Pre-Silicon Software Development
ConceptPre-silicon software development is the development and testing of processor software before the target processor or system is manufactured, and sometimes before the design is complete. The provided evidence describes instruction set simulators as a key mechanism for this activity because they model software execution from the instruction set architecture and can run far faster than gate-level simulation.
First seen 5/26/2026
Last seen 5/29/2026
Evidence 2 chunks
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Overview
Pre-silicon software development is the early development and testing of software for a processor before the processor is manufactured. The evidence describes this as a major application area for instruction set simulators (ISS), which enable software simulation before the target system is manufactured or even before the hardware design is finished. [C1]
Role of instruction set simulators
NEIGHBORHOOD
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2 connectionsThe paper mentions pre-silicon software development as a major use case for ISS.
ISS is used for pre-silicon software development.
LINKED ENTITIES
5 linksInstruction Set Simulator uses The evidence states that instruction set simulators are a major application mechanism for pre-silicon software development, enabling simulation of software before the target system is manufactured or finished.
Instruction Set Architecture modeled_by_simulators The evidence states that abstract simulators for early software testing are based on the instruction set architecture and that the ISA may exist before the design is complete.
Gate-Level Simulation contrasted_with The evidence contrasts ISS-based pre-silicon software development with gate-level simulation, noting that gate-level simulation is cycle-accurate but typically too slow for in-depth software testing and unavailable in early phases.
formal verification can_support_correct_simulator_generation The evidence describes generating an ISS from a complete property suite used in formal verification so the simulator complies with the verified ISA and design.
Register-Transfer Level alternative_source_for_simulator_derivation The evidence mentions that an ISS can be automatically derived from a high-level or RTL description, while noting limitations for optimized or pipelined RTL designs.
CITATIONS
8 sources8 citations — click to expand
[1] C1: Instruction set simulators are a major application mechanism for pre-silicon software development and enable software simulation before manufacture or design completion. Generating an Efficient Instruction Set Simulator from a Complete Property Suite
[2] C2: Gate-level simulation can provide cycle-accurate results but is typically too slow for in-depth software testing and cannot be used in early phases when only the ISA exists. Generating an Efficient Instruction Set Simulator from a Complete Property Suite
[3] C3: More abstract simulators are based on the ISA and can achieve performance of several million instructions per second. Generating an Efficient Instruction Set Simulator from a Complete Property Suite
[4] C4: Separating the ISS from the design requires reimplementation of the ISA and creates risk that the ISS is not synchronized with the design or ISA. Generating an Efficient Instruction Set Simulator from a Complete Property Suite
[5] C5: A discrepancy between the ISS and the design can cause software to work in the ISS but fail on chip. Generating an Efficient Instruction Set Simulator from a Complete Property Suite
[6] C6: An ISS can be automatically generated from a complete property suite used for formal processor verification, yielding a provably correct simulator with relatively small effort. Generating an Efficient Instruction Set Simulator from a Complete Property Suite
[7] C7: Formal methods can provide complete verification where properties uniquely capture behavior for each possible state and input combination, forming a functionally equivalent model after verification. Generating an Efficient Instruction Set Simulator from a Complete Property Suite
[8] C8: Reusing a complete property suite to generate an ISS guarantees compliance with the ISA used for verification and, by construction, with the design. Generating an Efficient Instruction Set Simulator from a Complete Property Suite