发明名称 |
Method for fast validation checking for code and data segment descriptor loads |
摘要 |
A method for improving the load time of code and data descriptors is provided. The invention utilizes hardware validation logic for code and data descriptors, but uses a software program to validate system descriptors. In those instances where the descriptor being loaded is a code or data descriptor, system validation checks are not performed. This allows code and data descriptors to be validated and stored into a segment register much faster than if system validation checks were also performed. If the descriptor is found invalid by the hardware validation logic, a branch is made to a software program which is used to determine whether the descriptor is invalid, or is actually a system descriptor. If it is a system descriptor, then system descriptor validation checks are performed by a software program.
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申请公布号 |
US5822607(A) |
申请公布日期 |
1998.10.13 |
申请号 |
US19970871039 |
申请日期 |
1997.06.09 |
申请人 |
INTEGRATED DEVICE TECHNOLOGY, INC. |
发明人 |
HENRY, G. GLENN;PARKS, TERRY |
分类号 |
G06F9/34;G06F9/38;G06F12/10;(IPC1-7):G06F9/00 |
主分类号 |
G06F9/34 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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