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boot fail .. bad address lines A7,A12,A13anybody have any ideas what could be wrong with this specie issue 3B .. work done : removed rom, upper ram & logic put lower ram multiplexers in sock…
... been in one ) tried different CPU's & ULA's. fitted ... & address bus lines from cpu on ward for continuity .. A7 ... -
Missed opportunities in the 80'sAll the talk of the Loki got me thinking... What if someone had built an expansion box for the speccy that had the 3812 Yamaha music chip ( Adlib Sou…
... the original as a donor CPU, RAM and keyboard, doing away ... -
More "What could have been"... The Z280.So in chasing up the Loki specs, I happened upon some parallel developments... And had Sinclair gotten to make the Loki, there could have been some i…
... 486 was the first Intel CPU to have internal cache memory ... used this as an external CPU replacement, but it would have ... have been necessary is a CPU board slot ( like the Intel ... -
ZEsarUX 10.0ZEsarUX 10.0 is out! Download it from : https://github.com/chernandezba/zesarux/releases/tag/10.0 Changes: Version 10.0 - Clive Sinclair edi…
...
Improved Debug CPU Window:
-Added backwards debugging ... backwards run
-Added cpu history menu to see registers ... -Added setting to pause cpu emulation on menu when multitask ... access
Fixed cpu-step behaviour the first time ... -
zx spectrum +2A / +2B no clock signal or video display / gate array dead ?scratching my head with this sick specie .. it is a issue 4 .. i was hunting for R45 that goes between the clock signal of cpu and gate array,, but i…
... between the clock signal of cpu and gate array,, but i ... 74HCU04 and off to the cpu (i think it goes into ... 2(pin3/4) before the cpu but no sign of the ... -
New release of ZEsarUXFound today by chance on: [url]https://github.com/chernandezba/zesarux/releases/tag/10.1-13122021[/url] [quote]ZEsarUX-10.1 Beta1 Pre-release che…
... shell scripts
Improved Debug CPU:
-now it highlights which ... -
Zero v0.8Pigs can apparently fly because it's the v0.8 update of Zero that no one asked for but is out for public consumption anyway. Grab it [url="https:/…
... 0.8
----------------
+ Added CPU speed adjuster in addition to ... -
New discovery on Z80 interrupts.This is to announce the discovery of a new, hitherto unknown, behavior of the RETI and RETN instructions. As everyone knows, the maskable interrup…
... -flops (IFF1 and IFF2). The CPU does not accept this kind ... -
Built a ZX Spectrum that works, but can't get the upper RAM to work?Like the title says I finished my Spectrum 3B board, and it boots, but it doesn't see the upper 32k of RAM. When it boots, the lower 16k works f…
... (on both the ULA and CPU), however, the voltage is way ... -
Hardware Reference Manual for ZX SpectrumHi, I want to write games for ZX Spectrum in assembly language. I have lot of books in PDF format from SpectrumComputing. Still missing a book lik…
... palette
Blitter objects using CPU commands
Advanced BOB and ... -
Realspectrum againI have tried Realspectrum on a Celeron 400MHz PC, and I can get roughly 1 frame every two seconds. That's obviously ridiculously bad. I'm running it …
... seems to use much more CPU power.
So if ... -
Your favourite machine apart from The SpectrumI've asked this on a couple of other sites, so now it's time to ask it here: what is your favourite machine, forgetting about the Speccy? For me, it'…
... such. Most of that superiour CPU-power were wasted due to ... things that relied on the CPU, the C64 was definately better ... -
Your favourite machine apart from The SpectrumI've asked this on a couple of other sites, so now it's time to ask it here: what is your favourite machine, forgetting about the Speccy? For me, it'…
... 't cope with the raw CPU-speed that games like Super ... -
Your favourite machine apart from The SpectrumI've asked this on a couple of other sites, so now it's time to ask it here: what is your favourite machine, forgetting about the Speccy? For me, it'…
... have a three times faster CPU than the C64, all of ... -
Your favourite machine apart from The SpectrumI've asked this on a couple of other sites, so now it's time to ask it here: what is your favourite machine, forgetting about the Speccy? For me, it'…
... the raw output from the CPU to its hardware and hence ... -
Your favourite machine apart from The SpectrumI've asked this on a couple of other sites, so now it's time to ask it here: what is your favourite machine, forgetting about the Speccy? For me, it'…
... the Spectrum were better at CPU-intensive games like Super Hang ... -
PLEASE HELP MEI just got my ZX Spectrum out of its box after being in the loft for a number of years and tried to play a few games but when I turned it on and tune…
... , but it sounds like the CPU is 'blown'. That happened to ... -
PLEASE HELP MEI just got my ZX Spectrum out of its box after being in the loft for a number of years and tried to play a few games but when I turned it on and tune…
Well, it's not just the keyboard, which COULD be repairable: it's the CPU. I've had that black and white thingy before too, also for connecting a joystick interface without turning off.
