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    • 17. 发明授权
    • Branch predicting computer
    • 分公司预测电脑
    • US4435756A
    • 1984-03-06
    • US326837
    • 1981-12-03
    • Hanan Potash
    • Hanan Potash
    • G06F9/32G06F9/38G06F9/42
    • G06F9/30094G06F9/3844G06F9/3846
    • Disclosed is a digital computer which includes means for storing a plurality of instructions arranged as a program with conditional branch instructions at respective locations in said program specifying conditions to be tested; an instruction prefetch means and an instruction execute means for respectively fetching and executing different instructions of said program at the same time in a pipelined fashion; said conditional branch instruction at each of said locations further having multiple encodings which predict the state of the condition to be tested; and a control means for detecting when said prefetch means has fetched one of said conditional branch instructions and for fetching the next instruction based on the predicted state of the condition to be tested and encoded in said fetched conditional branch instruction.
    • 公开了一种数字计算机,其包括用于存储作为程序布置的多个指令的装置,该程序具有在所述程序指定要测试条件的各个位置的条件分支指令; 指令预取装置和指令执行装置,用于以流水线方式同时分别取出和执行所述程序的不同指令; 所述条件分支指令在每个所述位置处进一步具有多个编码以预测待测条件的状态; 以及控制装置,用于检测何时所述预取装置已经取得了所述条件转移指令中的一个,并且用于基于在所述获取的条件转移指令中所要测试和编码的条件的预测状态来取得下一条指令。