Conversation with #inferno at Tue May 12 03:08:42 2009 on powerman-asdf@irc.freenode.net (irc)
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(10:14:50) mjl-: does anyone know of thumb-2ee?
(10:15:08) mjl-: i read a bit about it yesterday.  seems like it might be useful for inferno dis jit
(10:15:16) mjl-: plain thumb-2 as well perhaps
(10:15:24) mjl-: s/perhaps/i bet/
(10:18:58) mjl-: not that i have a processor that those thumb-2ee or even thumb-2 :)
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(14:30:53) mjl-: ah, i see those beagle boards have a arm cortex-a8.  they do thumb-2ee
(14:35:07) gualteri: limbo is listed as a target for thumb-2ee: http://en.wikipedia.org/wiki/ARM_architecture#Thumb_Execution_Environment_.28ThumbEE.29
(14:36:55) mjl-: yeah, i was surprised by that
(14:37:18) mjl-: i don't think the compilers can generate code for it
(14:37:29) mjl-: so either there is no such compiler, or it is closed
(14:37:56) mjl-: learning/reading the plan 9/inferno c compilers is on my todo list though.  would be a very neat project
(14:39:34) gualteri: well, afaik thumb-2ee would not be generated by cc but by a libinterp/comp-thumb2ee.c
(14:40:03) mjl-: good point
(14:40:42) andguent: strange indeed
(14:40:48) andguent: maybe just stupid wikipedia
(14:40:58) mjl-: though thumb-2 would probably be generated by the compilers
(14:41:21) mjl-: i think that page on wikipedia mostly says that it's useful for limbo
(14:41:30) mjl-: not that it is actually implemented
(14:41:48) andguent: any processor should come in handy for that matter
(14:41:50) mjl-: but it's really the dis vm that it is for.  but same applies to java vs jvm i guess
(14:42:24) andguent: well still JIT is explicitly mentioned in the same sentence
(14:42:27) mjl-: andguent: those instructions are specifically for vm's, helping with array bound checking etc
(14:43:17) andguent: pah. array bounds
(14:43:31) andguent: bare metal x86 grinding...that's the way to go
(14:43:38) andguent: i am becoming mad. i guess
(14:43:48) mjl-: jups :)
(14:44:41) andguent: a propos jit... does anyone happen to know why jitting is disabled int libinterp on osx?
(14:46:18) mjl-: there has been some messages about that on the mailing list
(14:46:29) mjl-: is it intel mac os x or powerpc?
(14:46:33) mjl-: probably intel...
(14:46:45) mjl-: i think they have some stuff that makes it incompatible with i386
(14:46:51) mjl-: very vague recollection
(14:47:55) andguent: k
(14:48:20) ***andguent appends it to todo list
(14:51:17) mjl-: the ever-expanding list!
(14:52:47) andguent: i don't even try to think about it
(14:53:05) andguent: it's just there and i pick one at random next time i have free time for something new to do
(14:58:18) mjl-: yeah same here
(14:58:28) mjl-: but i add new things both when i have free time and when i don't
(14:58:49) mjl-: luckily i also lose interest in some things, so i can strike them off without finishing them ☺
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