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Contention and floating bus timingHello, I was recently playing a bit with memory contention and floating bus stuff in ZXDS and there is one thing which puzzles me a bit. It is the d…
... = 0x4000 - 0x7fff AND MREQ high contention selection?[/QUOTE]
... 'll have to try few tests first, though.
... ULA, which applies less contention than the 48K ULA (specifically ... , it applies contention only if the MREQ line ... -
Contention and floating bus timingHello, I was recently playing a bit with memory contention and floating bus stuff in ZXDS and there is one thing which puzzles me a bit. It is the d…
... 'll have to try few tests first, though.[/QUOTE]
I ... where the 48k ULA applies contention when there is no memory ... the Wiki for example for contention points when there is IR ... -
Contention and floating bus timingHello, I was recently playing a bit with memory contention and floating bus stuff in ZXDS and there is one thing which puzzles me a bit. It is the d…
... IO contention and mem contention together and run a few tests:
Fusetest - all passed
contention - lots of FF in the ... implemented the T1 only mem-contention check.
[I ... Floatspy now returns 14347. Philips contention returns all 0's[/I ... -
Contention and floating bus timingHello, I was recently playing a bit with memory contention and floating bus stuff in ZXDS and there is one thing which puzzles me a bit. It is the d…
... predefined tests which are of interest for memory and IO contention testing ... -
Contention and floating bus timingHello, I was recently playing a bit with memory contention and floating bus stuff in ZXDS and there is one thing which puzzles me a bit. It is the d…
... ]The results for all the tests match those from Fuse, Spectaculator ... . However Spin 0.622 shows contention (presumably in 9th cycle of ... -
Contention and floating bus timingHello, I was recently playing a bit with memory contention and floating bus stuff in ZXDS and there is one thing which puzzles me a bit. It is the d…
... are the chances of IO contention not being applied at T2 ... . Also, the fact that all contention is supressed during TW and ... the tests I have performed prove that the 48k IO contention must ... as well as suppressing the contention during the following two T ... -
Contention and floating bus timingHello, I was recently playing a bit with memory contention and floating bus stuff in ZXDS and there is one thing which puzzles me a bit. It is the d…
... and tried a series of tests.
Barring the same ... to mean that some different contention scheme was applied to the ... paging doesn't disable the contention of the high range, port ... -
Quick testCould I ask anyone with a real 128K or +2 to run the latest [url=http://www.shadowmagic.org.uk/spectrum/fusetest.tap]Fuse test suite[/url] on it and …
... />
2. Most of the tests fail:
Frame Length ... )
High port contention: passed
High port contention 2: failed (0x02 ... -
Benchmark timeWell, the BASIC benchmark posted in Creative Computing back in the 80s came up as a topic on the AtariAge forums. The article is available online an…
... />
Well I see three tests; a speed test, a test ... also suffer from some bus contention caused by video refresh that ... on performance. The CPC's contention model has more impact -- the ... -
Emulator accuracy test?When I first created my emulator it worked fine. But then I found one or two games that had odd quirks. Eventually I found the flag or command that w…
... you talking about? The unit tests are well, [URL="http://en ... .wikipedia.org/wiki/Unit_test"]unit tests[/URL] and can't be ... , flag, memory location (and maybe contention and timing too, if possible ... -
Another fusetest runWould anyone with a real machine be prepared to try the latest version of [url=http://www.shadowmagic.org.uk/spectrum/fusetest.zip]fusetest[/url], my…
On a cold Timex TC2048
fusetest:
[CODE]
Machine type: 48K
Contention offset: 0x01
... memory... passed
High port contention 1... failed (0xff)
... High port contention 2... skipped (B=0x01)
Another fusetest runWould anyone with a real machine be prepared to try the latest version of [url=http://www.shadowmagic.org.uk/spectrum/fusetest.zip]fusetest[/url], my…
... +2
[ ... ]
Contention offset: 0x09
[ ... ]
contention offset of 0x08 ("early timings ... />
Thanks for doing the tests! Anyone else?Detecting Spectrum modelsIs there any sure-fire way a program can detect the model of machine it's running on (48K, +, 128, +2, +2A, +3, clones) even when running in the 48K …
... cycles between interrupts. The memory contention timings are also different between ... /writes combined with the timing tests to get an accurate measure ...Detecting Spectrum modelsIs there any sure-fire way a program can detect the model of machine it's running on (48K, +, 128, +2, +2A, +3, clones) even when running in the 48K …
... cycles between interrupts. The memory contention timings are also different between ... /writes combined with the timing tests to get an accurate measure ... [1] lets you know your contention pattern[2].
[1 ...Real 60Hz NTSC 48K ZX SpectrumNot a 3rd party mod. The joystick mod was added by the user, but the board and the computer is exactly what was sold in Chile, South America. We migh…
... we discover the line the contention starts, then we'll have ... .ae.krakow.pl/~jb/qaop/tests.html[/url] ?[/i]
Real 60Hz NTSC 48K ZX SpectrumNot a 3rd party mod. The joystick mod was added by the user, but the board and the computer is exactly what was sold in Chile, South America. We migh…
... .[/QUOTE]
Those 3 tests were requested by Fred after ... screen data and what the contention pattern is.