Sorry about it... -
spectrum problemshello, I just recieved a spectrum 48k on ebay [img]/__forums/images/smiles/icon_smile.gif[/img] (I live in the U.S.) I have a transformer to conver…
... ?
I would think the cpu itself is ok because I ... -
Interface 1Hi, Just got myself an Interface 1 only to find it does not work. That is to say that I can't use any of the extended commands on it,e.g. CAT 1, LOA…
... , or your Spectrum's Z80 CPU
chip may be damaged ... -
Interface 1Hi, Just got myself an Interface 1 only to find it does not work. That is to say that I can't use any of the extended commands on it,e.g. CAT 1, LOA…
I think the signal M1 from CPU is not here anymore, without any interface you will not see any fault, so replace the Z80 and anything will be fine. -
Best way to codeHi, I've been using Zeus Assembler to code MC programs so far. Nothing fancy just the odd scroll left or animation stuff. Wot I'd like to know is, …
... does not take too much CPU time, but you can use ... -
speccy 128kI have a spectrum 128k that seems to work fine and load games ok. When I power it on for the first time I get the usual options screen, no problem. B…
... doesn't seem extreme. The CPU ZX80 chip gets warm but ... -
what spec pc are you running your speccy emulator onAll them giga hertz and bytes and what do i do with it mainly...play speccy games and old arcade games.. What spec pc do you have at the moment? I up…
Athlon 1G CPU
ASUS V8200 Geoforce3 Deluxe
Soundblaster Live
40G hard drive
256Mb Ram
Hauppage TV Card
40X DVD
12*4*4 CD Writer
And I still play Speccy games!!!! -
what spec pc are you running your speccy emulator onAll them giga hertz and bytes and what do i do with it mainly...play speccy games and old arcade games.. What spec pc do you have at the moment? I up…
Pentium IV 1,5GHz CPU
1Gb memory
GeForce 2 GTS DeLuxe
Soundblaster Audigy Platinum eX
100Gb disk space
40* DVD
56*16*4* CD Re-writer
19" Iiyama Vision Master Pro 451
Running Linux (Slackware + KDE2) -
SPIN Public Beta 0.1b Available for downloadHi all, back again, and as just recently announced on CSS, SPIN has been updated. Here's the post to CSS (or the relevant parts): It's been a bu…
... requires quite a bit more CPU power than I'm willing ... -
speccy v's comodore v's bbcThose old enough to remember the playground days when we each had our own little group speccy better than the comodore and the bbc users were all gee…
... there's so much memory, cpu etc. etc., they can manage ... -
32-bit handheld console GP32 / Spectrum emulatorFor your information Download Spectrum Emulator for GP32 [url="http://info2.info.tampere.fi/~teoarsa/ZardozJOnes/GPSPECCYV005.ZIP"]http://info2.info…
... perfectly inside the GP32. The cpu speed for the GP32 is ... (both are ARM based risc cpu's, so we are not ... -
RealspectrumCan anyone tell me why sometimes when I launch realspectrum it locks up on the welcome screen? I am running it in a DOS shell within windows 98. I'm …
... game and there is less cpu power, the frame rate is ... -
speccy v's comodore v's bbcThose old enough to remember the playground days when we each had our own little group speccy better than the comodore and the bbc users were all gee…
... heavy is that on the CPU? I mean, you have to ...