摘要:
A method for managing operability of an on-chip debug capability (24) in a product (26) configured to execute software (30) includes storing (74, 76) a debug public key (40) and an operational public key (44) in product memory (54). The software (30) with either a debug signature (82) or an operational signature (88) is saved (84) in the memory (56). When enablement indication is received, the debug signature (82) is validated (102) using the debug public key (40). The debug capability (24) is enabled upon validation of the signature (82) and the software (30) is allowed to execute. When disablement indication is received, the operational signature (88) is verified (112) using the operational public key (44). The on-chip debug capability (24) is disabled upon verification of the signature (88) and the software (30) is allowed to execute.
摘要:
A method for managing operability of an on-chip debug capability (24) in a product (26) configured to execute software (30) includes storing (74, 76) a debug public key (40) and an operational public key (44) in product memory (54). The software (30) with either a debug signature (82) or an operational signature (88) is saved (84) in the memory (56). When enablement indication is received, the debug signature (82) is validated (102) using the debug public key (40). The debug capability (24) is enabled upon validation of the signature (82) and the software (30) is allowed to execute. When disablement indication is received, the operational signature (88) is verified (112) using the operational public key (44). The on-chip debug capability (24) is disabled upon verification of the signature (88) and the software (30) is allowed to execute.
摘要:
The disclosure features methods and compositions for determining whether a male subject has, or is at an increased risk of developing, an aggressive form of prostate cancer. The disclosure also features methods for adjusting a treatment regimen (e.g., discontinuing a therapy comprising an antioxidant) or administering a therapy that does not contain an antioxidant for a male subject in view of one or both of an MnSOD2 genotype status and an elevated level of an antioxidant in a biological sample obtained from the male subject. Also featured are methods for reducing superoxide levels in a subject based on one or both of an MnSOD2 genotype status and an elevated level of an antioxidant in a biological sample obtained from the male subject.
摘要:
A processing system includes a control flow monitor (CFM) checker for verifying a sequence of instructions performed by a pipelined processor (101). The CFM checker provides fail safe assurance against run-time errors in the sequence of instructions performed by a processor. The CFM checker verifies instruction sequence during run-time within 32 instruction cycles. The processing system provides an improved system and method having a CFM checker which minimizes wasted instruction cycles when performing branch instructions in a software program. Using a prefetch capability of an instruction pipeline and storing fixwords sequentially in memory, eliminates unnecessary instructions to fetch fixword values from external tables, thereby saving instructions and instruction cycles.