Message
Re: [Logic_Cafe] Re: Re: Re: New PowerMacs run Tiger only?
2005-05-02 by GAmoore@aol.com
In a message dated 5/2/05 2:37:06 AM, kamm@... writes:
Tiger is only 64 bit in a small way. It is
not a true 64 bit OS. The GUI is still 32 bit. What Apple has done is to
give access to more memory to certain types of applications and access to 64
bit math routines too. It isn't at all clear to me that Logic will be able
to make use of that because it is a GUI app. Does anyone on the list have a
clear understanding of what can and can't be done in the 64 bit world using
Tiger. It sounds to me like only command line apps will be able to use 64
bit memory access.
I imagine that there are various system calls that can be made, and some are 64b and some 32b. For graphics, the mac used to have a "toolbox" of system calls that you would use when you program. For example, if you want to draw a window of a certain size and dimensions, you make a call. Then the OS does that for you. In the same way, there can be math operations called from programming languages, which may or may not be 32 bit or 64 bit. The key thing will be the math processing (in Photoshop and Logic) that will help speed things up. So any app can use both types of data processing at the same time.
In the case of Logic, I guess that audio processing and plugs and VI's would be enhanced by 64bit -although I am a litttle unclear if it only applies to integer operations (vectors) or floating point which is not referred to in bit size.
See how Apple hypes each minor thing, I am surprised they have not hyped Logic as the "first 64 bit music app". That absence seems to indicate that it will come along later...maybe LP7.5 for $99 upgrade or something.