Conversation with #inferno at Sun Mar  4 17:54:39 2012 on powerman-asdf@irc.freenode.net (irc)
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(23:16:37) octetta: Hey, mjl just brought up the code portion of his website. Yipee!
(23:17:29) octetta: Although shamefully, I resorted to Lua code to scrape the web interface for tgz files instead of using 9P2000.
(23:17:31) octetta: ;)
(23:18:28) octetta: I've endeavored to try to do something with Inferno/Limbo rather than just leeching of y'alls code.
(23:19:47) octetta: 1st project (simple, I know) is an interface between Limbo and ChucK (which is a neato audio generation tool... kinda like a post-modern csound)
(23:20:15) octetta: I'd mentioned this on the inferno-list years ago but never did anything.
(23:21:31) octetta: 2nd might be a Markdown and nroff to mobi (Kindle format) converter so I can have inferno man pages on my Kindle.
(23:22:51) octetta: Y'all know if there's a common idiom for handling endian-ness issues in Limbo?
(23:23:47) octetta: For the Limbo-to-ChucK interface, I have to create binary packets.
(23:25:24) octetta: I've gotten spoiled by a Lua library (inspired by a Perl library) that will pack and unpack binary data via a string-based format specifier (kinda like scanf/printf specifiers but different)
(23:31:25) octetta: I also covet Erlang's bit syntax for dealing with this kind of stuff.
(23:32:12) octetta: I feel like that crazy guy at the bus station who has a wonderful conversation even if no one is around to talk back ;-)
(00:09:28) vsrinivas: we're here!
(00:09:33) vsrinivas: just not always around.
(00:10:22) vsrinivas: no good answer wrt pack/unpack // format specifiers, sorry
(00:46:03) octetta: i see the same "idioms" in Limbo that I've seen (and used) in C and others... lots of little functions that do shifting and OR-ing. In places where I have to make lots of layout dependent binary buffers this is tedious. I guess the thing that makes this challenging in statically typed languages is how to match the dynamic parts (the packet layout piece) match the static parts.
(00:52:00) vsrinivas: hm yea, a challenge. sadly inferno doesn't really allow dynamically constructed format strings to print... ;
(00:52:06) vsrinivas: but don't forget the 'any' type.
(00:57:08) octetta: So in "bpack" in Lua, an example might be: I want to pick out a big-endian 16-bit value, a big-endian 32-bit value, and a counted string (length being a big-endian 16-bit value), I could use 'n,b16,b32,str=string.unpack(buf,">H>I>P")' ("n" is the index in the buffer where unpack stopped)
(01:01:37) vsrinivas: sure, i've written myself a similar thing in C.
(01:02:33) octetta: what's the "any" type?
(01:04:08) octetta: vsrinivas: IIRC you were working on GPS-related stuff.
(01:04:22) vsrinivas: octetta: yep!
(01:04:43) octetta: still having fun?
(01:05:19) vsrinivas: not using limbo anymore. that project is long over, i've left that job...
(01:05:21) octetta: (i had the "pleasure" of shoving AGPS data into a chipset via a wacky protocl)
(01:06:13) octetta: You still East Coast? BTW, we met at Athens for IWP9 a few years back. I was working for Cisco near Atlanta.
(01:06:26) vsrinivas: yep, still east coast!
(01:06:40) vsrinivas: i'd remember you by real name probably?
(01:06:42) octetta: I'm "bi-coastal" now. Job in NorCal, house/family back East.
(01:06:45) octetta: Joseph Stewart
(01:07:01) vsrinivas: oh, cool! i remember you!
(01:07:29) octetta: i'm "fostering" putting intel architecture into phones/tablets.
(01:07:34) octetta: sign
(01:07:35) vsrinivas: nice!
(01:07:36) octetta: sigh
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(01:07:49) vsrinivas: why sigh? i used a moorestown dev phone one, its totally cool.
(01:08:11) octetta: we're medfield now... more codenames later
(01:08:28) octetta: only sigh because of the mess that is linux and android
(01:08:30) vsrinivas: medfield could only be better, right?
(01:08:38) vsrinivas: the mess before was meego and moblin...
(01:08:51) vsrinivas: [and oh god some vendor crap that was death and fire]
(01:08:54) octetta: oh, the mess still lives on in various places
(01:09:31) vsrinivas: oh boo.
(01:09:48) octetta: i had to write a LCD panel driver and my head exploded at the number of layers down to the controller registers
(01:10:15) vsrinivas: the vendor mess i worked on once ... every app was a shared object rather than a separate process. because they wanted only one opengl session per the whole system.
(01:10:25) vsrinivas: and so the apps asked for it from the home screen.
(01:10:38) octetta: wow... that's "unique"
(01:10:57) vsrinivas: [was on a moorestown phone board]; they also had an h.264 live wallpaper on screne.
(01:11:06) vsrinivas: was a complete disaster the way they did it.
(01:11:21) vsrinivas: each home screen's wallpaper was playing, all the time, (cpu-decoded)
(01:11:38) octetta: makes for a nice hand-warmer ;)
(01:11:40) vsrinivas: just selecting one home screen didn't stop decode on the other ones!
(01:11:41) vsrinivas: yea.
(01:12:03) vsrinivas: even with all that crap, the phone consumed not-unbelieveable amounts of power.
(01:12:33) octetta: on the upside of intel arch on the phone, plan9 or inferno are less challenging than some arm parts ;)
(01:12:38) vsrinivas: :)
(01:12:51) vsrinivas: i was thinking the same way wrt dragonfly bsd :P (and little NAS boxes)
(01:12:54) octetta: but to be honest, i haven't put inferno there
(01:13:01) vsrinivas: aww...
(01:13:36) vsrinivas: the legacy of the lucent webphone! nice to have inferno on a phone :
(01:13:39) vsrinivas: :)
(01:14:07) octetta: i haven't contacted the "hellaphone" guys yet to see if they're interested in an Intel phone. yet.
(01:14:20) octetta: :)
(01:14:37) vsrinivas: i can't believe they did that
(01:14:56) octetta: lots of fun!
(01:15:27) octetta: it's kinda sad that we have to use dalvik instead of dis!
(01:15:53) vsrinivas: i wonder how dis (the VM) will do vs dalvik.
(01:16:25) octetta: i guess i should fire up your linpack there and find out (you did do linpack.b, right?)
(01:17:39) vsrinivas: nah, just an fft.
(01:17:43) vsrinivas: *not fft, ft.
(01:18:11) octetta: oops.
(01:18:47) vsrinivas: i can remember that one (via correlation w/ basis functions)
(01:21:52) vsrinivas: on my cortex a8, java 6 sun vm was faster than gcc -O
(01:25:35) octetta: wow
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