Firefox (nightly) 23 - 32 And 64 Bit
Hypnosec writes 'Plans for by Mozilla in a bid to concentrate more on the 32-bit version. Eliminating the 64-bit nightly builds was, a Firefox developer, last week. Some of the reasons Smedberg cited include missing plugins for 64-bit version; lack of windowproc hooking which facilitates smooth functioning of whatever plugins are available; and the inability to work on the crash reports submitted for the 64-bit versions because they were not on high priority. The proposal, it seems, has been accepted as is.' The bug tracking system seems unable to differentiate between 64-bit and 32-bit builds, causing a few issues since Windows 64-bit builds are much buggier.
Firefox Nightly Ftp
They also intend to reintroduce 64-bit Windows nightlies some time next year. It's 'hard' only because it's a huge - yes really - number of lines of code. Gigantonormous numbers.Pointers are the main reason why software don't port between 32 and 64 bit easily. It was the same in the transitions from 8 to 16 and 16 to 32. The power of C is being close to the hardware, with less overhead.
The curse of C is being close to the hardware, being harder to move to new 64-bit hardware. This is a known trade-off and it's worth it. People who don't believe it write hardware independent Java. The switch from 32 to 64 is a lot less painful than 16 to 32, because the memory model didn't change.Even if you are writing in C, most code is probably fairly agnostic to 32- vs.
Firefox (nightly) 23 - 32 And 64 Bit Difference
But if you do things like cast pointers to ints, or use byte-based arithmetic when interacting with structures or unions, then you'll run into trouble. C code that conforms to the standard should be fairly portable from 32 to 64 bit, though, and this is yet another situation where the value of the standard and well-designed code pays off.
DLL Hell and the closed source nature of most Windows code.Lets say you have Windows App A, it has a tie in to Windows App B which uses licensed somecode32.dll. Unless the maker of somecode32.dll releases a somecode64.dll and Windows App B recompiled to 64-bit, Windows App A has to stay 32-bit. Since there is such an insanely huge install base of 32-bit programs that are still being used but not actively developed that Windows developers stick with the lowest common denominator.The other half is development. Pointers are the main reason why software don't port between 32 and 64 bit easily.
Firefox Nightly 32 Bit Download
It was the same in the transitions from 8 to 16 and 16 to 32. The power of C is being close to the hardware, with less overhead. The curse of C is being close to the hardware, being harder to move to new 64-bit hardware. This is a known trade-off and it's worth it. People who don't believe it write hardware independent Java code etc, and as observed, their software usually don't provide all the desired features, hence people stick with the software written in languages closer to the hardware.To elaborate, pointers are variables which point towards specific places in memory, and are quite useful for passing data between functions (or even other programs) without having to copy the data. A 32 bit pointer can not point to any address space beyond the 32-bit limit (4GB), so 64 bit pointers are needed in 64 bit systems, assuming they have m.because when a developer uses windows, they suddenly do really stupid shit.I recall a programmer porting from linux to windows that decided it was a good idea to install to and write data out to a system folder (I think it was /windows/system32/). It was the author of the electric sheep screensaver that did this really boneheaded thing.
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They wouldnt even dream of doing something like that under a.nix, but there they are doing it on windows.Anyways, I suspect many of the bugs in mozillas 64-bit bu. I recall a programmer porting from linux to windows that decided it was a good idea to install to and write data out to a system folder (I think it was /windows/system32/). It was the author of the electric sheep screensaver that did this really boneheaded thing. They wouldnt even dream of doing something like that under a.nix, but there they are doing it on windowsWhat's the equivalent under Windows to /usr/share or /usr/bin or even /usr/local/share or /usr/local/bin? All Windows has for software packages that aren't part of the operating system is%ProgramFiles%, which is more like /opt in that it is divided by package at a higher level than by executable (./bin) and non-executable (./share) files.
As far as /usr/bin vs /usr/local/bin vs /bin vs /opt, windows doesnt have a conceptual differentiation between 'official' parts of the 'distribution' and programs the user installs that are not an 'official' part of it, although quite a few things that I guess would be considered 'expected to always be there' are in%WINDIR% such as regedit, notepad, explorer, etc. But more than a few times I've seen Microsoft employees lament the fact that its necessary to keep those programs there because so much legacy. I'm not sure why a 32-bit Linux application would need a 32-bit kernel? Unless it's poking deep in the guts of the system, in which it's most likely going to be tied to a particular kernel anyway.32-bit linux applications need 32-bit glibc (or whatever libc/library they use) to run. Both the 32-bit and 64-bit versions can be installed on a 64-bit system just fine.
Most of the time you'd run without the 32 bit libraries since you use lots more space with them, and until you get in to specialized programs, most come with 64-bit versions. On an application that doesn't use rpm, or some other packaging to tell you what libraries you need, you can be left guessing on what you need to install, I will give you that.But thinking Windows is more friendly then Linux on 64-bit is insane. The whole capture the system call and write it to a different directory thing. Verses /lib and /lib64. OSX didn't didn't magically recompile/emulate 64bit code. They embedded both 32bit and 64bit code into a single binary and selected the right one based on the target architecture; it wasn't free.Feel free to continue pulling bullshit out of your ass.
A 64bit binary will operate on 32bit Snow Leopard on a 64bit machine. This was done to support early 64bit intel machines running Leopard/Snow Leopard because they booted by default into 32bit OS X to avoid issues with missing third party drivers. You could force it to reboot into 64bit mode but some drivers for third party hardware would not be available. Anything like a 'driver' had to be run in the appropriate kernel but applications compiled for 6.