{"id":1545,"date":"2017-09-19T16:36:58","date_gmt":"2017-09-19T08:36:58","guid":{"rendered":"http:\/\/www.vttbga.com\/?p=1545"},"modified":"2017-09-19T10:32:25","modified_gmt":"2017-09-19T02:32:25","slug":"powerpc%e5%a4%84%e7%90%86%e5%99%a8%e5%bc%80%e5%8f%91%e5%87%ba%e7%a8%b3%e5%ae%9a%e5%92%8c%e6%98%93%e7%94%a8%e5%8f%af%e9%9d%a0%e7%9a%84%e4%bb%bf%e7%9c%9f%e8%b0%83%e8%af%95%e5%b9%b3%e5%8f%b0","status":"publish","type":"post","link":"http:\/\/www.vttbga.com\/news\/1545.html","title":{"rendered":"Powerpc\u5904\u7406\u5668\u5f00\u53d1\u51fa\u7a33\u5b9a\u548c\u6613\u7528\u53ef\u9760\u7684\u4eff\u771f\u8c03\u8bd5\u5e73\u53f0"},"content":{"rendered":"

\u3000\u3000PowerPC( MPC8270) \u5904\u7406\u5668\u662f\u4e00\u6b3e\u6613\u7528\u3001\u7a33\u5b9a\u3001\u53ef\u9760\u7684\u4eff\u771f\u8c03\u8bd5\u5e73\u53f0<\/strong>\u3002\u9488\u5bf9PowerPC\u4f53\u7cfb\u7ed3\u6784\uff0c\u6784\u5efa\u51fa\u4e00\u5957\u5b8c\u6574\u7684\u5168\u7cfb\u7edf\u6a21\u62df\u4eff\u771f\u5e73\u53f0\uff0c\u5e76\u91cd\u70b9\u9610\u8ff0\u4e86ELF\u89e3\u6790\u3001\u6307\u4ee4\u96c6\u89e3\u6790\u3001\u865a\u62df MMU \u548c \u65f6\u949f\u4e2d\u65ad\u6a21\u5757\u7684\u5b9e\u73b0\u65b9\u6cd5\u3002<\/p>\n

\u3000\u3000\u5d4c\u5165\u5f0f\u9886\u57df\u4e0d\u65ad\u589e\u5927\u7684\u5e94\u7528\u9700\u6c42\uff0c\u800c\u4f20\u7edf\u7684\u5d4c\u5165\u5f0f\u8f6f\u4ef6\u5f80\u5f80\u9700\u8981\u7b49\u5f85\u786c\u4ef6\u5e73\u53f0\u5236\u4f5c\u5b8c\u6210\u540e\u624d\u53ef\u4ee5\u8fdb\u884c\u8c03\u8bd5\u3001\u5f00\u53d1\uff0c\u8fd9\u6781\u5927\u7684\u5ef6\u8fdf\u4e86\u4ea7\u54c1\u7684\u7814\u53d1\u5468\u671f\uff0c\u5e76\u4e14\u5728\u5b9e\u9645\u786c\u4ef6\u5e73\u53f0\u4e0a\u8c03\u8bd5\u8f6f\u4ef6\u4e5f\u5177\u6709\u4e00\u5b9a\u96be\u5ea6\u3002\u6240\u4ee5\uff0c\u57fa\u4e8e\u8f6f\u4ef6\u73af\u5883\u5f00\u53d1\u4e00\u5957\u53ef\u4ee5\u4eff\u771f\u786c\u4ef6\u5e73\u53f0\u7684\u7cfb\u7edf( \u5373\u865a\u62df\u673a)\u662f\u5341\u5206\u5fc5\u8981\u7684\u3002\u865a\u62df\u673a( Virtual Machine) \u7cfb\u7edf\u5b9e\u9645\u4e0a\u662f\u771f\u5b9e\u786c\u4ef6\u5e73\u53f0\u7684\u4e00\u4e2a\u8f6f\u4ef6\u62bd\u8c61\u3002\u901a\u8fc7\u8fd9\u91cc\u6211\u4eec\u5c31\u53ef\u4ee5\u770b\u51faBGA\u82af\u7247\u8fd4\u4fee\u884c\u4e1a\u53c8\u5c06\u8fce\u6765\u4e00\u6b21\u65b0\u7684\u6d17\u793c\uff0c\u5bf9\u4e8eBGA\u8fd4\u4fee\u53f0<\/a><\/strong>\u7684\u5236\u9020\u8981\u6c42\u66f4\u9ad8\u4e86\u3002<\/p>\n

\u3000\u3000\"Powerpc\u5904\u7406\u5668\u5f00\u53d1\u51fa\u7a33\u5b9a\u548c\u6613\u7528\u53ef\u9760\u7684\u4eff\u771f\u8c03\u8bd5\u5e73\u53f0\"<\/p>\n

\u3000\u3000\u5b83\u4ee5\u4e00\u4e2a\u666e\u901a\u7684\u5e94\u7528\u7a0b \u5e8f\u8fd0\u884c\u5728\u5bbf\u4e3b\u673a\u7684\u64cd\u4f5c\u7cfb\u7edf\u4e4b\u4e0a\uff0c\u5b83\u5c06\u76ee\u6807\u5e73\u53f0\u7684 \u786c\u4ef6\u884c\u4e3a\u62bd\u8c61\u4e3a\u5bbf\u4e3b\u673a\u7684\u8f6f\u4ef6\u884c\u4e3a\uff0c\u4ece\u800c\u8fbe\u5230\u6a21\u62df\u7684\u6548\u679c\uff0c\u8f6f\u4ef6\u67b6\u6784\u3002PowerPC\u4f53\u7cfb\u7ed3\u6784\u5728\u5d4c\u5165\u5f0f\u9886\u57df\u6709\u7740\u5e7f\u6cdb\u7684\u5e94\u7528\u548c\u5353\u8d8a\u7684\u8868\u73b0\uff0c\u6784\u5efa\u4e00\u4e2a\u9488\u5bf9\u5b83\u7684\u4eff\u771f\u8c03\u8bd5\u7cfb\u7edf\u662f\u5341\u5206\u5fc5\u8981\u7684\u3002<\/p>\n

