Am Donnerstag, 19. Mai 2016 23:25:15 UTC+2 schrieb Tobias B. Besemer: > Am Donnerstag, 19. Mai 2016 23:03:16 UTC+2 schrieb Tobias B. Besemer: > > Am Donnerstag, 19. Mai 2016 22:59:35 UTC+2 schrieb Tobias B. Besemer: > > > Am Donnerstag, 19. Mai 2016 22:00:55 UTC+2 schrieb Nathan Froyd: > > > > On Thu, May 19, 2016 at 1:58 PM, Tobias B. Besemer wrote: > > > > > Question is: > > > > > If Mozilla will really "Backout MSVC 2015 from aurora" because 2 > > > > > people are not able to configure there PCs right in BIOS ??? > > > > > https://bugzilla.mozilla.org/show_bug.cgi?id=1270664 > > > > > > > > Perhaps those people deliberately disabled SSE in their BIOS for > > > > testing purposes. Which is valuable, because very few Firefox > > > > developers are testing on non-SSE capable CPUs. > > > > > > > > In any event, you misunderstand the cause here. We're not backing out > > > > MSVC changes just because of these two users. We're backing out MSVC > > > > changes because other infrastructure (the update server, the > > > > installer, etc.) isn't yet prepared for the SSE-required world we > > > > appear to be moving towards. Making those changes deliberately in 49, > > > > rather than being surprised by it in 48, ensures a better experience > > > > for everyone (e.g. Firefox doesn't mysteriously start crashing when > > > > upgrades happen). > > > > > > > > -Nathan > > > > > > OK, means if there is no switch back to the older compiler, the compiled > > > app wouldn't run without SSE2? > > > > Sorry! Mean: Compiled with MSVC 2015 Firefox wouldn't run on Windows PC > > with a Pentium II processor, or older (older then 1999)... ^^ > > https://en.wikipedia.org/wiki/Streaming_SIMD_Extensions > > Here some truths about SSE... > > "In computing, Streaming SIMD Extensions (SSE) is an SIMD instruction set > extension to the x86 architecture, designed by Intel and introduced in 1999 > in their Pentium III series processors as a reply to AMD's 3DNow!" > https://de.wikipedia.org/wiki/Streaming_SIMD_Extensions > > ...so the last processor _without_ SSE is a Pentium II... > https://en.wikipedia.org/wiki/Pentium_II > > Tech specs: > Produced: From mid-1997 to early 1999 > Max. CPU clock rate: 233 MHz to 450 MHz > FSB speeds: 66 MHz to 100 MHz > > Requirements for Win7: > [...] As expected, Windows 10 follows more in the line of 7 than it does 8, > wrapping all but the most pitiful of PCs under its umbrella of coverage. > Given that Microsoft plans to support 10 universally across a wide variety of > smartphones, tablets, laptops and desktops, it’s not exactly surprising that > you can almost run the new OS on a toaster if you really wanted to. > Minimum system requirements for Windows 10 include a 1GHz processor or faster > (single-core). 1GB of RAM will be necessary for the 32-bit version, while > you’ll need to bump your computer up to 2GB if you plan on picking up the > 64-bit build. [...] > http://www.digitaltrends.com/computing/according-to-microsofts-specs-a-toaster-could-run-windows-10-so-you-probably-can-to/ > > But a Pentium II have only max. 450 MHz! > > Requirements Vista... > Windows Vista Home Basic: > - 800-megahertz (MHz) 32-bit (x86) processor or 800-MHz 64-bit (x64) processor > - 512 megabytes (MB) of system memory > Note On system configurations that use system memory as graphics memory, > at least 448 MB of system memory must be available to the operating system > after some memory is allocated for graphics. > [...] > https://support.microsoft.com/en-us/kb/919183 > > ...doesn't work with Pentium II! > > Now XP... > Hardware requirements: > To install SP3 on a single computer, your computer must have a CD-ROM drive > and at least the following: > A 233 megahertz (MHz) processor > 64 megabytes (MB) of RAM > 900 MB of available disk space during installation > https://technet.microsoft.com/de-de/library/cc507836.aspx > > ... so yes, you can install a WinXP on a Pentium II! > > But this OS have some security vulnerabilities... > ... to be exact: 70! > https://www.cvedetails.com/vulnerability-list/vendor_id-26/product_id-739/cvssscoremin-5/cvssscoremax-5.99/Microsoft-Windows-Xp.html > > But if Mozilla spend enough time the next days, you will be able to run > Firefox 48 on a Windows XP, that have - if all fixes installed - 70 security > vulnerabilities, with a Pentium II from 1998... ^^
Comment 1 says "Downgrade to VS2013 due to unwanted SSE instruction insertion"... https://bugzilla.mozilla.org/show_bug.cgi?id=1270664#c1 Or is this wrong ??? https://en.wikipedia.org/wiki/Streaming_SIMD_Extensions https://en.wikipedia.org/wiki/SSE2 _______________________________________________ dev-platform mailing list dev-platform@lists.mozilla.org https://lists.mozilla.org/listinfo/dev-platform
