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Architecture for implementing PCMCIA card services under the windows operating system in enhanced mode
Architecture for implementing PCMCIA card services under the windows operating system in enhanced mode
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机译:在Windows操作系统下以增强模式实现PCMCIA卡服务的体系结构
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摘要
An implementation of PCMCIA Card Services for the Windows operating system in enhanced mode. A Card Services dynamic linked library (DLL) was written which contains a library of C functions which perform the Card Services functions. The Card Services DLL maintains a Card Services database of the Card Services resources available such that the Card Services DLL can share the Card Services resources among clients of Card Services. Windows applications can call the functions in the Card Services DLL directly to access Card Services functions. The Card Services DLL posts messages to a Card Services Windows application to request a Card Services function be performed with background processing. The Card Services Windows application processes the Card Services function at a later time. A Card Services virtual device driver (V× D) provides system functions to the Card Services DLL. The Card Services V×D hooks the INT 1A software interrupt such that Card Services requests which use the register based binding in the PCMCIA Card Services specification are intercepted and directed to the Card Services DLL. The Card Services V×D also traps interrupts caused by PCMCIA socket adapters and calls the appropriate interrupt handling routine in the Card Services DLL.
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