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
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<KitsuWhooa>
<cr1901_modern> I have 2 Sonic 2 carts... one of them has "Mega Drive" on it, the other says "Genesis". Guess one is a "PAL" variant? <-- sonic 2 carts are region free, interestingly enough. At least NTSC-U when it comes to PAL
<superctr>
all versions of sonic 2 are region free
<KitsuWhooa>
well, the japanese one won't fit
<KitsuWhooa>
:p
<superctr>
though the japanese cartridge cannot be inserted into a EU megadrive or genesis without phyiscal modification
<superctr>
the rom itself is the same
<superctr>
you just have to make the cartridge slot a little bigger to fit the JP cartridges
<superctr>
or just use a cleaning cart or some other useless adapter :P
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<andlabs>
I personally used a game genie
<andlabs>
you can also use a 32X but it's a rather tight fit
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<andlabs>
oh speaking of
<andlabs>
is there a pre-existing MD cart PCB that I can use with 2 8-bit eeproms
<andlabs>
I only found one that takes a single 16-bit eeprom
<andlabs>
ideally it should also have a socket
<KitsuWhooa>
nope
<andlabs>
(the one I found was specifically for one time use)
<KitsuWhooa>
all use 16 bit mask roms
<KitsuWhooa>
You're going to have to hack something together
<andlabs>
all what use 16 bit mask roms?
<KitsuWhooa>
all md carts
<andlabs>
nope
<andlabs>
there are indeed some that use 8-bit mask ROMs
<KitsuWhooa>
well then, I stand corrected :p
<andlabs>
in fact, there's one game that uses *three* 8-bit mask ROMs
<KitsuWhooa>
that makes no sense though
<andlabs>
every other byte of the upper 512KB of F-22 Interceptor is open bus
<andlabs>
so every dump the old-fashioned way will produce different results
<andlabs>
you can even see this if you compare different region ROMs
<KitsuWhooa>
also probably doesn't matter
<KitsuWhooa>
but huh
<andlabs>
I guess I can buy a 16-bit EEPROM easily
<andlabs>
but then there's the question of socketing it
<andlabs>
afk
<KitsuWhooa>
if you put a socket, the cover won't really fit
<KitsuWhooa>
I've tried it
<andlabs>
yeah but I want to be able to reprogram =P
<andlabs>
could be an extra long PCB for a cover that's fatter on the upper end
<KitsuWhooa>
you can take out the 16 bit mask rom, put two 8 bit pin-count zif sockets through the plastic and then wire it appropriately
<KitsuWhooa>
:p
<KitsuWhooa>
I think they're 32 pin
<whitequark>
long long pcb
<KitsuWhooa>
I know the shadow of the beast cart has empty space at the top
<KitsuWhooa>
which is perfect :p
<andlabs>
anmd yes I could buy a flashcart (I even have a tototek from 2012 that I never got to work with any parallel port but it's lost now) but I'm trying to see if I can do this for as little $ as possible
<andlabs>
since I already ahve an EEPROM programmer now
<Lord_Nightmare>
I have a d-110, but i don't think that will play u-110 carts
<Lord_Nightmare>
someone on vogons dumped one of the cm32p carts then got hist post nuked and i got told off for asking him to take it to PM
<Lord_Nightmare>
fuck that mod
<Lord_Nightmare>
no, it wasn't Stilett0
<ValleyBell>
Oh, it was one of the 32P cards?
<ValleyBell>
I thought it was the CM-32P PCM ROM.
<Lord_Nightmare>
it was one of the cards iirc
<ValleyBell>
well... Vogons and ROMs is a no-go, I guess
<andlabs>
wait what are we referring to?
<Lord_Nightmare>
someone on vogons dumped a rom, and a mod deleted their post before i could get home and download it
<andlabs>
no I meant which card are we referring to
<Lord_Nightmare>
and then when i asked them to take it to pm to re-link it, the mod edited my request post deleting my request and yelled at me
<andlabs>
it semes like the one ValleyBell got but then you started talking about a separate one?
<Lord_Nightmare>
i think this is a different one
<Lord_Nightmare>
but its possible it could be the same card? i don't know
<andlabs>
eh
<andlabs>
IDK
<Lord_Nightmare>
did the roland u-110 and cm-32p use the same sample cards?
