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2 results about "Indirect branch" patented technology
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An indirect branch (also known as a computed jump, indirect jump and register-indirect jump) is a type of program control instruction present in some machine language instruction sets. Rather than specifying the address of the next instruction to execute, as in a direct branch, the argument specifies where the address is located. An example is 'jump indirect on the r1 register', which means that the next instruction to be executed is at the address in register r1. The address to be jumped to is not known until the instruction is executed. Indirect branches can also depend on the value of a memory location.
Data Processing Apparatus and Method for Runtime Integrity Attestation
PendingUS20260010619A1Platform integrity maintainanceMachine execution arrangementsIndirect branchComputer engineering
A data processing apparatus includes a processing circuitry configured to execute a modified version of an application machine code defining the application. The modified version of the application machine code comprises one or more direct or indirect branch instructions and one or more machine code instructions being one or more target instructions for the one or more direct or indirect branch instructions. During the execution of the modified version of the application machine code, the processing circuitry is further configured to update a first register value in a first register and a second register value in a second register and to trigger an exception, based on the first register value and the second register value and / or when the one or more direct or indirect branch instructions target an instruction of the modified version of the application machine code.
Owner:HUAWEI TECH CO LTD
Reduction of data transfer overhead
ActiveUS12645459B2Error detection/correctionConcurrent instruction executionReturn functionData transmission
Aspects of the disclosure are directed to reduction of data transfer overhead. In accordance with one aspect, increment a function call counter for an executed function call; decrement the function call counter for an executed return from function call; infer the indirect branch address based on a function call counter value and when a cumulative count of received executed atoms indicates a return from function call has been executed; oversaturate the function call counter at a maximum counter value if the function call counter contains the maximum counter value and a subsequent function call is executed; and undersaturate the function call counter at a minimum counter value if the function call counter contains the minimum counter value and a subsequent return from function call is executed.
Owner:QUALCOMM INC