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about conditional execution

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matthew_wang

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Hi, all


about the conditional execution, I am do a research about this topic, but it seems that this way can only separate the "if..else.." to sequencial program, and maybe this can't save much time.

And what architectecture is for "conditional execution"

Or you can recommend some materials about architecture design for "conditional execution"

THanks
 

Dear all:

Have someone done the ARM asm coding?
I want to know in what case, this conditional executive will be used?
How many cycles will be save when you use conditional executive instruction?

And it seems a little confuse that the flag will be changed every cycle, if the conditional executive instruction is also a data processing instruction, it will also change the flag status, how the next "else" section coding.

Or only the branch without the "else" section is suitable for the conditional executive?

Thanks

Waiting for your reply
 

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