\u3000\u3000\u6240\u4ee5\u672c\u6587\u4ee5PowerPC\u4f53\u7cfb\u7ed3\u6784\u4e3a\u4eff\u771f\u76ee\u6807\uff0c\u5728X86\u4f53\u7cfb\u7ed3\u6784\u7684PC\u673a\u4e0a\u6784\u5efa\u4e00\u4e2a\u5168\u7cfb\u7edf\u865a\u62df\u5316\u8c03\u8bd5\u5e73\u53f0\u3002 1\u3001\u865a\u62df\u5e73\u53f0\u603b\u4f53\u8bbe\u8ba1 1. 1 \u5e73\u53f0\u6574\u4f53\u8bbe\u8ba1\u672c\u4eff\u771f\u5e73\u53f0\u4e3b\u8981\u662f\u9488\u5bf9MPC8270\u8fd9\u4e00\u6b3e\u9ad8\u6027\u80fd\u3001\u4f4e\u529f\u801732 \u4f4d\u8d85\u6807\u91cfRISC\u5fae\u5904\u7406\u5668\u3002\u5176\u662fPower-QUICC TM II\u65cf\u7684\u4e00\u6b3eCPU\uff0c\u4f7f\u7528\u4e86E603\u7684\u6838\u5fc3\u5de5\u4f5c\u9891\u7387\u6700\u9ad8\u53ef\u8fbe450MHz\uff0c\u62e5\u6709\u72ec\u7acb\u768416k\u6570\u636e\u548c\u7a0b\u5e8f cache\uff0c\u4ee5\u53ca\u72ec\u7acb\u7684 DMMU \u548c IMMU\u3002
\n\"\u591a\u63a5\u53e3Powerpc\u5904\u7406\u5668\"
\n\u3000\u3000\u62e5\u6709\u591a\u79cd\u53ef\u5b9a\u5236\u63a5\u53e3\uff0c\u5e7f\u6cdb\u5e94\u7528\u4e8e\u7f51\u7edc\u4ea4\u6362\u673a\u548c\u5de5\u4e1a\u63a7\u5236\u6a21\u5757\u4e2d\u3002 \u865a\u62df\u673a\u7cfb\u7edf\u6846\u67b6\u56fe\u6574\u4e2a\u4eff\u771f\u5e73\u53f0\u6838\u5fc3\u529f\u80fd\u5c31\u662f\u5728\u4e00\u53f0X86\u67b6\u6784\u7684\u673a\u5668\u4e0a\uff0c\u4eff\u771f\u4e00\u4e2aPowerPC\u5e73\u53f0\uff0c\u53ef\u4ee5\u5982\u771f\u5b9e\u7684\u786c\u4ef6\u5e73\u53f0\u4e00\u6837\u52a0\u8f7d\u8fd0\u884c\u76f8\u5e94\u7684PowerPC\u7684\u53ef\u6267\u884c\u6587\u4ef6\uff0c\u5e76\u63d0\u4f9b\u66f4\u65b9\u4fbf\u7684\u8c03\u8bd5\u63a5\u53e3\u3002<\/p>\n

\u3000\u3000MPC8270 \u8f6f\u4ef6\u4eff\u771f\u5e73\u53f0\u4e3b\u8981\u5206\u4e3a\u4e09\u5c42\uff0c\u6574\u4f53\u67b6 \u6784\u5982\u56fe 2 \u6240\u793a: 1) \u76ee\u6807\u5c42: \u76ee\u6807 PowerPC \u5e73\u53f0\u4e0a\u7684\u8fd0\u884c\u73af\u5883; \u533a\u8fdb\u884c\u8bfb\u5199\u64cd\u4f5c\u3002\u5df2\u8fbe\u5230\u8c03\u8bd5\u7684\u76ee\u7684\u3002<\/p>\n

\u3000\u3000PowerPC \u4f53\u7cfb\u7ed3\u6784\u6620\u5c04\u5355\u5143: \u6b64\u5355\u5143\u7ef4\u62a4\u4e86 \u6e90\u4f53\u7cfb\u7ed3\u6784\u5bc4\u5b58\u5668\u6620\u5c04\u8868\uff0c\u4e3b\u8981\u7528\u4e8e\u89e3\u91ca\u6267\u884c\u548c\u7ef4 \u62a4 PowerPC \u4f53\u7cfb\u7ed3\u6784\u7684\u5404\u4e2a\u5bc4\u5b58\u5668\u5728\u8fd0\u884c\u65f6\u72b6\u6001\u3002<\/p>\n

