发明名称 |
Method and apparatus for communicating between processing entities in a multi-processor |
摘要 |
A method and apparatus for synchronizing and communicating between processing entities, such as cores or threads, in a multiprocessor. Two registers are used as a "hardware mailbox" by two processing entities of a microprocessor. A first register is used to communicate information from a first processing entity to a second processing entity, while a second register is used to communication information from the second processing entity to the first processing entity. The first and second registers are cross-decoded by the two processing entities. One or more bits in each register are used to synchronize operation of the processing entities. In a microprocessor including three or more such processing entities, a read-write register of each processing entity holds outgoing information and a read-only register of each processing entity holds incoming information. A separate logic circuit logically combines the contents of the read-write registers and stores the result in the read-only registers.
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申请公布号 |
US2003084269(A1) |
申请公布日期 |
2003.05.01 |
申请号 |
US20010880621 |
申请日期 |
2001.06.12 |
申请人 |
DRYSDALE TRACY GARRETT;BOBHOLZ SCOTT P. |
发明人 |
DRYSDALE TRACY GARRETT;BOBHOLZ SCOTT P. |
分类号 |
G06F9/52;G06F9/54;G06F13/38;G06F15/00;(IPC1-7):G06F15/00 |
主分类号 |
G06F9/52 |
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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