I garbled that a bit. Comes from late night posts...
ONLY the Cray had more than a 64 bit hardware FPU last time I looked.
The PeeCees are getting the new HP/Intel chips, the Mac obviously uses
the 64bit PowerPC core in their computers.
Sheesh. It must have been the rush to go watch Kim Possible on the boob
tube that turned that post into a boob.
Anyway, if anyone has any suggestions for a decent mechanical CAD package
for the Mac I'd appreciate it. Hopefully this won't turn into the usual
religious Mac vs. PeeCee war...
: John Nagle wrote:
: At last count I found over a dozen, while that might not be much, it
: certainly isn't the dead zone. Also, IEEE 754 details double precision
: FP as 64 bits. Internal representations can be any size of course if
: you are interested in higher accuracy, but you suffer speed trade offs,
: and those bit lengths are software, on the CRAY (last time I looked) had
: larger than 64 bit FPU units (they are 128.) Most of the mechanical
: CAD vendors don't even put their stuff on a PeeCee, they are UNIX based
: where the real number crunchers are. Although the newer Macs and PeeCees
: are coming out with the RISC HP/Intel collaboration chips which should
: change their minds in the next few years. I know that .Net on a PeeCee
: carries it to 102 bits and I've read that the PowerPC in the Mac to
: 151 bits. But I can't confirm either.
: However, I doubt that the Mac was dropped due to inferior FP capabilities,
: I know IBM, they just wouldn't do that.
: : There's not much.
: : When Apple went to PowerPC, they also went from an 80-bit
: : FPU to a 64-bit FPU. This made mechanical CAD packages
: : get different answers on the Mac. So most of the mechanical
: : CAD vendors dumped the Mac at that point.
: : John Nagle
: : Dennis Clark wrote:
: : > Does anyone know of any decent mechanical CAD packages for the Mac?
: : > I do all my design work there and have schematic capture and PCB layout
: : > packages, iditors, web, etc. on my Mac and would like to get a CAD
: : > package that runs there as well. Are there any suggestions?
: : >
: : > thanks,
: : > DLC
: * Dennis Clark firstname.lastname@example.org
: * "Programming and Customizing the OOPic Microcontroller" Mcgraw-Hill 2003 *