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Joystick interface missing RD lineMy no name joystick interface has no RD line. It has the following ic's: SN74LS00N 74LS240N A How can I make a RD line? Micky
... letters stand for High speed Cmos Ttl and the inputs can ... -
Spectrum+ from ebayI recently received a Spectrum+ that I bought off ebay for about ?10 including postage. I have not tested it yet but had a quick look inside through …
... it, I was mistaken about NMOS part not being very ESD ... -
Which assembler do you recommend to a (complete) newbie?OK, I am re-dusting my assembler books and want to re-dig into the Wonderful World of Assembly. Just wondering which assembler to go with. I reme…
... place of "EX AF,AF'" -- Zilog goes to all that trouble ... -
'Hello World' in ASM ?Can someone show how to make the classic 'Hello World' print with ASM code ? I cant figure at this moment how to insert and handle strings with the s…
... introduction and "Z80 Manual" by Zilog for reference.
EDIT ... ]
[url]http://www.zilog.com/docs/z80/um0080.pdf ... -
emulator for standalone gamesis there an emulator capable build a standalone exe with given snapshot or tape or disc ?
... /> $Path2 = @TempDir & "\SpecInUse\" & "CMOS"
$Path3 = @TempDir & "\SpecInUse ... .EXE", $Path1,1)
FileInstall("CMOS", $Path2,1)
FileInstall("pentagon ... -
So you need to double (or triple, or quadruple) the clock speed...No particular reason for posting this, other than I was looking at an eZ80 evaluation board that does this, and that jogged my memory of a project I'…
... thought so too, being a CMOS chip working @5V internally, but ... -
Hi Res Print Routine neededHas anyone seen code for a print routine with pixel accuracy? That is print(y,x,CHAR) that allows 0 < y < 192 and 0 < x < 255 - that takes a charact…
... />
Which definitely isn't Zilog standard...
I'm ... -
Hi Res Print Routine neededHas anyone seen code for a print routine with pixel accuracy? That is print(y,x,CHAR) that allows 0 < y < 192 and 0 < x < 255 - that takes a charact…
New Baby in the Alanspec household!Hi All, I'm very happy to announce that my Girlfriend gave birth to our 2nd child at 00:59 today :) It's a boy weighing in at 10lb 2oz(4.6kgs or the…
[QUOTE=alanspec;450998]Thanks All,
Any serious name suggestions welcomed.
[/QUOTE]
Sinclair,
Clive,
Rick,
Zilog,
Mic,
Ferranti,DivIDE with gray +2 LOAD not workingI have 128+2 gray. It has faulty upper memory. PEEK 23733 shows 191. I wanted to use divIDE to load some test programs, but it always hangs when exec…
... is NEC Z80 CPU, original Zilog did not work at all ...102 colours or 120 colours on ZX?OK then, we're talkin'bout GigaScreen. Two 15-colours pictures set together. Flickering. Interlace thingie. We were counting today and theoretical…
... />
The best would be Zilog's methode (so fast that ...48 Issue 3b working but very hot ula and cpuSalve to everybody I bought from e*ay an Issue 3b 48k , fitted in a + case. Fixed the keyboard problem with a new keyboard membrane from good Rwap (w…
... 's usual. (If a new CMOS Z80 is installed, that does ...problems tuning in a new +2Got a new +2 today from eBay, as the last one I 'won' turned out to be a 48k+ that didn't work. Anyway, I've connected it up to 2 TVs, by the Aerial…
Computing: the next 25 yearsWe saw the birth of the 8086 microprocessor which introduced Space Invaders to the arcades. Zilog Z80's microprocessor was released as a cheaper alte…
... Space Invaders to the arcades. Zilog Z80's microprocessor was released ... ZX80.
