{"abstract":"hi is true after comparing equal values.","category":"Instruction set emulation","checks":8,"contract":"Input [cond]. Evaluate the condition for all 16 flag states, ordered as NZCV from 0000 to 1111 (N is the most significant), returning 1/0. eq Z; ne !Z; cs C; cc !C; mi N; pl !N; vs V; vc !V; hi C and !Z; ls !C or Z; ge N==V; lt N!=V; gt !Z and N==V; le Z or N!=V; al always. Carry here is set when an unsigned subtraction did not borrow.","evaluation_group":"w2-instruction-set-emulation-condition-codes","failed_approach":"Borrowing the carry-clear rule from borrow-style ISAs inverts the carry test.","family":"w2-instruction-set-emulation-condition-codes-unsigned-higher","id":"FA-89516","implementations":{"attempt":{"sha256":"47ff282da053bd64c274ee7beb2494f0f12ffaf8d76c2266d8f47a51aad36a75","source":"\"\"\"Failure Map reference implementation. Python standard library only.\"\"\"\nimport json\n\nN = 1\nobservations = []\ndef solve(*args):\n    cond = args[0]\n    res = []\n    for bits in range(16):\n        n_, z, c, v = bits >> 3 & 1, bits >> 2 & 1, bits >> 1 & 1, bits & 1\n        table = {'eq': z == 1, 'ne': z == 0, 'cs': c == 1, 'cc': c == 0, 'mi': n_ == 1, 'pl': n_ == 0,\n                 'vs': v == 1, 'vc': v == 0, 'hi': c == 0 and z == 0, 'ls': c == 0 or z == 1,\n                 'ge': n_ == v, 'lt': n_ != v, 'gt': z == 0 and n_ == v, 'le': z == 1 or n_ != v, 'al': True}\n        res.append(int(table[cond]))\n    return res\ndef check(label, actual, expected):\n    observations.append({\"check\": label, \"actual\": actual, \"expected\": expected, \"passed\": actual == expected})\nfixtures = [[('condition hi over all flags', ['hi'], [0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0]), ('condition ls over all flags', ['ls'], [1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1]), ('condition ge over all flags', ['ge'], [1, 0, 1, 0, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1, 0, 1]), ('condition gt over all flags', ['gt'], [1, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0]), ('condition le over all flags', ['le'], [0, 1, 0, 1, 1, 1, 1, 1, 1, 0, 1, 0, 1, 1, 1, 1]), ('condition eq over all flags', ['eq'], [0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1]), ('condition ne over all flags', ['ne'], [1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0]), ('condition cs over all flags', ['cs'], [0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1])], [('condition hi over all flags', ['hi'], [0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0]), ('condition ls over all flags', ['ls'], [1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1]), ('condition ge over all flags', ['ge'], [1, 0, 1, 0, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1, 0, 1]), ('condition gt over all flags', ['gt'], [1, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0]), ('condition le over all flags', ['le'], [0, 1, 0, 1, 1, 1, 1, 1, 1, 0, 1, 0, 1, 1, 1, 1]), ('condition ne over all flags', ['ne'], [1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0]), ('condition cs over all flags', ['cs'], [0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1]), ('condition cc over all flags', ['cc'], [1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0])], [('condition hi over all flags', ['hi'], [0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0]), ('condition ls over all flags', ['ls'], [1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1]), ('condition ge over all flags', ['ge'], [1, 0, 1, 0, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1, 0, 1]), ('condition gt over all flags', ['gt'], [1, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0]), ('condition le over all flags', ['le'], [0, 1, 0, 1, 1, 1, 1, 1, 1, 0, 1, 0, 1, 1, 1, 1]), ('condition cs over all flags', ['cs'], [0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1]), ('condition cc over all flags', ['cc'], [1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0]), ('condition mi over all flags', ['mi'], [0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1])], [('condition hi over all flags', ['hi'], [0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0]), ('condition ls over all flags', ['ls'], [1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1]), ('condition ge over all flags', ['ge'], [1, 0, 1, 0, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1, 0, 1]), ('condition gt over all flags', ['gt'], [1, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0]), ('condition le over all flags', ['le'], [0, 1, 0, 1, 1, 1, 1, 1, 1, 0, 1, 0, 1, 1, 1, 1]), ('condition cc over all