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    • 3. 发明授权
    • Central processing unit incorporation selectable, precisa ratio, speed
of execution derating
    • 中央处理单元合并可选择,准确率,执行速度降额
    • US5367699A
    • 1994-11-22
    • US800343
    • 1991-11-26
    • Ronald E. LangeRussell W. GuenthnerLeonard Rabins
    • Ronald E. LangeRussell W. GuenthnerLeonard Rabins
    • G06F9/30G06F9/38G06F7/62
    • G06F9/3873G06F9/3836G06F9/3869
    • In order to obtain precise submodel control in a central processing unit, there is provided a subcounter which is controlled to count up from a beginning count as an instruction is executed and to count back down at the same rate to the reference count to obtain an effective delay before processing of the next instruction to be processed during normal program execution is started. Instruction transfer and decoding of the new instruction entering the pipeline is inhibited until the subcounter's most significant bit ("sign bit") changes state. If the subcounter is allowed to count during the entire count up and count down periods, a derated mode of 1/2 is achieved. To obtain other fractions, the subcounter is controlled to count periodically during one count direction period and to count full time during the other count direction period. In the exemplary embodiment, 1/4 and 3/4 derating is selectively achieved by the use of a modulo 3 counter which allows the subcounter to count only 1/3 the time in one or the other of the subcounter count up or count down periods.
    • 为了在中央处理单元中获得精确的子模型控制,提供了一个子计数器,其被控制为从执行指令开始计数开始计数,并以与参考计数相同的速率向下计数以获得有效的 开始在正常程序执行期间处理下一个待处理指令之前的延迟。 禁止进入管道的新指令的指令传输和解码,直到子计数器的最高有效位(“符号位”)改变状态。 如果在整个计数和倒计时期间允许子计数器进行计数,则实现1/2的降额模式。 为了获得其他分数,子计数器被控制以在一个计数方向期间周期性地计数,并且在另一个计数方向周期期间计数全时间。 在示例性实施例中,通过使用模3计数器来选择性地实现1/4和3/4降额,所述模3计数器允许次计数器仅对次计数器的一个或另一个中的时间进行计数, 。
    • 10. 发明授权
    • Host computer system emulating target system legacy software and providing for incorporating more powerful application program elements into the flow of the legacy software
    • 主机计算机系统模拟目标系统遗留软件,并提供将更强大的应用程序元素并入到传统软件的流程中
    • US07809547B2
    • 2010-10-05
    • US11324052
    • 2005-12-29
    • Russell W. GuenthnerDavid W. SelwayStefan R. BohultClinton B. Eckard
    • Russell W. GuenthnerDavid W. SelwayStefan R. BohultClinton B. Eckard
    • G06F9/455G06F9/45G06F9/44G06F9/00G06F9/04
    • G06F9/455
    • As manufacturers of very fast and powerful commodity processors continue to improve the capabilities of their products, it has become practical to emulate the proprietary hardware and operating systems of powerful older computers on platforms built using commodity processors such that the manufacturers of the older computers can provide new systems which allow their customers to continue to use their highly-regarded proprietary legacy software on state-of-the-art new computer systems by emulating the older computer in software that runs on the new systems. In an example of the subject invention, a 64-bit Cobol Virtual Machine instruction provides the capability of adding to or improving the performance of legacy 36-bit Cobol code. Legacy Cobol instructions can be selectively diverted, in the host CPU, to a 64 bit Virtual Machine Implementation. The output legacy and new Cobol code is compiled in a dedicated implementation of the Cobol compiler, and the output of the special purpose compiler is emulated in a special purpose software emulator, separate from the main software emulator that handles the normal 36-bit stream of legacy code.
    • 随着非常快速和强大的商品处理器的制造商不断提高其产品的能力,在使用商品处理器构建的平台上模拟强大的旧版计算机的专有硬件和操作系统变得务实,这样老式计算机的制造商可以提供 新系统允许他们的客户通过在新系统上运行的软件模拟旧的计算机,继续使用他们备受赞誉的专有遗留软件在最先进的新计算机系统上。 在本发明的一个示例中,64位Cobol虚拟机指令提供添加或改善传统36位Cobol代码的性能的能力。 传统Cobol指令可以在主机CPU中选择性转移到64位虚拟机实现。 输出遗留和新的Cobol代码是在Cobol编译器的专用实现中编译的,专用编译器的输出在专用软件仿真器中仿真,与主软件仿真器分离,处理正常的36位流 遗留代码