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1.发明授权Instructions to load and store containing words in a computer system emulator with host word size larger than that of emulated machine 有权在计算机系统仿真器中加载和存储包含字词的指令，其主机字大小于仿真机的大小公开(公告)号：US07406406B2
公开(公告)日：2008-07-29
申请号：US11006414
申请日：2004-12-07
CPC分类号： G06F9/30043 , G06F9/30101 , G06F9/30174
摘要： Two unique instructions for the instruction set of a target 36-bit machine which is emulated on a host 64-bit machine are provided in order to achieve visibility, to an emulated application program, of a “containing” word stored in the memory of the host machine. A “LOAD64” instruction loads the emulator memory location representing an emulated “Q” (supplementary accumulator) register with the “normal” 36-bits of the containing word. At the same time, the “upper” 28 bits of the 64-bit containing word is copied into the emulator memory location representing an emulated “A” (accumulator) register. Thus, the emulated 36-bit machine “sees” and can examine the 64-bit word in its entirety. A “Store64” instruction stores the emulated “Q” register contents into the lower 36-bits of the 64-bit containing word, and at the same time stores the lower 28 bits of the emulated “A” register contents into the upper 28 bits of the 64-bit containing word.
摘要翻译： 提供了用于在主机64位机器上仿真的目标36位机器的指令集的两个唯一指令，以便实现模拟应用程序对存储在存储器中的“包含”字的可见性 主机。 “LOAD64”指令将模拟器存储位置加载到包含字的“正常”36位的模拟“Q”（补充累加器）寄存器中。 同时，64位包含字的“上”28位被复制到表示仿真“A”（累加器）寄存器的仿真器存储单元中。 因此，仿真的36位机器“看到”并且可以检查64位字的整体。 “Store64”指令将模拟的“Q”寄存器内容存储到64位包含字的低36位，同时将仿真的“A”寄存器内容的低28位存储到高位28位 的64位包含字。
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