flags', ['cc'], [1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0]), ('condition mi over all flags', ['mi'], [0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1]), ('condition pl over all flags', ['pl'], [1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0])], [('condition hi over all flags', ['hi'], [0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0]), ('condition ls over all flags', ['ls'], [1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1]), ('condition ge over all flags', ['ge'], [1, 0, 1, 0, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1, 0, 1]), ('condition gt over all flags', ['gt'], [1, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0]), ('condition le over all flags', ['le'], [0, 1, 0, 1, 1, 1, 1, 1, 1, 0, 1, 0, 1, 1, 1, 1]), ('condition mi over all flags', ['mi'], [0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1]), ('condition pl over all flags', ['pl'], [1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0]), ('condition vs over all flags', ['vs'], [0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1])]]\nfor label, args, expected in fixtures[N-1]:\n    check(label, solve(*args), expected)\nprint(json.dumps({\"observations\": observations, \"passed\": all(x[\"passed\"] for x in observations)}, ensure_ascii=False))\nraise SystemExit(0 if all(x[\"passed\"] for x in observations) else 1)\n"},"broken":{"sha256":"7d5e8d607dec68f6dc990600beeb19fe3a8247f28f844202a93717a3a6ee7b86","source":"\"\"\"Failure Map reference implementation. Python standard library only.\"\"\"\nimport json\n\nN = 1\nobservations = []\ndef solve(*args):\n    cond = args[0]\n    res = []\n    for bits in range(16):\n        n_, z, c, v = bits >> 3 & 1, bits >> 2 & 1, bits >> 1 & 1, bits & 1\n        table = {'eq': z == 1, 'ne': z == 0, 'cs': c == 1, 'cc': c == 0, 'mi': n_ == 1, 'pl': n_ == 0,\n                 'vs': v == 1, 'vc': v == 0, 'hi': c == 1, 'ls': c == 0 or z == 1,\n                 'ge': n_ == v, 'lt': n_ != v, 'gt': z == 0 and n_ == v, 'le': z == 1 or n_ != v, 'al': True}\n        res.append(int(table[cond]))\n    return res\ndef check(label, actual, expected):\n    observations.append({\"check\": label, \"actual\": actual, \"expected\": expected, \"passed\": actual == expected})\nfixtures = [[('condition hi over all flags', ['hi'], [0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0]), ('condition ls over all flags', ['ls'], [1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1]), ('condition ge over all flags', ['ge'], [1, 0, 1, 0, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1, 0, 1]), ('condition gt over all flags', ['gt'], [1, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0]), ('condition le over all flags', ['le'], [0, 1, 0, 1, 1, 1, 1, 1, 1, 0, 1, 0, 1, 1, 1, 1]), ('condition eq over all flags', ['eq'], [0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1]), ('condition ne over all flags', ['ne'], [1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0]), ('condition cs over all flags', ['cs'], [0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1])], [('condition hi over all flags', ['hi'], [0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0]), ('condition ls over all flags', ['ls'], [1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1]), ('condition ge over all flags', ['ge'], [1, 0, 1, 0, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1, 0, 1]), ('condition gt over all flags', ['gt'], [1, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0]), ('condition le over all flags', ['le'], [0, 1, 0, 1, 1, 1, 1, 1, 1, 0, 1, 0, 1, 1, 1, 1]), ('condition ne over all flags', ['ne'], [1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0]), ('condition cs over all flags', ['cs'], [0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1]), ('condition cc over all flags', ['cc'], [1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0])], [('condition hi over all flags', ['hi'], [0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0]), ('condition ls over all flags', ['ls'], [1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1]), ('condition ge over all flags', ['ge'], [1, 0, 1, 0, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1, 0, 1]), ('condition gt over all flags', ['gt'], [1, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0]), ('condition le over all flags', ['le'], [0, 1, 0, 1, 1, 1, 1, 1, 1, 0, 1, 0, 1, 1, 1, 1]), ('condition cs over all flags', ['cs'], [0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1]), ('condition cc over all flags', ['cc'], [1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0]), ('condition mi