ChanServ changed the topic of ##yamahasynths to: Channel dedicated to questions and discussion of Yamaha FM Synthesizer internals and corresponding REing. Discussion of synthesis methods similar to the Yamaha line of chips, Sound Blasters + clones, PCM chips like RF5C68, and CD theory of operation are also on-topic. Channel logs: https://freenode.irclog.whitequark.org/~h~yamahasynths
<andlabs>
is it possible to do accurate amiga disk rips using an actual amiga 1000 floppy drive
<andlabs>
and software
<andlabs>
or do I have to resort to waiting for an open source alternative to kryoflux that actually confirmed to work on amiga disks (because fluxengine isn't)
<Lord_Nightmare>
the oldest versions of the catweasel i think were dual isa/zorro cards
<Lord_Nightmare>
and those in an amiga 1000 could do it
<Lord_Nightmare>
there was supposedly some rumored special software for the amiga 1000 that sps worked on, i don't know if it existed or not
andlabs has quit [Ping timeout: 264 seconds]
kode54 has joined ##yamahasynths
enthdegree has joined ##yamahasynths
_whitelogger has joined ##yamahasynths
<cr1901_modern>
Anyone remember the name of the SPI Yamaha synth chip? It had 5 digits IIRC
_whitelogger has joined ##yamahasynths
_whitelogger has joined ##yamahasynths
<kode54>
I could have told andlabs
<kode54>
there probably aren't that many people who still use floppy disks
<kode54>
I would not expect hundreds of reviews on anything related to them
<kode54>
maybe enough to count on one hand
<cr1901_modern>
Yea, this channel doubles as a place to describe floppy disks for some reason I forget
<kode54>
wat
<kode54>
I know these old synthesizers would involve use of floppy disks
<cr1901_modern>
Well sure, but I meant stuff like floppy disk theory of operation in addition to floppy disk aesthetic (tm)
<cr1901_modern>
What would you store on a floppy disk for a synth? Patches? As opposed to uploading them over SysEx?
<kode54>
heh
<kode54>
well, I meant, since many of them would be in old computers
<cr1901_modern>
Ooooh... yea, Sound Blaster drivers, etc (I still have disk images for many of those somewhere...)
_whitelogger has joined ##yamahasynths
__sen has quit [Ping timeout: 256 seconds]
__sen has joined ##yamahasynths
glowcoil has quit [Ping timeout: 240 seconds]
glowcoil has joined ##yamahasynths
futarisIRCcloud has quit [Quit: Connection closed for inactivity]
Xyz_39809 has joined ##yamahasynths
Xyz39808 has quit [Ping timeout: 246 seconds]
Xyz39808 has joined ##yamahasynths
Xyz_39809 has quit [Ping timeout: 246 seconds]
Xyz_39809 has joined ##yamahasynths
Xyz39808 has quit [Ping timeout: 246 seconds]
_whitelogger has joined ##yamahasynths
superctr_ has joined ##yamahasynths
superctr__ has quit [Ping timeout: 246 seconds]
futarisIRCcloud has joined ##yamahasynths
cr1901_modern has quit [Read error: Connection reset by peer]
_whitelogger has quit [Remote host closed the connection]
_whitelogger_ has joined ##yamahasynths
cr1901_modern has joined ##yamahasynths
Xyz39808 has joined ##yamahasynths
Xyz_39809 has quit [Ping timeout: 246 seconds]
andlabs has joined ##yamahasynths
<andlabs>
man I love it when freenode goes down litedrally minutes after I say something
<andlabs>
Lord_Nightmare: ah so I can't write some softwar efor workbench (or even as a booter) to do it? blah
<andlabs>
kode54: I guess I had too high hoeps? either way I bought some random ones on ebay
<andlabs>
and as for old synths using floppy disks, welcome to #ensoniqsynths
<andlabs>
(there's actually a program for amiga that can read ensoniq mirage floppies and convert them into paula samples)
<cr1901_modern>
No no no, it needs to be ##ensoniqsynths
<cr1901_modern>
note the double hash
<Foone_>
Lord_Nightmare: so I'm in touch with digshadow now! turns out I already knew them, just under another name. They live real near me. Did you have a chance to desolder the chips? If not, I've got my hot air rework station set up now, so I can do that and then hand them over to digshadow to dump.
