摘要:
The present invention reveals a method for manufacturing identification codes of integrated circuit. A number of the test machine, a serial number and a period of time ahead of loading a test pattern are written into an integrated circuit in the process of testing as the identification code. Thus, the identification codes of each integrated circuit of normal lot, re-testing lot and quality control lot is distinct to avoid the problems caused by repetitive identification codes.
摘要:
There is provided a microcomputer including: an external apparatus discrimination means for discriminating that an external apparatus is connected to said microcomputer via an IC card interface section, based on a discrimination signal to be transmitted by said external apparatus, when the external apparatus is placed in a communicatable status which allows communication by feeding a power supply, a clock signal and initializing an operation; and memory contents change means for receiving data including a CPU program, from the external apparatus and executing changing of the contents of a memory, thereby allowing modification of a CPU program stored in the microcomputer during manufacture.
摘要:
An apparatus and a method manage data stored on one or more data storage devices using an adaptive file system by characterizing the data on the data storage devices managed by the file system; and tuning the file system by selecting one or more options to configure a kernel during boot-up and an operating system during mount time.
摘要:
A method of changing the operating system in a computer system by using an address offset mode (AOM) feature for the address space of a hard disk drive connected to the computer system. Initialization of the computer loads the first operating system (OS) from a user area in the disk drive address space. An enable AOM command offsets the disk drive address space and reinitializes the computer to load a second OS from a reserve space in the disk drive address space. A command setting the maximum size of the address space of the hard disk drive provides a wrap around feature allowing the entire address space of the disk drive to be addressable for diagnostics or updating purposes. The computer is returned to operation with the first OS by a disable AOM command, or alternatively, by a power on reset, a software reset or a hardware reset. The method of changing operating systems is coded in the hard disk drive and does not require additions or modifications to the memory or the BIOS ROM of the computer system.
摘要:
A method and system for providing basic command functionality and expanded command functionality between a plurality of devices in a network. When a first device is coupled to a home audio video network which includes a second device, a generic control module for the first device is generated by the second device. The generic control module is a basic abstraction of the capabilities of the first device. The generic control module enables the first device to respond to a basic set of commands from the second device. The second device then uses the generic control module to obtain descriptive information from the first device. The descriptive information describes the capabilities of the first device. The second device then generates a parameterized control module for the first device by modifying the generic control module based upon the descriptive information. The second device is then able to access the first device via the parameterized control module. The parameterized control module enables the first device to respond to an expanded set of commands from the second device.
摘要:
A computer system for estimating resource usage of components in a particular system configuration is disclosed. The computer system includes a processor and a computer readable medium. System requirements, each of which describes an amount of an associated resource required by a particular system configuration, are stored within the computer readable medium. The processor receives component and configuration selections, retrieves an appropriate system requirement from the computer readable medium, and outputs that system requirement.
摘要:
The present invention utilizes a “virtual” condition code (VCC) which can control the instruction sequence in a microprocessor. The virtual condition code is stored in an internal, non-architected register that is not visible to the programmer, but is used by various microprocessor instructions to determine when a branch is to be taken. For example, the virtual condition code can be used as a condition for branching out of a series of repetitive instructions. The virtual condition code (VCC) can eliminate a portion of the processing overhead used when determining whether a sequential number, such as a count value in a register associated with a repetitive instruction, e.g. a LOOP, is zero. In accordance with one aspect of the present invention, a LOOP instruction will decrement a count value in a register (to maintain compatibility with the ISA). However, a corresponding branch instruction will use the virtual condition code, rather than checking the contents of the entire register, to determine whether or not to branch. In this manner, the present invention improves performance by minimizing the amount of hardware resources (i.e. compare logic) utilized while maintaining compatibility with the Intel architecture since the programmer visible condition code is not used. By leaving the programmer visible condition codes unchanged, the software is not forced to save and restore the register contents during each iteration.
摘要:
In an information processing apparatus and method, an application program that was encrypted using secret key-A is supplied to a decoding section 82, and publicized key-B and an encrypted publicized key-A (corresponding to secret key-A) that was encrypted by using secret key-B corresponding to publicized key-B are supplied to a decoding section 84. The decoding section 84 decodes the encrypted publicized key-A by using publicized key-B and supplies a resulting publicized key-A to the decoding section 82. The decoding section 82 decodes the encrypted application program by using publicized key that is supplied from the decoding section 84 and supplies Java byte codes as a decoding result to a Java virtual machine 83. The Java virtual machine 83 interprets and executes the Java byte codes that are supplied from the decoding section 82. As a result, it becomes possible to allow only programs developed by a legitimate software developer to be executed in certain program execution environments.
摘要:
Dynamic translation of indirect branch instructions of a target application by a host processor is enhanced by including a cache to provide access to the addresses of the most frequently used translations of a host computer, minimizing the need to access the translation buffer. Each entry in the cache includes a host instruction address, a logical address of the instruction of the target application, the physical address of that instruction, the code segment limit to the instruction, and the context value of the host processor associated with that instruction, the last four named components constituting tags to the host instruction address, and a valid-invalid bit. In a basic embodiment, the cache is a software cache apportioned by software from the main processor memory chips.
摘要:
A program module management system and a method thereof, and a storing medium of management programs of the system, in which plural program modules are loaded into arbitrary addresses in the RAM efficiently without loading the same program module into the RAM and the plural program modules can be executed on the RAM by a CPU, are provided. The program module management system provides a CPU for executing programs and operation processes, a ROM for storing program modules, a loading RAM which program modules are loaded into, and a RAM in which variables and stacks being necessary for executing the programs are stored. And the ROM provides a list table in which each start address of the program modules that are loaded into the loading RAM and each size of the program modules corresponding to the start address on the ROM are stored. And the loading RAM provides module management information in which each start address of the program modules storing in the loading RAM and each relative address of the program modules corresponding to the start address on the loading RAM are stored, in this, the relative address signifies the absolute value of the difference between each start address on the ROM and each start address on the loading RAM of each of the program modules=offset. And the program modules in the loading RAM are managed by management programs in the ROM.