over all flags', ['mi'], [0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1])], [('condition hi over all flags', ['hi'], [0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0]), ('condition ls over all flags', ['ls'], [1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1]), ('condition ge over all flags', ['ge'], [1, 0, 1, 0, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1, 0, 1]), ('condition gt over all flags', ['gt'], [1, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0]), ('condition le over all flags', ['le'], [0, 1, 0, 1, 1, 1, 1, 1, 1, 0, 1, 0, 1, 1, 1, 1]), ('condition cc over all flags', ['cc'], [1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0]), ('condition mi over all flags', ['mi'], [0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1]), ('condition pl over all flags', ['pl'], [1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0])], [('condition hi over all flags', ['hi'], [0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0]), ('condition ls over all flags', ['ls'], [1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1]), ('condition ge over all flags', ['ge'], [1, 0, 1, 0, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1, 0, 1]), ('condition gt over all flags', ['gt'], [1, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0]), ('condition le over all flags', ['le'], [0, 1, 0, 1, 1, 1, 1, 1, 1, 0, 1, 0, 1, 1, 1, 1]), ('condition mi over all flags', ['mi'], [0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1]), ('condition pl over all flags', ['pl'], [1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0]), ('condition vs over all flags', ['vs'], [0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1])]]\nfor label, args, expected in fixtures[N-1]:\n    check(label, solve(*args), expected)\nprint(json.dumps({\"observations\": observations, \"passed\": all(x[\"passed\"] for x in observations)}, ensure_ascii=False))\nraise SystemExit(0 if all(x[\"passed\"] for x in observations) else 1)\n"},"fixed":{"sha256":"b97ec3ad30db53d1ada33596162127663ab38d8d677e2d095c63e1c2a7c421e1","source":"\"\"\"Failure Map reference implementation. Python standard library only.\"\"\"\nimport json\n\nN = 1\nobservations = []\ndef solve(*args):\n    cond = args[0]\n    res = []\n    for bits in range(16):\n        n_, z, c, v = bits >> 3 & 1, bits >> 2 & 1, bits >> 1 & 1, bits & 1\n        table = {'eq': z == 1, 'ne': z == 0, 'cs': c == 1, 'cc': c == 0, 'mi': n_ == 1, 'pl': n_ == 0,\n                 'vs': v == 1, 'vc': v == 0, 'hi': c == 1 and z == 0, 'ls': c == 0 or z == 1,\n                 'ge': n_ == v, 'lt': n_ != v, 'gt': z == 0 and n_ == v, 'le': z == 1 or n_ != v, 'al': True}\n        res.append(int(table[cond]))\n    return res\ndef check(label, actual, expected):\n    observations.append({\"check\": label, \"actual\": actual, \"expected\": expected, \"passed\": actual == expected})\nfixtures = [[('condition hi over all flags', ['hi'], [0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0]), ('condition ls over all flags', ['ls'], [1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1]), ('condition ge over all flags', ['ge'], [1, 0, 1, 0, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1, 0, 1]), ('condition gt over all flags', ['gt'], [1, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0]), ('condition le over all flags', ['le'], [0, 1, 0, 1, 1, 1, 1, 1, 1, 0, 1, 0, 1, 1, 1, 1]), ('condition eq over all flags', ['eq'], [0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1]), ('condition ne over all flags', ['ne'], [1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0]), ('condition cs over all flags', ['cs'], [0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1])], [('condition hi over all flags', ['hi'], [0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0]), ('condition ls over all flags', ['ls'], [1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1]), ('condition ge over all flags', ['ge'], [1, 0, 1, 0, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1, 0, 1]), ('condition gt over all flags', ['gt'], [1, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0]), ('condition le over all flags', ['le'], [0, 1, 0, 1, 1, 1, 1, 1, 1, 0, 1, 0, 1, 1, 1, 1]), ('condition ne over all flags', ['ne'], [1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0]), ('condition cs over all flags', ['cs'], [0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1]), ('condition cc over all flags', ['cc'], [1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0])], [('condition hi over all flags', ['hi'], [0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0]), ('condition