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Simple explanation of interrupts (in the context of Z80/Speccy)I wondered if somebody on here could explain in simple terms how interrupts work on the Speccy and where interrupts are source from. Are they a natur…
... acknoledged interrupt causes the Z80 to do a CALL ... by the user. Any Z80 book can explain this with ... available when an external device (Multiface, DivIDE, etc) offers it. ... , an NMI causes the Z80 to call a routine at ... offer a NMI access page in their own ROM ... -
Odd versions of the Multiface One.I've been looking through the adverts for the Multiface One and it's clear that there were a number of versions available. Note the earliest advert …
... ]I've made a little page covering all the known information ... ://www.indigobanquet.adsl24.co.uk/multiface/multiface.htm]Multiface ROM Collection Project[/url ... .htm"]documented[/URL] a working Z80 CRC-32 routine -
Odd versions of the Multiface One.I've been looking through the adverts for the Multiface One and it's clear that there were a number of versions available. Note the earliest advert …
... /> Maybe you can expand the Multiface page to include Rom disassembly and ... we could scale up the page.
But, I'd ... .htm"]documented[/URL] a working Z80 CRC-32 routine[/QUOTE]
ESXDOS v0.8.0 released (with NMI Browser)Hello, To celebrate the speccy's 30th birthday, here's the latest version of ESXDOS for DivIDE users. The full changelog is too long to post here, s…
... for all snapshots
;Z80 snapshot - ram pages is loaded ... ram 5 load to adress 16384 and ram 2 to adress ... 5 load to adress 16384 and ram 2 to adress ... run Z80 128kB snapshots on ZX48 (set surrent ram page from ... load 128kB SNA/Z80 with current ram page 5 or 2 ...Tutorial - learn machine code in 30mins[B][I]Message from the moderators[/I] - bigjon has requested that readers' attention be drawn to a better version of this tutorial, one which is easi…
... ZX Spin. Select Tools -> Z80 Assembler.
To run our ... -hand side of the assembler page to make your code more ... the Display file, from addresses 16384 to 22527, which stores a ...Coding for 128kHi all, I wonder if anyone can suggest any useful reading/threads/examples on the fundamentals of 128k coding. Chapter 24 of the +2 manual has prov…
... actually care. The RAM page holding the current screen does ... be addressable by the Z80 for the display to ... first screen is always at 16384, no matter what. Even ... alternate screen you have to page it in at 49152. ... Although you can also page in the first screen ...SPECTRA New from Paul FarrowLooks good! Read about it [URL="http://www.fruitcake.plus.com/Sinclair/Spectrum/Spectra/SpectraInterface.htm"]here[/URL]
... have a second video ram page like the 128[/QUOTE]< ... the normal address range (start=16384 [8000h], length=6144 [1800h]). ... ]could either of the z80's in these interfaces ... as well as the main z80[/QUOTE]
... doesn't have its own Z80 CPU. All logic on ...Newbie Spectrum developer advice ....Hi, Im new to the site and to spectrum developing - well, not quite, I wrote Spectrum programmes in Basic 30 years ago but then went off into the wo…
... in the current directory. Z80 can also print to a ... . Also, if the top page is going to be swapped ... which are in the top page.
More of ... would extend into the top page before the actual BASIC ... k5*kM:
LET k16k=16384: LET k32k=k16k*k2: LET ...The Disciple clone... doable?Hi. As a spectrum user in the 80's this was the dream interface all-in-one for me. I have a 48k+ and planning on get a 128K toast-rack later. Anyway…
... I can look up the page.[/QUOTE]
The first ... /> If I remember, X128 provides Multiface emulation of some sort, but ... DISCiPLE emulation. Gerton Lunter's 'Z80' emulator allows a 'map' file ...The Disciple clone... doable?Hi. As a spectrum user in the 80's this was the dream interface all-in-one for me. I have a 48k+ and planning on get a 128K toast-rack later. Anyway…
... to determine whether to immediately page themselves out (although this requires ... all passed straight from the Z80 to the expansion bus.
Multiface had to do special things ...SE BasicAfter 13 years of development I thought I'd run out of things to optimize, but it turns out I was wrong. However, I'm now running out of time to work…
... ULAplus screens with LOAD "" CODE 16384: RESET.
[*]Lower ... ULAplus screens with SAVE "screen" 16384, 6976
[*]SCREEN$() ... letters.
[*]Simple code page support in hi-res mode ... divMMC.
[*]Z80 LDIR block copy: PUT 49152, 16384, 6912.[/list]A few questions about ZX Spectrum assemblyHi, I have a few questions about ZX Spectrum assembly language programming: - What's the best assembly tool for ZX Spectrum? I tried a bit the ZXSpi…
... ? The examples provided in that page don't explain how to ... ]ORG 30000
LD HL,16384
LD (HL),255
z80 file).
It says something ...A few questions about ZX Spectrum assemblyHi, I have a few questions about ZX Spectrum assembly language programming: - What's the best assembly tool for ZX Spectrum? I tried a bit the ZXSpi…
... ? The examples provided in that page don't explain how to ... ]ORG 30000
LD HL,16384
LD (HL),255
z80 file).
