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Microdrive Serial ProtocolGentlemen, I've been dreaming for a long time to develop a Microdrive emulator, where an SD card loaded with .MDR cartridge images can be accessed t…
Opus and IF1 will fight for the ROM-paging, the M1 line I believe. Anyway M1 (or equal relevant line) is not available at the Opus expansion port. All Opus/IF1 combinations I have seen had a an added (soldered) double throw switch in either Opus or IF1. -
Microdrive Serial ProtocolGentlemen, I've been dreaming for a long time to develop a Microdrive emulator, where an SD card loaded with .MDR cartridge images can be accessed t…
... 708398]Opus and IF1 will fight for the ROM-paging, the M1 ... Opus expansion port. All Opus/IF1 combinations I have seen had ... switch in either Opus or IF1.[/QUOTE]
I ... that, no matter what the IF1 could decode, since the ... NO fight for the ROM paging. -
Interface 1 bisOk, well the postmans just been and brought with him my new arrival, the Interface 1 bis. So as promised I thought I'd share some initial usage exper…
... -install the Basic and Shadow ROM (which was a pain to ... does not have the additional ROM chip on it, which I ... a PC to recognise the IF1 bis in the device manager ... the PC to recognise the IF1 bis in order for me ... -
Interface 1 bisOk, well the postmans just been and brought with him my new arrival, the Interface 1 bis. So as promised I thought I'd share some initial usage exper…
... -install the Basic and Shadow ROM (which was a pain to ... does not have the additional ROM chip on it, which I ... a PC to recognise the IF1 bis in the device manager ... the PC to recognise the IF1 bis in order for me ... -
Is there an SNA halt bug?Hello all, I noticed that some SNAs don't work on my emulator but they do work in almost everyone else's, SPUD fails with them too which is a tad sp…
... the Spectrum ROM was paged in, 0C9h if the IF1 was paged ... -
Is there an SNA halt bug?Hello all, I noticed that some SNAs don't work on my emulator but they do work in almost everyone else's, SPUD fails with them too which is a tad sp…
... the Spectrum ROM was paged in, 0C9h if the IF1 was paged ... -
Is there an SNA halt bug?Hello all, I noticed that some SNAs don't work on my emulator but they do work in almost everyone else's, SPUD fails with them too which is a tad sp…
... "one version of the ROM does . The later version ... longer look at the ROM I disassembled, I'm ... snapshot format used by the ROM I disassembled (which describes ... three separate blocks; to Microdrive, as a single file.< ... , 71h if 48k BASIC ROM paged
003C dw ... -
Is there an SNA halt bug?Hello all, I noticed that some SNAs don't work on my emulator but they do work in almost everyone else's, SPUD fails with them too which is a tad sp…
... 't get it working with IF1 emulation.
Unfortunately, I ... partial disassembly of the Microdriver ROM. -
Is there an SNA halt bug?Hello all, I noticed that some SNAs don't work on my emulator but they do work in almost everyone else's, SPUD fails with them too which is a tad sp…
... 't get it working with IF1 emulation.
Unfortunately, I ... partial disassembly of the Microdriver ROM.[/QUOTE]
Does the ... working with the 1.0 ROM, since that seems to be ... -
Where do you stick the stack?...OK, so I've got a fair chunk of ASM code assembled from 24000 mark. The stack shouldn't get very big, just a few PUSHes and POPs of the main regis…
... ]
It's in ROM so that means it's ... build channels instead?
Kemptson, IF1[/QUOTE]
The z80 ... -
A new site for an old projectThe 'Interface 1bis' project site has been moved to: [url]https://sites.google.com/site/interface1bis/[/url] In fact, it's not only a simple relocati…
... approach used in the ZX Microdrive systems, potentially making it much ... basic one with no additional ROM chips on board). So far ... -
Serious SpectrumHas anyone here used their Spectrum for anything other than gaming and programming back in the eighties? I see all these business and productivity ap…
... the software from tape? disk? ROM cartridge? I assume it was ... an Interface one with a Microdrive. We basically used the Spectrum ... -
Strange INK behaviourThis weekend I hooked up two Sinclair ZX Spectrum with Interface 1 to try out the networking capabilities, and I ended up using parts of the Net Game…
... bugs in the Speccy ROM, but the IF1 ROM could also be the ... running different versions of the IF1 ROM. -
Strange INK behaviourThis weekend I hooked up two Sinclair ZX Spectrum with Interface 1 to try out the networking capabilities, and I ended up using parts of the Net Game…
... 't know much about the IF1's print or net capabilities ... ever used it for the microdrive.
But could you ... -
Strange INK behaviourThis weekend I hooked up two Sinclair ZX Spectrum with Interface 1 to try out the networking capabilities, and I ended up using parts of the Net Game…
... , not in the IF1 ROM, but in the main ROM. All the colour ... .net/Software/Spectrum/Harston/]modified ROM[/url]. -
Interface 1bisHas anyone on here got a "Interface 1bis": [URL="https://sites.google.com/site/interface1bis/"]https://sites.google.com/site/interface1bis/[/URL] I …
... it owns the rights. The IF1 ROM is still owned by Sinclair ... about the use of the ROM. You could have a go ... -
Microdrives load & save routinesHello everybody! Who knows where i can find the machine language routines to load/save from/to ZX Microdrives? Many thanks in advance.
