Re: Branch prediction hints in an ISA

peter_flass@my-deja.com
12 Oct 2000 21:59:31 -0400

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Branch prediction hints in an ISA timgleason@my-deja.com (2000-10-10)
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Re: Branch prediction hints in an ISA peter_flass@my-deja.com (2000-10-12)
Re: Branch prediction hints in an ISA djimenez@cs.utexas.edu (2000-10-12)
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Re: Branch prediction hints in an ISA david.thompson1@worldnet.att.net (David Thompson) (2000-10-18)
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From: peter_flass@my-deja.com
Newsgroups: comp.compilers
Date: 12 Oct 2000 21:59:31 -0400
Organization: Deja.com - Before you buy.
References: 00-10-078
Keywords: architecture

Power-PC. By default forward conditional branches are assumed not
taken, and backwards assumed taken. The programmer can override this.
      beq cr0,*-10 # predicted taken by default
      beg+ cr0,*-10 # predicted not taken


    timgleason@my-deja.com wrote:
> Hey I was just thinking. Does anyone know of any Instruction Sets
> that have an extra bit in the branch instruction to be used as a
> "hint" for the branch prediction logic?

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