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      1     /*
      2      * Check to see if a cast from one class to another is allowed.
      3      */
      4     /* check-cast vAA, class//BBBB */
      5     EXPORT_PC
      6     FETCH    w0, 1                      // w0<- BBBB
      7     lsr      w1, wINST, #8              // w1<- AA
      8     VREG_INDEX_TO_ADDR x1, w1           // w1<- &object
      9     ldr      x2, [xFP, #OFF_FP_METHOD]  // w2<- method
     10     mov      x3, xSELF                  // w3<- self
     11     bl       MterpCheckCast             // (index, &obj, method, self)
     12     PREFETCH_INST 2
     13     cbnz     w0, MterpPossibleException
     14     ADVANCE  2
     15     GET_INST_OPCODE ip                  // extract opcode from rINST
     16     GOTO_OPCODE ip                      // jump to next instruction
     17