Inventor

BONANNO JAMES J

US82 patents

⚠️ This page may combine multiple inventors who share the name “BONANNO JAMES J”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

BONANNO JAMES J

IBM

Auxiliary branch prediction with usefulness tracking

Branch prediction utilizing both a branch target buffer and a multiple target table

Hybrid branch prediction using a global selection counter and a prediction method comparison table

Accuracy of operand store compare prediction using confidence counter

Dynamic thread sharing in branch prediction structures

Accuracy of operand store compare prediction using confidence counter

Auxiliary perceptron branch predictor with magnitude usage limit

Perceptron branch predictor with virtualized weights

Global weak pattern history table filtering

Method and system for power conservation in a hierarchical branch predictor

System and method for providing asynchronous dynamic millicode entry prediction

Heuristic method to control fetching of metadata from a cache hierarchy

Pointer associated branch line jumps for accelerated line jumps

Branch prediction using multi-way pattern history table (PHT) and global path vector (GPV)

Variable branch target buffer (BTB) line size for compression

Stream based branch prediction index accelerator for multiple stream exits

Stream based branch prediction index accelerator for multiple stream exits

Branch predictor search qualification using stream length prediction

Caching of perceptron branch patterns using ternary content addressable memory based on a most influential bit location in a branch history vector

Dynamic thread sharing in branch prediction structures

Predictive scheduler for memory rank switching

Perceptron branch predictor with virtualized weights

Dynamic thread sharing in branch prediction structures

Branch prediction based on correlating events

Single thread cache miss rate estimation

Accuracy of operand store compare prediction using confidence counter

Variable updates of branch prediction states

Semi-exclusive second-level branch target buffer

Age management logic

System and method for search area confined branch prediction

Methods, systems, and computer program products for recovering from branch prediction latency

Stream based branch prediction index accelerator with power prediction

Predictive scheduler for memory rank switching

Method, system and computer program product for an implicit predicted return from a predicted subroutine

Distance based branch prediction and detection of potential call and potential return instructions

Branch prediction using multi-way pattern history table (PHT) and global path vector (GPV)

Silent mode and resource reassignment in branch prediction logic

BONANNO JAMES J

Asynchronous lookahead hierarchical branch prediction

State machine-based filtering of pattern history tables based on distinguishable pattern detection

Selectively blocking branch prediction for a predetermined number of instructions

Second-level branch target buffer bulk transfer filtering

Branch target buffer preload table

Global weak pattern history table filtering

Counter-based entry invalidation for metadata previous write queue

Reducing branch prediction latency using a branch target buffer with a most recently used column prediction

Fast index tree for accelerated branch prediction

Mitigating lookahead branch prediction latency by purposely stalling a branch instruction until a delayed branch prediction is received or a timeout occurs

PRASKY BRIAN R

Method and apparatus to limit millicode routine end branch prediction

High performance cache translation look-aside buffer (TLB) lookups using multiple page size prediction

Hard error detection