-
Z80 QuestionCan the instruction EX DE,HL be prefixed with DD to give EX DE,IX? Derek
... z80 went from NMOS to CMOS in the late '70s. A ... CMOS design requires a completely new ... just translated the logic to CMOS, thus keeping all the quirks ... -
OT: PC boot solution anyone?A long shot I know, but what the hell! The thing is this: My Asus K8V SE Deluxe mobo seems to be suffering from a problem. Specifically with the BIO…
... ASUS:
1) Remove CMOS battery
2) move jumper ... -
OT: PC boot solution anyone?A long shot I know, but what the hell! The thing is this: My Asus K8V SE Deluxe mobo seems to be suffering from a problem. Specifically with the BIO…
... error could be because the CMOS battery failed and all the ... CMOS settings got screwed up, so ... />
I'd change the CMOS battery just in case, as ... -
OT: PC boot solution anyone?A long shot I know, but what the hell! The thing is this: My Asus K8V SE Deluxe mobo seems to be suffering from a problem. Specifically with the BIO…
... open the case to clear CMOS data. Simply restart the system ... -
OT: PC boot solution anyone?A long shot I know, but what the hell! The thing is this: My Asus K8V SE Deluxe mobo seems to be suffering from a problem. Specifically with the BIO…
... hopeless!
cass> CMOS battery again eh? Well I ... -
rom switchhow could one go about building a rom switch, to switch between +3 roms and +3e roms.
[url="http://www.zxplus3e.plus.com/p3eroms.html#sendeprs"]http://www.zxplus3e.plus.com/p3eroms.html#sendeprs[/url]
Just checked, they ARE 27C256 Eproms - the "C" suffix is simply a low power CMOS version of the 27256. -
MEMPTR finally crackedThis post is mainly for emulator developers. As you may be well know there is a misterious internal register in Z80 CPU (MEMPTR) which value is set …
... was reimplemented (from NMOS->CMOS, across different sources, z80 compatibility ... -
voice sampling with ADCs and DACsHi sorry it's off topic, but I wonder if anyone can help with an electronics problem. I'm trying to build a project for A-level electronics, using an…
... you're not using? Most CMOS ICs don't like inputs ... anything with TTL rather than CMOS) - if you're driving it ... is at logic 1, the CMOS part gets +5v rather than ... -
PC ProbsJust been given a PC to fix. Everything is now fine except the damn thing won't re-boot. It'll start up on a cold boot no probs, but it will not, e…
... RAM problem - unless it's CMOS RAM, but the bios settings ... -
Nooooo my speccy died!??!!Hi! I am quite sad. :( Tonight I got a kempston interface so I rushed home to try it on my spectrum+ The edge connector of the interface was narrower…
... ), and also I have a CMOS Z80 on the way from ... power requirements. I'm using CMOS for everything else). I bet ... -
Component Equivalents/substitutionsA while ago, I mentioned to somebody in a thread that we should have a list of component equivalents and substitutions so that it's easier to fix our…
... for mixing with TTL and CMOS 74 families.
The ... -
in quest for a z80 :DI am trying to find a Z80A in some retail shops here in Greece. I have only located the following CPUs branded as either Z80 without anything else o…
... package Z80)
4MHz (non-CMOS) would have the code: Z0840004PSC ...
4MHz (newer CMOS) would have the code Z84C0004PSC ... -
in quest for a z80 :DI am trying to find a Z80A in some retail shops here in Greece. I have only located the following CPUs branded as either Z80 without anything else o…
... ) Z80L CPU Central Processing Unit (CMOS, marked new for '82)
CMOS Z80 will work on a ... -
in quest for a z80 :DI am trying to find a Z80A in some retail shops here in Greece. I have only located the following CPUs branded as either Z80 without anything else o…
... also have a true Zilog CMOS Z80.
All the ... -
in quest for a z80 :DI am trying to find a Z80A in some retail shops here in Greece. I have only located the following CPUs branded as either Z80 without anything else o…
[QUOTE=Pyjamarama]Hi
I managed to find a Z80 but I do not know if it is the right one
Z84C0008PEC
Z80 CPU
0124 74
I hope it is the one (...anxious...)[/QUOTE]
Z84C 0008 PEC -
in quest for a z80 :DI am trying to find a Z80A in some retail shops here in Greece. I have only located the following CPUs branded as either Z80 without anything else o…
... and 10MHz flavours of the CMOS Z80...
Quick check ... -
Component Equivalents/substitutionsA while ago, I mentioned to somebody in a thread that we should have a list of component equivalents and substitutions so that it's easier to fix our…
On the Z80, someone (perhaps here?) pointed me to a Farnell page - you can still buy brand new bog standard 40 pin DIP packaged Z80s (albeit the CMOS rather than NMOS version). It's even ROHS compliant. -
Component Equivalents/substitutionsA while ago, I mentioned to somebody in a thread that we should have a list of component equivalents and substitutions so that it's easier to fix our…
That's very interesting - I'm very sure the CMOS version works fine in a Speccy. Nice work! -
i'm not a peado, but.....how come when i do some work on my PC, it gets deleted, the IT helpdesk are no help what-so-ever in finding it.
... to do is wipe the CMOS. The admin password for getting ... -
Opus Discovery and +2A?Can anyone tell me if the Opus Discovery is compatible with the +2A. I've just bought a +2A off Ebay and couldn't find any info on compatability. If…
... 've been abusing the same CMOS Z80 for about 3 months ... -
Opus Discovery and +2A?Can anyone tell me if the Opus Discovery is compatible with the +2A. I've just bought a +2A off Ebay and couldn't find any info on compatability. If…
... 5V power line on that CMOS Z80 - we'll soon see ... -
Audio level on a grey +2Hi all, I received yesterday my "new" Spectrum 128+2 grey. It's a french one (without modulator, and with specific roms : message in french). First …
... other overtones these days, too. CMOS parts are made up of ... outputs often won't drive CMOS properly. Generally, when you hear ... with the vast majority of CMOS and you get "undefined behaviour ... -
Zx Spectrum Laptop (again)I've been reading all the old treads about a possible portable speccy. I even found the one about the Speccy Laptop. But it seems there's a lot of ne…
... than the original) - use only CMOS parts and a small FPGA ... -
Zx Spectrum Laptop (again)I've been reading all the old treads about a possible portable speccy. I even found the one about the Speccy Laptop. But it seems there's a lot of ne…
... with a couple of speedy CMOS static chips, but then some ... ?
There are also CMOS Z80 variants, as well, which ... -
Zx Spectrum Laptop (again)I've been reading all the old treads about a possible portable speccy. I even found the one about the Speccy Laptop. But it seems there's a lot of ne…
... br /> Z80 - use a new CMOS version (same package, same pinout ... NMOS and TTL chips for CMOS)
Memory ... ROM with a modern CMOS Flash device, and replace ... RAM with a single CMOS static RAM.
CMOS parts, doesn't even ... -
Zx Spectrum Laptop (again)I've been reading all the old treads about a possible portable speccy. I even found the one about the Speccy Laptop. But it seems there's a lot of ne…
... TTL. My board is all CMOS which uses a fraction of ...
