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RAM Diagnostic ROMhi all, i burn this ROM from here [url]http://www.fruitcake.plus.com/Sinclair/Interface2/Cartridges/Interface2_RC_New_RAM_Tester.htm[/url] and i a…
... bytes.
The RAM test program gives a red border ... track (trace), so check and test for open circuit and short ... .php?t=41071&highlight=contended&page=2[/url]
contended ram ic's
and ... -
RAM Diagnostic ROMhi all, i burn this ROM from here [url]http://www.fruitcake.plus.com/Sinclair/Interface2/Cartridges/Interface2_RC_New_RAM_Tester.htm[/url] and i a…
... ).[/QUOTE]
thanks nice test but i dint find any ... and new ram ics on contended ram ics 25-32, nothing ...
next thing to test is IC10 PCF1306P or ZX8401 ... -
Dataline check on Spectrum 128k +2 greyhi all according with this [url]http://tcg.speccy.cz/zoom/pics/plus2sch.png[/url] R22 pin goes to A14 wich is pin 43 of ULA and pin 4 of Z80 bu…
... and new ram ics on contended ram ics 25-32, nothing ...
next thing to test is IC10 PCF1306P or ZX8401 ... -
Spectrum 128K +2 problemhello, i am try to repair my spectrum 128k +2 grey, i remove all ram chips and i have some new ones spares, now i have remove all ram chips, i want …
... and new ram ics on contended ram ics 25-32, nothing ...
next thing to test is IC10 PCF1306P or ZX8401 ... -
Dataline check on Spectrum 128k +2 greyhi all according with this [url]http://tcg.speccy.cz/zoom/pics/plus2sch.png[/url] R22 pin goes to A14 wich is pin 43 of ULA and pin 4 of Z80 bu…
... and new ram ics on contended ram ics 25-32, nothing ...
next thing to test is IC10 PCF1306P or ZX8401 ... -
Brazilian TK90X and TK95SpecEmu provides explicit support for Brazilian TK90X. Other emulators provide indirect support (perhaps the "Spectrum 48K NTSC" option in Fuse?). Al…
... same (6 of 8 cycles contended), but it seems there is ... to be much more heavily contended. Obviously the IR pair must ... to tweak the test vectors a bit and test few other instructions ... -
Games with Music BugsI know there is already a thread about games with bugs (and indeed its a awesome thread), but I thought maybe it would be nice to open another one ju…
... ]Games that crash because of contended memory.[/thread][/QUOTE]
test all this versions:
- first ... -
another faulty zx spectrum +2 to fix!!!Hello to all, I'm new here... I have got a faulty +2 (gray) and start to try fix it... I have read the treads of xaris_sm and Pluto63 as background…
... , you now have a working contended RAM bank (which explains why ... 6.
Do each test by itself i.e. don ... once!
Any positive test means you have a faulty ... RAM chip. Any negative test means you have broken traces ... -
What do you think about Unreal Speccy Portable?Hi, spectrumers! Just wondering about subj. Unreal Speccy Portable has been ported to Windows/Linux/Mac/Symbian/Dingoo A320/Caanoo/WIZ/Android/PSP/…
... (Russian ZX Spectrum clone without contended memory) timings. Animation in some ... need me to do some test just tell me :D
Some thoughs about fast scrolling on 128 modelPlease, consider this article as technically interesting concept not a proven algorithm. ONE The fastest scrollers use long sequence of PUSH inst…
OK, let's test this. Suppose we are executing ... further. The memory is only contended during the screen drawing, which ... drawing time. If we get contended, on average, for 7.5 ...Some thoughs about fast scrolling on 128 modelPlease, consider this article as technically interesting concept not a proven algorithm. ONE The fastest scrollers use long sequence of PUSH inst…
... =introspec;707424]OK, let's test this. Suppose we are executing ... further. The memory is only contended during the screen drawing, which ... drawing time. If we get contended, on average, for 7.5 ...Contended Memory woes...Hello All, An iccle problem I have and was hoping one of you fine WoSers could bail me out again... :) I've noticed that my emulator is running sli…
[QUOTE=Korinel;707676]I implemented contended memory simplistically but I'm ... />
You can use this test [url]http://www.zxspectrum4.net ...Kiss Kill - a Spectrum music video from Candy Says and GasmanYou may remember [url=http://www.worldofspectrum.org/forums/showthread.php?t=43068]the preview[/url] of this from back in March - here's the final re…
... I had the chance to test it in my real +2A ... over which 128K pages are contended. I filled up the usual ... up using ones that are contended on the +2A/+3. I ... fix that by adding a test for machine type, and choosing ...Kiss Kill - a Spectrum music video from Candy Says and GasmanYou may remember [url=http://www.worldofspectrum.org/forums/showthread.php?t=43068]the preview[/url] of this from back in March - here's the final re…
... over which 128K pages are contended. I filled up the usual ... up using ones that are contended on the +2A/+3. I ... fix that by adding a test for machine type, and choosing ...Scrolling by 2 pixelsWhat is the fastest way of scrolling a Spectrum screen line by 2 pixels left or right? When thinking about it I've come to this simple solution: [C…
... ]
I didn't test it, but if my interpretation ... )[/B], when HL points to contended memory, should have a minimum ...Border art viewerRecently, we were working with diver/4d on border art. The idea was to push the techniques of drawing on the border to the limit and to see, how much…
... machines all I/O is contended. On the ASIC machines only ... are contended.[/QUOTE]
Yes, that would also be a good test ... . Or a test of the floating bus ...New version emulator ZEsarUX 0.6Hi I have uploaded a new version of my ZX Spectrum/ZX80/ZX81 emulator. Changes are: Added ZX Spectrum smp tape loading (raw audio) Added Image stab…
... 2,5GHz). As a simple test I took [url]https://www ... development! If you need to test some concrete things, just let ... tell you If you can test some features... As I said ... 'm working on timing and contended memory on spectrum/zx80/81 ...Fuse 1.1.1 releasedOn behalf of the Fuse team, I am pleased to announce the 1.1.1 release of Fuse. The changes from the recent 1.1.0 are relatively minor, mostly correc…
... instead, it would have been contended as well "for free" and ... ULA and the ULA is contended.
