Nokia Corporation

Sun Microsystems, Inc.

Gautam Dewan

Chi Fai Ho

Shashank C Merchant

Prabhas Kejriwal

Manish Muthal

A micro-programmable controller is disclosed for parsing a packet and encapsulating data to form a packet. The micro-programmable controller loads an instruction within the micro-controller. The instruction word has a plurality of instruction fields. The micro-controller processes the plurality of instruction fields in parallel. Each instruction field is related to a specific operation for parsing a packet or encapsulating data to form a packet. The programmable micro-controller can be programmed to handle packets to support new types of protocols by programming a template to string specific routines together based on an instruction set specific for parsing and encapsulating.

Micro-programmable protocol packet parser and encapsulator

A circuit for processing source code with associated array bounds limitations includes an execution unit that generates a register value signal and an index number signal corresponding to an array value defined in a source code instruction. A primary register is connected to the execution unit. The primary register produces a base memory address signal in response to the register value signal. A shadow register is also connected to the execution unit. The shadow register produces an array bound value signal in response to the register value signal. An address computation circuit is connected to the execution unit and the primary register. The address computation circuit generates an effective memory address signal based upon the base memory address signal and the index number signal. An address comparison circuit generates an array bound error signal when an effective memory address associated with the effective memory address signal exceeds an array bound value associated with the array bound value signal.

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San Jose, CA, United States of America

Gautam Dewan