发明名称 |
System for managing a plurality of shared interrupt handlers in a linked-list data structure |
摘要 |
A system is disclosed for managing a plurality of interrupt handlers in a linked-list data structure, for servicing a plurality of input/output devices sharing a common interrupt line in a microcomputer. The system provides for an orderly method to link a newly loaded interrupt handler routine into a linked-list data structure consisting of previously loaded interrupt handler routines. The system further provides for an orderly method to share a common interrupt line among a plurality of input/output devices being serviced by the interrupt handlers. The system further provides for an orderly means to unlink a particular interrupt handler routine from the linked-list data structure when a corresponding input/output device is to be deactivated. The system finds special utility in a multitasking operating system environment where input/output devices can be deactivated in a different sequence from that in which they were originally activated.
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申请公布号 |
US4768149(A) |
申请公布日期 |
1988.08.30 |
申请号 |
US19850770541 |
申请日期 |
1985.08.29 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
KONOPIK, BRADLY J.;BRADLEY, DAVID J.;REED, MARTIN A.;TANNENBAUM, ALAN R.;TURNER, MICHAEL R. |
分类号 |
G06F9/46;G06F9/48;G06F13/24;(IPC1-7):G06F9/46 |
主分类号 |
G06F9/46 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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