A system for executing instructions using a plurality of register file segments for a processor. The system includes a global front end scheduler for receiving an incoming instruction sequence, wherein the global front end scheduler partitions the incoming instruction sequence into a plurality of code blocks of instructions and generates a plurality of inheritance vectors describing interdependencies between instructions of the code blocks. The system further includes a plurality of virtual cores of the processor coupled to receive code blocks allocated by the global front end scheduler, wherein each virtual core comprises a respective subset of resources of a plurality of partitionable engines, wherein the code blocks are executed by using the partitionable engines in accordance with a virtual core mode and in accordance with the respective inheritance vectors. A plurality register file segments are coupled to the partitionable engines for providing data storage.

Register file segments for supporting code block execution by using virtual cores instantiated by partitionable engines

A method for executing instructions using a plurality of virtual cores for a processor. The method includes receiving an incoming instruction sequence using a global front end scheduler, and partitioning the incoming instruction sequence into a plurality of code blocks of instructions. The method further includes generating a plurality of inheritance vectors describing interdependencies between instructions of the code blocks, and allocating the code blocks to a plurality of virtual cores of the processor, wherein each virtual core comprises a respective subset of resources of a plurality of partitionable engines. The code blocks are executed by using the partitionable engines in accordance with a virtual core mode and in accordance with the respective inheritance vectors.

Executing instruction sequence code blocks by using virtual cores instantiated by partitionable engines

A system for executing instructions using a plurality of memory fragments for a processor. The system includes a global front end scheduler for receiving an incoming instruction sequence, wherein the global front end scheduler partitions the incoming instruction sequence into a plurality of code blocks of instructions and generates a plurality of inheritance vectors describing interdependencies between instructions of the code blocks. The system further includes a plurality of virtual cores of the processor coupled to receive code blocks allocated by the global front end scheduler, wherein each virtual core comprises a respective subset of resources of a plurality of partitionable engines, wherein the code blocks are executed by using the partitionable engines in accordance with a virtual core mode and in accordance with the respective inheritance vectors. A plurality memory fragments are coupled to the partitionable engines for providing data storage.

Memory fragments for supporting code block execution by using virtual cores instantiated by partitionable engines

A method for accelerating code optimization a microprocessor. The method includes fetching an incoming microinstruction sequence using an instruction fetch component and transferring the fetched macroinstructions to a decoding component for decoding into microinstructions. Optimization processing is performed by reordering the microinstruction sequence into an optimized microinstruction sequence comprising a plurality of dependent code groups. The optimized microinstruction sequence is output to a microprocessor pipeline for execution. A copy of the optimized microinstruction sequence is stored into a sequence cache for subsequent use upon a subsequent hit optimized microinstruction sequence.

A microprocessor accelerated code optimizer

A method for dependency broadcasting through a block organized source view data structure. The method includes receiving an incoming instruction sequence using a global front end; grouping the instructions to form instruction blocks; using a plurality of register templates to track instruction destinations and instruction sources by populating the register template with block numbers corresponding to the instruction blocks, wherein the block numbers corresponding to the instruction blocks indicate interdependencies among the blocks of instructions; populating a block organized source view data structure, wherein the source view data structure stores sources corresponding to the instruction blocks as recorded by the plurality of register templates; upon dispatch of one block of the instruction blocks, broadcasting a number belonging to the one block to a column of the source view data structure that relates that block and marking the column accordingly; and updating the dependency information of remaining instruction blocks in accordance with the broadcast.

Method for dependency broadcasting through a source organized source view data structure

A method of identifying instructions including accessing a plurality of instructions that comprise multiple branch instructions. For each branch instruction of the multiple branch instructions, a respective first mask is generated representing instructions that are executed if a branch is taken. A respective second mask is generated representing instructions that are executed if the branch is not taken. A prediction output is received that comprises a respective branch prediction for each branch instruction. For each branch instruction, the prediction output is used to select a respective resultant mask from among the respective first and second masks. For each branch instruction, a resultant mask of a subsequent branch is invalidated if a previous branch is predicted to branch over said subsequent branch. A logical operation is performed on all resultant masks to produce a final mask. The final mask is used to select a subset of instructions for execution.

Single cycle multi-branch prediction including shadow cache for early far branch prediction

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Single cycle multi-branch prediction including shadow cache for early far branch prediction