{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8516229","patent":{"patent_number":"US-8516229","title":"Two pass test case generation using self-modifying instruction replacement","assignee":null,"inventors":[],"filing_date":"2010-02-05T00:00:00.000Z","publication_date":"2013-08-20T00:00:00.000Z","cpc_codes":["G06F","G06F","G06F"],"num_claims":20,"abstract":"A test code generation technique that replaces instructions having a machine state dependent result with special redirection instructions provides generation of test code in which state dependent execution choices are made without a state model. Redirection instructions cause execution of a handler than examines the machine state and replaces the redirection instruction with a replacement instruction having a desired result resolved in accordance with the current machine state. The instructions that are replaced may be conditional branch instructions and the result a desired execution path. The examination of the machine state permits determination of a branch condition for the replacement instruction so that the next pass of the test code executes along the desired path. Alternatively, the handler can execute a jump to the branch instruction, causing immediate execution of the desired branch path. The re-direction instructions may be illegal instructions, which cause execution of an interrupt handler that performs the replacement."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Two pass test case generation using self-modifying instruction replacement","description":"A test code generation technique that replaces instructions having a machine state dependent result with special redirection instructions provides generation of test code in which state dependent exec","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8516229","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-8516229","citation_suggestion":"Patentable. \"Two pass test case generation using self-modifying instruction replacement\" (US-8516229). https://patentable.app/patents/US-8516229","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8516229","json":"https://patentable.app/api/llm-context/US-8516229","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T04:22:41.620Z"}