It says something ...PlusDlite problems with 128K modelsLast year I developed the PlusDlite, and already shipped out a couple of them. Only recently I discovered some problems with 128K models. I remember…
[QUOTE]Tried another Zilog Z80 (the only other one ... /> The multiface 128 manual mentions spectrum crashes and substandard z80's with ... faulty NMI line on it's first page ... might be connected?
By substandard z80 could ...Peeking the contents on screen? How?You will have to forgive me for growing up on the C64, but I know I can peek the location of a character (1024 is top left from memory) and the peek …
... space to avoid having to page in and out RAM and ... are the ROM.
16384-32767 are the first 16K ... Now, the screen starts at 16384. There's 6K of pixel ... stack space used by the z80 CPU.
The ... that character. And the Z80 can add 256 to a ...SpecNextThis looks interesting... http://www.specnext.com/
... />
Features "ULA Plus, divMMC, Multiface, kempston mouse, Interface II joystick ... issues]
No actual z80 on the board but a ... to questions on the Facebook page so I guess if you ...DivIDE 57c update and 128 games?Hi all, Lots of questions ahead!! :) I have found my long lost DivIDE 57c. I have put in my Spectrum 128+ and I spotted that it has 2005 Fat…
... out is to get 128K Z80 and TAP files to find ... /> Because both interfaces need to page ROM, you'll have the ... -DOS and transfer interfaces like Multiface, Pokeador Automáticos, etc. You ...New Utility to Transfer Z80 Snapshot to +3 DiskSince getting a Gotek for my +3 it has been my go to machine. The biggest downside however is the lack of older games on disk format with pretty much…
...
3) Load compressed page 0 into page/bank 2 and decompress ... program will error
4 : @16384-32751 user specified memory location ... :
Z80onDSK snapshot1.z80 snapshot2.z80 compilation1
where "compilation1" is ...XYZ - a multithreaded GUI operating system for SpeccyToday I'm re-starting my unfinished project. A few years ago I wrote the yx multitasking kernel (which includes RAM/ROM versions, threads, memory man…
... the JITer experiment. Z80 to Z80 JIT means you hook ...
[code]LD HL,16384
LD (HL),A
[code]LD HL,16384
LD (HL),A
page memory) and then replace ... entire program, relocate it, page it. But the big ...Standard Development LibrariesSo after some time away I decided to re-register after a Twitter thread (https://twitter.com/SpectrumNez/status/1578158361236963328) led me to a Visu…
... make games, Spectrum hardware and Z80 programming. Just do it!
page switching, writing to AY, standard ... the debugging tools (although a MultiFace and +3 helps when the ...Z80/SNA Compiler under Windows???Does anybody know anything about Z80/SNA compiler under Windows???
Does anybody know anything about Z80/SNA compiler under Windows???TZX / TAP of Glider Rider 128K Can anyone help me find a TZX or TAP version of Glider Rider 128k . The only versions I can find are Z80 snapshots or a TAP file which is a version …
... versions I can find are Z80 snapshots or a TAP file ... the game but has been Multiface saved . I thought I had ...Z80 to DSK?Does anyone know if there is a prog that can convert z80,tzx or tap files to dsk format? I have access to a friends pc that has a 3 inch drive which …
... a prog that can convert z80,tzx or tap files to ... looked at a program called z80 snapshot loader at
[url ...Z80/SNA compiler under Windows???Does anybody know anything about Z80/SNA compiler under Windows???
Does anybody know anything about Z80/SNA compiler under Windows???Visible-Z80 - VISZ80 - by Miklos Patrubany Hi All ! Visible-Z80 - VISZ80 - by Miklos Patrubany Does anyone have this program ? Please help me. I want to learn Z80 and Assambler on Z8…
Hi All !
Visible-Z80 - VISZ80 - by Miklos Patrubany
< ... want to learn Z80 and Assambler on Z80 and I have a ...Spectrum disc/cassette magazinesI was just wondering, what Spectrum disc or cassette magazines are there that are in English? I know of AlchNews, 16/48 and so on, but what else are …
... sounding ones on the Z80 Stealth home page, but
they're ...Converting TAP to Z80Is there an EXE out there that will convert *.TAP into any other snapshot (preverably Z80 or SNA) Please Help Oatesy
Is there an EXE out there that will convert *.TAP into any other snapshot (preverably Z80 or SNA)
Please Help
OatesyMultiface 128I have a Multiface 128 which I'm thinking of selling... Only thinking of it... The button and case are damaged, There are some aesthetic defects (I s…
I have a Multiface 128 which I'm thinking ...Speccy Ringtones for your mobile :)Hi guys Im sure i cant be the first person to think of this, but with the aid of a few software packages, I spent this weekend converting some class…
... .html[/url]
At this page, click on the button to ... free sound. eg Gerton Lunters Z80.
2 Let your favourite ...
