Subject:
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Re: nop in NQC?
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Newsgroups:
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lugnet.robotics
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Date:
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Wed, 7 Jan 2004 13:54:19 GMT
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Viewed:
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963 times
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In lugnet.robotics, John Hansen wrote:
> In lugnet.robotics, Brian Davis wrote:
> > Is there a NQC command that will translate to a simple nop bytecode?
>
> Here's a program that tries to analyze the various NOP options:
<snipped>
> Based on this I would go with NOP3(). NOP2() is a decent second choice.
Or you can just forget all that. I ran the same test with the order changed and
the 3rd NOP of the 5 I tried was always the fastest (regardless of which one I
used). Modifying the program to try each of 5 different options in 10 different
orders yielded these results:
__nolist void NOP1() { Wait(0); }
__nolist void NOP2() { asm { 0x10 }; }
__nolist void NOP3() { asm { 0xe0 }; }
__nolist void NOP4() { Wait(-1); }
__nolist void NOP5() { asm { 0x27, 1 }; }
NOP1() NOP2() NOP3() NOP4() NOP5()
0.63 0.57 0.60 0.61 0.61
Perhaps these numbers really do reflect reality.
John Hansen
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Message is in Reply To:
 | | Re: nop in NQC?
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| (...) Here's a program that tries to analyze the various NOP options: #pragma reserve 0 __nolist void NOP1() { Wait(0); } __nolist void NOP2() { Wait(-1); } __nolist void NOP3() { asm { 0x27, 1 }; } __nolist void NOP4() { asm { 0x10 }; } __nolist (...) (21 years ago, 6-Jan-04, to lugnet.robotics)
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