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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…
... for new software only and old software could just use the Z80 CPU ... system then with a fast CPU and VDP :)[/QUOTE]
z80 in that case).
Z80 was though. -
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…
... />
Thats not a new Speccy, thats a PC looking ... Speccy. A new Speccy would be cool with a 21MHz Z80 CPU, maths ... RAM and the original and new ROM chips. all fitted into ... -
RAND USR that doesn't work in emulators and clonesEons ago, I "discovered" a strange RANDOMIZE USR. This is it: [b]RANDOMIZE USR 46578[/b] Using it on a genuine ZX Spectrum rubber key or Plus model,…
... . Position 000 belongs to this new ROM.
The program ... .
[B]Zilog Z0840008PSC. Z80 CPU, 8MHz[/B]
Cold ... />
[B]Zilog Z0840020PEC. CMOS Z80 CPU, 20MHz[/B]
Cold ... -
writing an emulator-newbie needs helpHi, this is my first post here. I decided to write a minimalistic emulator of ZX Spectrum-no emulation of advanced peripherals, no emulation of sound…
... didn't generate a new carry and we never ... obvious to me no new carry can occur. Why ... manuals I use ("Zilog Z80 CPU user's manual", Zaks' ... "Programming the Z80" and Sean Young's ... "The Undocumented Z80 Documented") are pretty inconsistent ... -
writing an emulator-newbie needs helpHi, this is my first post here. I decided to write a minimalistic emulator of ZX Spectrum-no emulation of advanced peripherals, no emulation of sound…
... addition/subtraction I finished my CPU emulation (only official list of opcodes ... .
2. What about emulation testing applications? I found a ... package where Zexall was a .z80 file-maybe that's the ... it allow me to load z80 files or will I still ... -
Fuse: what do you want to see?An open brainstorm. If you had a team of programmers working on [url=http://fuse-emulator.sf.net/]Fuse[/url], what would you tell them to work on? …
... " not the actual core speccy emulation.
(course you could ... "finished" as people keep discovering new z80 or ula behaviour just to ... -
ZXDS questions...Hi Folks, I am hoping someone on here knows something about [B]ZXDS[/B]. I have downloaded the program to my daughters [B]DSi[/B] (for testing purp…
... , maintaining the 50fps means the emulation is being slowed down to ... two options:
Z80 CPU speed
Emulation speed
where ... basically equivalent to just the emulation speed setting then?
List of existing games that needs a port to zx spectrumPlease post here the games that exist in other platform(s) but does not exist in speccy. Please keep in mind this is not a to-do list, so don't hesti…
... your case and solder a new processor or board in!"
new tricks or is it simply ... better hardware like a faster Z80 CPU, more RAM, better sound chip ...List of existing games that needs a port to zx spectrumPlease post here the games that exist in other platform(s) but does not exist in speccy. Please keep in mind this is not a to-do list, so don't hesti…
... existing hardware with better coding/new tricks or is it simply ... better hardware like a faster Z80 CPU, more RAM, better sound chip ... and/or dedicated Z80 video chip?[/QUOTE]
writing an emulator-newbie needs helpHi, this is my first post here. I decided to write a minimalistic emulator of ZX Spectrum-no emulation of advanced peripherals, no emulation of sound…
... I'm officially done with cpu implementation. I thank you all ... 't many mistakes in my cpu emulation code (maybe 5-6 distinct ... help me again if any new problems arise while I implement ...writing an emulator-newbie needs helpHi, this is my first post here. I decided to write a minimalistic emulator of ZX Spectrum-no emulation of advanced peripherals, no emulation of sound…
... I'm officially done with cpu implementation. I thank you all ... 't many mistakes in my cpu emulation code (maybe 5-6 distinct ... help me again if any new problems arise while I implement ...[NEW] Speccy for Android ReleasedHello, All! A while ago, I have released the Android version of [i]Speccy[/i], my ZX Spectrum emulator. It emulates Spectrum 16k, 48k, 128k, +2, +2A…
... I guess it's a CPU emulation issue.[/quote]
Probably has ... easier to simply use a .Z80 or .SNA snapshot for now ...Help I killed my +3...I replaced the drive belt on my +3 and gave drive quick service. Upon booting everything was fine and one of the discs I bought went in and I heard…
... remained.
Swapped over z80 CPU... booted up absolutely fine, the ... just need to get a new CPU for the 2b and maybe ... a new psu as I reckon that ... what might have killed the CPU in the first place.
