IRC logs for #openrisc Tuesday, 2012-10-16

juliusban example of why I really want to get rid of the OR1K 256-byte exception vector default sizes, is that you have to waste at least 4k on them, and when you are limited to 32KB it's very annoying18:33
jeremybennettjuliusb: If you really want to pack stuff in, you could interleave it in the spaces between the vectors.18:40
juliusbjeremybennett: that sounds horrible! :-o18:52
stekernI kind of agree, but it could of course be done18:52
juliusbthe architecture just needs to be fixed, and I'm sure it will be :)18:53
stekernbut if it'd be smaller I'd say it could be as small as 4 byte (without delay slot)18:54
juliusbstill, you need contiguous space for the linker to use it don't you?18:54
stekernperhaps even should18:54
juliusbI just think we need registers with the addresses18:55
juliusba table18:55
juliusbjust a pointer to a table18:55
juliusbwhich is an address18:55
juliusberr, which just has an address in it, offset for each exception18:55
stekernwell.. that is what a 4 byte exception ector would be18:55
juliusbyes but at the moment one each has to live at 0x100, 0x200, 0x300 etc18:56
* juliusb doesn't like that at all18:57
juliusbBTW, olofk and I will be going to FSCONS this year to present18:57
juliusbit's in less than a month in Gothenburg18:57
jeremybennettjuliusb: I think this stuff is too deeply ingrained to change for OR1K. But you could make a case for having an exception vector table for OR2K.18:57
juliusbjeremybennett: I agree, it's hard to change18:58
jeremybennettMakes interrupts slower (one more indirection), but more compact.18:58
juliusbwell, it'd be easy to change in the spec, it'd be a pain to have two majorly different exception and reset handling models around the place18:58
juliusbjeremybennett: you make the machine handle the redirection so it's not really slower18:58
jeremybennettMaybe it's for OR3K then?18:58
juliusbhah, no it's _definitely_ a system which'll be used in or2k18:58
stekernwell, interrupts will typically not fit in the 100 byte space anyways, so I don't think it'd be that big difference19:01
juliusbyes, unless you write a particularly compact timer interrupt implementation for baremetal to make benchmark software run a bit faster *ahem*19:02
stekernbah, you don't even want that timer interrupt enabled =)19:07
juliusbwhere are people hosting their presentations?19:22
juliusbi saw olof's are on dropbox19:24
juliusbbut you need to download some software for that?!19:24
stekernyeah, I was there looking too, but didn't feel like installing it on my work computer19:43
stekerncan't you upload files to the wiki?19:44
stekernthere's slideshare, but to download the pdf's you need to register19:44
stekernyou can look at them without registering though19:45
jeremybennettjuliusb: stekern: You can use dropbox just through its web interface.20:06
jeremybennettI actually have their software on my Linux machine, because it's convenient. Just move a file into the dropbox directory and it gets mirrored.20:06
juliusbHow is it done via the web interface?20:11
juliusbI see20:13
juliusbthe "Dropbox" link in teh top left hand corner after you register and sign in20:13
stekernjeremybennett: ah, ok, I didn't see the register button up there when I looked at it at work20:34
stekernjust the huge "Download dropbox" button ;)20:34
juliusbyeah scared me off20:36
juliusbso I actually updated my slides with a couple of pages on some topics I discussed during the presentation but didn't have on the slides20:43
juliusblicensing, noted in the discussion page that the dhrystone and coremark on the board favoured mor1kx20:44
juliusband added URLs to the repos20:44
simoncookI've added all the videos I've uploaded (all but the last two) to the wiki page along side audio versions of all videos. Last two videos will upload overnight and I'll update the two missing links in the morning20:44
stekernheh, I noticed, got a conflict when I tried to add the slides ;)20:45
olofkjeremybennett: Can you dig up some info about that open source core managment thing from broadcom and whoever else it was. I can't find a word about this on the internet23:40

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