\u3000\u3000\u865a\u62df\u5316\u5c42: \u6574\u4e2a\u7cfb\u7edf\u7684\u6838\u5fc3\uff0c\u5373\u8fd0\u884c\u5728\u4e3b\u673a \u7cfb\u7edf\u7684\u865a\u62df\u673a\u8fdb\u7a0b;\u5e73\u53f0\u5de5\u4f5c\u6d41\u7a0b PowerPC \u865a\u62df\u8c03\u8bd5\u5e73\u53f0\u9996\u5148\u5206\u6790\u5e26\u6709\u8c03\u8bd5\u4fe1\u606f \u4e3b\u673a\u5c42: \u5b9e\u9645\u5bbf\u4e3b\u673a\u7684\u8fd0\u884c\u73af\u5883\u3002
\n\"Powerpc\u5904\u7406\u5668\u8fd0\u884c\u73af\u5883\"
\n\u3000\u3000\u5206\u6790\u51fa\u884c\u53f7\u8868( \u5373\u6267\u884c\u6307\u4ee4\u5bf9\u5e94\u7684\u7a0b \u5e8f\u5730\u5740)\uff0c\u53d8\u91cf\u5730\u5740\u4ee5\u53ca\u5bf9\u5e94\u7684\u53ef\u6267\u884c\u6587\u4ef6\u3002\u800c\u540e \u6211\u4eec\u5c06\u5206\u6790\u597d\u7684\u53ef\u6267\u884c\u52a0\u8f7d\u8fdb\u865a\u62df\u673a\u4e2d\u3002\u800c\u540e\u865a \u62df\u673a\u5f00\u59cb\u6267\u884c\u52a0\u8f7d\u8fdb\u6765\u7684\u53ef\u6267\u884c\u6587\u4ef6\u3002\u5176\u5185\u90e8\u4ee5 \u4e00\u79cd busyloop \u7684\u65b9\u5f0f\u5b9e\u73b0\uff0c\u9996\u5148\u68c0\u67e5\u662f\u5426\u6709\u5916\u90e8\u7684 \u56de\u8c03\u51fd\u6570\uff0c\u5916\u90e8\u53ef\u4ee5\u901a\u8fc7\u6b64\u63a5\u53e3\u5b8c\u6210\u4e0e\u865a\u62df\u673a\u7684\u901a \u4fe1\u3002\u800c\u540e\u68c0\u67e5\u5c06\u8981\u6267\u884c\u6307\u4ee4\u662f\u5426\u6709\u65ad\u70b9\uff0c\u5982\u679c\u6709\u65ad \u70b9\u5219\u6682\u505c\u8fd0\u884c\uff0c\u63a7\u5236\u6743\u4ea4\u7531\u4e0a\u5c42\u7684\u56fe\u5f62\u754c\u9762\u64cd\u4f5c\u3002 \u6700\u540e\u6267\u884c interpret \u5b8c\u6210\u53d6\u5740\u3001\u8bd1\u7801\u4e0e\u6267\u884c\u3002<\/p>\n

\u3000\u3000<\/p>\n

\u4eff\u771f\u5e73\u53f0\u603b\u4f53\u7ed3\u6784\u5404\u4e2a\u6a21\u5757\u4e3b\u8981\u529f\u80fd\u5982\u4e0b:<\/h2>\n

\u3000\u30001. \u865a\u62df\u673a\u603b\u63a7\u6a21\u5757: \u8d1f\u8d23\u6574\u4e2a\u7cfb\u7edf\u7684\u521d\u59cb\u5316\uff0c \u865a\u62df\u673a\u7684\u7a7a\u95f4\u7533\u8bf7\u4ee5\u53ca\u91ca\u653e\uff0c\u534f\u8c03\u5404\u4e2a\u7684\u6d88\u606f\u4f20\u9012\u3002<\/p>\n

\u3000\u30002.ELF \u6587\u4ef6\u5206\u6790\u4e0e\u52a0\u8f7d\u6a21\u5757: \u5206\u6790\u53ef\u6267\u884c\u6587\u4ef6 \u7684 ELF \u683c\u5f0f\uff0c\u5206\u6790\u51fa\u76f8\u5e94\u7684\u884c\u53f7\uff0c\u7b26\u53f7\u4fe1\u606f\u3002\u8bc6\u522b \u76f8\u5e94\u7684\u6570\u636e\u6bb5\u3001\u4ee3\u7801\u6bb5\u7b49\u4fe1\u606f\u3002\u5e76\u52a0\u8f7d\u53ef\u6267\u884c\u6587\u4ef6 \u5230\u76f8\u5e94\u7684\u5185\u5b58\u533a\u57df\u3002<\/p>\n

\u3000\u30003.MMU \u4eff\u771f\u6a21\u5757: \u4eff\u771f\u5b9e\u9645\u786c\u4ef6\u7684 DMMU \u548c IMMU\uff0c\u5206\u522b\u7528\u4e8e\u6570\u636e\u548c\u6307\u4ee4\u7684\u5730\u5740\u8f6c\u6362\uff0c\u7531\u865a\u62df\u5730 \u5740\u7ffb\u8bd1\u4e3a\u7269\u7406\u5730\u5740\u3002<\/p>\n

\u3000\u30004. \u89e3\u91ca\u5668\u6a21\u5757: \u5373\u5c06\u76f8\u5e94\u6307\u4ee4 PPC \u6307\u4ee4\u7ffb\u8bd1 \u4e3a x86 \u6307\u4ee4\u6267\u884c\u7684\u6a21\u5757\u3002\u8fd9\u91cc\u4e3a\u4e86\u8fbe\u5230\u4e0e\u771f\u5b9e\u7cfb\u7edf \u6267\u884c\u5b8c\u5168\u4e00\u81f4\uff0c\u9009\u53d6\u4e86\u7ecf\u5178\u7684\u5904\u7406\u5668\u7684\u53d6\u5740-\u8bd1\u7801- \u6267\u884c\u5faa\u73af\u3002\u8fd9\u6837\u53ef\u4ee5\u4fdd\u8bc1\u5728\u4efb\u4f55\u6307\u4ee4\u5904\u4e0b\u65ad\u70b9\u90fd \u53ef\u4ee5\u4e0e\u771f\u5b9e\u7cfb\u7edf\u7684\u6267\u884c\u7ed3\u679c\u4e00\u81f4\u3002<\/p>\n

