MAC OS X Tiger 32bit or 64bit

[Croatian]

Is Tiger 32bit or 64bit, how do u tell if u have are C2D chip in your Mac, witch verion did apple install on the computer?

 

[clevin]

tiger is 32 bit, there is no 64bit version of tiger
Leopard will be both 32 and 64bit, which I dont know exactly waht that means.

 

[macintouch]

tiger is 32 bit, there is no 64bit version of tiger
Leopard will be both 32 and 64bit, which I dont know exactly waht that means.

It basically means that computers that are 64 bit such as the Mac Pro, and Core 2 Duo (I think they're 64 bit) will begin to be able to take advantage of the 64 bit feature that's basically just sitting there right now.

 

[Transeau]

Um yeah..

Tiger supports 64-Bit.

Look at your system log.

Nov 26 12:53:15 localhost kernel[0]: hi mem tramps at 0xffe00000
Nov 26 12:53:15 localhost kernel[0]: PAE enabled
Nov 26 12:53:15 localhost kernel[0]: 64 bit mode enabled
Nov 26 12:53:15 localhost kernel[0]: standard timeslicing quantum is 10000 us
Nov 26 12:53:15 localhost kernel[0]: vm_page_bootstrap: 1490173 free pages
Nov 26 12:53:15 localhost kernel[0]: mig_table_max_displ = 71
Nov 26 12:53:15 localhost kernel[0]: Enabling XMM register save/restore and SSE/SSE2 opcodes

The 3rd line says it all. 64-Bit mode allows the system to use full 64-Bit memory addressing, as well as use the CPU's 64-Bit registers. Tiger supports 64-Bit processors, and the underlying OS is 64-Bit capable. The GUI is not currently 64-Bit. There is a lot more to it than just this, but the short answer is yes.

I know there are going to be a bunch of responses to this telling me that I don't know what I'm talking about... So here is a link to Apple's 10.4 64-Bit Development info.
http://developer.apple.com/documentation/Darwin/Conceptual/64bitPorting/index.html

 

[Transeau]

From Intel:

Intel® 64 architecture (formerly known as Intel® Extended Memory 64
Technology, or Intel® EM64T) enables 64-bit computing on server, workstation,
desktop and mobile platforms when combined with supporting software.¹ Intel 64
architecture improves performance by allowing systems to address more than
4 gigabytes (GB) of both virtual and physical memory. Today, all Intel processors
for server and workstation platforms support 64-bit computing. And with the
introduction of Intel® Core™2 Duo processors in the second half of 2006, most
Intel desktop and mobile processors are also 64-bit capable.

Intel 64 provides support for:
    * 64-bit flat virtual address space
    * 64-bit pointers
    * 64-bit wide general purpose registers
    * 64-bit integer support
    * Up to one terabyte (TB) of platform address space

 

[clevin]

Um yeah..

Tiger supports 64-Bit.


The 3rd line says it all. 64-Bit mode allows the system to use full 64-Bit memory addressing, as well as use the CPU's 64-Bit registers. Tiger supports 64-Bit processors, and the underlying OS is 64-Bit capable. The GUI is not currently 64-Bit. There is a lot more to it than just this, but the short answer is yes.

I know there are going to be a bunch of responses to this telling me that I don't know what I'm talking about... So here is a link to Apple's 10.4 64-Bit Development info.
http://developer.apple.com/documentation/Darwin/Conceptual/64bitPorting/index.html

oh, that doc looks creepy

For most developers, 64-bit functionality in Mac OS X version 10.4 will have no impact on them. Most device drivers do not need to change (see “Device Driver Issues” for more information), and applications do not have to move to a 64-bit executable format. Most 32-bit applications will be better served by remaining 32-bit.

For the purposes of this document, 64-bit computing is defined as support for a 64-bit address space—that is, support for concurrent use of more than 4 GB of memory by a single executable program—no more, no less.

lol

 

[Transeau]

I'm not sure of the point of your response.

The OP asked if Tiger was 64-Bit. The answer is yes, Tiger is 64-Bit when run on a G5, Intel Core 2 Duo or Intel Xeon processor.

 

[macman2790]

i never thought it was fully 64-bit with the exception of the gui, but i believe you guys are right.