A missing PPC405 instruction

Jul 30, 2008 3 Replies
A

Hi All,



I was unable find a description of a PPC405 instruction "blrl". It looks like a branch, but I never found it in the manuals like UG11. The instruction use can be found in e.g. edk_root/sw/lib/bsp/xilkernel_v4_00_a/src/syscall/arch/ppc405/ mksyscall.S



Thanks, Andrew



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N

Google says: branch to the contents of the link register.

Scott

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A

Thanks Scott.

I have to apologize here, after doing a search of the pdf (that same UG11) I found the acronym. It is in fact a simplified form of bclrl, and means Branch to Link Register and Link. I actually knew that there are simplified mnemonics are utilized along with complete ones in the PPC, but apparently my experience is short so far. The problem's solved.

Thanks again, Andrew

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F

As does the Xilinx PowerPC processor reference guide.

-- Regards, Richard.

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