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ZX Spectrum 48K clone and test resultsHi! This is my first post, so, first of all, I'd like to say hello to the whole community! I am Alessandro Dorigatti from Italy and I'm developing …
... (ex. some tests in FuseTests, IR-Contention) and others show some glitches ... Fusetest is OK, IOcontention OK, contention OK, Float48K OK, FloatSpy OK ... br />
The first failing test is IRContention; I will try ... the text shown by the test and they are in the ... -
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…
... release (many added during the "test" phase):
- Added Pentagon ... more accurate "ULA snow" and IR contention. Note that truly accurate snow ... -
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…
... . However Spin 0.622 shows contention (presumably in 9th cycle of ... snow effect NOP test, and the lack of IR contention in Spectaculator for ... that specific test, was the ... -
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…
... .30 [/quote]
The IR contention was added to the 7 ... ) so that part of the test won't pass on 6 ... -
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.
... :-)
Also passes your IR contention in 48k mode.
test, not yours. Sorry. Woody also ... -
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. …
... .
I'm using contention as described by Chris in ... using a lot of the test software you suggested - I'll ... a real Z80.
IR-Contention does some very odd things ... -
New software screenmode: aSmpI was planning to release this tool at Forever XIII, but they didn't accept it, this is my 30th year activity, my most ambitious work on zx spectrum …
... ula emulation (including memory and ir contention). As you provide mlt image ... %25 more if I carefully test 16bit registers and cleverly sort ... -
Retroleum Nebula - A Spectrum ULA replacement moduleHey you guys.. Just wanted to mention a new Spectrum doobrie created by myself (Phil Ruston) and Alessandro Dorigatti: Namely, the Nebula - A Spec…
... have accurate timing? Did you test it with multicolor games and ...
- Ulatest3
- FloatSpy
- IR Contention (snow effect in place as ... -
Retro Virtual Machine is out!Fantastic emulator Retro Virtual Machine (@retrovm) is out today. It can emulates Amstrad/Sinclair models range. Give a try! http://www.retrovirt…
... failed the R register test and the IR contention test.
Thought it ... -
Retro Virtual Machine is out!Fantastic emulator Retro Virtual Machine (@retrovm) is out today. It can emulates Amstrad/Sinclair models range. Give a try! http://www.retrovirt…
... failed the R register test and the IR contention test.
Thought it ... />
What is the 48k contention test???? Where i can download it? -
Retro Virtual Machine is out!Fantastic emulator Retro Virtual Machine (@retrovm) is out today. It can emulates Amstrad/Sinclair models range. Give a try! http://www.retrovirt…
... failed the R register test and the IR contention test.
Thought it ... />
What is the 48k contention test???? Where i can download it ... -
Retro Virtual Machine is out!Fantastic emulator Retro Virtual Machine (@retrovm) is out today. It can emulates Amstrad/Sinclair models range. Give a try! http://www.retrovirt…
... failed the R register test and the IR contention test.
Thought ... />
What is the 48k contention test???? Where i can download it ... ]
Yes this test is for a NEC z80 ... />
I pass all the test from Patrick and all other ... -
Retro Virtual Machine is out!Fantastic emulator Retro Virtual Machine (@retrovm) is out today. It can emulates Amstrad/Sinclair models range. Give a try! http://www.retrovirt…
... failed the R register test and the IR contention test.
Thought it ... />
What is the 48k contention test???? Where i can download it ... pass now the R contention test but not the ir... I Will investigate ... -
Retro Virtual Machine is out!Fantastic emulator Retro Virtual Machine (@retrovm) is out today. It can emulates Amstrad/Sinclair models range. Give a try! http://www.retrovirt…
... a problem with the 48k Contention Suite program.