\u3000\u30005.\u8c03\u8bd5\u63a5\u53e3\u6a21\u5757: \u4e3b\u8981\u8d1f\u8d23\u5916\u90e8\u4e0e\u865a\u62df\u673a\u7684\u901a \u4fe1\uff0c\u53ef\u4ee5\u5411\u865a\u62df\u7cfb\u7edf\u4e0b\u65ad\u70b9\u3001\u8bbe\u7f6e\u76d1\u89c6\u70b9\u3002\u53ef\u4ee5\u5728 \u6682\u505c\u865a\u62df\u673a\u6267\u884c\u7684\u72b6\u6001\u4e0b\uff0c\u5bf9\u865a\u62df\u673a\u7684\u6570\u636e\u6216\u7a0b\u5e8f \u56fe 3 \u5e73\u53f0\u5de5\u4f5c\u6d41\u7a0b \uff0c 7692 \u79d1\u5b66\u6280\u672f\u4e0e\u5de5\u7a0b11\u5377\u4f5c\u6570\uff0c\u4ee5\u53ca\u4e00\u4e2a\u76ee\u7684\u64cd\u4f5c\u6570\u3002
\n\"\u4eff\u771f\u5e73\u53f0\u603b\u4f53\u7ed3\u6784\u5404\u4e2a\u6a21\u5757\u4e3b\u8981\u529f\u80fd\"
\n\u3000\u3000\u8fd9\u4e00\u6307\u4ee4\u683c\u5f0f\u7684\u4e00\u4e9b \u53d8\u79cd\u4f7f\u7528\u90e8\u5206\u76ee\u6807\u548c\u6e90\u5bc4\u5b58\u5668\u64cd\u4f5c\u6570\u8bf4\u660e\u7b26\u4f5c\u4e3a \u7acb\u5373\u5b57\u6bb5\u6216\u4f5c\u4e3a\u6269\u5c55\u7684\u64cd\u4f5c\u7801\u3002Rc \u6807\u8bb0\u662f\u5426\u8bb0\u5f55 \u72b6\u6001\u5bc4\u5b58\u5668\u3002<\/p>\n

\u3000\u3000<\/p>\n

\u4eff\u771f\u5e73\u53f0\u6a21\u5757\u5b9e\u73b0<\/h2>\n

\u3000\u30001.\u6307\u4ee4\u89e3\u91ca PowerPC \u505a\u4e3a\u4e00\u6b3e RISC \u5904\u7406\u5668\uff0c\u6240\u6709\u6307\u4ee4\u7684\u7f16 \u7801\u957f\u5ea6\u90fd\u662f 32 \u4f4d\u3002PowerPC \u7684\u4f4d\u7f16\u53f7\u65b9\u5f0f\u6bd4\u8f83\u7279 \u522b: \u7b2c 0 \u4f4d\u662f\u6700\u91cd\u8981\u7684\u4f4d\uff0c\u7b2c 31 \u4f4d\u662f\u6700\u4e0d\u91cd\u8981\u7684 \u4f4d\u3002\u6307\u4ee4\u9996\u5148\u7531\u4e00\u4e2a\u5b57\u6bb5\u4e2d\u8f83\u9ad8\u7684 6 \u4f4d\u8fdb\u884c\u89e3\u7801\uff0c \u8fd9 6 \u4f4d\u88ab\u79f0\u4e3a\u4e3b\u8981\u64cd\u4f5c\u7801( primary opcode) \u3002\u5176\u4f59 26 \u4f4d\u5305\u542b\u7684\u5b57\u6bb5\u5206\u522b\u662f\u64cd\u4f5c\u6570\u8bf4\u660e\u3001\u7acb\u5373( immedi- ate) \u64cd\u4f5c\u6570\u4ee5\u53ca\u6269\u5c55\u7684\u64cd\u4f5c\u7801( opcode) \uff0c\u800c\u4e14\u8fd9\u4e9b \u8fd8\u53ef\u80fd\u662f\u4fdd\u7559\u7684\u4f4d\u6216\u5b57\u6bb5\u3002<\/p>\n

\u3000\u3000<\/p>\n

PowerPC \u5b9a\u4e49\u7684\u57fa\u672c\u6307 \u4ee4\u683c\u5f0f\u6709\u5982\u4e0b\u51e0\u79cd:<\/h2>\n

\u3000\u30001. D-form \u6307\u4ee4\u683c\u5f0f \u6761\u4ef6\u8f6c\u79fb\u6307\u4ee4\u4f7f\u7528\u7684\u662f\u8fd9\u4e00\u6307\u4ee4\u683c\u5f0f\u3002BO \u6307 \u4ee4\u5b57\u6bb5\u6307\u5b9a\u4e86\u6761\u4ef6\u7684\u7c7b\u578b; BI \u6307\u4ee4\u5b57\u6bb5\u6307\u5b9a\u4e86\u4ee5\u54ea \u4e2a CR \u4f4d\u4f5c\u4e3a\u6761\u4ef6; BD \u5b57\u6bb5\u7528\u4f5c\u8f6c\u79fb\u4f4d\u7f6e\u3002AA \u4f4d \u6307\u5b9a\u4e86\u8f6c\u79fb\u662f\u7edd\u5bf9\u8f6c\u79fb\u8fd8\u662f\u76f8\u5bf9\u8f6c\u79fb\u3002LK \u4f4d\u6307\u5b9a \u4e86\u4e0b\u4e00\u4e2a\u987a\u5e8f\u6307\u4ee4\u7684\u5730\u5740\u662f\u5426\u4f5c\u4e3a\u5b50\u4f8b\u7a0b\u8c03\u7528\u7684 \u8fd4\u56de\u5730\u5740\u4fdd\u5b58\u5728\u94fe\u63a5\u5bc4\u5b58\u5668\u4e2d\u3002<\/p>\n

