守株待兔的图片:翻译高手进来，帮帮小弟！谢谢了

As a simple system of commands, making the process very simple virtual machine implementation, thus help to improve the implementation efficiency. Instruction in the number and size of the operation a few operating at the decision. If more than a few megabytes big operation, it is high byte storage order of priority. Each Java method uses a fixed size local variables sets. Vars register with them in accordance with the words changed to the volume Xinzhi. Local variables are 32. Long integer and double-precision Fudianshuo occupy the space of two local variables, but the first local variables according to the index Xinzhi. (For example, an index of n local variables, if it is a double-precision Fudianshuo, it actually occupied index n and n+1 represent storage space. ) virtual machine standard does not require the 64 spaces in local variables is the value of the 64 spaces out. Virtual machine provided to the value of local variables to operate a few stores carrying the instructions provided to operate several stores in the value of local variables instructions. Pointing to the current operating environment, including the interpretation of and the current methods by symbols table guide, methods used to support the dynamic link code. Methods used to transfer class document code in the methods and the use of symbols to be visited variables. Dynamic links to the symbols forms translated into practical ways to use available methods, loading necessary to explain the type has not been defined symbols, and the variables with these visits translated into operational variables, memory structure corresponding low addresses. Dynamic links methods and the use of other methods of variables make such changes would not affect the procedure code. If normal end of the current methods in the implementation of a directive, with the right type of return, the method will be required to return a value. Implementation of environmental circumstances in the normal return for the resumption of the execution resources, and to increase the use of the procedures laid an appropriate value to the over-riding approach has been applied transfer instructions, and then use the implementation environment continuation. Match with the catch phrase should be very compatible with the following conditions : create unusual instructions in the scope of its instructions, the unusual occurrence of its type to handle unusual types son type. If found matching the catch phrase, then transferred to the system to deal with unusual pieces designated Office; If not unusual to find pieces address, the catch phrase repeated find matching process until all the current methods of the nests were checked catch phrase Each type of raw data have specialized instructions for them to the operation. Each operation in a few stores in need of a storage location, in addition to long and double type, and they need two locations. Several types of operation can only be applicable to their operation at the operation. For example, two 103-116 pressurised into several types, as if they were a few long type is illegal. Sun achieved in the virtual machine, the limitation imposed by the byte code verification devices. However, a small number of operations (operating sites dupe and transaction) for the areas of operation, the data is not considered the type of operation.

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