Back to results
US 6,618,779 B1Granted
Method and apparatus for chaining interrupt service routines
AssigneeIntel Corporation
InventorRobert A. Branch
Life of this patent
Estimating the term…
Abstract
A method of chaining interrupt service routines comprises creating a chain handler module and replacing an instruction in an existing interrupt service routine with a branch directed to the chain handler module.
Claims25
A method of chaining interrupt service routines, comprising:
- storing a chain handler module in an interrupt vector table, wherein the chain handler module comprises chain handler instructions to call a new interrupt service routine;
- and
- replacing an instruction in an existing interrupt service routine with a branch directed to the chain handler module, wherein the existing interrupt service routine is located in the interrupt vector table.
A method of executing chained interrupt service routines, comprising:
- branching to a chain handler module;
- calling a new interrupt service routine from the chain handler module;
- and
- executing instructions of an existing interrupt service routine.
1 more element
A computer readable memory containing program instructions that, when executed by a processor, cause the processor to:
- store a chain handler module in an interrupt vector table, wherein the chain handler module comprises chain handler instructions to call a new interrupt service routine;
- and
- replace an instruction in an existing interrupt service routine with a branch directed to the chain handler module, wherein the existing interrupt service routine is located in the interrupt vector table.
A computer system, comprising:
- a processor;
- and
- a computer readable memory containing program instructions that, when executed by the processor, cause the processor to:
- branch to a chain handler module;
- call a new interrupt service routine from the chain handler module;
- and
- execute instructions of an existing interrupt service routine.
4 more elements
Dependencies are inferred from the claim text.