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      1     /*
      2      * Generic 32-bit unary operation.  Provide an "instr" line that
      3      * specifies an instruction that performs "result = op a0".
      4      * This could be a MIPS instruction or a function call.
      5      *
      6      * for: int-to-float, float-to-int
      7      */
      8     /* unop vA, vB */
      9     GET_OPB(a3)                            #  a3 <- B
     10     GET_OPA4(rOBJ)                         #  t0 <- A+
     11     GET_VREG_F(fa0, a3)
     12     FETCH_ADVANCE_INST(1)                  #  advance rPC, load rINST
     13     $instr
     14 
     15 .L${opcode}_set_vreg_f:
     16     SET_VREG_F(fv0, rOBJ)
     17     GET_INST_OPCODE(t1)                    #  extract opcode from rINST
     18     GOTO_OPCODE(t1)                        #  jump to next instruction
     19