发明名称 |
Apparatus for controlling rounding modes in single instruction multiple data (SIMD) floating-point units |
摘要 |
An apparatus for controlling rounding modes in a single instruction multiple data (SIMD) floating-point unit is disclosed. The SIMD floating-point unit includes a floating-point status-and-control register (FPSCR) having a first rounding mode bit field and a second rounding mode bit field. The SIMD floating-point unit also includes means for generating a first slice and a second slice. During a floating-point operation, the SIMD floating-point unit concurrently performs a first rounding operation on the first slice and a second rounding operation on the second slice according to a bit in the first rounding mode bit field and a bit in the second rounding mode bit field within the FPSCR, respectively.
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申请公布号 |
US7447725(B2) |
申请公布日期 |
2008.11.04 |
申请号 |
US20040982110 |
申请日期 |
2004.11.05 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
DHONG SANG HOO;HOFSTEE HARM PETER;JACOBI CHRISTIAN;MUELLER SILVIA MELITTA;OH HWA-JOON |
分类号 |
G06F7/38 |
主分类号 |
G06F7/38 |
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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