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Rotronics Wafadrive v.1.80 ROM - Corrupt or purposely broken?I've been digging around the Wafadrive v1.80 ROM (from [URL="http://zxspectrum.it.omegahg.com/_RO.htm"]here[/URL]) and can't decide if the ROM is cor…
... code is [URL="http://www.wearmouth.demon.co.uk/if1_2.htm ... with the IF1[/URL] (thanks Geoff), so it didn't take ... -
Machine Code Challenge #1 ResultsWell at the stroke of midnight there were 3 entries so everybody gets to stand on the podium and the 3 Spectrum books will be going out to prizewinn…
... .
[url="http://www.wearmouth.demon.co.uk/if1_2.htm ... #L1C35"]http://www.wearmouth.demon.co.uk/if1_2.htm ... /> [ This Message was edited by: geoff on 2002-07-15 21 ... -
Microdrive Mayhem!I'm wandering if anyone can help me. I recently acquired an Interface 1 plus a couple of Microdrives. But I can't get them to work properly. The Int…
... :
[url="http://www.wearmouth.demon.co.uk/"]http://www ... .wearmouth.demon.co.uk/[/url]
aka "Geoff" on ... -
Assemblers / Compilersfor the +2a .. where can i find one? .. and where can i find documents on the registers and so on? .. thanks Stefan
... here
[url="http://www.wearmouth.demon.co.uk/zeus.txt ... "]http://www.wearmouth.demon.co.uk/zeus.txt ... the 128K machine.
Cheers, Geoff. -
How to tell if I have a Spectrum ZX 16K or 48K?Hi all, I'm a total newbie to the good old Spectrum and I got three spectrums in one box together with som other old computers. The spectrums seem…
... from
[url="http://www.wearmouth.demon.co.uk/loganclone.zip ... "]http://www.wearmouth.demon.co.uk/loganclone.zip ... either way.
Cheers,
Geoff. -
Java EmulatorsOk, Im not having a good time of it here. Im trying to get a java emu on my site so people can play the games online. Ive tried Jasper Java Emu, and…
... 2004-12-04 22:02, Geoff wrote:
You need something ...
[url="http://www.wearmouth.demon.co.uk/jav/pangolin ... .htm"]http://www.wearmouth.demon.co.uk/jav/pangolin ... -
Another humorous eBay Speccy sale.[url="Http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&category=11994&item=8201395313&rd=1&ssPageName=WDVW"]Http://cgi.ebay.co.uk/ws/eBayISAPI.dll?Vie…
... .
[url="http://www.wearmouth.demon.co.uk/kb.htm ... "]http://www.wearmouth.demon.co.uk/kb.htm ... /> [ This Message was edited by: geoff on 2005-06-28 02 ... -
GraphicsI can't find this posted anywhere else, but how do you use graphics, other than circle, pixels and lines? For example, how do you draw a filled box o…
...
[url="http://www.wearmouth.demon.co.uk/BASIC/shapes ... .sna"]http://www.wearmouth.demon.co.uk/BASIC/shapes ... /> [ This Message was edited by: Geoff on 2005-07-20 15 ... -
GraphicsI can't find this posted anywhere else, but how do you use graphics, other than circle, pixels and lines? For example, how do you draw a filled box o…
... 2005-07-19 11:13, Geoff wrote:
I recently ... .
[url="http://www.wearmouth.demon.co.uk/BASIC/shapes ... .bas"]http://www.wearmouth.demon.co.uk/BASIC/shapes ... .
[url="http://www.wearmouth.demon.co.uk/gw03/basfill ... -
SoftRom emulation possible?Hello. Quick question to all emulator developers: How easy would it be to emulate a SoftRom? The mastering utilites for my protection system XLR-8 a…
... -10-29 18:47, Geoff wrote:
There are ... />
[url="http://www.wearmouth.demon.co.uk/softrom.htm ... "]http://www.wearmouth.demon.co.uk/softrom ... what you've got, Geoff, you've copied verbatim ... did you get yours from, Geoff, was it Steve Shepherd ... -
coloursJust wondering if any of you 'experts' could answer this question... When Clive invented the Speccy, and he selected the colours used... Instead of…
Wander over to Geoff's patent page ( [url="http://www.wearmouth.demon.co ... .uk/item1.htm"]http://www.wearmouth.demon.co.uk/item1.htm ... -
Dutch VNU in bid talksVNU NV is in talks to be acquired for as much as $8.8 billion by a group of the world's biggest private equity firms. The company is massive but amo…
... a few new large cheques Geoff?
I wish :)
[url="http://www.wearmouth.demon.co.uk/listing.gif ... "]http://www.wearmouth.demon.co.uk/listing.gif ... -
XLR-8 mastering utilities - help wanted!!Hello. Ironic I know given I wrote them! I can't for the life of me get the XLR-8 mastering utilities to work under emulation. It goes through the m…
... chap on these forums called Geoff who has a small site ... link:
[url]http://www.wearmouth.demon.co.uk/softrom.htm ... -
Checksum RoutinesHi there everybody, Does anyone have an 'off the shelf' assembler routine for generating checksums? Thanks Jim
... .
[url]http://www.wearmouth.demon.co.uk/BASIC/sum ... .org/[/url]
--
Geoff -
Complex DRAW command?After looking at some Speccy code I noticed that the DRAW statement is used to draw lines (or it looked that way). On the Coco, the LINE command was…
... br /> [URL]http://www.wearmouth.demon.co.uk/BASIC/shapes ... of straight line segments. Geoff's example exploits the fact ... this, I just modded Geoff's program to include an ... The final listing, if Geoff doesn't mind, is:
Geoff from me.
