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Guide price for a 48k rubberkeys from you lot?My trusty Spectrum (an Issue 3, working since late 1983 or early 1984) has finally upped and carked on me :-( Now I could hit ebay or the local boot…
... .
not many can test the M1 line I guess ... thats fixed with a new z80 ? -
Dead Spectrum SocietySo I'm getting back into real Sinclair computers rather than emulators. During the summer months I was lucky enough to buy a working ZX81 and was giv…
... is an easy way to test for damaged chips, but sometimes ... />
Well... if the temperature test doesn't work, and you ... , it could be that your Z80 is failing, or your ROM ... boot, but then hangs. ULA, Z80 and ROM seemed to be ... -
Requesting a little help to identify the purpose of this 'add-on' to my Issue 2Hi everyone First of all it's my first post here so please go easy on me! I'm grateful to be accepted into your fine little club :smile: I probabl…
... managed to find a small Z80 asm routine which fills each ... , thereby doing a rudimentary ram test. I assembled it to a ... same address for a bad test or whether it gives random ... -
New Flash Rom Board for +3 and Black +2As per the other thread I've now sold out of these boards. There is however the possibility of getting a new batch made, and at the same time making …
... his 8-bit boards to test with, however he's confirmed ... /> I am sending you an Z80 IDE Board when they get ... -
Castlevania ZX : what's going on?Hi to all! I love all the Castlevania series games and I also collect 'em on many platforms. I would like to see it also on ZX Spectrum. Some months …
... honest, as a beginner in Z80, and knowing sweet little as ... involved in helping to bug test the RetroInvaders game recently, and ... -
What paging scheme is the "standard" for 128K models?Sinclair implemented an arrangement so that even numbered pages are non-contended, and odd numbered pages are contended (quoting from memory, haven't…
... video signal
LOWER TRACE: Z80 INT signal
[img]http ... ]
Time for another test: what happens with memory? I ... disturb normal operation between the Z80 and the ROM, suggests that ... the corresponding buses at the Z80 side (which indeed must be ... -
Repairing a faulty 48K issue 2.I am investigating one of a pair of non-working issue 2 48K Spectrums that have been sitting in a cupboard untouched for quite a few years. I haven…
... surprisingly it needed a new Z80 and I identified a couple ... loading Chaos is a good test as the display corruption always ... here aware of any RAM test software for the Spectrum? It ... someone has a ROM based test, but that isn't too ... -
Writing an emulator - how to / resourcesI'm looking for a holidays project, and I'm thinking I'd like to write a simple Spectrum emulator. I've googled plenty and read some resources, but …
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Honestly: writing a Z80 core is monkey coding (as ... Z80 instruction set. 2) Use [url=http://en.wikipedia.org/wiki/Test ... -driven_development]test-driven development[/url]. ... Find a test suite ([url=http://fuse ... -
Writing an emulator - how to / resourcesI'm looking for a holidays project, and I'm thinking I'd like to write a simple Spectrum emulator. I've googled plenty and read some resources, but …
... Z80 instruction set. 2) Use [url=http://en.wikipedia.org/wiki/Test ... -driven_development]test-driven development[/url]. Find ... a test suite ([url=http://fuse- ... /fuse-emulator/trunk/fuse/z80/tests/]plug[/url]) and ... -
spectraNET 2012Hello, time ago I got a divIDE interface and found it awesome, not many IC and so amazing capabilities. Nowdays Internet is everywhere so I looked ar…
... just have no way to test it :)
As with ... to help :)
I need z80 coders, C coders, and testers ... -
FPGA ZX SpectrumJust wonder: how many of you would buy "new hardware based" and "in case" ZX Spectrum based on FPGA? ;) [url]http://www.fpgaarcade.com/[/url]
... /> The board mounts a real Z80 and a Spartan II FPGA ... faithfully emulated.
Some test results can be found at ... -
Testing Z80 op codesHappy new year all! I'm currently testing my Z80 emulator (hand written from scratch in C#) and I've possibly now gone insane, testing is taking hug…
... available with a checksum to test a Z80 assembler/ disassembler for correct ... -
Testing Z80 op codesHappy new year all! I'm currently testing my Z80 emulator (hand written from scratch in C#) and I've possibly now gone insane, testing is taking hug…
... duo of programs that tests Z80 behaviour for documented (ZEXDOC) ... and also undocumented Z80 instructions (ZEXALL), a pointer ... [URL]http://mdfs.net/Software/Z80/Exerciser/Spectrum/[/URL]
< ... for each clock cycle a test loop takes. Read: certainly ... -
A misbehaving DivIDE 57c (Now repaired)Hello there my fellow WoS'ers Indeed it has been a while since my last post, please let me wish you all a (belated) Happy New Year, my this year bri…
... the M1 line of the Z80 in the Spectrums is faulty ... brand new Z80 in the socket and redo the test. Or if ... any other device with NMI, test if they work with the ... Spectrums. If not, replace the Z80 CPUs. -
A misbehaving DivIDE 57c (Now repaired)Hello there my fellow WoS'ers Indeed it has been a while since my last post, please let me wish you all a (belated) Happy New Year, my this year bri…
... same problem.
