Instruction dispatch routing

A method comprising:

• receiving a plurality of instructions in a cycle, the plurality of instructions including one or more instructions designated as resource intensive and one or more instructions designated as non-resource intensive;
• dispatching each of the one or more instructions designated as resource intensive to a respective one of a plurality of issue queues according to a first rotation order;
• and
• dispatching each of the one or more instructions designated as non-resource intensive to a respective one of the plurality of issue queues according to a second rotation order opposite to the first rotation order.

A processor comprising:

• an instruction fetch unit;
• a dispatch unit communicatively coupled to the instruction fetch unit;
• and
• a plurality of issue queues communicatively coupled to the dispatch unit;
• wherein the dispatch unit is configured to:
• receive a plurality of instructions from the instruction fetch unit;
• determine a respective priority status for each of the plurality of instructions, wherein the instruction fetch unit is configured to determine an instruction type designated as priority based on historical data of instruction types dispatched in previous cycles;
• select a rotation order for each of the plurality of instructions based on the respective priority status, wherein a first rotation order is associated with priority instructions and a second rotation order, different from the first rotation order, is associated with non-priority instructions;
• select a respective issue queue of the plurality of issue queues for each of the plurality of instructions based on the respective selected rotation order;
• and
• dispatch each of the plurality of instruction to the respective selected issue queue.

A computer system comprising:

• a memory configured to store program code;
• and
• a processor communicatively coupled to the memory and configured to execute the program code, wherein the processor comprises:
• an instruction fetch unit;
• a dispatch unit communicatively coupled to the instruction fetch unit;
• and
• a plurality of issue queues communicatively coupled to the dispatch unit;
• wherein the dispatch unit is configured to:
• receive a plurality of instructions in a cycle, the plurality of instructions including one or more instructions designated as resource intensive and one or more instructions designated as non-resource intensive;
• dispatch each of the one or more instructions designated as resource intensive to a respective one of the plurality of issue queues according to a first rotation order;
• and
• dispatch each of the one or more instructions designated as non-resource intensive to a respective one of the plurality of issue queues according to a second rotation order opposite to the first rotation order.