Method and System for Managing Out of Order Dispatched Instruction Queue with Partially De-Coded Instruction Stream

A computer program product stored on a recordable-type computer readable medium for managing an out of order dispatched instruction queue in a microprocessor, the computer program product comprising:

• computer useable program code for assigning a group identification number and a target identification number to an instruction in an instruction stream, wherein the group identification number and the target identification number are identifiers assigned prior to dispatching the instruction;
• computer useable program code for pre-decoding the group identification number and the target identification number;
• computer useable program code for dispatching the instruction to an instruction queue;
• and
• computer useable program code for re-ordering the instruction in the instruction stream after executing the instruction utilizing information from the pre-decoding of the group identification number and the target identification number.

A data processing system for managing an out of order dispatched instruction queue in a microprocessor, the data processing system comprising:

• a bus system;
• a storage device connected to the bus system, wherein computer useable program code is stored on the storage device;
• and
• a processing unit connected to the bus system, wherein the processing unit is adapted to assign a group identification number and a target identification number to an instruction in an instruction stream, wherein the group identification number and the target identification number are identifiers assigned prior to dispatching the instruction;
• to pre-decode the group identification number and the target identification number;
• to dispatch the instruction to an instruction queue;
• and to re-order the instruction in the instruction stream after executing the instruction utilizing information from the pre-decoding of the group identification number and the target identification number.