\u3000\u30002. D-form \u6307\u4ee4\u683c\u5f0f \u8fd9\u4e00\u6307\u4ee4\u683c\u5f0f\u63d0\u4f9b\u81f3\u591a\u4e24\u4e2a\u5bc4\u5b58\u5668\u4f5c\u4e3a\u6e90\u64cd\u4f5c\u6570 \u4e00\u4e2a\u7acb\u5373\u6e90\uff0c\u81f3\u591a\u4e24\u4e2a\u5bc4\u5b58\u5668\u4f5c\u4e3a\u76ee\u7684\u64cd\u4f5c\u6570\u3002\u8fd9\u4e00\u6307 \u4ee4\u683c\u5f0f\u7684\u4e00\u4e9b\u53d8\u79cd\u4f7f\u7528\u90e8\u5206\u76ee\u6807\u548c\u6e90\u5bc4\u5b58\u5668\u64cd\u4f5c\u6570\u8bf4 \u660e\u7b26\u4f5c\u4e3a\u7acb\u5373\u5b57\u6bb5\u6216\u4f5c\u4e3a\u6269\u5c55\u7684\u64cd\u4f5c\u7801\u3002<\/p>\n

\u3000\u30003.\u65e0\u6761\u4ef6\u8f6c\u79fb\u6307\u4ee4\u4f7f\u7528\u8fd9\u4e00\u6307\u4ee4\u683c\u5f0f\u3002\u7531\u4e8e\u662f \u65e0\u6761\u4ef6\u7684\uff0cBD \u683c\u5f0f\u4e2d\u7684 BO \u548c BI \u5b57\u6bb5\u6539\u53d8\u4e3a\u53e6\u5916 \u7684\u8f6c\u79fb\u4f4d\u7f6e\uff0c\u4ee5\u6784\u6210 LI \u6307\u4ee4\u5b57\u6bb5\u3002 \u540c BD \u683c\u5f0f\u4e00 \u6837\uff0c\u8fd9\u4e00\u6307\u4ee4\u683c\u5f0f\u4e5f\u652f\u6301 AA \u548c LK \u4f4d\u3002<\/p>\n

\u3000\u3000\u5bf9\u4e8e\u4e00\u4e2a\u771f\u5b9e\u7684\u5d4c\u5165\u5f0f\u7cfb\u7edf\uff0c\u6211\u4eec\u53ea\u9700\u628a\u53ef\u6267 \u884c\u7684\u4e8c\u8fdb\u5236\u6587\u4ef6\u70e7\u5f55\u8fdb\u76f8\u5e94\u7684\u5b58\u50a8\u5355\u5143\u5373\u53ef\u3002\u6211\u4eec\u7684\u865a\u62df\u8c03\u8bd5\u7cfb\u7edf\u4e3a\u4e86\u505a\u5230\u5bf9\u771f\u5b9e\u786c\u4ef6\u5e73\u53f0\u7684\u5b8c \u5168\u4eff\u771f\uff0c\u6211\u4eec\u7684\u6267\u884c\u6b65\u9aa4\u4e5f\u662f\u9075\u5faa\u786c\u4ef6\u6267\u884c\u6307\u4ee4\u7684\u7ecf\u5178\u6b65\u9aa4 : \u53d6\u5740\u3001\u8bd1\u7801\u3001\u6267\u884c\u3002<\/p>\n

\u3000\u3000D-form \u6307\u4ee4\u683c\u5f0f \u8fd9\u4e00\u6307\u4ee4\u683c\u5f0f\u63d0\u4f9b\u81f3\u591a\u4e24\u4e2a\u5bc4\u5b58\u5668\u4f5c\u4e3a\u6e90\u64cd \u4f5c\u6570\uff0c\u81f3\u591a\u4e24\u4e2a\u76ee\u7684\u64cd\u4f5c\u6570\u3002\u8fd9\u4e00\u6307\u4ee4\u683c\u5f0f\u7684\u4e00\u4e9b \u53d8\u79cd\u4f7f\u7528\u90e8\u5206\u76ee\u6807\u548c\u6e90\u5bc4\u5b58\u5668\u64cd\u4f5c\u6570\u8bf4\u660e\u7b26\u4f5c\u4e3a \u7acb\u5373\u5b57\u6bb5\u6216\u4f5c\u4e3a\u6269\u5c55\u7684\u64cd\u4f5c\u7801\u3002<\/p>\n

\u3000\u3000\u53d6\u5740: \u901a\u8fc7\u8bbf\u95ee\u5185\u5b58\u5f97\u5230 32 \u4f4d\u7684\u6307\u4ee4\u7801\u3002 \u8bd1\u7801: \u8bd1\u7801\u7684\u8fc7\u7a0b\u5b9e\u9645\u4e0a\u5c31\u662f\u627e\u5230\u76f8\u5e94\u6307\u4ee4<\/p>\n

