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Comments:
<0> Brainix: yo
<1> geist: Do you know why Apple isn't releasing iTunes for Linux?
<0> hehe
<2> moin
<3> j0!
<0> whatchoo talkin bout
<2> not much
<2> got a exam today
<3> What exam?
<2> digital technology - stuff like flipflops,how memory works internal, how alus work internal, some stuff about binary-signal-transmiting
<3> Hah
<3> Fun :)
<2> not really
<3> I like it..built a little BCD-up-down counter back then at school, with a few flipflops :D
<2> you dont like it if you need to write down a layout for a 32 bit memory
<3> lol
<4> hi
<0> yo
<5> hi
<6> booh!
<7> gr00ber makes an interesting point.
<7> I never would have thought of that =/
<6> hohoho
<4> re
<8> i guess i really have to implement multitasking :o)
<8> it's come to a point where there's no way back
<6> kcdarookie, good luck
<8> thank you :)
<6> *tilt*
<9> seems like I have lost a domain name ... I have completely forgotten where the website is hosted.
<6> try 127.0.0.1
<8> kanzure: whois?
<8> www.whois.sc
<9> kcdarookie, after seeing the whois data, I am starting to wonder who the hell these guys are heh'
<8> you can see where the website is hosted in whois?
<8> or at ripe.net
<9> No, that is the domain information
<9> ripe.net ?
<8> whats the domain?
<9> oh, apparently http://securetechservices.com/ is GoDaddy
<8> :)
<9> GoDaddy doesn't offer hosting, do they ??
<8> i guess so
<10> Most registrars offer hosting.
<10> They really try to sell you on it, too.
<9> I hope that this site isn't hosted locally, that would make me look bad
<9> ahh, good - apparently the person is using some hosting service I never recommended
<8> http://who.godaddy.com/whoischeck.aspx?Domain=SECURETECHSERVICES.COM
<8> can someone please tell me why the timer interrupt is not firing any more after a schedule() .. in schedule() there is a context switch to the process function
<10> kcdarookie: Because... you don't clear the timer interrupt at the PIC or at the timer chip?
<8> how do i clear it ?
<8> :o)
<8> do you meant outportb(0x20, 0x20); ?
<10> At the least. And if it was the RTC, you need to read the status byte from the RTC chip and ack the other PIC.
<8> i also acked the other chip if i understand that right .. with outportb(0xa0, 0x20);
<8> the problem is that the timer int always fires .. but not after a context switch
<6> cuz' you aint' turning interrupts back on prolly
<8> there is no cli inside the code ...
<6> well, if you do dumb things like switching inside the timer function, interrupts are off
<6> if you are using an interrupt gate
<6> or are you using a trap gate, or don't you know?
<8> i dont know :)
<6> so this would be a nice time to pick up those Intel manuals, Part 3
<8> where should i do the switchting when not in the timer function?
<6> i'll be happy to discuss that when you have gate types under control
<6> but, sure, scheduler() _can_ be called from a timer function (or more usually - the irq boiler plate's lower half)
<8> i just found out that i have interrupt gates :)
<6> then your thread startup function better turn on interrupts
<8> so you mean there has to be a sti in the thread startup func?
<6> yup
<8> ok thanks
<6> I ***ume you have some sort of a proxy function that in turn calls the actual thread function
<6> before calling the actual thread function, do a sti
<6> also, ***ert like hell
<6> :)
<8> ok nice to know. thanks for the information, many many thanks
<10> Or, if you're doing a transition back to ring 3, make sure that the interrupt flag in the saved eflags on the stack is set.
<6> on that stage, hopefully only ring 0 is in use...
<6> at*
<11> do software interrupts need to reset the interrupt controller?
<10> No, only hardware interrupts do.
<11> thanks.. that's what I thought
<6> Twist and Shout!
<12> no, wait. I rather pick the coffee and shout
<6> feel free
<13> Hi. What emulator/simulator would you recommend for developing a standalone (toy) os for ppc64 (qemu?)?
<6> I have no ****ing idea
<14> hmm
<14> psim ?
<6> but google appears to have all the answers
<10> I'd give qemu a try. Or real hardware.
<14> Does QEMU have ppc64 support?
<14> maybe you could use systemsim
<10> Oh, sorry, thought you said something other than ppc64.
<13> nyef: I have no real hardware. And I'm unsure about qemu support (both wrt openfirmware and ppc64)
<14> but psim works good, and is integrated with gdb
<14> I use Simics.
<14> for reasons that are ... well, obvious.
<13> I don't have windows.
<14> why do you need Windows?
<13> for psim?
<14> psim is included in gdb
<14> if you compile gdb for a ppc64 target you will get psim
<13> hm
<14> just run "target sim" in gdb
<14> but you can also run it standalone
<13> this simulates openfirmware etc?
<14> http://sourceware.org/psim/
<14> yes
<14> I ported my OS to powerpc with psim
<13> jrydberg_: thanks. looking for psim in google gave me an other result
<13> psim _really_ looks cool
<14> yes, and it is ten years old
<12> what's the rationale behind adding that to gdb?
<14> :)
<14> wobster: it was the only free ppc simulator out there, and then andrew got hired by cygnus. so they put it in there
<14> there are several simulators included in gdb
<14> wobster: http://sources.redhat.com/cgi-bin/cvsweb.cgi/src/sim/?cvsroot=src
<12> ah. I see. Maybe - someday - I should read the whole fantastic manual :)
<14> anyhow, gotta get home. see you in an hour
<12> later jrydberg
<14> i have my other client on, so if you ask anything ness i'll see it when i get home
<14> that goes for the rest of you as well
<13> bye jrydberg (and thanks)
<12> ness, I don't know it that's still up-to-date http://www-128.ibm.com/developerworks/library/pa-emulation.html
<12> I guess so. .. You can find hollis in #grub from time to time.
<13> jrydberg_: does psim emulate ppc64? (I think you said that already, but the article wobster posted says otherwise).
<1> I've noticed a funny pattern. At this coffee shop, Windows users always ask me, "Is your internet working?" Mac users never ask me that. LoL!
<15> guys, I plan to use mplayer to show the effect of using different HZ (timer frequency). Here is the idea: run mplayer to play a DVD and record the average frame rate. Compare this number from different HZ...
<15> any thoughts?
<1> the_hydra: Benchmarking is always tricky. Will the configurations be *exactly* the same except for the same frequency?
<1> Same hardware?
<15> yep same hardware
<15> just changing the HZ
<1> Then it should be a valid benchmark. :-)
<1> You're changing the CPU frequency?
<16> the_hydra: i'm not sure that you're gonna measure a sensible difference
<13> jrydberg: seems to be supported (there is a enable-sim-bitsize switch to configure)
<15> Brainix: nope...it will be run on Athlon XP (not mobile AMD, thus cpu freq will stay the same)
<15> kos_tom: hmmmm
<15> kos_tom: how about audio recording, that would make any difference with different HZ?
<16> the_hydra: that could, probably
<15> kos_tom: ok...thanks
<15> Brainix: and thanks to you too :)
<1> the_hydra: Good luck. :-)
<15> Brainix: :)
<15> kos_tom: how is the work going?
<16> the_hydra: well, thanks
<15> kos_tom: and too bad, France is almost a world cup winner :)
<2> yo
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