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Tagged with floating-point cpu
3 questions
40
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Why does Intel's Haswell chip allow floating point multiplication to be twice as fast as addition?
I was reading this very interesting question on Stack Overflow:
Is integer multiplication really done at the same speed as addition on a modern CPU?
One of the comments said:
"It's worth nothing ...
- 557
1
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1
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Is qNaN easier than trapping on overflow?
According to James Demmel's article, "Faster Numerical Algorithms via Exception Handling", IEEE Trans. on Computers 43 (1994), 983-992, the way a floating-point processor handles overflow can be ...
- 563
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Are there now 64-bit processors that deal with denorms routinely with no exception or interrupt? [closed]
Title says it all.
Are there processors with FPUs that deal with denorms arithmetically correctly (don't assume they're zero nor flush them to zero) and don't cause an exception? I would be interested ...
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