Abstract: A data processing apparatus is provided that comprises fetch circuitry to fetch an instruction stream comprising a plurality of instructions, including a status updating instruction, from storage circuitry. Status storage circuitry stores a status value. Execution circuitry executes the instructions, wherein at least some of the instructions are executed in an order other than in the instruction stream. For the status updating instruction, the execution circuitry is adapted to update the status value based on execution of the status updating instruction. Flush circuitry flushes, when the status storage circuitry is updated, following instructions that appear after the status updating instruction in the instruction stream.

Abstract: Methods and systems relating to improved processing architectures with pre-staged instructions are disclosed herein. A disclosed processor includes a memory, at least one functional processing unit, a bus, a set of instruction registers configured to be loaded, using the bus, with a set of pre-staged instructions from the memory, and a logic circuit configured to provide the set of pre-staged instructions from the set of instruction registers to the at least one functional processing unit in response to receiving an instruction from the instruction memory.

Abstract: Methods and systems relating to improved processing architectures with pre-staged instructions are disclosed herein. A disclosed processor includes an instruction memory, at least one functional processing unit, a bus, a set of instruction registers configured to be loaded, using the bus, with a set of pre-staged instructions from the instruction memory, and a logic circuit configured to provide the set of pre-staged instructions from the set of instruction registers to the at least one functional processing unit in response to receiving an instruction from the instruction memory.

Abstract: Methods and systems relating to improved processing architectures with pre-staged instructions are disclosed herein. A disclosed processor includes an instruction memory, at least one functional processing unit, a bus, a set of instruction registers configured to be loaded, using the bus, with a set of pre-staged instructions from the instruction memory, and a logic circuit configured to provide the set of pre-staged instructions from the set of instruction registers to the at least one functional processing unit in response to receiving an instruction from the instruction memory.

Abstract: Methods and systems relating to improved processing architectures with pre-staged instructions are disclosed herein. A disclosed processor includes an instruction memory, at least one functional processing unit, a bus, a set of instruction registers configured to be loaded, using the bus, with a set of pre-staged instructions from the instruction memory, and a logic circuit configured to provide the set of pre-staged instructions from the set of instruction registers to the at least one functional processing unit in response to receiving an instruction from the instruction memory.

Abstract: A data processing apparatus is provided that comprises fetch circuitry to fetch an instruction stream comprising a plurality of instructions, including a status updating instruction, from storage circuitry. Status storage circuitry stores a status value. Execution circuitry executes the instructions, wherein at least some of the instructions are executed in an order other than in the instruction stream. For the status updating instruction, the execution circuitry is adapted to update the status value based on execution of the status updating instruction. Flush circuitry flushes, when the status storage circuitry is updated, flushed instructions that appear after the status updating instruction in the instruction stream.

Abstract: An apparatus and method are provided for efficient utilisation of an address translation cache. The apparatus has an address translation cache with a plurality of entries, where each entry stores address translation data used when converting a virtual address into a corresponding physical address of a memory system. Each entry identifies whether the address translation data stored therein is coalesced or non-coalesced address translation data, and also identifies a page size for a page within the memory system that is associated with that address translation data. Control circuitry is responsive to a virtual address, to perform a lookup operation within the address translation cache to produce, for each page size supported by the address translation cache, a hit indication to indicate whether a hit has been detected for an entry storing address translation data of the associated page size.

Abstract: A computer implemented method, and an apparatus, are provided for performing a scalability check on a Hardware Description Language (HDL) representation of a circuit. The HDL representation identifies a plurality of sink signals, where each sink signal is arranged to take a result value computed by performing an operation using as input one or more driver signals. The method comprises creating within a storage a mapping table to map drivers signals to sink signals, where each entry identifies a sink signal and an associated sink width indication, identifies each driver signal used in the computation of the result value for that sink signal along with an associated driver width indication for each driver signal, and an operation type indication for the operation used to compute the result value for the sink signal.

Abstract: An apparatus and method are provided for efficient utilisation of an address translation cache. The apparatus has an address translation cache with a plurality of entries, where each entry stores address translation data used when converting a virtual address into a corresponding physical address of a memory system. Each entry identifies whether the address translation data stored therein is coalesced or non-coalesced address translation data, and also identifies a page size for a page within the memory system that is associated with that address translation data. Control circuitry is responsive to a virtual address, to perform a lookup operation within the address translation cache to produce, for each page size supported by the address translation cache, a hit indication to indicate whether a hit has been detected for an entry storing address translation data of the associated page size.

Abstract: A computer implemented method, and an apparatus, are provided for performing a scalability check on a Hardware Description Language (HDL) representation of a circuit. The HDL representation identifies a plurality of sink signals, where each sink signal is arranged to take a result value computed by performing an operation using as input one or more driver signals. The method comprises creating within a storage a mapping table to map drivers signals to sink signals, where each entry identifies a sink signal and an associated sink width indication, identifies each driver signal used in the computation of the result value for that sink signal along with an associated driver width indication for each driver signal, and an operation type indication for the operation used to compute the result value for the sink signal.