Abstract: A method and system for executing a non-native stack-based instruction within a computer system is disclosed. In accordance with the method and system of the present invention, a computer system capable of executing a set of non-native stack-access instructions is provided which includes a system memory, an instruction set convertor, and a processor. The system memory is utilized to store the non-native stack-access instructions, and part of the system memory is utilized as a stack. The instruction set convertor is utilized to convert the non-native stack-access instructions to a set of native instructions. When encountering a block of non-native stack-access instructions which include paired push and pop stack operations, the instruction set convertor produces a set of native instructions that ignores paired push and pop stack operations and retains all relevant number values in general purpose registers.

Abstract: A method for executing a non-native mode-sensitive instruction within a computer system is disclosed. In accordance with the method and system of the present invention, a computer system as described, capable of executing a non-native mode-sensitive instruction, includes a system memory, an instruction set convertor, and a processor. The system memory is utilized to store the non-native mode-sensitive instruction. The instruction set convertor, having a Semantics Table, is utilized for converting the non-native mode-sensitive instruction to a group of native instructions by preemptively testing whether or not the mode-sensitive instruction is preceded by a mode-altering instruction within a single block, and for accessing the Semantics Table for the non-native instruction with an address according to the preemptive testing. The processor is then utilized to process the group of native instructions from the instruction set convertor.

Abstract: A method and system for translating a non-native bytecode to a set of codes native to a processor within a computer system is disclosed. In accordance with the method and system of the present invention, a computer system capable of translating non-native instructions to a set of native instructions is provided that comprises a system memory, a processor, and an instruction set convertor. The system memory is utilized to store non-native instructions and groups of unrelated native instructions. The processor is only capable of processing native instructions. The instruction set convertor, coupled between the system memory and the processor, includes a semantics table and an information table. In response to an instruction fetch from the processor for a non-native instruction in the system memory, the instruction set convertor translates the non-native instruction to a set of native instructions for the processor by accessing both the semantics table and the information table.