Processor instruction exception handling

A computer program product embodied in a non-transitory computer readable medium for instruction execution, the computer program product comprising code which causes one or more processors to perform operations of:

• accessing a processor core, wherein the processor core executes at least one instruction thread, and wherein the processor core executes one or more instructions out of order;
• maintaining an ordered list of instructions, wherein the ordered list is based on instructions that are presented to the processor core for execution, and wherein the ordered list is organized using one or more pointers;
• detecting an execution exception in the processor core, wherein the execution exception corresponds to one of the instructions in the ordered list, and wherein the execution exception requires initiating an exception handling routine;
• determining an effective age of an instruction in the ordered list that corresponds to the execution exception;
• and
• initiating the exception handling routine, based on matching the effective age of an instruction in the ordered list with one of the one or more pointers.

A computer system for instruction execution comprising:

• a memory which stores instructions;
• one or more processors coupled to the memory wherein the one or more processors, when executing the instructions which are stored, are configured to:
• access a processor core, wherein the processor core executes at least one instruction thread, and wherein the processor core executes one or more instructions out of order;
• maintain an ordered list of instructions, wherein the ordered list is based on instructions that are presented to the processor core for execution, and wherein the ordered list is organized using one or more pointers;
• detect an execution exception in the processor core, wherein the execution exception corresponds to one of the instructions in the ordered list, and wherein the execution exception requires initiating an exception handling routine;
• determine an effective age of an instruction in the ordered list that corresponds to the execution exception;
• and
• initiate the exception handling routine, based on matching the effective age of an instruction in the ordered list with one of the one or more pointers.