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Issue 4A, tests complete fine but get odd crashing problemHi all, I've got an issue 4A which has had all of its lower RAM replaced, TR4, TR5 as well as its CPU. It originally had quite high voltages (20-3…
... , TR5 as well as its CPU. It originally had quite high ... 't have been doing the CPU much good and after changing ... /> I've tried swapping the CPU and ULA with a known ... -
ZX-Uno first impressionsZX-Uno first impressions Hello: I received my ZX-Uno last Saturday and I wanted to give everyone my first impressions of this latest ZX Spectru…
P.O.W.As far as I know, a port of P.O.W. (Prisoners of War) from NHK, doesn't exist. [img]https://cld.pt/dl/download/61d19b5e-453b-489c-b17b-d3ed6fccd594/…
... :
[code]
CPU:
68000 CPU @ 9Mhz, generic CPU
Z80 @ 4Mhz ...R registerI'm cross-posting this as a spin-off of a [url="http://www.worldofspectrum.org/forums/discussion/52748/zx-spectrum-cartridges/p2"]thread in "Hardware…
... ) Register.
The Z80 CPU contains a memory refresh counter ... refresh control signal while the CPU is decoding and executing the ...ANN: Tipshop updated Sunday, 03 July 2016Sunday 03 July 2016 Welcome to the June update. In July (eh? Ed) * Andy Ford provided even more POKEs for Back To Skool and Skool Daze; a cheat …
... , Booty, Cauldron, Combat School,
Driller, Exolon, Glider Rider, Hunchback, Jack ...SMART card not workingHi all, I've got an issue 3 48k which appears to be working fine apart from with a Retroleum SMART card. The card (which works fine on my other Sp…
... from the connector to the CPU so I'm checking them ...Buying a new PCSo, here we go again, me posting for help about buying something. Shame you guys ain't on commission :)) Anyways. I've pretty much chosen everyt…
... Freezer 7 Pro Rev 2 CPU Cooler
2 x 4GB ...New game: ZoomBloxHi everyone, this is my first post here, so first off I'd like to say hello to the Spectrum development community :) I've been developing on an…
... graphics
- The relatively powerful CPU
- Its overall look and ... limited, therefore unrespectful of the CPU time instead :) )
[b ...Redesigning the ZX Spectrum 128k - A lifelong dreamHello, I am myPinballs (Jim) and i run a small business here in the uk making replacement 8-bit hardware pcbs for arcade pinball games as well as…
... my own range of replacement cpu and sound board hardware for ...Mastering flagsI'm little lost when different flags are set/reset after logic operations, and what conditions must be met. For example, [code] ld a, MODE…
... play.
Is "Z80 CPU User’s Manual" must read ...Incentive games official solution sheetsI have four official solution sheets for Driller, The crypt, Starting hints for Castle Master, Castle Master ( one solution ), Total Eclipse. I am…
... four official solution sheets for Driller, The crypt, Starting hints for ... photocopied and stapled, but the Driller one has the Incentive logo ...AY Sound Effects from WAVI'm wondering if someone has crossed this bridge already. There are a bunch of sampled sound effects in wav form that need converting to the AY ch…
... a lot of memory and cpu time. Ideally what is wanted ...Retromania: 40 years of the Z80 game coding contestAs usual, Retroacción is holding a coding contest for Retromañía (held in November), with cash prizes! This year we're celebrating the Z80 CPU's 40th…
... we're celebrating the Z80 CPU's 40th birthday with a ...Media Players and faking Android processorsDoes anyone know a reliable way of checking what processor is really inside something like an Android media player, short of opening the thing up? …
... insisted that I check the CPU via Kodi and it happily ... the box. I then installed CPU-Z to see if it ... being faked. Some reviews for CPU-Z also imply that it ...bizarre error on a grey ZX Spectrum+2 - the long search for a small problemHi, I got a ZX Spectrum+2 that worked a bit but crashed while loading or running 128k games. I installed a 128k-test-ROM that told me about RAM fa…