[B]Test Equipment[/B]
[indent]
Z80 CPU with Good M1 and ... works with all the other test equipment
[/indent]
[indent]
[B][I]Continuity test the NMI [/I][/B]
divIDE x Spectrum clonesAnyone has a Spectrum clone and did a test with divIDE? Here in Brazil we have 2 Spectrum clones (TK90X and TK95) that are almost 95-99% compatible w…
TK90X is compatible with ZX48. Only rom is modified. I test this rom image in ZX emulator with DivIDE support and work correct. If DIVIDE not work with your TK90X then can be bad CPU Z80...divIDE x Spectrum clonesAnyone has a Spectrum clone and did a test with divIDE? Here in Brazil we have 2 Spectrum clones (TK90X and TK95) that are almost 95-99% compatible w…
... !
Didn?t work (changing Z80 and(or) disabling the pin ... special DIVIDE allram mode. Please test if this system is possible ...A z88dk + sp1 demo (with source)Since nowadays people are still wondering about how difficult it is to make something in z88dk, I thought I just put a very simple demo to show how e…
... you want to compile the z80 libraries yourself :- this includes compiling ... />
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Let's test the install! This will be ...New tool: SnapToTap R2it's basically a gui update to VSC. But it's now simpler to convert sna files into tap files. what is special about SnapToTap? it converts snapshots…
... command line app for converting z80 snapshots to run from a ... snapshots, I just need to test it a bit with the ...Broken +2 (Grey), need helpHello, I got a broken +2, and as I have tons of them working, I want to repair it without fear :D When I power up the machine the I see a horizontal…
... of other +2's to test so I start to replace ... horizontal bars image is typical z80 fault, and also friends at ... I go straight to the z80. I'll check it again ...MEMPTR: Is it worth emulating?Some advice if you will :) The only info I have on MEMPTR is this document here: [url]http://zx.pk.ru/showpost.php?p=43800[/url] I notice SpecEmu h…
... =http://www.z80.info/zip/z80-documented.pdf]The Undocumented Z80 Documented[/url ... back as Gerton Lunter's Z80. Is that not the case ... means you can pass a test suite that includes BIT n ... which is undocumented in the Z80 manuals. The code does something ...MEMPTR: Is it worth emulating?Some advice if you will :) The only info I have on MEMPTR is this document here: [url]http://zx.pk.ru/showpost.php?p=43800[/url] I notice SpecEmu h…
... of their way to deliberately test it. So much so that ... unofficial Russian clones of the Z80 CPU do not show the ...Quick OpCode Q...Leet emulat0r makerz.... I've seen two versions for this set of OpCodes, obviously they are undocumented.... FDCB d 40 BIT 0,(IY+d) (From Seans z80…
FDCB d 40 BIT 0,(IY+d) (From Seans z80 doc)
The instruction is to test bit 0 of (IY+d)
Dunno what the B is supposed to be for in the other instruction.SIDBlaster/ZX - new soundcard for ZX-SpectrumThis soundcard is for ZX-Spectrum compatible computers. It uses in its work MOS Technology SID soundchip, which together with MOS Technology 6510 mic…
... Spectrum in ouк city to test card on them. Theoretically, it ... ), or soldering wires directly to Z80 or ULA.... It is only ...Cheating games from FATWARE on DivIDEHere is patched versions of DivIDE system FATWARE 0.12(a)_POKE: [url]http://velesoft.speccy.cz/zx/divide/systems/fatware/fatware_012_(2012-01-02)_fo…
... Velesoft.
I have test that's :running tap ... Bytes:3
I test it and work correct. If ... After press NMI you can test via press "SS+P" ... "SS"+"P" then keyboard test detect also next pressed keys ... 3. Also add new Z80 snapshots for direct install:[/U ...Cheating games from FATWARE on DivIDEHere is patched versions of DivIDE system FATWARE 0.12(a)_POKE: [url]http://velesoft.speccy.cz/zx/divide/systems/fatware/fatware_012_(2012-01-02)_fo…
I test again with a new tab-z80, same result,maybe have problem with eprom chip,dunno..Double Dragon Remake: The Development ThreadOk guy's, so this is the new thread that will be focusing on Jim Bagley's development of the Double Dragon remake that was first proposed by myself a…
... /> I made a simple test program in asm which changes ... both in SNA and Z80 which gives 4 combinations ... B]
- in Z80 correctly distinguishes the models< ... B]
- in Z80 correctly distinguishes the models< ... 128
-in Z80 runs Spectrum128 snapshot and ...LZ77 en/decodingI've written an LZ77 en/decoding routine as I couldn't find one around for the Spectrum. Initially I'm just doing it in BASIC to get the logic right.…
... of the test runner, and a Z80 snapshot with the test runner, machine ... code and a test SCREEN ...
