Author: Franz Hagra
Date: 01:48:35 06/22/04
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109 Certain Reverse REP MOVS May Produce Unpredictable Behavior Description In certain situations a REP MOVS instruction may lead to incorrect results. An incorrect address size, data size or source operand segment may be used or a succeeding instruction may be skipped. This may occur under the following conditions: EFLAGS.DF=1 (the string is being moved in the reverse direction). The number of items being moved (RCX) is between 1 and 20. The REP MOVS instruction is preceded by some microcoded instruction that has not completely retired by the time the REP MOVS begins execution. The set of such instructions includes BOUND, CLI, LDS, LES, LFS, LGS, LSS, IDIV, and most microcoded x87 instructions. Potential Effect on System Incorrect results may be produced or the system may hang. Suggested Workaround Contact your AMD representative for information on a BIOS update. Fix Planned Yes 111 Rtt Specification Violation Description The Rtt specification for the HyperTransportTM pins may be violated on some processor revisions. Potential Effect on System Potential violations of the VID (input differential voltage) and Tr/Tf (slew rate) HyperTransport specifications. There are no known failures related to this problem. Suggested Workaround None required. Fix Planned Yes http://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/25759.pdf
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