摘要:
The present invention provides a system, apparatus, and method for detecting and resolving read-after-write hazards encountered in processors following the dispatch of instructions requiring one or more implicit reads in a processor.
摘要:
A new method and apparatus have been taught for storing error information used for debugging as generated by the initial and subsequent error occurrences. In this invention, a register with several bit ranges is used to store error information. The first bit-range is allocated to the initial error information. If the total number of the errors exceeds the capacity of the register, the last error is kept in a last bit-range. This way, precious initial error information (as well as the last error information) will be available for debugging.
摘要:
A new method and apparatus have been taught for storing error information used for debugging as generated by the initial and subsequent error occurrences. In this invention, a register with several bit ranges is used to store error information. The first bit-range is allocated to the initial error information. If the total number of the errors exceeds the capacity of the register, the last error is kept in a last bit-range. This way, precious initial error information (as well as the last error information) will be available for debugging.
摘要:
Embodiments relate to selectively blocking branch instruction predictions. An aspect includes a computer system for performing selective branch prediction. The system includes memory and a processor, and the system is configured to perform a method. The method includes detecting a branch-prediction blocking instruction in a stream of instructions and blocking branch prediction of a predetermined number of branch instructions following the branch-prediction blocking instruction based on the detecting the branch-prediction blocking instruction.
摘要:
Embodiments relate to using a branch target buffer preload table. An aspect includes receiving a search request to locate branch prediction information associated with a branch instruction. Searching is performed for an entry corresponding to the search request in a branch target buffer and a branch target buffer preload table in parallel. Based on locating a matching entry in the branch target buffer preload table corresponding to the search request and failing to locate the matching entry in the branch target buffer, a victim entry is selected to overwrite in the branch target buffer. Branch prediction information of the matching entry is received from the branch target buffer preload table at the branch target buffer. The victim entry in the branch target buffer is overwritten with the branch prediction information of the matching entry.
摘要:
Embodiments relate to instruction filtering. An aspect includes a system for instruction filtering. The system includes memory configured to store instructions accessible by a processor, and the processor includes a tracking array and a tracked instruction logic block. The processor is configured to perform a method including detecting a tracked instruction in an instruction stream, and storing an instruction address of the tracked instruction in the tracking array based on detecting and executing the tracked instruction. The method also includes accessing the tracking array based on an address of instruction data of a subsequently fetched instruction to locate the instruction address of the tracked instruction in the tracking array as an indication of the tracked instruction. Instruction text of the subsequently fetched instruction is marked to indicate previous execution based on the tracking array. An action of the tracked instruction logic block is prevented based on the marked instruction text.
摘要:
In a UV process tool for semiconductor processing, a temperature-dependent signal may be used as a monitor signal for determining the momentary irradiance of the UV radiation source. Consequently, a fast and reliable monitoring and/or controlling of the irradiance of UV process tools may be accomplished.
摘要:
A multiprocessor electronic circuit and an electronic data processing system comprising such circuit are disclosed for reducing the power consumption and the chip area consumption of a multiprocessor system having cryptographic functionality. In one embodiment, the multiprocessor electronic circuit comprises a plurality of processors, a single cryptographic processing unit that comprises a plurality of input/output buffer pairs and two cryptographic engines, a cipher engine and a hash engine, and associated control logic.
摘要:
A system and computer implemented method for storing of data in the memory of a computer system in order at a fast rate is provided. The method includes launching a first store to memory. A wait counter is initiated. A second store to memory is speculatively launched when the wait counter expires. The second store to memory is cancelled when the second store achieves coherency prior to the first store to memory.
摘要:
In a UV process tool for semiconductor processing, a temperature-dependent signal may be used as a monitor signal for determining the momentary irradiance of the UV radiation source. Consequently, a fast and reliable monitoring and/or controlling of the irradiance of UV process tools may be accomplished.