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RGCD - Free CD Diskmag[img]http://i40.photobucket.com/albums/e226/darthgord/rgcdcover.gif[/img] For those not in the know, the mag not only reviews the best new releases …
... -Bit, Commodore 64, GBA, PC/Mac, Sega Master System and [B ... -
Psion Revo - Spectrum EmulationHello all. I've just bought a Psion Revo (8mb) for 20 quid and was hoping to use it for emulating the Spectrum. A few years back I had a Psion 3a bu…
... =revo[/url]
that 'z80' runs on the Revo. Does ... -
New Spectrum HardwareHi all. Well its Friday so it seems as good a time as any (business is a bit slack at the moment) to start up a thread about creating new Spectrum ha…
...
RF TV output
Z80 processor
256k RAM (at ... that will run on a Z80?
5. The main ... -
Disable onboard memoryWould this work...? Access to onboard I/O can be disabled by holding IORQGE high. Would it be possible to create a MEMRQGE in a similar way to disa…
... ,
insert resisitor
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Z80 MEMRQ +----+--/\/\/\/---+------>ULA, top 32K ... -
+2B ram chips?Hi all, I have got 2 Plus2B`s and 1 Plus2 gray case. Ok the one Plus2B don`t work, so I tried to see if I could pin down the problem. I changed the …
... problem.
I changed the Z80 from the Plus2B to the ... I know its not the Z80.
There are 4 ... I know its not the Z80, and the one ram chip ... least I have a working Z80 inside it.
The Plus2B ... -
8-bit or 16-bit registers?I'm playing around with writing a Speccy emulator for mobile Java at the moment. I did a quick and dirty port of Qaop, which does run but at less tha…
... that I can get the Z80 emulation at full speed on ... 'm about to start the Z80 core for real.
Notation questionI wasn't quite sure where to put this post, so anyone's welcome to move it whereever may be more appropriate. So I'm reading about Z80 interrupts he…
... /> So I'm reading about Z80 interrupts here:
[url]http ...Live Free, or Die Hard 4.0 or whatever.Just saw it ... ok action flick ... that kid from the Mac commercials was tolerable ... Kevin Smith is getting a bit fluffier around the edges. Minu…
... flick ... that kid from the Mac commercials was tolerable ... Kevin Smith ...Yours for cost of S/H or eBay.I found some old programming (MAC(bleugh!) mags of mine. All in very good condition. They are yours if you paypal S/H from USA ... otherwise I'll tr…
I found some old programming (MAC(bleugh!) mags of mine. All ...ZX Spectrum 128+ problemsHello!I recently purchased and got myself a spectrum 128+ from ebay.The item did not have an original power supply so i got a power supply of 9volts …
... -Made-of-ULA-Chip-for-Z80-CPU-ZX-Spectrum_W0QQitemZ120137893224QQihZ002QQcategoryZ4193QQrdZ1QQssPageNameZWD1VQQcmdZViewItem[/url]
Compressors are available for Speccys ?Hi folks, although I was an wasn't strictly a speccy coder in the glory days (amstrad & amiga for the most part), I have secides to arse about with …
... compressor many years ago for z80 machines).
I currently ...z88dk and MacOSXThis is a real noob question, and I apologise if it has been asked before. I am looking to develop some software for the Spectrum, using the z88dk a…
... install the z88dk on my Mac. Could someone describe the steps ...Any of you listen to TWiT technology Podcasts?This is a series of free Podcasts from America but actually done by Americans who understand irony run by a guy called Leo Laporte. The main podcast…
... you don't own a Mac. Also the 'Windows Weekly' one ...+2B problem stillHi all, I have a spare +2B that still dont work. Richard kindly sent me 4 x 4464 ram chips but the +2B still dont work I have swapped over both ROM`s…
... both ROM`s and the Z80 for known working chips ans ... is very warm and the Z80 is very warm and getting ... both ROM`s and the Z80.
