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To: FruJu who wrote (25246)6/25/1999 11:03:00 AM
From: Matt Peterson  Read Replies (1) of 213176
 
Matt, emulating the 68K floating point via the PowerPC is probably worst cast for the G3, since all
68K floating point is 80 bit precision, whereas double precision PowerPC is 64 bit, and single
precision is 32 bit.
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I didn't think of that. Quite frankly, I was shocked at how slower the G3 was--I thought that the cache might make up for the fpu. I figure that the monumental slowdown is due to SoftFPU competing for registers while the G3's fpu is making it's second pass to calculate a 64-bit double. On the other hand, I could be horribly wrong.
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