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Z80 CPUs goin cheap.This guy is selling them very cheaply and has a couple multi item auctions for them. Thought I would post here in case people were looking for one/so…
... ]http://cgi.ebay.co.uk/Z80-CPU-BRAND-NEW-FOR-SINCLAIR ... -
ZX80 with new ROM?There's an interesting ZX80 on sale from eBay US, with some included software. The ZX80 has the original keyboard, however the ROM appears to be the…
... the original keyboard, however the ROM appears to be the ZX81 ... ROM - this picture of the screen ... the keyboard when updating the ROM...? Anyone got any ideas?
Blok*Load on Multiface 128Spinning this off into a new thread to avoid cluttering up the original: [url]http://www.worldofspectrum.org/forums/showthread.php?t=17999&page=7[/u…
... version of the Multiface 128 (ROM version 3.5, identified as ... version of the Multiface 128 (ROM version 3.6, identified as ... rustled up is in tape format here:
[url]http ...What was a Z80 computer capable of ?I have always wondered, and maybe the techy people on here could answer, with what you know about the Z80 processor, was the spectrum hampered by the…
... what you know about the Z80 processor, was the spectrum hampered ... so, what graphics could a Z80 be capable of ? it always ...Rom dumping a Mirage MicrodriverI need to dump the rom of my Mirage Microdriver for Zub and don't know what to do...any help?
I need to dump the rom of my Mirage Microdriver for Zub and don't know what to do...any help?How does the Z80 communicate with hardware?How does the Spectrum (or Z80) interact with other hardware devices? I think devices can communicate with the CPU through interrupts, but how can the…
How does the Spectrum (or Z80) interact with other hardware devices? ...Print Int -65536Just came across an interesting bug in the ZX Spectrum Floating Point format from the Complete ROM Disassembly book. [code] PRINT INT -65536 [/code]…
... ZX Spectrum Floating Point format from the Complete ROM Disassembly book.
So who needs a 3.5 GHz dual core Core 2 Duo......when a 6MHz Z80 will do for a multi-user server? After hacking about more with the socket library - I had 4 simultaneous users on ALIAC-2 via eth…
...when a 6MHz Z80 will do for a multi- ... compiled and run on a Z80 machine (with just a couple ... assemble the ALIAC-2's ROM, rather than the usual sys ... that needs to live in ROM.
The next step ...Faulty +2 Grey :(Hello everyone... i was trying to fix a +2 grey board the other day, i had it for some time now. It gave a black screen (paper and border) with two …
... , since i tried known working rom, z80 and ULA on it and ...Which ROM for 128 ToastrackHi I have a Spectrum 128 Toastrack which has a missing ROM chip. I have an Eprom blower and a few 27256-25 Chips. I have looked on the Spectrum ROM …
Hi
I have a Spectrum 128 Toastrack which has a missing ROM chip. I have an Eprom blower and a few 27256-25 Chips. I have looked on the Spectrum ROM website but cannot decide which is the right one.It's a trap!So I got a CPLD (not the eventual one I want to use for the ethernet project - rather, one I actually have here and now, an XC9536 in a PLCC44). And…
... />
Additionally, whenever our ROM is paged in, A15OUT is ... means I trap before the Z80 actually fetches the instruction, ... beginning (in the Spectrum ROM, 0x007C contains a RET ... time with "The Complete Spectrum ROM disassembly" especially with regards ...splib2 from ROMI'm trying to generate IF2 ROM games for ZX Spectrum 16K using z88dk + splib2. So far I've managed to create a new crt0 file and to generate valid RO…
... 'm trying to generate IF2 ROM games for ZX Spectrum 16K ... (i.e. graphics, masks...) in ROM or is it written to ...ROM for Issue 6 neededAnyone got a ROM for Issue 6 for sale ?
Anyone got a ROM for Issue 6 for sale ?Z80 ParserAs you can see from my signature I'm doing a new Z80 assembler partly as a coding exercise and partly as there's some extra features I need. I'm hal…
... I'm doing a new Z80 assembler partly as a coding ...Snow Joke z80 doesn't work?The z80 file for Snow Joke keeps giving an error message when you try to take the first object in the game: [url]http://www.worldofspectrum.org/info…
The z80 file for Snow Joke keeps giving an error message when you try to take the first object in the game:
[url]http://www.worldofspectrum.org/infoseekid.cgi?id=0006990[/url]
The tzx file works fine though.Format(how many were there)?Hi Guys, Did anyone subscribe to Format as I have now got the lot up until vol 12 issue 2 (another ebay win), guess this may have been the l…
... ,
Did anyone subscribe to Format as I have now got ... Bob Brenchley but the old format email is long since dead ...Some more questions on various subjectsSome more questions that occur to me (mainly when I can't sleep). 1. Do DVD discs have PAL/NTSC formats? If so, how come I could play DVD regio…
... been designed to use that format instead of a disc?