\u3000\u3000A-form \u5bf9\u5e94\u7684\u5904\u7406\u51fd\u6570\u3002\u6211\u4eec\u6309\u7167\u6bcf\u6761\u6307\u4ee4\u7684 0 \u81f3 5 \u4f4d\u8fdb \u884c\u4e00\u6b21 hash \u64cd\u4f5c\uff0c\u5f97\u5230\u4e00\u4e2a\u5904\u7406\u51fd\u6570\u7684\u5165\u53e3\u3002\u5982\u679c \u6b64\u6307\u4ee4\u8fd8\u6709\u6269\u5c55\u64cd\u4f5c\u7801\u6216\u8005\u5176\u4ed6\u6807\u5fd7\u4f4d\uff0c\u6211\u4eec\u5728\u5904 \u7406\u51fd\u6570\u4e2d\u901a\u8fc7\u7b2c\u4e8c\u6b21 hash \u627e \u5230\u6700\u7ec8\u7684\u51fd\u6570\u5165\u53e3\u3002 \u5b9e\u8df5\u8868\u660e\uff0c\u8fd9\u79cd\u8bd1\u7801\u65b9\u5f0f\u6bd4\u6811\u5f62\u7684\u67e5\u627e\u66f4\u52a0\u8fc5\u901f\u3002<\/p>\n

\u3000\u3000\u8fd9\u4e00\u6307\u4ee4\u683c\u5f0f\u63d0\u4f9b\u81f3\u591a\u4e09\u4e2a\u5bc4\u5b58\u5668\u4f5c\u4e3a\u6e90\u64cd<\/p>\n

\u3000\u3000\u6267\u884c: \u8c03\u7528\u8bd1\u7801\u8fc7\u7a0b\u67e5\u627e\u5230\u7684\u5904\u7406\u51fd\u6570\u3002<\/strong><\/p>\n

\u3000\u3000debug_macinfo&. debug _pubtypes: \u5305\u542b\u5168\u5c40 \u5bf9\u8c61\u548c\u51fd\u6570\u7684\u67e5\u627e\u8868<\/p>\n

\u3000\u3000debug_ranges: DIE \u7684\u5f15\u7528\u5730\u5740\u533a\u95f4 7) . debug _ str: \u5305\u542b. debug _ info \u6bb5\u4e2d\u4f7f\u7528\u7684\u7b26 \u53f7\u8868\u3002<\/p>\n

\u3000\u3000\u91cc\u901a\u8fc7\u6307\u5411\u51fd\u6570\u7684\u6307\u9488\u4ee5\u5b9e\u73b0\u5bf9\u4e0a\u4e00\u5c42\u7a0b\u5e8f\u7684\u63a5 \u53e3\u4e00\u81f4\u3002<\/p>\n

\u3000\u30002. 2 ELF \u6587\u4ef6\u89e3\u6790 \u6700\u4e3a\u4e00\u4e2a\u8c03\u8bd5\u7cfb\u7edf\uff0c\u6700\u57fa\u672c\u7684\u529f\u80fd\u5c31\u662f\u5728\u51fd\u6570 \u4e2d\u8bbe\u7f6e\u65ad\u70b9\uff0c\u8ba9\u865a\u62df\u673a\u5728\u6267\u884c\u5230\u6709\u65ad\u70b9\u7684\u8bed\u53e5\u65f6\u6682 \u505c\uff0c\u4e3a\u4e86\u5b9e\u73b0\u8fd9\u4e2a\u529f\u80fd\uff0c\u8c03\u8bd5\u7cfb\u7edf\u5fc5\u987b\u77e5\u9053\u9ad8\u7ea7\u8bed \u8a00\u4e2d\u7684\u8bed\u53e5\u4e0e\u673a\u5668\u4ee3\u7801\u5730\u5740\u7684\u6620\u5c04\u5173\u7cfb\uff0c\u5373\u884c\u53f7\u8868 ( line number) ; \u5e76\u4e14\u9700\u8981\u77e5\u9053\u5404\u4e2a\u53d8\u91cf\u88ab\u5b58\u50a8\u7684\u5730 \u5740\uff0c\u4ee5\u8fbe\u5230\u5206\u6790\u6267\u884c\u72b6\u6001\u7684\u76ee\u7684\uff0c\u8fd9\u4fbf\u9700\u8981\u7b26\u53f7\u4fe1 \u606f\u3002<\/p>\n

\u3000\u3000\u8fd9\u4e9b\u4fe1\u606f\u88ab\u5c01\u88c5\u5728 ELF ( Executable and Link- 2. 3 \u65f6\u949f\u4e2d\u65ad\u7684\u5b9e\u73b0 \u65f6\u949f\u4e2d\u65ad\u662f\u5341\u5206\u91cd\u8981\u7684\u4e2d\u65ad\uff0c\u64cd\u4f5c\u7cfb\u7edf\u7684\u8fd0\u884c \u662f\u4f9d\u8d56\u65f6\u949f\u4e2d\u65ad\uff0c\u4f8b\u5982\u4efb\u52a1\u8c03\u5ea6\uff0c\u4ee5\u53ca\u4f17\u591a\u6709\u8d85\u65f6 \u7684\u51fd\u6570\u8c03\u7528\u3002\u5176\u76f8\u5173\u5bc4\u5b58\u5668\u662f\u6709: DEC \u548c TB ( Time Base) \u5bc4\u5b58\u5668\u3002<\/p>\n