I ... /> Is not a bug. the IR contention test is triggering the Snow Effect ... -
Retro Virtual Machine is out!Fantastic emulator Retro Virtual Machine (@retrovm) is out today. It can emulates Amstrad/Sinclair models range. Give a try! http://www.retrovirt…
... /> Is not a bug. the IR contention test is triggering the Snow Effect ... -
Robocop 3 and Spectrum 128K toast-rackHi all, we are going on with the tests on the new 128K emulator for the V6Z80p board, and we have found something odd: Robocop 3 (designed for the 12…
... ) apparently does port accesses creating IR contention (as, if we are right ... -
RealXThis may be a dumb question but will RealX ever get released?
... bottom of the doc about IR contention, even if not directly related ... -
Growing up... Jasmin supports 128/+2 nowHi, all. New version of Jasmin is available (v0.11). It supports ZX Spectrum 128 and ZX Spectrum +2 models. Try it [URL="http://www.dustedpixels.co…
... is both why you get contention only for contended memory, and ... get things like IR contention and I/O port contention, neither of which ... with our best knowledge of contention: if you want the latest ... -
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. …
... to use the original ULA contention algorithm (as described in the ... you using the original ULA contention algorithm (as described in Chris ...
- Ulatest3
- BTime
- IR-Contention
- Shock megademo
- No ... -
Distinguishing between models?I'm running the risk of being pointed to the faq here, so sorry in advance. Something I'm trying out requires that the program can distinguish betwe…
... ]
You can test rom data. All this models ... Then better is hardware test = test adress space contention (slow ports, slow memory ... A0=1 is fast). Test of contention ports adress space will with ... 3 models is detected, then test if exist FDD ports - ... -
ULA bug and snowI am tryng to improve the snow emulation in FBZX wii but I do not have a real spectrum to test the results. I used the information taken from Harele…
... RAS cycle is suppressed for contention with the refresh, the ULA ... /> FBZX wii does not emulate IR contention, so these results should be ... -
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…
... . Details on which instructions require IR contention can be found [URL="http ... -
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…
... . Details on which instructions require IR contention can be found [URL="http ... any further info on the IR contention? There doesn't seem to ... assume I just take the IR register as a 16 bit ... -
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…
... any further info on the IR contention? There doesn't seem to ... ]
The Z80 places IR on to the address bus ... the ULA continues to see IR and contends as normal as ... all contended based on the IR value. -
Timing_Tests-48k_v1.0 results...Hello All, I ran these [URL="http://www.zxspectrum4.net/op_timing.php"]tests[/URL] on my emulator and some of the tests failed.. so I tried it on a …
... the tests. Well, it passes test 35 as long as ULA ... spent on figuring out the contention details [URL="http://www.worldofspectrum ... believe the point is to test the contention timing, not the emulation ... -
Timing_Tests-48k_v1.0 results...Hello All, I ran these [URL="http://www.zxspectrum4.net/op_timing.php"]tests[/URL] on my emulator and some of the tests failed.. so I tried it on a …
... the tests. Well, it passes test 35 as long as ULA ... spent on figuring out the contention details [URL="http://www.worldofspectrum ... believe the point is to test the contention timing, not the emulation ... -
128K memory bank selection to avoid contention issuesI'm currently developing a game and I'm trying to get my head around the memory contention issues of the various 128K/+2/+2A/+3 spectrum models in or…
... ROMs are fitted. You should test the features of hardware you ... 's interrupt service routine to test the contention, a more complete version ... -
Making sound using the BEEPER in AssemblyI had a look at the the documentation but it doesn't make sense to me. To make music just the beeper all I have to do is send ones and zeros to one o…
... the +2A/+3 apply port contention in a way that is ... piece of code that will test port contention? Something that would make ... -
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, …
... % right. We know when the contention pattern starts, but I have ... , however I have prepared new test which can be used to ... owner would run the ptime test from [URL="http://zxds.raxoft ... timing, please run the btime test from the same archive and ... -
Writing own emulator: Contention questionsHi! (I don't know if this message should be here or in Hardware) I'm trying to write my own emulator just for the sake of it, and I'm having pr…
... having problems understanding the memory contention in 48k, in instructions like ... /> In INC DE ( pc:4,ir:1 ×2 ) I totally fail ... why the IR register pair is being used there for contention.
