发明名称 |
Execution of a sequence of vector instructions preceded by a swizzle sequence instruction specifying data element shuffle orders respectively |
摘要 |
Operand vector multiplexer sequence control is used in a vector-based execution unit to control the shuffling of data elements in operand vectors used by a sequence of vector instructions processed by the vector-based execution unit. A swizzle sequence instruction is defined in an instruction set for the vector-based execution unit and is used to selectively apply a sequence of vector data element shuffle orders to one or more operand vectors to be used by the associated sequence of vector instructions. As a result, when a common sequence of data element shuffle orders is used frequently for a sequence of vector instructions, a single swizzle sequence instruction may be used to select the desired sequence of custom data element ordering for each of the vector instructions in the sequence.
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申请公布号 |
US7814303(B2) |
申请公布日期 |
2010.10.12 |
申请号 |
US20080256550 |
申请日期 |
2008.10.23 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
MUFF ADAM J.;SHEARER ROBERT A.;TUBBS MATTHEW R. |
分类号 |
G06F9/315 |
主分类号 |
G06F9/315 |
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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