\u3000\u3000\u5176\u4e2d TB \u662f\u4e00\u4e2a 64 \u4f4d\u5bc4\u5b58\u5668\uff0c\u7531 TBL \u548c TBU \u6784\u6210\uff0c\u5176\u4e2d TBL \u8868\u793a\u4f4e 32 \u4f4d\uff0cTBU \u8868\u793a\u9ad8 32 \u4f4d\u3002\u4ed6\u5728\u6bcf\u4e2a\u65f6\u949f\u5468\u671f\u540e\u81ea\u589e 1\u3002\u800c DEC \u5bc4\u5b58\u5668\u5df2 TB \u5bc4\u5b58\u5668\u81ea\u589e\u7684\u9891\u7387\u81ea\u51cf\u3002\u53ef\u4ee5\u901a\u8fc7\u6307\u4ee4 mfspr \u548c able Format ) \u683c \u5f0f \u6587 \u4ef6 \u4e2d\u3002 ELF \u6587 \u4ef6 \u683c \u5f0f \u6700 \u521d \u7531 UNIX \u7cfb\u7edf\u5b9e\u9a8c\u5ba4\u5f00\u53d1\uff0c\u76ee\u524d\u5df2\u6210\u4e3a 32 \u4f4d\u64cd\u4f5c\u7cfb\u7edf \u73af\u5883\u4e0b\u8f83\u4e3a\u901a\u7528\u7684\u53ef\u6267\u884c\u6587\u4ef6\u683c\u5f0f\u3002ELF \u6587\u4ef6\u4f5c\u7528 \u6709 2 \u4e2a:<\/p>\n

\u3000\u3000\u5176\u4e00\u4e3a\u6784\u5efa\u7a0b\u5e8f\uff0c\u4e3b\u8981\u4f53\u73b0\u5728\u8fde\u63a5\u8fc7\u7a0b\u4e2d\uff0c \u8fd9\u4e0e\u6211\u4eec\u7684\u8c03\u8bd5\u7cfb\u7edf\u65e0\u5173\u3002\u8fd9\u91cc\u4e3b\u8981\u5206\u6790\u7684\u662f\u7528 \u4e8e\u8fd0\u884c\u7a0b\u5e8f\u7684 ELF \u6587\u4ef6\uff0c\u5176\u5927\u4f53\u7ed3\u6784\u5982\u56fe 9 \u6240\u793a\u3002 mtspr \u8fdb\u884c\u8bfb\u5199\uff0c\u5f53\u5411 DEC \u4e2d\u5199\u5165\u4e00\u4e2a\u5927\u4e8e 0 \u7684\u503c\u65f6\uff0c \u5b83\u5c06\u5728\u4e0b\u4e00\u4e2a\u65f6\u949f\u5468\u671f\u540e\u81ea\u51cf 1\u3002\u5f53 DEC \u81ea\u51cf\u81f3 0 \u65f6\uff0c\u4fbf\u4f1a\u89e6\u53d1\u65f6\u949f\u4e2d\u65ad( \u9664\u975e MSR\u3014EE\u3015\u5c06\u5176\u5c4f\u853d) \u3002<\/p>\n

\u3000\u3000\u7531\u4e8e MPC8270 \u62e5\u6709\u4e71\u5e8f\u6267\u884c\u7684\u80fd\u529b\uff0c\u5e76\u4e14\u62e5\u6709 \u591a\u6761\u5e76\u884c\u7684\u6d41\u6c34\u7ebf\u548c\u6267\u884c\u5355\u5143\uff0c\u7531\u4e8e\u4eff\u771f\u8fd9\u4e9b\u64cd\u4f5c \u5bf9\u865a\u62df\u673a\u7684\u6027\u80fd\u5f71\u54cd\u6781\u5927\uff0c\u5e76\u4e14\u4ed6\u5bf9\u4e8e\u8c03\u7528\u6ca1\u6709\u5f88 \u5927\u7684\u597d\u5904\uff0c\u6211\u4eec\u8fd9\u91cc\u5c31\u7b80\u5316\u4e86\u65f6\u949f\u7684\u4eff\u771f\uff0cDEC \u503c \u65f6\u968f\u7740\u6307\u4ee4\u7684\u6267\u884c\u800c\u51cf\u5c11\u3002\u6211\u4eec\u5efa\u7acb\u4e00\u4e2a\u6570\u7ec4\u533a \u6765\u5b58\u50a8\u6bcf\u6761\u6307\u4ee4\u6267\u884c\u7684\u5468\u671f\uff0c\u7136\u540e\u5728\u6307\u4ee4\u6267\u884c\u540e DEC \u51cf\u5c11\u76f8\u5e94\u7684\u503c\u3002\u8fd9\u6837\u5bfc\u81f4\u4eff\u771f\u7684\u65f6\u95f4\u5e76\u4e0d\u5341 \u5206\u7cbe\u786e\u3002\u4f46\u7b80\u5355\u6613\u884c\uff0c\u53ef\u4ee5\u6ee1\u8db3\u5b9e\u9645\u5e94\u7528\u9700\u6c42\u3002<\/p>\n

\u3000\u3000MMU \u4eff\u771f\u6a21\u5757\u7684\u5b9e\u73b0 MMU \u5373 Memory Management Unit \u5b83\u662f CPU \u4e2d\u7528 \u6765\u7ba1\u7406\u865a\u62df\u5b58\u50a8\u5668\u3001\u7269\u7406\u5b58\u50a8\u5668\u7684\u63a7\u5236\u7ebf\u8def\uff0c\u540c\u65f6\u4e5f\u8d1f \u8d23\u865a\u62df\u5730\u5740\u6620\u5c04\u4e3a\u7269\u7406\u5730\u5740\uff0c\u4ee5\u53ca\u63d0\u4f9b\u786c\u4ef6\u673a\u5236\u7684\u5185 \u5b58\u8bbf\u95ee\u6388\u6743\uff0c\u662f\u652f\u6301\u4f17\u591a\u64cd\u4f5c\u7cfb\u7edf\u8fd0\u884c\u6240\u5fc5\u987b\u7684\u6a21\u5757\u3002 PowerPC \u5904\u7406\u5668\u7684 MMU \u662f\u5b8c\u5168\u652f\u6301\u6bb5\u9875\u5f0f\u7ba1 \u7406 \u7684\uff0c\u6574\u4f53\u7ed3\u6784\u5982\u56fe 10 \u6240\u793a\u3002<\/p>\n

