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PROVISION OF EXTENDED ADDRESSING MODES IN A SINGLE INSTRUCTION MULTIPLE DATA (SIMD) DATA PROCESSOR
PROVISION OF EXTENDED ADDRESSING MODES IN A SINGLE INSTRUCTION MULTIPLE DATA (SIMD) DATA PROCESSOR
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机译:单指令多数据(SIMD)数据处理器中扩展的寻址模式的提供
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摘要
Executing a first memory access instruction with update by an N-bit processor includes accessing at least one source register of a plurality of registers, wherein the accessing includes accessing a first register, wherein each register of the plurality of registers includes a main portion of N bits and an extension portion of M bits, wherein the main portion of the first register includes a first address operand. The execution of the first instruction further includes forming a memory access address using the first address operand; using the memory access address as an address for a memory access; producing an updated address operand; and writing the updated address operand to the main portion of the first register. The producing includes accessing an extension portion of a source register of the at least one source register to obtain modifying information and using the modifying information in the producing an updated address operand.
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