custom chips and it's abundance ...Lerm Z80 ToolkitJust a note that the version on WoS is version 2 of the Z80 Toolkit. I have version 1, but the tape snapped while TZXing. It might be worth noting i…
Just a note that the version on WoS is version 2 of the Z80 Toolkit. I have version 1, but the tape snapped while TZXing.
It might be worth noting in case another copy turns up.Z80 from a ZX81 in a Spectrum?Can I put a Z80 from a ZX81 into a Spectrum 48K? It should work even if they both are clocked differently (3.25MHz vs. 3.5MHz AFAIK), right? Thanks,…
Can I put a Z80 from a ZX81 into a Spectrum 48K? It should work even if they both are clocked differently (3.25MHz vs. 3.5MHz AFAIK), right?
Thanks,
ThomasSource of Z80 ProcessorsHi all, After seeing the somewhat inflated prices that +2A's and +3's seem to be going for on eBay I'm wondering if trying to fix my 48k+ is a bette…
DivIDE+ and 128K HeatsinkI got my DivIDE+ yesterday and i tried it on a 48K+ at first, it worked marvelously on it, no problems at all. Today i desided to try it on my 128 H…
... 128 and unsoldered the Z80, installing a base in ... its place. I tried another Z80 (Zilog brand), nothing.... and ... the rom, i tried a spare NEC D708C-1 Z80 that ... br />
Every other Z80 i tried previously (and the ... working with one good Z80 out of other good ...If you've got a real working MF128,IF1, and MDR combo can I ask a favour?So, if you do have a real Multiface 128, Interface 1, Microdrive and, oh yeah, a Spectrum (48k or 128k) that are all working, can I ask a favour...? …
... Routine[/URL] really does "format microdrive cartridges more effectively, ideally ... ;
; Nasty Interface 1 Rom Check
; mailto: jp@drumfu ... equ $5ced ; jump to shadow rom address
;
exx ... rst $08 ; page in shadow rom
defb $32 ; and ...MDOS3 and DEMFIR for DIVIDE+ QuestionHi everybody, I just got a DivIDE+ interface. I correctly use RESIDOS and Fatware, but I was not able to use DEMFIR and MDOS3 OSes. Is there some go…
... I've connected a CD-ROM unit as master and I ... put a CD-ROM with some Spectrum image ... on it, into a folder "Z80" in another folder "Spectrum". Other ... DEMFIR OS finds the CD-ROM unit correctly and displays ... the burned CD-ROM disc label too. But ...Dangerous Z80 Assembly CommandHave been reading Toni Bakers' "Mastering MC On Ya Speccy" book and came across the list of Z80 commands in the dictionary section. Page 102 "[b]IM…
... came across the list of Z80 commands in the dictionary section ...Zip disk long format problemHere's a puzzler. I've checked out the Iomega help & FAQs and Iomega user forum and Usenet and haven't as yet fully resolved this problem - so now I'…
... Zip disks will short format OK and copy files to ... except ...
* Long format runs (disk chugs away for ... disk access stops the format window doesn't give ... /> * Now, long format runs and progress bar slowly ... but when finished the format window still doesn't ...+3 Original 4.0 RomsHi, I've replaced the original +3 4.0 Roms with the +3e, programmed on two 27c256 eproms. Everything works ok. Anyway I want to backup my original 4…
... +3 4.0 original Rom files (pl3-x.rom, x>=0 ...Z80/beeper music siteFor those who don't follow raww.org (and why not? :-) ) you may wish to know about a new website from Yerzmyey, devoted to the music of the humble be…
For those who don't follow raww.org (and why not? :-) ) you may wish to know about a new website from Yerzmyey, devoted to the music of the humble beeper and Z80 chip, past and present...
[url]http://z80.e-demo.pl/[/url]A BASIC compiler projectHi, I started my own BASIC compiler for the ZX Spectrum (and Z80 machines) 3 months ago. It's still in ALPHA stage (when it is mature, I will write …
... for the ZX Spectrum (and Z80 machines) 3 months ago. It ... other target architectures (not only Z80 ones). I'm currently starting ... :-() E.g. for calling the ROM FP-CALC etc, as I ...
