4 Replies Latest reply on Jul 5, 2012 10:17 AM by cadorino

    VFETCH instruction documentation

    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?