Q. on a book (48k/128k ROM dissassembly)Would you, great WoSsers, please recommend THE greatest, bestest and preferably completestest Speccy ROM (any 48k & 128k (not QL, zx80/81, nor clones…
[quote=Geoff;184332]It has to be " ...
[URL]http://www.wearmouth.demon.co.uk/[/URL][/quote ...Wanted: "Complete Spectrum ROM Dissassembly"I'm on the prowl for the book [URL="http://www.worldofspectrum.org/infoseekid.cgi?id=2000076"]Complete Spectrum ROM Disassembly[/URL]. PM me or repl…
... . Just download Geoff's disassembly from his [url=www.wearmouth.demon.co ... heavy going at times whilst Geoff explains things more simply and ...Microdrive wont LOAD - Help PleaseI have many Microdrive cartridges containing Original Programs and Backups. I have tried to read and load from any number of the cartridges all seem…
[quote=Geoff;213988]Hi,
Sinclair developer ... site
[URL]http://www.wearmouth.demon.co.uk/[/URL]
Fuse 0.9.0 releasedVersion 0.9.0 of [url=http://fuse-emulator.sourceforge.net/]Fuse[/url], the Free Unix Spectrum Emulator[/url] has just been released. Highlights of t…
... ROM according to Geoff's listings ([url=http://www.wearmouth.demon.co ... ]v1[/url], [url=http://www.wearmouth.demon.co.uk/if1_2.htm ...Bizarre stuff in Interface 1's shadow ROMAccording to the Complete Shadow ROM disassembly, the function that exits back to the BASIC interpreter after interpreting IF1 commands is this: [co…
... compare to Geoff's online disassembly:
[url]http://www.wearmouth.demon ...Interface 1 emulation issuesFor Virtual Spectrum v3.0 I am implementing virtual Interface 1 and Interface 2 options! The I/F2 ROM option works already, and I have got the I/F1 s…
... ="http://www.wearmouth.demon.co.uk/if1_2.htm#L1C52"]Geoff's Interface ...Channels and streamsSo I've put some thought into channels and streams, and read the dead (and presumably rotting corpse) of the CSS FAQ which contains some information …
... ROM itself.
Geoff.
[url]http://www.wearmouth.demon.co.uk ...Testing other ZX roms on DivIDE / DivIDE+This is package of different ZX rom images with DivIDE instalator. Each file contain ROM image at adress 49152 + assembler Prometheus with installati…
[QUOTE=Geoff;290652]That is SE Basic ... .rom
[url]http://www.wearmouth.demon.co.uk/gw03.htm ... here
[url]http://www.wearmouth.demon.co.uk/gw03/gw03info ... here
[url]http://www.wearmouth.demon.co.uk/gw03.rom ...Channels and streamsSo I've put some thought into channels and streams, and read the dead (and presumably rotting corpse) of the CSS FAQ which contains some information …
[QUOTE=Geoff;290607]Well reading through The ... pivotal time...[url]http://www.wearmouth.demon.co.uk/gw03.htm ... done your level of research, Geoff, even a remedial review reveals ...Testing other ZX roms on DivIDE / DivIDE+This is package of different ZX rom images with DivIDE instalator. Each file contain ROM image at adress 49152 + assembler Prometheus with installati…
[QUOTE=Geoff;290652]That is SE Basic ... .rom
[url]http://www.wearmouth.demon.co.uk/gw03.htm ... here
[url]http://www.wearmouth.demon.co.uk/gw03/gw03info ... here
[url]http://www.wearmouth.demon.co.uk/gw03.rom ...'orange' on a spectrumalways wondered why spectrums could never seem to achieve the colour orange? wasn't one of the default colours, and don't remember seeing anything th…
[QUOTE=def chris;293187]
@Geoff I couldn't get that ... .
[url]http://www.wearmouth.demon.co.uk/jav/intflags ...Help with references For WikipediaThere was recently a [URL="http://en.wikipedia.org/wiki/Talk:Sinclair_ZX_Spectrum/GA1#GA_Reassessment"]review[/URL] of the [URL="http://en.wikipedia.…
Not sure if this is useful or not - Geoff's website [URL="http://www.wearmouth.demon.co.uk/item1.htm"]here[/URL] contains a link/reference for the original 'attribute clash' circuit patent, filed by Sinclair and listing Richard Altwasser as the originator.Help with references For WikipediaThere was recently a [URL="http://en.wikipedia.org/wiki/Talk:Sinclair_ZX_Spectrum/GA1#GA_Reassessment"]review[/URL] of the [URL="http://en.wikipedia.…
... or not - Geoff's website [URL="http://www.wearmouth.demon.co.uk ...[Discussion] Planned corrections to: The Complete Spectrum ROM DisassemblyOk, folks. Since I'm not obtaining replies from those involved in the previous effort to transcribe The Complete Spectrum ROM Disassembly, I'm going …
... ;324980]Thank you so much, Geoff! I have been looking for ... .g.
[url]http://www.wearmouth.demon.co.uk/p74.gif ... .g.
[url]http://www.wearmouth.demon.co.uk/p109.gif ...2 commands in 1 lineHi all, this is my first post although I have visited the web site many times, and I find it great. English is not my mother tongue, so I will try to…
[QUOTE=Geoff;341148]You can try it ...
[url]http://www.wearmouth.demon.co.uk/zz/zz ...