<andlabs>
also I will say it again because I'm not sure if either of you got my message
<ValleyBell>
There are 15 of those cards in total.
<andlabs>
the Roland Boutique D-05 has all of Roland's official D-50 series expansion cards built in
<ValleyBell>
Yes, the card works with the U110 and the CM-32P/CM-64.
<andlabs>
as patch banks P3-P8
<ValleyBell>
and the U220 as well, I think
<Lord_Nightmare>
the d-110 uses different cards but i think they contain not pcm samples (or not ONLY pcm samples?), but la32 linear arithmetic patches
<Lord_Nightmare>
i own a d-110 but no cards for it
<andlabs>
I have a TG-55 but no cards for it yet
<andlabs>
keyword yet
<Lord_Nightmare>
the d-110 sounds like what the mt-32 should have sounded like, it has actually decent piano sounds
<andlabs>
I'm pining for unopened versions, both for dumping and because I'm not sure which packs come in apirs and whichc ome as single cards
<Lord_Nightmare>
the mt-32 was intended as an addon module for a roland piano so they didn't include any piano samples
<Lord_Nightmare>
which was a huge mistake in retrospect
<andlabs>
does hte D-05 have piano sounds?
<andlabs>
er
<andlabs>
D-50
<Lord_Nightmare>
i don't know
<Lord_Nightmare>
i have the sample roms from the base d-50 dumped
<andlabs>
I know one of the xpansion cards had nothing but piano sounds
<andlabs>
maybe they were going fo rthat?
<Lord_Nightmare>
and i have the linearized-wavefile "ROM" extracted from the roland VST thing which includes the expansion sounds too
<andlabs>
heh
<andlabs>
it's probably identical to the one in the D-05
<Lord_Nightmare>
the base d-50 roms, when converted logpcm-to-pcm are bit-identical to the first chunk of that vst "ROM"
<andlabs>
the advantage of the D-05 is that you never need to hook it up to the internet =P
<Lord_Nightmare>
so in theory i could probably make a pcm-to-logpcm converter and 're-logpcm' the remainder of that vst thing
<andlabs>
I still need to see if I can make dosbox or an X68000 emulator use the D-05 as a MT-32
<Lord_Nightmare>
and it probably matches the d50 explains roms
<Lord_Nightmare>
expansion roms
<andlabs>
does the roland VST use multiple P# and multiple U# banks?
<andlabs>
(# being a single digit)
<andlabs>
each bank has 64 instruments
<Lord_Nightmare>
i don't know, i never cracked the vst drm, nor even saw the entire vst
<Lord_Nightmare>
i just got that one file
<andlabs>
oh
<andlabs>
heh
<andlabs>
"The U-110 is a basic rack-mount sound module consisting of acoustic-oriented PCM samples with preset settings, limited flexibility, and boring late eighties sounds"
<andlabs>
ah vintagesynths.com
<andlabs>
always be pessimistic
<andlabs>
anyway I've never opened any of the Roland Boutique synths
<andlabs>
and I don't know if the firmware update downloads are complete firmwares or not
<andlabs>
if they really are based on a SuperH CPU then it lacks byte sequences typical of that CPU, such as 0B 00 09 00 (LE) / 00 0B 00 09 (BE)
<andlabs>
I will say one more thing though if you are interested in Roland LA patch banks
<andlabs>
there's a D-05 download "Legowelt Patch Collection"
<andlabs>
if you load it onto a device it occupies the last two user banks
<Sarayan>
you need a drm cracked?
<andlabs>
no
<Sarayan>
Actually I was asking LN :-)
<andlabs>
I think the answer is still no
<andlabs>
but I don't know their mind
<andlabs>
also finally got around to saving all that floppy disk preservation stuff
<andlabs>
I think I will still go with a zoomfloppy for now since that'll be quicker to set up, and then do flux-level dumps when I can, being sure to not use the original disks between
<andlabs>
I know the copy protection on the disks I'm most interested in preserving ASAP are lemons
<andlabs>
in one case the copy protection is in the main executable but the loader will skip over it if the program is already loaded, so it's as easy as just writing a new loader program
<andlabs>
in another case it's a cartridge ROM that needs to be dumped
<andlabs>
though now i wonder why the flux engine isn't universal...
<Sarayan>
flux engine?
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<andlabs>
someone's open source / open hardware (!) alternative to kryoflux