Could ...Real 60Hz NTSC 48K ZX SpectrumNot a 3rd party mod. The joystick mod was added by the user, but the board and the computer is exactly what was sold in Chile, South America. We migh…
... we discover the line the contention starts, then we'll have ... .ae.krakow.pl/~jb/qaop/tests.html[/url] ?[/i][/QUOTE]
Which is the most technically accurate Spectrum Emulator?Ok, which is the most technically accurate Spectrum Emulator? Please don't just vote but give reasons why.
... failed (0xfe)
High port contention 2... failed (0xfe)
0xbffd ... br />
SpecEmu passed all tests.
Fuse failed on ... So a total of 59 tests were performed (I discarded the ... two tests in Fusetest where all of ...Which is the most technically accurate Spectrum Emulator?Ok, which is the most technically accurate Spectrum Emulator? Please don't just vote but give reasons why.
... several instructions fail Woody's tests when executed on 128k or ... final ones, including "High port contention 2". I need to keep ...Which is the most technically accurate Spectrum Emulator?Ok, which is the most technically accurate Spectrum Emulator? Please don't just vote but give reasons why.
... several instructions fail Woody's tests when executed on 128k or ... .
[quote]"High port contention 2". I need to keep ... help with any of the tests.Ahh.. the tape loading era! by ate bit[url]http://www.pouet.net/prod.php?which=53846[/url] It is UNBELIEVABLE!!! Effects while loading, MUSIC while loading (and loading normal speed !!!…
... to fix as the Timex TC2048 doesn't appear to have ... . And the possibility that professional tests might show problems the average ...Have a real 48k Speccy? yes ? I need your help.Im looking to run this quick test on as many [COLOR="Red"](only)[/COLOR] 48k Spectrums as possible [B][COLOR="Red"]files moved[/COLOR][/B] [URL="ht…
... do ill post the real tests soon......
tests to check the contention values I added ... number wrong and so the tests were built to check the ...My emulator has a CPU bug, any ideas?.Hi all, I am writing a Speccy emulator in PureBASIC but have an odd bug. The spectrum interprets the odd numbers incorrectly whenever they are typed…
... /fuse-emulator/trunk/fuse/z80/tests/]FUSE Z80 test suite[/url ... they test for, such as contention, it's easy enough to ...Recent talk of developing new SpectrumsHi all, I can see from a few threads on here that some Wossers like Vasil and Aien 8 are interested in developing more powerful Spectrums or improvi…
... memory? passed
High port contention 1? passed
High ... failed (0x02)
High port contention 1? passed
High port ... memory? passed
High port contention 1? passed
High ... 1B66[/code]
MEMPTR tests: all failed.
...So what is the best Spectrum?I've had a search and even though i can remember a similar thread somewhere I'll twist it a bit. Whats the best "unmodified" Spectrum? (modification…
... 48 I/O Speaker
TC2048 1984 Portugal 3.5 16K ... and +2 have the 'wrong' contention and contend all I/O ... . My choice would be the TC2048. It's what the Spectrum ...Support of other SCREEN$ formats in ZX-PaintbrushDear readers, I've already implemented a nearly complete ULAPlus support in my developing version of ZX-Paintbrush. Works fine so far. But I asked m…
... that I can make some tests... I red something about the ... graphics modes then SpecEmu's TC2048 emulator will do nicely. However ...128K Contention - How to get it right?With my recent hardware hackery, I've built a 128K (toastrack) clone. I can't quite get the contention right though. What I'm lack is a clear descri…
... as I (supposedly) corrected the contention handling for IO where a ... understood the circumstances when IO contention is applied to the 0x7ffd ... /> [quote]The 0x7ffd and 0x3ffd tests are testing that [i]reading ...128K Contention - How to get it right?With my recent hardware hackery, I've built a 128K (toastrack) clone. I can't quite get the contention right though. What I'm lack is a clear descri…
... for comparison?
The contention circuit is a headache to ... . In your second and third tests, what happens if you don ... MREQ going low latches the contention state until the end of ... the contention period - which suggests it has ...ZXMMC+ emulation added to Z80p48K emulator for the V6Z80p+Hi friends! As time ago I've posted a thread about an FPGA clone for the V6Z80p board, I'd like to give an update about the status of the project. …
... you using the original ULA contention algorithm (as described in ... you to try the following tests (if you already didn't ... /> - Ulatest3
- BTime
- IR-Contention
- Shock megademo
- No ... .ae.krakow.pl/~jb/qaop/tests.html[/url]
[url] ...which zx-spectrum games uses 1bit sound samples?hi! I'm looking for zx-spectrum games using 1bit sound samples. Compairing with msx, which has far less games available than zx-spectrum, there are f…
... compare?[/QUOTE]
My tests have mostly been with the ... the emulator and my Timex TC2048.
I think the ... sounds reasonably similar to my TC2048 sitting on my carpet to ...
