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User controlled dialog resource switching in a multi-tasking word processor

  • US 4,553,202 A
  • Filed: 05/06/1982
  • Issued: 11/12/1985
  • Est. Priority Date: 05/06/1982
  • Status: Expired due to Term
First Claim
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1. A method for the real time reassignment of input or output means coupling a multi-tasking processor in which switching from task to task is selectively invoked by interrupts including interrupts invoked through the input means, comprising the steps of:

  • building a linked list of identities of those tasks which call the input or output means and embedding pointers defining a dispatching order there among in counterpart task descriptions; and

    responsive to an interrupt invoked through the input means, reassigning the input or output means from the task currently executing to the next task in order on the linked list;

    whereby assignment of the input or output means is rotatable among only those tasks in linked list order.

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