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VFETCH instruction documentation

Question asked by cadorino on Jul 4, 2012
Latest reply on Jul 5, 2012 by cadorino

Hi,

I'm studying the AMD ISA to develop a performance estimator. Using kernel analyzer I got the disassembly of a simple kernel, which contains the following instruction

 

VFETCH R1.xy__, R0.z, fc174  FORMAT(32_32_FLOAT) MEGA(8)

         FETCH_TYPE(NO_INDEX_OFFSET)

 

In both Evergreen ISA and microcode and R700 ISA references I'm not able to find the specification of the VFETCH instruction.
Can you help me?

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