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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…
What test was that ZXbruno?
... we discover the line the contention starts, then we'll have ... .
Anyone got a convenient test?
[i]Edit: What ... -
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=csmith;346002]What test was that ZXbruno?
... the result of the first test. Here's what Fred said ... 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 ... .
Anyone got a convenient test?
[i]Edit: What ... -
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=csmith;346002]What test was that ZXbruno?
... hacked some of Phil's contention testing code from fusetest that ... probes the contention pattern at a given tstate ... -
Brand new River Raid remake?one of my friend is trying to make a riverraid remake on flash just to have fun, I checked zx spectrum port of river raid. it is bad, really bad, jer…
... a little less video memory contention than previous 128K machines, so ... are you claiming have less contention on the +2A/+3 than ... the 128K/+2? (Assuming IR is not pointing to contended ... , there will actually be more contention on the +2A/+3 for ... -
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.
... (0xfe)
High port contention 2... failed (0xfe)
... |-------------------------------------------------------
| Emulator | Fusetest | Z80 Test Suite | Total |
|------------------|----------|----------------|-------|
| ... -
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.
... /> |-------------------------------------------------------
| Emulator | Fusetest | Z80 Test Suite | Total |
|------------------|----------|----------------|-------|
| 1 ... 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.
... ]
Because Woody's test reads from the ROM, and ... .
[quote]"High port contention 2". I need to keep ... -
The So What's This Buzzsaw All About Then? Thread.Erm. This: [URL="http://www.joefish.co.uk/speccy/Joefish_Buzzsaw_Demo_1.tap"]http://www.joefish.co.uk/speccy/Joefish_Buzzsaw_Demo_1.tap[/URL] Keys…
... each line, allowing for some contention. The Pentagon version takes exactly ... T-states per line, without contention.
I'm not ... 'm using ZX SPIN to test this, and so far it ... -
Need help with interrupts againI'm fighting to understand how interrupts code handling works I'm trying to set my simple own interrupt routine, as I don't want to be dependent on …
... ? all?) models. This is because IR appears on the address bus ... the ula into thinking bus contention occurs. At least that was ... -
iXpectrum 1.1 added touch keyboard and ULAplus support.Hi, a new release for iXpectrum. ;) I added a touch keyboard in landscape and portrait mode. I think it is very usable and let you play text adventu…
... 3gs or you could disable contention mode to gain some fps ... dont have a 3gs to test properly.
4/ I ... -
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…
... of tests to check the contention values I added to our ... which differs from the "fuse-test" currently used to check for ... I will do a diff test suite for the 128,+2 ... -
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/z80/tests/]FUSE Z80 test suite[/url] for tracking this ... single thing that they test for, such as contention, it's easy ... enough to write your test code to ... -
Genesis: dawn of a new day, new game from RetroWorks!It's been a long development, but finally we made it. We proudly present the latest game from RetroWorks, Genesis: dawn of a new day. [img]http://ww…
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Of course I did test it :). Both the toastrack and ... (to check the different RAM contention effect). If there is any ... -
Spectaculator... is it worth the money?Hi Folks, This is a genuine request for feedback. I have used the demo version of Spectaculator and it seems a very good Spectrum emulator. Lots o…
... speed. Maybe its an inaccurate contention issue, maybe IY or IX ... spin when i want to test videos on CF card and ... -
Xmas / NY present for all ZX UsersHi there, wasn't sure where this should go, but this is a couple of years "work" during free time while not in the office. This is a package of 480 o…
... my +3e image I only test after I have completed a ... has a different contention pattern and no contention on ports so a ... -
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…
... ]Try to run fuse test when arrives I wonder ... ? passed
High port contention 1? passed
High ... (0x02)
High port contention 1? passed
High ... And running Woody's Z80 test suite, the failures on ... the flags test are:
[code]LD ... -
Push/Pop data copyingWe all know that stack pointer cheese and push/pop is faster to move data than LDIR - which in turn is slower than unrolled LDI's anyway. I rewrote …
... /taps/misc/multicolor.z80"]multicolor test[/URL] I did when I ... knew any details about the contention...
Patrik -
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…
... test on a 48K 6C ULA for comparison?