<Foone_>
they confirmed they have the runfei and it can dump these PALCEs
<whitequark>
andlabs: glasgow should be able to dump amiga disks, i actually have one i can test it with
<whitequark>
hm, i can't seem to find it. anyone can send me one?
<andlabs>
fine fine fine I'll get glasgow already =P
<Foone_>
I've got a pile of amiga floppies but annoyingly they're all on loan. I'm not sure I have any extras I could send
<whitequark>
Foone_: just to confirm, amiga floppies have the same magnetic properties as PC DD floppies, right?
<whitequark>
i.e. the AGC in a PC floppy drive will handle them just fine
<ej5>
yes it will
<andlabs>
are there any 3.5" floppy formats that are different
<andlabs>
I thought the point of microfloppy was to be an industry standard
<andlabs>
or I guess I should say 3.5" microfloppy diskette that has the specific cassette shape we've all come to know and love
<andlabs>
so what do I need to get to get glasgow anyway
<ej5>
basically amiga just packs the sectors in closer, and the sector format is slightly different
<ej5>
so it gets 11 sectors per track instead of 9
<ej5>
the way it does this is that it writes an entire track at a time using the custom chip. it can retain the whole track's sectors in memory, so those are all written at once even if you only modify once sector.
<ej5>
normal PC floppy has a gap between sectors to allow the write gate time to open and close
<ej5>
if you compare the extracted clocks, you can actually detect timing differences in sectors written by different computers
<andlabs>
Foone_: that looks interesting
<andlabs>
I wonder if it can be combined with the flux engine somehow
<andlabs>
also now I wonder if FDI format is better or worse than IPF
<andlabs>
which is the equivalent of C64 NIB?
<KitsuWhooa>
andlabs: curious, why do you say fluxengine hasn't been tested with amiga disks?
<KitsuWhooa>
I mean, I know nothing about it, but the support table on github says it has been tested
<KitsuWhooa>
Unicorns (unicorn) are completely real --- this means that I've read actual, physical disks with these formats and so know they work (or had reports from people who've had it work).
<andlabs>
....
<andlabs>
gah that's not what unicorn means in software development
<KitsuWhooa>
a simple ✔️ or ❌ would've prevented this
<andlabs>
or maybe I'm confusing it with pony
<andlabs>
IDK
<andlabs>
also always amused by this:
<andlabs>
FormatNotes
<andlabs>
AES Superplus / No Problemhard sectors!
<andlabs>
Victor 90008-inch
<andlabs>
Zilog MCZ8-inch *and* hard sectors
<andlabs>
it also doesn't help that the other emoji is not universally supported
<andlabs>
🦖
<andlabs>
whatever that is
<andlabs>
apparently it's not unicode enough for macOS 10.12
<andlabs>
*: these formats are variations of the generic IBM format, and since the IBM writer is completely generic, it should be configurable for these formats… theoretically. I don’t have the hardware to try it.
<andlabs>
if that's the case, why are only the write columns starred
<andlabs>
will this not actually catch copy protection schemes in atari st games?
<KitsuWhooa>
maybe it's because someone else tested it for them
<KitsuWhooa>
and that person didn't test writing
<kode54>
andlabs: nah, I wouldn't say you had too high hopes
<kode54>
just that you're part of a very niche demand for floppy disk supplies
<kode54>
I wish you luck in getting a good storage system
<andlabs>
heh
<andlabs>
@ KitsuWhooa
<andlabs>
kode54: well despite my best efforts I have wound up with a bunch of loose c64 and amiga disks which is why I say =P but thanks
<kode54>
yup, that's quite a collection
<kode54>
I have some Apple IIgs floppies
<kode54>
and no equipment to test if they're still readable
<andlabs>
*despite my best efforts to get boxed software only
<andlabs>
ugh another thing I wish both the flux engine project and that project Lord_Nightmare linked earlier about the amiga did was actually say which drives worked for them