Showing papers on "Legacy mode published in 1998"
Patent•
06 Jan 1998
TL;DR: The inventive mechanism as mentioned in this paper allows an application to switch modes during its operation, between a compatibility or legacy mode for a previous architecture and a native one for a current architecture, by using an official function descriptor which describes information for accessing a function which resides in one module.
Abstract: The inventive mechanism allows an application to switch modes during its operation, between a compatibility or legacy mode for a previous architecture, and a native mode for a current architecture. The mechanism includes an official function descriptor which describes information for accessing a function which resides in one module. The OFD has a legacy portion is useable by a legacy module and a native portion is useable by a native module. The mechanism also includes a linkage table that resides in a second module which references the function in the first module. The portion of the OFD which corresponds to the mode of the linkage table module is copied into the linkage table. Each portion contains one entry that corresponds to an address location of the function, and another entry that is a value for a register which refers to the data segment corresponding to the load module containing the function. The information in the OFD depends on whether the function is a legacy function or a native function.
43 citations
Patent•
12 Mar 1998
TL;DR: An analog joystick interface system for overcoming the deficiencies of the conventional analog joystick interfaces by supporting positional tracking in both a legacy and an enhanced mode is presented in this article, where a watch dog timer relieves the host of the need to continuously poll by directly providing the host with positional data concerning the relative physical orientation of the positional grip.
Abstract: An analog joystick interface system for overcoming the deficiencies of the conventional analog joystick interface by supporting positional tracking in both a legacy and an enhanced mode. In the legacy mode, the host calculates the relative physical orientation of a positional grip of an analog joystick by relying upon continuous polling techniques. In the enhanced mode, a watch dog timer relieves the host of the need to continuously poll by directly providing the host with positional data concerning the relative physical orientation of the positional grip. The ability of the joystick interface to provide both the legacy and enhanced modes ensures that compability issues concerning the legacy DOS-based software applications and CPU allocation problems associated with continuous polling are resolved without considerably increasing cost or complexity of the joystick interface.
4 citations