公开(公告)号：EP0640911A4

公开(公告)日：1995-07-19

申请号：EP94908481

申请日：1994-03-02

Applicant: SEGA ENTERPRISES KK

Inventor： NAGASHIMA TAKESHI SEGA ENTERPR

IPC: G06F9/38 ,  G06F9/445 ,  G06F11/00 ,  G06F21/12 ,  G06F21/78 ,  G06F21/79 ,  G06F9/06

CPC classification number: G06F21/78 ,  A63F2300/201 ,  G06F9/3802 ,  G06F9/4401 ,  G06F11/00 ,  G06F21/121 ,  G06F21/123 ,  G06F21/79 ,  G06F2221/2109

Abstract: This method advantageously utilizes the resources of software programs stored in the external memory connected to the hardware main frame. The circuit device is for implementing this method. The method comprises an initialization routine (X) including a step of switching the bank of BIOS-ROM (13) in the main frame (1) having a CPU (11) to the bank of software programs stored in an external storage (2), a security check routine (Y) in which whether or not a software program is correct is checked, a routine (Z) in which a software program is executed by the CPU (11) in the main frame (1) when the software program is judged to be correct in the security check routine (Y). By resetting the CPU (11) while the bank is at least on the side of the software program which is stored in the external storage (2), the CPU (11) is released from the security check routine (Y), and can execute this software program by the routine (Z).

Abstract translation: 该方法有利地利用了存储在连接到硬件主框架的外部存储器中的软件程序的资源。 该电路装置用于实现该方法。 该方法包括初始化例程（X），该初始化例程包括将具有CPU（11）的主框架（1）中的BIOS-ROM（13）的存储体切换到存储在外部存储器（2）中的软件程序库的步骤， ，检查软件程序是否正确的安全检查程序（Y），在软件程序中由主机架（1）中的CPU（11）执行软件程序的程序（Z） 在安全检查程序（Y）中判断为正确。 当存储体至少在存储在外部存储器（2）中的软件程序一侧时，通过重置CPU（11），CPU（11）从安全检查例程（Y）中释放，并且可以执行 这个软件程序由例程（Z）。