发明名称 |
BRANCH PREDICTION WITH RETURN SELECTION BITS TO CATEGORIZE TYPE OF BRANCH PREDICTION |
摘要 |
A branch prediction unit stores as set of branch selectors corresponding to each of a group of contiguous instruction bytes stored in an instruction cache. Each branch selector identifies a branch prediction to be selected if a fetch address corresponding to that branch selector is presented. The branch prediction unit additionally stores a set of return selectors corresponding to one or more branch predictions. The return selectors identify the type of branch selection. For example, the branch predictions may include a sequential branch prediction and a branch instruction branch prediction. The return selectors may identify whether the branch instruction branch prediction is associated with the return instruction or a non-return branch instruction. |
申请公布号 |
EP1049970(B1) |
申请公布日期 |
2010.03.10 |
申请号 |
EP19980930107 |
申请日期 |
1998.06.10 |
申请人 |
ADVANCED MICRO DEVICES, INC. |
发明人 |
MUTHUSAMY, KARTHIKEYAN |
分类号 |
G06F9/38 |
主分类号 |
G06F9/38 |
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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