Weak/no signal on internal simple 8-bit ide interface.Hi all, I'm trying to get one of Zetro's 8bit ide interfaces working using a CF adaptor and the +3e roms on my +2B. The interface board appears to b…
You can get a brand new Z80 no trouble at all.
... . I do have a Zilog CPU though.
How are ...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 CPU emulator? There is way more work and code in Z80 emulation ... part than in actual ZX Spectrum emulation in ... emulator there is just Z80 emulation code, screen memory conversion ... way to go. Otherwise, write Z80 emulator first.
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 CPU emulator? There is way more work and code in Z80 emulation ... part than in actual ZX Spectrum emulation in ... emulator there is just Z80 emulation code, screen memory conversion ... way to go. Otherwise, write Z80 emulator first.
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 …
... code.
As for cpu emulation - while it's conceptually easy ... or even triple-checked initial cpu implementation (only official instructions) still ... luck to you and happy new year to everyone.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 …
... code.
As for cpu emulation - while it's conceptually easy ... or even triple-checked initial cpu implementation (only official instructions) still ... luck to you and happy new year to everyone.[/QUOTE]
Harlequin clone...PCB manufactured!Using Chris Smith's detailed schematics and project notes from the Harlequin... a Speccy fan in the United States by the name of Don (Superfo) has de…
... CMOS as will be a new Z80. (The original Spectrum ULA is ... some heat, and the original CPU is NMOS).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…
... SPIN is unusable for DivIDE emulation, contain bugs and some systems ... 0 to 3. Also add new Z80 snapshots for direct install:[/U ...Embarrassing MHz question....(Hangs head in shame; you may throw tomatoes and mouldy fruit at me.) What is the standard speed (exact please!) of the Z80 CPU in a 48K ZX Spectrum…
... -> 48 K
Emulation -> Z80 CPU Speed = 3.54MHz
Z80 -> CPU Speed -> 3.54 MHzMy divide killed my toastracknow it boots with garbage and z80 overheats a lot will replacing z80 solve it , or something else can be bad?
... ]
Logically, assuming the Z80 is burned out and there ... , I would test the suspect Z80 in the working machine. It ... . The problem with putting a new Z80 in the dead machine is ... which could potentially damage a new CPU. Burnouts are more likely than ...My divide killed my toastracknow it boots with garbage and z80 overheats a lot will replacing z80 solve it , or something else can be bad?
... =aowen;626593]Logically, assuming the Z80 is burned out and there ... . The problem with putting a new Z80 in the dead machine is ... which could potentially damage a new CPU. Burnouts are more likely than ... risk.[/QUOTE]
the cpu is not socketed, so it ...Z80 new old stockHi. I found this on eBay but ... is there a way we could know they don't hav a faulty M1 line? [url]http://www.ebay.com/itm/Zilog-Z80-CPU-Z0840004PS…
... have used Zilog CMOS 10MHz Z80's from ic-china in ... .l2559"]UTSource[/URL] has some new ones for a good price ... as well, but not for Z80 CPU's.
I have ... a few Zilog CMOS 20MHz Z80's, hence my earlier question ...Pentagon RAM memoryDoes anybody know or have reference to technical docs, how no contention on RAM access is achieved in Pentagon 128K clone ? Looking at schematics it …
... core is ready with real Z80 CPU !!!
Good point is that ... a bit OT), finally the new core is out for testing ...ZX Spectrum + 2 128K - Video Issue?Hi All, I have just picked up a secondhand +2 and am having a problem with it. :( When I power the unit on and hook it up to my TV with the RF cable…
... section is faulty, or the Z80 CPU is faulty. Both are fixable ... , so far got a new power supply, new RGB cable and still ...SCF/CCF flags - new discoveryI can't believe that no one is interested in discussing the additional, previously undocumented internal state of the Z80 CPU I have discovered recen…
... [URL="http://www.z80.info/z80arki.htm"]Z80 CPU architecture[/URL]
... br />
For emulation purposes, there's this " ... how accurate Z80 emulation is. If a Z80 emulator passes ... emulation purposes. And might even show differences between real Z80 ...New Z80 CPU emulation testerI have finally wrapped up the new [URL="http://zxds.raxoft.cz/taps/misc/z80test-1.0.zip"]Z80 tester package[/URL] I have previously announced in [URL…
... some real machines with the new test package.
Z80 CPU.
All ... a +2a with a Zilog Z80 CPU.
... with a NEC D780c-1 Z80 CPU, the results are:
... 5B2237AE
-Z80 MEMPTR TEST
- All tests ...
