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#1
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Number of floating-point registers?
How many floating-point registers are available for use by programs in
any of Intel Celeron D Processors 340, 335, 330, 325, and 320? |
#2
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On Thu, 08 Sep 2005 11:39:01 -0700, BigMan wrote:
How many floating-point registers are available for use by programs in any of Intel Celeron D Processors 340, 335, 330, 325, and 320? Only 8, architecturally. Not an actual limit as the FP (and integer) registers are renamed to a much wider register file (say 32 FP regs but the amount is implementation-specific). |
#3
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#4
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Well, in fact I'm trying to understand the following:
1. What is the maximum number of 8-byte FP values that I can load into registers before I start computations on these values. In one case the computations are performed on 9 values, and in the other - on 18. 2. Is it possible to perform computations on values already loaded into registers while other values are being loaded into other registers? |
#5
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One more thing - I guess the Celerons in question are not able to
operate in 64-bit mode. |
#6
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#7
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#8
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I see that the information that I'm seeking is too much to be posted in
a newsgroup, so could you please, recommend some reading (whitepapers, articles, or even books) about FP arithmetic on Intel, AMD and Apple processors? |
#9
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