摘要:
An invalid memory access detection program early detects invalid memory access caused by a program operating in a system in which memory access can be freely performed, said program being called from a program operating in a system in which invalid memory access does not occur. An execution program of the Java VM executes a Java byte code that has been read. A native method library execution module calls a native method library, and executes it. During or after the execution of the native method library, an invalid memory access detection module checks a memory area reserved by the memory reservation module, and thereby detects invalid memory access caused by the native method library.
摘要:
Various intermediate representation techniques for software development tool scenarios are described. An intermediate representation format can be used for both high level and low level representations. The intermediate representation can be built from various operands and instructions types. Various annotations can be added to the intermediate representation without modifying its format. For example, flow control and data control can be explicitly represented by threading a graph through the intermediate representation.
摘要:
A representation of types, type-checker, and compiler are provided for checking consistency in various forms of an intermediate language. Type-checking a programming language in a compiler is accomplished by taking one or more rule sets as input to a type-checker, which selects one or more of the rule sets based upon any one, or combination of two or more, of numerous criteria. Among them are stage of compilation, source language, architecture, and level of typing present in the language being type-checked. The language is then type-checked using the selected one or more rule sets. The rule sets can include one rule set corresponding to strong type-checking, one rule set corresponding to weak type-checking, and one rule set corresponding to representation type-checking. In the alternative, a compiler can be provided with a type-checker that constructs the one or more sets of rules at runtime from a larger set of rules based on any one, or combination of two or more, of the previously mentioned criteria.
摘要:
According to program converting step S100 of the present invention, classes whose objects are created out of the classes included in a program are detected and the result is recorded in an analysis information storing section 12 at an object analyzing step S104, functions (unnecessary functions) regarding classes whose objects are not created are analyzed in accordance with information held in the analysis information storing section 12 and the result is recorded in the analysis information storing section 12 at an unnecessary function analyzing step S105, and definitions of the unnecessary functions are deleted in accordance with information held in the analysis information storing section 12 at an unnecessary function deleting step S106.
摘要:
A method for generating a plurality of timing constraints for a circuit design is disclosed. The method generally includes the steps of (A) identifying a plurality of clock signals by analyzing the circuit design, (B) determining a plurality of relationships among the clock signals and (C) generating the timing constraints for the circuit design in response to the clock signals and the relationships.
摘要:
A method and system for simulating an integrated circuit. The method includes the steps of performing a timing analysis of the circuits to ensure that they meet specified timing criteria, performing soft error analysis of the circuits to determine whether they meet specified soft error criteria, and improving those circuits that fail the soft error analysis to improve their resistance to soft errors and having no degradation on timing. Preferably, the improving step includes the step of improving those circuits that fail the soft error analysis by either having an additional voltage source or altering the capacitance of the circuits.
摘要:
System and method for dynamic loading of remote classes. Using embodiments, remote classes may be loaded dynamically by a default class loader without the use of separate, custom class loaders. The remote class loader mechanism may locate on remote systems classes needed by code executing on the local system but not locally stored, and which therefore cannot be located and loaded by the default class loader. After locating the classes, the remote class loader mechanism may obtain copies of the classes and save them to a location indicated by the class path of the default class loader. The default class loader can then locate and load the classes from the location indicated by the class path.
摘要:
A method and mechanism for implementing a general purpose scripting language that supports parallel execution is described. In one approach, parallel execution is provided in a seamless and high-level approach rather than requiring or expecting a user to have low-level programming expertise with parallel processing languages/functions. Also described is a system and method for performing circuit simulation. The present approach provides methods and systems that create reusable and independent measurements for use with circuit simulators. Also disclosed are parallelizable measurements having looping constructs that can be run without interference between parallel iterations. Reusability is enhanced by having parameterized measurements. Revisions and history of the operating parameters of circuit designs subject to simulation are tracked.
摘要:
A method and apparatus are provided for predictively processing tasks for building software. The method comprises initiating compilation of a file in a processor-based system in advance of a request from a user to compile the file, detecting the user request to compile the file and indicating a status of the compilation of the file in response to detecting the user request.
摘要:
A method, apparatus, system, and signal-bearing medium that in an embodiment select a subset of transmission line models based on bounding electrical criteria. The bounding electrical criteria may include combinations of maximum and minimum values and in an embodiment may also include nominal values. Models that meet the bounding electrical criteria may be used in modeling the transmission line while models that do not meet the bounding electrical criteria are not used.