... /MasterYourZXMicrodrive_1stEdition.pdf]Master Your ZX Microdrive[/url] (47mb PDF) and ... /sinclair/books/SpectrumMicrodriveBook.zip]Spectrum Microdrive Book[/url] (21mb ZIP) ... Microdrive Spectrum[/url] (20mb PDF).
The Melbourne House "Shadow ROM ... -
Microdrives load & save routinesHello everybody! Who knows where i can find the machine language routines to load/save from/to ZX Microdrives? Many thanks in advance.
... no IF1 specific hook codes to load or save with the microdrive ... bash at loading files from microdrive via machine code - it's ... -
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…
... 's great to have a ROM that can be distributed with ... .
[*]Improved support for legacy microdrive syntax.
[*]Labels changed to ... code for improved readability.
[*]ROM switching service routine.
[*]SAVE ... -
Addresses in Fuse debuggerFrom Fuse man page: [I]Addresses can be specified in one of two forms: either an absolute addresses, specified by an integer in the range 0x0000 t…
... into memory. RAM and ROM pages are indicated, respectively, ... ]RAM[/I]' and `[I]ROM[/I]' sources (e.g. ... RAM[/I]', `[I]DISCiPLE ROM[/I]', `[I]DivIDE EPROM ... `[I]DivIDE RAM[/I]', `[I]If1[/I]', `[I]If2[/I]', ... RAM[/I]', `[I]Opus ROM[/I]', `[I]PlusD[/I]', ... -
Getting aquainted with the IF1bisToday, fifteen days after dispatch, the IF1bis arrived at my door. In perfect order. No customs, no TVA and no handling fee involved. The arrival of …
... . I have re-read the IF1 instructions and now realise that ... .5 seconds to page the ROM in. When I do that ... the Shadow ROM lights but the keyboard is ... -
Getting aquainted with the IF1bisToday, fifteen days after dispatch, the IF1bis arrived at my door. In perfect order. No customs, no TVA and no handling fee involved. The arrival of …
... .
Setting up the IF1
If I load ... using the Basic and Shadow Rom apps, where do they get ... the ROM images from? Do these need ... is the ROM in my spectrum copied to the IF1?
Dan Antohi or other Interface 1bis GurusHi Dan I've been getting acquaited with the IF1bis and am starting to appreciate how much more it can do than what Im using it for. I've been using…
... ‘Active’ mode and that the IF1 supplementary system variables are present ... area or for insuring 100% ROM compatibility, when loading a snapshot ...ZX Interface 1 ULAs FOUND !!Thanks to Ian Gledhill (of Mutant Caterpillar) we have now acquired a stock of replacement ZX Interface 1 ULAs. These are new old stock and have a d…
... the case of the bad microdrive I/O fault mine suffers ... to know what makes the IF1 tick?
I actually wouldn ...Downloading code to physical hardwareHi folks, Back in the day, my devkit was a TRS-80 and I had a simple connector device from the TRS-80 parallel (printer) port to the expansion bus o…
... usually just load a ROM as an IF2 ROM. With real hardware ... Spectranet bootstrap to install whichever ROM you want at boot.[/QUOTE ... as low level serial and microdrive access only real hardware will ... =guesser;738828]Use a flash ROM. With suitable wiring you can ...Downloading code to physical hardwareHi folks, Back in the day, my devkit was a TRS-80 and I had a simple connector device from the TRS-80 parallel (printer) port to the expansion bus o…
... work with the microdrive and load your test ROM in all-RAM ...Downloading code to physical hardwareHi folks, Back in the day, my devkit was a TRS-80 and I had a simple connector device from the TRS-80 parallel (printer) port to the expansion bus o…
... work with the microdrive and load your test ROM in all-RAM ...IX register - using/problemsAre there any rules on using the IX register? Are there any restrictions on the memory locations that it can access? Yes, I know it's slower than us…
... 's in the original Spectrum Rom[/quote]
That's ... because the ROM is unfinished. It was supposed ... all the code for the IF1.
[quote]Sadly, Sinclair ... of them in the +3 ROM.Getting aquainted with the IF1bisToday, fifteen days after dispatch, the IF1bis arrived at my door. In perfect order. No customs, no TVA and no handling fee involved. The arrival of …
... harder nut to crack. The IF1 system variable IOBORD (23750) is ... . Looking around in the SH-ROM revealed that the 1bis system ... OUT (254),x commands in ROM. The slideshow now takes some ... describe how small adjustments in ROM can be made by means ...Getting aquainted with the IF1bisToday, fifteen days after dispatch, the IF1bis arrived at my door. In perfect order. No customs, no TVA and no handling fee involved. The arrival of …
... in his book "Spectrum Shadow ROM Disassembly". Mr. Carri explains as ... -code level, in respect of microdrive storage operations, and (...)."
(From ... : REM prepare pokes for SH-rom
26 REM #######################
30 ...