ls over all flags', ['ls'], [1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1]), ('condition ge over all flags', ['ge'], [1, 0, 1, 0, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1, 0, 1]), ('condition gt over all flags', ['gt'], [1, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0]), ('condition le over all flags', ['le'], [0, 1, 0, 1, 1, 1, 1, 1, 1, 0, 1, 0, 1, 1, 1, 1]), ('condition cs over all flags', ['cs'], [0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1]), ('condition cc over all flags', ['cc'], [1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0]), ('condition mi over all flags', ['mi'], [0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1])], [('condition hi over all flags', ['hi'], [0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0]), ('condition ls over all flags', ['ls'], [1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1]), ('condition ge over all flags', ['ge'], [1, 0, 1, 0, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1, 0, 1]), ('condition gt over all flags', ['gt'], [1, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0]), ('condition le over all flags', ['le'], [0, 1, 0, 1, 1, 1, 1, 1, 1, 0, 1, 0, 1, 1, 1, 1]), ('condition cc over all flags', ['cc'], [1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0]), ('condition mi over all flags', ['mi'], [0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1]), ('condition pl over all flags', ['pl'], [1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0])], [('condition hi over all flags', ['hi'], [0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0]), ('condition ls over all flags', ['ls'], [1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1]), ('condition ge over all flags', ['ge'], [1, 0, 1, 0, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1, 0, 1]), ('condition gt over all flags', ['gt'], [1, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0]), ('condition le over all flags', ['le'], [0, 1, 0, 1, 1, 1, 1, 1, 1, 0, 1, 0, 1, 1, 1, 1]), ('condition mi over all flags', ['mi'], [0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1]), ('condition pl over all flags', ['pl'], [1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0]), ('condition vs over all flags', ['vs'], [0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1])]]\nfor label, args, expected in fixtures[N-1]:\n    check(label, solve(*args), expected)\nprint(json.dumps({\"observations\": observations, \"passed\": all(x[\"passed\"] for x in observations)}, ensure_ascii=False))\nraise SystemExit(0 if all(x[\"passed\"] for x in observations) else 1)\n"}},"limitations":"A deterministic bounded teaching model of one emulator rule; the instruction semantics are a stipulated contract inspired by common ISAs and are not a claim of cycle-exact or architectural conformance. This reproducer isolates one failure mechanism. Results cover the supplied fixtures. Variants within a family share a test contract and should remain grouped when constructing evaluation splits. Related mechanisms with a shared evaluation_group must also remain together; these controlled models are not independent production incidents.","method":"Deterministic executable model with adversarial boundary fixtures.","provenance":{"created_by":"Failure Map","dependencies":"Python standard library","family":"w2-instruction-set-emulation-condition-codes-unsigned-higher","generated_at":"2026-09-29T14:51:18.102363+00:00","license":"CC0-1.0","python":"3.12.14","seed":1,"split":"open-access"},"relevance":"Predicated execution in ARM-style emulators depends on exact condition predicates; unsigned conditions are easily confused with ISAs where carry means borrow.","repair":"hi requires carry set and zero clear.","root_cause":"The hi predicate tests only carry.","sha256":"eb3f28980f183146f94c80b05611a039485de46250fd403164b50c8a4b65c2de","title":"Unsigned higher ignores the zero flag · case 01","variant":1,"variant_policy":"Five numbered records share a model and may reuse boundary fixtures.","verification":{"attempt":{"elapsed_ms":40.779,"exit_code":1,"observations":[{"actual":[1,1,0,0,0,0,0,0,1,1,0,0,0,0,0,0],"check":"condition hi over all flags","expected":[0,0,1,1,0,0,0,0,0,0,1,1,0,0,0,0],"passed":false},{"actual":[1,1,0,0,1,1,1,1,1,1,0,0,1,1,1,1],"check":"condition ls over all flags","expected":[1,1,0,0,1,1,1,1,1,1,0,0,1,1,1,1],"passed":true},{"actual":[1,0,1,0,1,0,1,0,0,1,0,1,0,1,0,1],"check":"condition ge over all flags","expected":[1,0,1,0,1,0,1,0,0,1,0,1,0,1,0,1],"passed":true},{"actual":[1,0,1,0,0,0,0,0,0,1,0,1,0,0,0,0],"check":"condition