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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 ... -
What is the most original game youve played on speccy??Hi, ppl I know its hard to answer this kind of questions coz you must to leave a lot of other games but.. What is the most original game youve play…
... era. I'd also put Driller on this list, a highly ... -
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'…
... 's true in games like Driller that the Speccy has an ... -
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 ... -
Can anyone recommend some games?I haven't owned a Spectrum since about 1986. Can anybody recommend some original games, (not arcade conversions) that I missed out on?
Zolyx, Kemshu, Kentilla, Driller, Tau Ceti, Chuckie Egg, Impossible ... -
DrillerOne game which I never see mentioned here is Driller. It got 97% in Crash (bless them), but it in my opinion it doesn't hold up. In saying that, it i…
Driller didn't really start first- ... Battlezone clone) was already one. Driller deserved its credits because it ... settings!
Never liked Driller though, Dark Side was a ... -
DrillerOne game which I never see mentioned here is Driller. It got 97% in Crash (bless them), but it in my opinion it doesn't hold up. In saying that, it i…
Driller was a very original and innovative game although being a touch slow, and it is one of my personal favourites even nowadays. Maybe The Dark Side was better, but it came out about 7 months later, so some progress was to be expected, wasn't it? -
DrillerOne game which I never see mentioned here is Driller. It got 97% in Crash (bless them), but it in my opinion it doesn't hold up. In saying that, it i…
i never played driller but i did get 3d construction kit and that was way to slow,,took me hours to build an house in blue,lol.wasnt driller written using 3d construction kit or was that a spin off of the program used for driller? -
DrillerOne game which I never see mentioned here is Driller. It got 97% in Crash (bless them), but it in my opinion it doesn't hold up. In saying that, it i…
I think 3d construction kit was a spin off from driller.
I bought it too, but never did much with it. -
DrillerOne game which I never see mentioned here is Driller. It got 97% in Crash (bless them), but it in my opinion it doesn't hold up. In saying that, it i…
I think 3d construction kit was a spin off from driller.
I bought it too, but never did much with it.
I also got given a copy of 3D Game Maker - which i thought would allow me to make fairlight clones, but that was appaliing. -
DrillerOne game which I never see mentioned here is Driller. It got 97% in Crash (bless them), but it in my opinion it doesn't hold up. In saying that, it i…
Loved the way in Driller you had to plod about on ground for ages before you reached the sector with the hangers - and then you could change vehicles and fly - very liberating! I thought Driller was the best of the Freescape games. -
DrillerOne game which I never see mentioned here is Driller. It got 97% in Crash (bless them), but it in my opinion it doesn't hold up. In saying that, it i…
u liked Driller?! u must be batty! [img]/__forums/images/smiles/icon_wink.gif[/img] -
DrillerOne game which I never see mentioned here is Driller. It got 97% in Crash (bless them), but it in my opinion it doesn't hold up. In saying that, it i…
I got Driller when it was released - it was revolutionary then. I thought the lonely atmosphere came across really well - and it's not too slow if you use fairly high angle/step values when wandering around and adjust them down when doing something tricky. -
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 ...
