Feb 12, 2012
04:34 AM
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Feb 12, 2012
04:34 AM
3 Replies
Not applicable
Feb 13, 2012
12:12 PM
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Feb 13, 2012
12:12 PM
Them being large 16bit or even 32bit architectures I haven't (where's the fun in that?). But it should be pretty straightforward, just check the manuals for the cycle times.
It's branching where stuff gets tricky. So after checking cycle times your real question is, do I need to branch a lot?
Branching largely depends on whether the branch prediction is well suited to your application, unless you have access to the spec (the Intel Pentium was a 4 state machine, with 3 states in favour of branching). Nowadays branch prediction is the big secret, the feature that makes all the difference. So unless the you're in on that the only way to find out is try. With your target application. I don't think there's a way around that if you want meaningful results.
It's branching where stuff gets tricky. So after checking cycle times your real question is, do I need to branch a lot?
Branching largely depends on whether the branch prediction is well suited to your application, unless you have access to the spec (the Intel Pentium was a 4 state machine, with 3 states in favour of branching). Nowadays branch prediction is the big secret, the feature that makes all the difference. So unless the you're in on that the only way to find out is try. With your target application. I don't think there's a way around that if you want meaningful results.
Feb 14, 2012
05:32 AM
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Feb 14, 2012
05:32 AM
Thanks but I think BP is not a secret any more now.
BTW, if you do the comparison test for those 2 MC types, you will be shocked. 🙂
BTW, if you do the comparison test for those 2 MC types, you will be shocked. 🙂
Not applicable
May 07, 2012
06:48 PM
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May 07, 2012
06:48 PM