gt over all flags","expected":[1,0,1,0,0,0,0,0,0,1,0,1,0,0,0,0],"passed":true},{"actual":[0,1,0,1,1,1,1,1,1,0,1,0,1,1,1,1],"check":"condition le over all flags","expected":[0,1,0,1,1,1,1,1,1,0,1,0,1,1,1,1],"passed":true},{"actual":[0,0,0,0,1,1,1,1,0,0,0,0,1,1,1,1],"check":"condition eq over all flags","expected":[0,0,0,0,1,1,1,1,0,0,0,0,1,1,1,1],"passed":true},{"actual":[1,1,1,1,0,0,0,0,1,1,1,1,0,0,0,0],"check":"condition ne over all flags","expected":[1,1,1,1,0,0,0,0,1,1,1,1,0,0,0,0],"passed":true},{"actual":[0,0,1,1,0,0,1,1,0,0,1,1,0,0,1,1],"check":"condition cs over all flags","expected":[0,0,1,1,0,0,1,1,0,0,1,1,0,0,1,1],"passed":true}],"passed":false,"stderr":"","stdout":"{\"observations\": [{\"check\": \"condition hi over all flags\", \"actual\": [1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0], \"expected\": [0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0], \"passed\": false}, {\"check\": \"condition ls over all flags\", \"actual\": [1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1], \"expected\": [1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1], \"passed\": true}, {\"check\": \"condition ge over all flags\", \"actual\": [1, 0, 1, 0, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1, 0, 1], \"expected\": [1, 0, 1, 0, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1, 0, 1], \"passed\": true}, {\"check\": \"condition gt over all flags\", \"actual\": [1, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0], \"expected\": [1, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0], \"passed\": true}, {\"check\": \"condition le over all flags\", \"actual\": [0, 1, 0, 1, 1, 1, 1, 1, 1, 0, 1, 0, 1, 1, 1, 1], \"expected\": [0, 1, 0, 1, 1, 1, 1, 1, 1, 0, 1, 0, 1, 1, 1, 1], \"passed\": true}, {\"check\": \"condition eq over all flags\", \"actual\": [0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1], \"expected\": [0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1], \"passed\": true}, {\"check\": \"condition ne over all flags\", \"actual\": [1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0], \"expected\": [1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0], \"passed\": true}, {\"check\": \"condition cs over all flags\", \"actual\": [0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1], \"expected\": [0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1], \"passed\": true}], \"passed\": false}\n"},"broken":{"elapsed_ms":40.99,"exit_code":1,"observations":[{"actual":[0,0,1,1,0,0,1,1,0,0,1,1,0,0,1,1],"check":"condition hi over all flags","expected":[0,0,1,1,0,0,0,0,0,0,1,1,0,0,0,0],"passed":false},{"actual":[1,1,0,0,1,1,1,1,1,1,0,0,1,1,1,1],"check":"condition ls over all flags","expected":[1,1,0,0,1,1,1,1,1,1,0,0,1,1,1,1],"passed":true},{"actual":[1,0,1,0,1,0,1,0,0,1,0,1,0,1,0,1],"check":"condition ge over all flags","expected":[1,0,1,0,1,0,1,0,0,1,0,1,0,1,0,1],"passed":true},{"actual":[1,0,1,0,0,0,0,0,0,1,0,1,0,0,0,0],"check":"condition gt over all flags","expected":[1,0,1,0,0,0,0,0,0,1,0,1,0,0,0,0],"passed":true},{"actual":[0,1,0,1,1,1,1,1,1,0,1,0,1,1,1,1],"check":"condition le over all flags","expected":[0,1,0,1,1,1,1,1,1,0,1,0,1,1,1,1],"passed":true},{"actual":[0,0,0,0,1,1,1,1,0,0,0,0,1,1,1,1],"check":"condition eq over all flags","expected":[0,0,0,0,1,1,1,1,0,0,0,0,1,1,1,1],"passed":true},{"actual":[1,1,1,1,0,0,0,0,1,1,1,1,0,0,0,0],"check":"condition ne over all 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flags","expected":[0,0,1,1,0,0,1,1,0,0,1,1,0,0,1,1],"passed":true}],"passed":true,"stderr":"","stdout":"{\"observations\": [{\"check\": \"condition hi over all flags\", \"actual\": [0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0], \"expected\": [0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0], \"passed\": true}, {\"check\": \"condition ls over all flags\", \"actual\": [1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1], \"expected\": [1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1], \"passed\": true}, {\"check\": \"condition ge over all flags\", \"actual\": [1, 0, 1, 0, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1, 0, 1], \"expected\": [1, 0, 1, 0, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1, 0, 1], \"passed\": true}, {\"check\": \"condition gt over all flags\", \"actual\": [1, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0], \"expected\": [1, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0], \"passed\": true}, {\"check\": \"condition le over all flags\", \"actual\": [0, 1, 0, 1, 1, 1, 1, 1, 1, 0, 1, 0, 1, 1, 1, 1], 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