发明名称 |
SIMD TCP/UDP checksumming in a CPU |
摘要 |
A CPU adapted to calculate a checksum simultaneously on multiple values packed into a single register. An adder is provided which adds a number of values packed into a first register to a number of packed values from a second register. The adder is constructed, or partitioned, so that the values do not propagate their carry bit to the next value. A special carry bit adder is provided which will add a carry bit out of each partitioned portion back into the sum value to generate the sum required by the checksum protocol.
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申请公布号 |
US5953240(A) |
申请公布日期 |
1999.09.14 |
申请号 |
US19970880925 |
申请日期 |
1997.06.23 |
申请人 |
SUN MICROSYSTEMS, INC. |
发明人 |
PRABHU, J. ARJUN;GENTRY, DENTON E. |
分类号 |
G06F7/50;G06F11/00;G06F11/10;(IPC1-7):G06F11/00 |
主分类号 |
G06F7/50 |
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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