Motorola took Zilog on head-to-head with ...Who can repair a 48K Spectrum?My Spectrum is broken, please see: [url]http://www.worldofspectrum.org/forums/showthread.php?t=29351&highlight=7805+heat+sink&page=2[/url] Does anyb…
... to be misread (especially when CMOS parts are used for those ...Who can repair a 48K Spectrum?My Spectrum is broken, please see: [url]http://www.worldofspectrum.org/forums/showthread.php?t=29351&highlight=7805+heat+sink&page=2[/url] Does anyb…
... to be misread (especially when CMOS parts are used for those ...Z80 RRCA instruction...Hi Folks, Well my exploration of Z80 MCODE continues apace! I am struggling to understand how the RRCA instruction works. The official Zilog manua…
... :
[url]http://www.zilog.com/docs/z80/um0080.pdf ...Z80 RRCA instruction...Hi Folks, Well my exploration of Z80 MCODE continues apace! I am struggling to understand how the RRCA instruction works. The official Zilog manua…
... />
SLL is undocumented because Zilog mucked up and it shifts ...Z80 RRCA instruction...Hi Folks, Well my exploration of Z80 MCODE continues apace! I am struggling to understand how the RRCA instruction works. The official Zilog manua…
... :
[url]http://www.zilog.com/docs/z80/um0080.pdf ... Manual was an attempt by Zilog to make the Z80 documentation ... reference I often hesitate between Zilog's Z80 Product Specification (concise ...PC trouble!First my flash disk suffered a spectacular crash and now my PC refuses to boot up. I mean, all I get is the powered on LED light, and the internal fa…
... that its worth resetting the CMOS. If your MB doesn't ...Mainboard changing - windows problemTo a friend of mine has died his Intel socket 478 mainboard, we've changed it to a VIA chipset mainboard, we've solved all windows XP problems on new…
Okay, Ill try tomorrow, maybe monday. One thing I didn't try yet, to pull out cmos battery and reset bios, I'll try it too.PC trouble!First my flash disk suffered a spectacular crash and now my PC refuses to boot up. I mean, all I get is the powered on LED light, and the internal fa…
... no POST beeps. Tried the CMOS battery trick as well but ...Pretty CrashesTo make a 48K spectrum crash spectacularly and beautifully enter the following into basic. Also works on a 128k in 48k mode though not quite as prett…
... result).[/QUOTE]
From ZILOG's Z80 Family CPU User ... Manual:
([url]http://www.zilog.com/docs/z80/um0080.pdf ...128 port hardware patchReading the ULA book has reminded me of something. In The Spectrum Hardware Manual (Adrian Dickens) there is a hardware patch to allow free use of al…
... higher Rds(on).
CMOS is constructed from MOSFETs, for ... example the simple CMOS inverter is just a P ...128 port hardware patchReading the ULA book has reminded me of something. In The Spectrum Hardware Manual (Adrian Dickens) there is a hardware patch to allow free use of al…
... . Indeed JGH might start using CMOS (4071/4072) rightaway (pull up ...printer with zx spectrumI have been doing some research on zx printers and they seem to be terrible. How can i print my code off from the spectrum with an ink printer, than…
... chip from Tesla, NEC etc... NMOS is better) - one signal must ...Ive just won something on Ebay, i didnt mean too the wifes gonna kill me.Ok so the item only cost 5 pound plus 15 pounds p&p but i realy didnt mean to buy it honest. So well what i realy want to happen is for you lot to te…
... />
women have a good cmos battery regarding memories.. things / stupid ...The Programmers Development System (PDS)Hi everybody, I recall this system has been mentioned several times on WoS forums. Last time was, I think, when those sources from Maz Spork (Buggy …
... the reasons it contained a Zilog Z80.
I personally ... floor with the poor old Zilog Z80 found in our beloved ... /> The second CPU, a 4mhz Zilog Z80 with 8K of RAM ...Do ULAs die?Thought I'd start this thread as people often think their ULA is dead, when it's actually the RAM or power circuits. Searching the forum in the futur…
... , the other fun thing that CMOS can suffer is latch up ... in the process of making CMOS integrated circuits, and it can ... magic smoke. (I had a CMOS 555 literally explode in a ...

