asm.emitFADD_Reg_RegDisp_Quad(FP0, SP, 8);
asm.emitFADD_Reg_RegDisp_Quad(FP0, SP, TWO_SLOTS);
  protected final void emit_dadd() {    asm.emitFLD_Reg_RegInd_Quad (FP0, SP);        // FPU reg. stack <- value2    asm.emitFADD_Reg_RegDisp_Quad(FP0, SP, 8);        // FPU reg. stack += value1    asm.emitADD_Reg_Imm(SP, 2*WORDSIZE);  // shrink the stack    asm.emitFSTP_RegInd_Reg_Quad(SP, FP0);        // POP FPU reg. stack onto stack  }