v8 does thing like reserving memory and committing it when needed.
On 28 July 2014 09:35, Dirk Grabbert <dirk.grabb...@gmail.com> wrote: > What's reason a mmu is needed by v8? I got a Cortex M3 with ucLinux. RAM > and Thumb2 are given. > > Am Donnerstag, 21. November 2013 19:33:57 UTC+1 schrieb Rodolph Perfetta: >> >> While you can run Javascript on any hardware, you won't be able to reuse >> common JavaScript VMs (wether be it V8, JavaScriptCore or Mozilla's engine) >> on a Cortex-M CPU. The main limitations are: >> * Thumb/Thumb2 only, though JavaScriptCore does generate Thumb2. >> * no mmu so no fully featured OS such as Linux and this is a show >> stopper. >> * very limited RAM, measured in KiB! So you need VM targeting this class >> of CPU. I have heard of some but I doubt they support the full ECMA specs. >> >> An option may be to look at entry level boards with Cortex-A CPU such as >> the beaglebone black: Cortex-A8, 512MiB RAM, 45$. Not as cheap as an M but >> it would run all the VM quoted earlier. >> >> >> >> On 21 November 2013 16:30, Jakob Kummerow <jkum...@chromium.org> wrote: >> >>> [+v8-users] >>> >>> V8 requires at least the ARMv6 + VFPv2 instruction sets. If I >>> understand correctly, the Cortex M3 only supports Thumb/Thumb2, so V8 won't >>> run on it. >>> >>> Generally speaking, running JavaScript is possible on any hardware -- >>> for example if you use an interpreter-based JS engine instead of a JIT >>> compiler. >>> >>> >>> On Thu, Nov 21, 2013 at 4:28 PM, David Bau <davi...@gmail.com> wrote: >>> >>>> I am looking for a javascript solution for a cheap device (to be used >>>> in schools). My question is: can v8 work on a Cortex-M processor? >>>> >>>> For example, somebody pointed me at this (soon to be relased) solution >>>> http://tessel.io/ - however, it appears that they may not really be >>>> running Javascript but instead some odd translator of JS to Lua bytecodes. >>>> My question is, is it possible to actually run Javascript on similar >>>> hardware? >>>> >>>> Thanks for any insight, >>>> >>>> David >>>> >>>> >>> -- >>> -- >>> v8-users mailing list >>> v8-u...@googlegroups.com >>> >>> http://groups.google.com/group/v8-users >>> --- >>> You received this message because you are subscribed to the Google >>> Groups "v8-users" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to v8-users+u...@googlegroups.com. >>> >>> For more options, visit https://groups.google.com/groups/opt_out. >>> >> >> -- > -- > v8-users mailing list > v8-users@googlegroups.com > http://groups.google.com/group/v8-users > --- > You received this message because you are subscribed to the Google Groups > "v8-users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to v8-users+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/d/optout. > -- -- v8-users mailing list v8-users@googlegroups.com http://groups.google.com/group/v8-users --- You received this message because you are subscribed to the Google Groups "v8-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to v8-users+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
