发明授权
- 专利标题: General purpose register file architecture for aligned simd
- 专利标题(中): 通用寄存器文件架构用于对齐simd
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申请号: US09608983申请日: 2000-06-30
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公开(公告)号: US07120781B1公开(公告)日: 2006-10-10
- 发明人: Ravi Kolagotla , David B. Witt , Bradley C. Aldrich
- 申请人: Ravi Kolagotla , David B. Witt , Bradley C. Aldrich
- 申请人地址: US CA Santa Clara US MA Norwood
- 专利权人: Intel Corporation,Analog Devices, Inc.
- 当前专利权人: Intel Corporation,Analog Devices, Inc.
- 当前专利权人地址: US CA Santa Clara US MA Norwood
- 代理机构: Fish & Richardson P.C.
- 主分类号: G06F9/34
- IPC分类号: G06F9/34
摘要:
A register file architecture in a general purpose digital signal processor (DSP) supports alignment independent SIMD (Single Instruction/Multiple Data) operations. The register file architecture includes a register pair and an alignment multiplexer. Two 32 bit grouped words may be loaded into the register pair. Each grouped word includes four 8 bit operands. The alignment state of the 32 bit words may be determined by the two least significant bits (LSBs) of the pointer addresses of the grouped words. These LSBs are used to control the alignment MUX to select n operands from the two 32 bit grouped words and output an aligned 32 bit grouped word to execution units for parallel processing.