The contention ... MREQ going low latches the contention state until the end of ... the contention period - which suggests it has ... -
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…
... 't tried the same test on a 48 ULA, ... 1 all the time then contention isn't happed. I ... tested IO contention because A14 and A15 are ... shouldn't be a memory contention.
I ... pulses are missing. The contention period start at the third ... -
SAM emulators and save states ...Hi Is there now, or has there even been, a SAM emulator that can save/ load states? Moose
... was still missing proper memory contention, which will break some video ... MNEMOdemo 1 is a good test). That won't really affect ... -
Spectrum real speed testI don't have a real Spectrum, but I have a Romanian clone (HC-91). I always believed it was a perfect clone of Spectrum, but it turned out not to be…
I ran the test on ZXSpin with the 'No contention' option enabled and ... in speed.
The speed test does not use the contented ... , because if I ran the test on the video RAM, the ... -
Fairlight's use of LDIRYS, comparing Fairlight and Nightshade, said: [quote]Fairlight is much more interesting even though the techniques that Bo Jangeborg uses for screen…
... LDI can potentially suffer from contention, since all the following ones ... multiple of 8 (lenght of contention cycle). So the main benefit ... copy will be outside of contention time zones.[/QUOTE]
... that was a fairly crude test after a HALT, subtracting the ... -
Which Speccy game had best border effectsIn truth, I'm just trying to remember a game from my youth, and the amazing border effect during pause is the only thing I can clearly recall about i…
... itself is very hard to test. Get it wrong though and ... /timingtest-0.2.zip"]timing test[/URL] which I have created ... #post215794"]this thread[/URL] about contention.
Once you know ... -
Manic Miner ZX81Hi Guys, Can anyone explain why [url=http://www.worldofspectrum.org/infoseekid.cgi?id=0017539]Manic Miner ZX81[/url] is not able to reproduce the ex…
... ever have a chance to test true hires on real hardware ... 't fully emulate Spectrum 48K contention for instance), so the fact ... -
BUG in zxspin and SpecEmu - read Loading speed in WAV fileI'm created a new save, but it can run at 44.1 KHz, to test it, i make a new file from WAV 44.1 KHz to 88.2 KHz. Load this file in a emulator zx-spin…
... scheme (the speed i need test)
[IMG]http://i40 ... )/2=13)
Test it, get the last line ... speed.
I test this in excel, the min ... the test throw result of 88 KHz. I not add contention ... of ULA in this test, it's only ... -
Incorrect Spectrum +3 emulation: different results on Fuse and SpecEmuWhen developing and testing [URL="http://www.worldofspectrum.org/infoseekid.cgi?id=0027591"]Rotatrix[/URL], I noticed different results on Fuse and S…
... screen:
[INDENT]
[...]
Contention offset: 0x08
[...]
[/INDENT ... timing" machine. I guess the test now is to run fusetest ... -
Incorrect Spectrum +3 emulation: different results on Fuse and SpecEmuWhen developing and testing [URL="http://www.worldofspectrum.org/infoseekid.cgi?id=0027591"]Rotatrix[/URL], I noticed different results on Fuse and S…
The new test I posted [URL="http://www. ... EightyOne doesn?t emulate memory contention properly, so I doubt it ... for Alessandro Grussu?s next test, to compare the results? -
Incorrect Spectrum +3 emulation: different results on Fuse and SpecEmuWhen developing and testing [URL="http://www.worldofspectrum.org/infoseekid.cgi?id=0027591"]Rotatrix[/URL], I noticed different results on Fuse and S…
... Kendall;621235]I guess the test now is to run fusetest ... "]here[/URL]) to measure "contention offset" on a few emulators ... 1.0a: complains about "negative contention" :)
[/LIST]
Is ... that fusetest does not measure contention properly, and Spectrum +3 ... -
Incorrect Spectrum +3 emulation: different results on Fuse and SpecEmuWhen developing and testing [URL="http://www.worldofspectrum.org/infoseekid.cgi?id=0027591"]Rotatrix[/URL], I noticed different results on Fuse and S…
... emulators.
My test program [URL="http://www.worldofspectrum ... . In "late" configuration, the test adds a delay of 1 ... . In "SpecEmu" configuration, the test adds a delay of another ... have correct timing for memory contention but wrong timing for ...
