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    • 8. 发明授权
    • Cross-compiled simulation timing backannotation
    • 交叉编译的模拟时序反馈
    • US5857093A
    • 1999-01-05
    • US717393
    • 1996-09-20
    • Jonathan D. Bradford
    • Jonathan D. Bradford
    • G06F11/36G06F9/455
    • G06F11/3664G06F11/3624
    • A method and apparatus for simulating a microprocessor-based system produces simulations which are fast and which are accurate in terms of timing information produced. The source code is first compiled so as to produce a first program for a target microprocessor. Timing information is then extracted from the first program. The source code is compiled so as to produce a second program for a simulation microprocessor. The timing information is inserted into the second program, either directly or indirectly by way of the original source code. The second program thus has the timing information embedded therein and available for use by the simulation microprocessor, such that an output based on the timing information may be generated during the execution of the second program. A simulator which simulates execution of a first program by a target microprocessor comprises a simulation microprocessor and a second program. The second program is derived from a same source code program as the first program. Additionally, the second program has timing information embedded therein which pertains to the time required for a target microprocessor to execute individual portions of the first program.
    • 用于模拟基于微处理器的系统的方法和装置产生快速的模拟,并且在产生的定时信息方面是准确的。 首先对源代码进行编译,以产生用于目标微处理器的第一程序。 然后从第一程序提取定时信息。 编译源代码以产生用于仿真微处理器的第二程序。 定时信息通过原始源代码直接或间接插入到第二个程序中。 因此,第二程序具有嵌入其中并可供仿真微处理器使用的定时信息,使得可以在执行第二程序期间产生基于定时信息的输出。 由目标微处理器模拟第一程序的执行的模拟器包括模拟微处理器和第二程序。 第二个程序源自与第一个程序相同的源代码程序。 此外,第二程序具有嵌入其中的定时信息,其涉及目标微处理器执行第一程序的各个部分所需的时间。