I thought that the ...Old TS2068 tape foundI made a .z80 snapshot of the programs I found in both sides. If you load the first program and read the commentary, you'll understand how this gentl…
I made a .z80 snapshot of the programs I ... .zidev.com/ts2068/other/JRC_side_1.z80[/url]
[url]http://zxspectrum ... .zidev.com/ts2068/other/JRC_side_2.z80[/url]
It's ...Splitting Images tzx maybe not perfectI've been hacking this game and its loader. Also the save routine is intact in this game. It saves a block with a pilot length of 801 pulses. Test…
... .homecall.co.uk/spec/splittingimagessave.z80]Splitting Images Saver[/url]
Shadow on glassI don't think this game can be finished. I've used the GACPAC extractor tool so that I can examine the game in GAC [url]http://homepage.ntlworld.com…
... .ntlworld.com/madmekon/specpic/SHADGLAS.Z80[/url]
and made ...Question on Z80 R/W cycles.Snipped from the complete spectrum ROM disassembly: [CODE] Now the memory is checked. 11DA RAM-CHECK LD H,D Transfer the value…
Snipped from the complete spectrum ROM disassembly:
[CODE]
Now the memory is checked.
11DA RAM-CHECK LD H,D Transfer the value in DE
LD L,E (START = +FFFF, NEW =
Net guru help neededHELP! Okay, I'm out of sorts when it comes to the internet these days.... this whole 'MAC' code is new to me and seems really confusing compared to …
... internet these days.... this whole 'MAC' code is new to me ... do this they want a MAC code.
BUT I ...How to make TAP files of multi-load 48k games?I have a website, [URL="http://www.zxspectrum.net"]ZXSpectrum.net[/URL], with the ZX Spectrum 48K emulator Qaop, that accepts TAP, Z80 and SNA game f…
Mnemonics UppercaseMy question is more PC oriented than Spectrum, but maybe somebody knows a simple solution. I have some Spectrum machine code in .asm files. I wrote …
... to load a list of z80 instructions and perform replacing only ...Contention and floating bus timingHello, I was recently playing a bit with memory contention and floating bus stuff in ZXDS and there is one thing which puzzles me a bit. It is the d…
... for 32 cycles and the Z80 can generate interrupt for the ...Sam Revival issue 19 out now! [Sam CoupIssue 19 of Sam Revival is now out! Let's start off with what's on the coverdisk: Conquest. Written by Peter King in 1997 this originally had a lim…
... this issue is "Programming the Z80", a new machine code column ... introduction to the Sam's Z80 CPU, hexidecimal numbering, memory and ... a gentle plunge into learning Z80 assembly and you'll soon ...Pipex threatening to cancel my Internet due to bad debt[QUOTE]Account number: 502xxx Dear Sir/Madam, Despite our previous communication with you an outstanding balance remains unpaid along with no new D…
Wipe Out by KB RamWhilst doing a long-overdue update for Speccy Spoilers, I noticed that one of the latest additions is a game which doesn't appear to be in the archiv…
... ://www.rzxarchive.co.uk/wipeout.z80[/url]Need help identifying this musicI made a small basic program with all the notes that I can remember, but it may be incomplete. I'm not sure if this was from a game or not. Please li…
... .zidev.com/zx/temp/UnknownMelody.z80[/url]
Thanks ...Damn, I think I need a reflow ovenOr a reflow frying pan at least... I was just assembling an order through Farnell since I've worn out another soldering iron tip (which has actually…
... than the CP2200 for the Z80 to read, without a microcontroller ...A Legacy for AlaricThis one's a bit confusing. Side 2 of [url=ftp://ftp.worldofspectrum.org/pub/sinclair/games/r/RetardedCreaturesAndCaverns.tzx.zip]Retarded Creatures…
... /pub/sinclair/games/l/LegacyForAlaricAPart1.z80.zip]Part 1[/url] and ... /pub/sinclair/games/l/LegacyForAlaricAPart2.z80.zip]Part 2[/url] are ...Trying to create NMI, whats this switch?Hi, I have been reading a book Z80 Applications, and I am trying to create a simple device for creating a NMI. Here is a schematic: [url]http://www…
... have been reading a book Z80 Applications, and I am trying ...