... ; obviously ok
* changing the CPU with different types (CMOS and ...A few questions about sound and keys in BASICIf I want sound in my BASIC game I have to use BEEP right ? It seems to lock up the CPU for far too long . On Arjun's page I found how to use CALL 94…
... seems to lock up the CPU for far too long . On ...New stable version ZEsarUX-4.2Hi everyone! I have uploaded a new stable version of ZEsarUX emulator, version 4.2. You can download it from: https://sourceforge.net/projec…
... continuously: waveform, ay registers, cpu stats, debug cpu, visualmem
Fixed ZXpand ...New machine added to ZEsarUXHi The following video shows the new machine I added to ZEsarUX and it will be on the next emulator version... I think it's not necessary to say w…
... .be/8czvSwHj5es
Only cpu emulation and display, no keyboard ...My re-creacton of the Z80 8-bit Universal IDEI looked into my draw with various bits & bobs for PC and I found there a CF-IDE adapter, HDD ribbons and two CF cards. So, I was thinking to myself,…
... connections and seemed that the CPU was not sitting properly in ...30 years later - Your personal favorite games of 1987Happy New Year everyone :) Looking back to 1987, which games would you choose as your top picks today? There was a lot of good stuff published tha…
... /> [*]Dragon's Lair II
[*]Driller
[*]Druid II
[*]Elevator ...Speccy won't bootHi all, I've got an issue 3 48k that won't boot properly. When I turn it on, it either does one of the two following things, it either displays a …
... />
Could it be the CPU? It runs through the tests ...Replacing z80Hi all, I've just finished removing my z80 and installing it back in in a socket. Surprisingly I haven't broken anything in the process and the sp…
... .
I socketed the CPU because the speccy doesn't ...Spectrum 48k Clock SpeedSo I was reading the [url="http://www.worldofspectrum.org/pub/sinclair/technical-docs/ZXSpectrum48K_ServiceManual.pdf"]Spectrum 48k Service Manaul[/u…
... single-IC central processing unit (CPU). It is
clocked at ...ZX Spectrum border and sound problemAfter recap stange problem with ZX Spectrum (issue 3b) with sound and border. See video at: [url="https://drive.google.com/file/d/0BwhYHKW6xjI-aVdMcE…
... slow. I was replaced ULA, CPU, ROM, RAM, (same thing with ...ZX Spectrum border and sound problemAfter recap stange problem with ZX Spectrum (issue 3b) with sound and border. See video at: https://drive.google.com/file/d/0BwhYHKW6xjI-aVdMcEY4ajVk…
... slow. I was replaced ULA, CPU, ROM, RAM, (same thing with ...The HL Register Pair Naming. An Observation.This isn’t really a question or a tip. Just an observation about the naming convention of the registers in the Z80 CPU. It seems that every register …
... the registers in the Z80 CPU. It seems that every register ... is just used by the CPU internally.In-game AY music and sound effectsI'm currently working on various aspects of a Spectrum game and thinking now about the sound side of things. I know you can use a utility like Vortex…
... care not to hog the CPU and cause the game to ...Help understanding the Z80.So I have a Z80 CPU and a 32k ram chip. I understand how they connect. (Data and address busses, chip select etc.) But how would i input information…
So I have a Z80 CPU and a 32k ram chip. ... into ram or into the CPU directly through the data bus ... I need to use the CPU/ ram.
Yes. I know ...Gunfright for C64 and more!After Knight Lore and Pentagram, Gunfright also arrived for the C64/128, Plus 4 and Atari 8 bit. The stunning speed, especially in the C64 version, …
... :
"Again this is all CPU grunt (the only hardware sprite ...SpecBAS 0.900 ReleasedAgainst my better judgement, here's 0.900. It's got lots and lots new, but mostly the new shiny is the editor. You can indent your code, you can e…
... , reducing the workload on the CPU.
... .
Further CPU reductions.
Reduced idle CPU usage due to ... string characters
Reduced CPU usage when idle and during ... , resulting in about 70% CPU saving
Changing the ...
