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Reduced instruction set computer (RISC) type microprocessor executing instruction functions indicating data location for arithmetic operations and result location
Reduced instruction set computer (RISC) type microprocessor executing instruction functions indicating data location for arithmetic operations and result location
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机译:精简指令集计算机(RISC)型微处理器,执行指令功能,指示用于算术运算的数据位置和结果位置
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摘要
A reduced instruction set type microprocessor which reduces loss of central processing unit (CPU) time. A circuit is provided to identify and keep track of whether an arithmetic instruction requires operands contained in internal registers or in main memory. First and second execution stage circuits are provided for executing the first and second instruction executing functions, respectively. The first execution stage circuit performs address calculation if the instruction involves main memory. The second execution stage circuit selects the appropriate operands and performs the arithmetic operation.
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