[quote]It ... emulation it was possible to test the HAM8x1 mode in software ...128K shadow screen?Hi How does the shadow screen feature work , and how can it be used?
... contention. Both screen banks are contended, along with two others. But ... . The others you can either test for (by seeing how much ...Fuse bug? Strange T state countingI was testing delay routine presented [URL="http://www.worldofspectrum.org/forums/showthread.php?p=214851"]here[/URL]. I'm reproducing its listing: …
... ]Is the stack located in contended ram?[/QUOTE]
This ... contended RAM, RET and RET NC show longer timing. After this test ... by return address stored at contended stack.
I'm ...Test screens for ZX PrismNot sure that this is *really* the right section for this request, but it's relating to new hardware I'm developing so let's start it off here - a mo…
... used. The data required to test if a pixel is 'paper ... dual port, so no more contended video memory :)Issue 4s - Not 'Jailbars' but lines alloverIt's not another 'Jailbars' question!, but I've got this Issue 4S that aside from the 'Jailbars' on the Paper area of the screen which I can live wit…
... contention.
A quick test: if your Spectrum has a ... in ROM, which is not contended. It disables interrupts, and the ... area, which is at non contended memory as well (provided that ...speccy 2020Yep, re-made speccy 2010 is ready.. it is called speccy 2020cr - soon preorder. small changes in design, big changes in layout :-) [IMG]http://mmj.p…
... interrupts (or possibly lack of contended memory) - but if other people ... software I can run to test for correct flag behaviour etc ...Banked memory running slower?I've just compiled a TAP which includes bank6, it loads ok, but the routines that are paged in run slightly slower. The Z80 snapshot has no such pro…
... custom ROM loaded. You should test the feature that is relevant ... say, and test to see if it is contended, if so switch ...Banked memory running slower?I've just compiled a TAP which includes bank6, it loads ok, but the routines that are paged in run slightly slower. The Z80 snapshot has no such pro…
... custom ROM loaded. You should test the feature that is relevant ... say, and test to see if it is contended, if so switch ... check to see if its contended?
Whats the symptoms ...Banked memory running slower?I've just compiled a TAP which includes bank6, it loads ok, but the routines that are paged in run slightly slower. The Z80 snapshot has no such pro…
... check to see if its contended?[/QUOTE]
Having ... whether a RAM bank was contended though you could load ... in the RAM bank to test until the next interrupt ... and another if it is contended.
I hope I ... long as you run your test code from the right ...Banked memory running slower?I've just compiled a TAP which includes bank6, it loads ok, but the routines that are paged in run slightly slower. The Z80 snapshot has no such pro…
... whether a RAM bank was contended though you could load a ... in the RAM bank to test until the next interrupt triggers ... and another if it is contended.[/QUOTE]
Although that ...Please explain Spectrum FPGA-clones to meI've been using the great ZXDS-emulator on the DS XL so far, which is great. But I kinda missed toying around with hardware. I've tried bidding on a …
... excellent choice for a quick test of something, or for someone ... I was using for non-contended Video RAM than was on ...Banked memory running slower?I've just compiled a TAP which includes bank6, it loads ok, but the routines that are paged in run slightly slower. The Z80 snapshot has no such pro…
... you whether the RAM was contended (slowed down) or not.
test code; when you do something ...AVR ZX Spectrum V2_0Good time! Glad to present my new development - AVR ZX Spectrum V2_0. Sorry, have no english version of this video. [url]http://www.youtube.com/watch…
... =Vasil;806162]It writes:
Test 0 [uncontended]
Early/Late ... ]
Result of this test is the same as UnrealSpeccy ... the original Spectrum models with contended memory?
Aquaplane working ...
