head 1.1; branch 1.1.1; access ; symbols noReleaseTag: noVendorName:1.1.1; locks ; strict; comment @# @; 1.1 date 2003.; author doru; state Exp; branches; next ; date 2003.; author doru; state Exp; branches ; next ; desc @@ 1.1 log @Initial revision @ text @ Returns
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[Pipeline details]

A few details
There are two kinds of returns:
Returns are the slowest instructions in the pAVR implementation of the AVR instruction set. They take 9 clocks.
First 2 clocks are spent while waiting the previous instructions to write the Unified Memory. Next 5 clocks, the Program Counter is read from the Unified Memory. In a future version, this part might take only 4 clocks. Finally, another 2 clocks are spent while bringing the target instruction into the instruction register.


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