windows 2000 give this a try and see if it runs ok? [url]http://homepage.ntlworld.com/mark.woodmass/SpecEmu24.zip[/url]
... only real reason for this test version was to see if ... real estate when in fullscreen mode back when I started the ... -
Spectrum RAM Paks...This jogged my memory (excuse the pun!!) : [url]http://cgi.ebay.co.uk/CURRAH-32K-RAM-PACK-BOXED-SINCLAIR-ZX-SPECTRUM_W0QQitemZ150057889352QQihZ005QQ…
... you type it into 128 mode it still gives the value ... it has during the memory test at boot up and if ... -
Timex Sinclair 2068Hi guys. This is my first post here, the first of many, I hope.. :) I have a Timex Sinclair 2068 but don?t know much about it. It was given as a gif…
... there and downoaded "Penetrator". (didnt test yet) Now got some other ... a 256x192 pixel 32x192 attribute mode. Unfortunately very little software was ... written using the hi-colour mode: [URL="http://geocities.com ... ; it was just a test program for the hi-colour ... -
Election of the new maintainer of the TZX formatHi folks, the topic says all, let the discussion begin :) Luca
... don't have time to test every possible combination of hardware ... is perfectly available from the ULA, and some loaders will use ... -
Election of the new maintainer of the TZX formatHi folks, the topic says all, let the discussion begin :) Luca
... don't have time to test every possible combination of hardware ... is perfectly available from the ULA, and some loaders will use ... -
Speccy dead? :-(I've been playing around with my Speccy and a Discovery disc drive unit, and tried to do the NMI modification to allow a multiface to be plugged into…
... me to test. Possible problems include ROM/RAM/Z80?ULA. Assuming you ... -
Nooooo my speccy died!??!!Hi! I am quite sad. :( Tonight I got a kempston interface so I rushed home to try it on my spectrum+ The edge connector of the interface was narrower…
... thing I would do is test the ULA. Then take voltage readings ... the RAM. If good, then test the 4116 RAM chips, then ... -
Nooooo my speccy died!??!!Hi! I am quite sad. :( Tonight I got a kempston interface so I rushed home to try it on my spectrum+ The edge connector of the interface was narrower…
... 40%
ROM 40%
ULA 10%
I know ... fixed them, always changed the ULA then checked the voltages present ... voltages are present, change the ULA and test the computer. It may ... , the cause being a damaged ULA. Unlikely but possible.
Nooooo my speccy died!??!!Hi! I am quite sad. :( Tonight I got a kempston interface so I rushed home to try it on my spectrum+ The edge connector of the interface was narrower…
... , all pass the test in the hardware checking tape (ULA, ROM, RAM ...Striker not working?I've downloaded Striker (by Cult) and it doesn't seem to want to run at all. Any ideas? I'm using Spectaculator and also DSpec on my nintendo DS. ht…
... work fine in +2(Grey) mode. I then ran it in ... ran...
Time to test it on my DS now ...ZX spectrum as a PC usb keyboard?One of my commodore brained friend showed me an interface which converts the keyboard of c64 to a standard usb keyboard. I quickly searched this for…
... ]And what about connecting ZX ULA chip on AGP port to ... for a keyword in 48k mode (admit it, we are all ...ZXSpin 0.61 Available nowHi all! Well, after a lengthy few testing cycles, I'm taking the plunge and uploading the latest version of ZXSpin, to replace the rather aged old 0…
... actual real-spectrum data - the test is flawed. Given that a ... cannot be sure that the test is carried out correctly. Also ... don't know what the test relies on.
Therefore ... the test, just flag effects. The .z80 file is in 48k mode ...zx81I have one ZX81 computer here at home which was given to me today. I?ve never had a ZX81 before and therefore have know nothing about it :) The thin…
... problems are possibly a bad ULA or Memory (maybe even a ... of known good components to test against.
MikeWFrom a book about commodore.."In April 1982, Sinclair released an improved computer called the ZX Spectrum. Compared to the C64, the Spectrum had few technical advantages. It ha…
... , fire off another sample run, test the chips and repeat until ... as well, called the ULA. The ULA is a sea-of-gates ... with a colour framebuffer. The ULA integrates some stuff that could ...Spectrum Issue two problemI managed to bring back to life a issue two spectrum (at least the power supply cirquit). The screen is now crystal clear (after replacing all the el…
... , CPU, and most of the ULA [I]should[/I] check.
test RAM) or even the EPROM ...Blowtorch method of Speccy repairsI just did my first Spectrum repair (and successful at that). It was the Issue 2 spectrum I wrote about a while ago, I just hadn't got around to doin…
... Sinclairs test program.
It performs tests on keyboard, sound, ULA, RAM ... or 128 ) so you can test Z80's M1 line (NMI ... all tests on Sinclair's test program) and when i pressed ...DivIDE and RWAP's DiwIDE*Opps, sorry, wrong forum, this thread must be in hardware topic.* I was planning to get a divide from Rwap, but I'm too afraid of long way the devi…
... when Divide is in RWAP mode the 128k snapshots fail to ... - whether you have the RWAP mode enabled or not, try saving ... a 128K snapshot file to test - can you send me one ... divide does not support 128K mode, I am not quite certain ...DivIDE and RWAP's DiwIDE*Opps, sorry, wrong forum, this thread must be in hardware topic.* I was planning to get a divide from Rwap, but I'm too afraid of long way the devi…
... - whether you have the RWAP mode enabled or not, try saving ... a 128K snapshot file to test - can you send me one ... divide does not support 128K mode, I am not quite certain ...DivIDE and RWAP's DiwIDE*Opps, sorry, wrong forum, this thread must be in hardware topic.* I was planning to get a divide from Rwap, but I'm too afraid of long way the devi…
... work when I disable "rwap" mode.
Infact after trying some ... work on the actual divIDE test boards (both loading normally and ... with and without the RWAP Mode enabled. This is testing with ... happens with / without the RWAP Mode.
You say they ...