\u3000\u3000\u5176\u4e2d\u6bb5\u5bc4\u5b58\u5668\u8d1f\u8d23\u5c06 \u6709\u6548\u5730\u5740\u7ffb\u8bd1\u4e3a\u5185\u90e8\u865a\u62df\u5730\u5740\uff0c\u9875\u8868\u8d1f\u8d23\u5c06\u865a\u62df\u5730 \u5740 \u7ffb\u8bd1\u4e3a\u7269\u7406\u5730\u5740\u3002\u73b0\u4ee3\u64cd\u4f5c\u7cfb\u7edf\u4e00\u822c\u5bf9\u5206\u6bb5\u652f \u6301\u8f83\u5f31\uff0c\u4e3b\u8981\u4f7f\u7528\u5206\u9875\u7684\u529f\u80fd\u3002 MMU \u67092 \u4e2a\u91cd\u8981\u7684\u6a21\u5757: \u56fe 9 ELF \u6587\u4ef6\u7ed3\u6784 \u6bb5\u4e3b\u8981\u63cf\u8ff0\u5404\u4e2a\u6bb5\u7684\u4fe1 \u606f\uff0c\u8fd9\u91cc\u6211\u4eec\u4e3b\u8981\u5173\u6ce8. text \u6bb5( \u6267\u884c\u6bb5) \uff0c\u548c\u4e00\u7cfb\u5217\u5305\u542b\u8c03\u8bd5\u4fe1\u606f\u7684. de- bug \u6bb5( \u5373 DWARF) \u3002 \u5728 ELF \u6587\u4ef6\u4e2d\u6240\u6709\u7684\u8c03\u8bd5\u4fe1\u606f\u90fd\u4ee5DWARF( De- bugging With Attributed Record Format ) \u683c\u5f0f\u7ec4\u7ec7\u8d77\u6765\uff0c DWARF \u6700\u57fa\u672c\u7684\u63cf\u8ff0\u4e2a\u4f53\u4e3a DIE( Debugging Information Entry) \u3002\u6bcf\u4e2a DIE \u90fd\u6709\u81ea\u5df1\u7684\u6807\u7b7e( \u5305\u542b\u7c7b\u578b\u548c\u4e00\u7cfb\u5217 \u5c5e\u6027) \u3002<\/p>\n

\u3000\u3000DIE \u4ee5\u513f\u5b50\u5144\u5f1f\u6811\u7684\u7ed3\u6784\u5b58\u50a8\uff0c\u5c5e\u6027\u503c\u53ef\u4ee5\u6307\u5411 \u5176\u4ed6\u7684DIE\u3002\u5176\u4e3b\u8981\u5305\u62ec\u4ee5\u4e0b\u51e0\u9879: 1) . debug_frame: \u542b\u6709\u8c03\u7528\u6808\u7684\u4fe1\u606f<\/p>\n

\u3000\u3000debug _ info: ( DIES) DWARF \u5305 \u542b \u7684 \u6838 \u5fc3 \u6570 \u636e 1) TLB( Translation Lookaside Buffer) \u9875\u8868\u65c1\u8def \u7f13\u51b2\uff0c\u5176\u4fdd\u5b58\u4e86\u6700\u8fd1\u6240\u4f7f\u7528\u7684\u9875\u8868\u5730\u5740\u7ffb\u8bd1\uff0c\u53ef\u4ee5 \u52a0\u901f\u9875\u8868\u7684\u67e5\u8be2\u3002<\/p>\n

\u3000\u3000debug_line: \u5305\u542b\u884c\u53f7\u4fe1\u606f 4) . debug_loc: \u5305\u542b\u5b8f\u7684\u63cf\u8ff07694 \u79d1\u5b66\u6280\u672f\u4e0e\u5de5\u7a0b11\u5377\u56fe10MMU \u6574\u4f53\u7ed3\u6784\u6211\u4eec\u5728\u6a21\u62dfMMU\u65f6\u4e5f\u4fdd\u6301\u5176\u4e0e\u771f\u5b9e\u7684\u786c\u4ef6\u64cd \u4f5c\u4e00\u81f4\u3002<\/p>\n

\u3000\u3000\u5176\u5927\u4f53\u6d41\u7a0b\u9996\u5148\u5f97\u5230\u8fdb\u7a0b ID\uff0c\u5207\u6362\u5230\u76ee\u6807\u4e0a\u4e0b\u6587\u73af\u5883\uff0c\u68c0\u67e5\u662f\u6307\u4ee4\u8bbf\u5b58\u8fd8\u662f\u6570\u636e\u8bbf\u5b58;<\/p>\n

\u3000\u3000\u68c0\u67e5MSR\u5bc4\u5b58\u5668\uff0c\u67e5\u770b\u5730\u5740\u8f6c\u6362\u529f\u80fd\u662f\u5426\u5f00\u542f\uff0c\u5982\u679c\u6ca1\u5f00\u542f\u5219\u6709\u6548\u5730\u5740\u5c31\u662f\u7269\u7406\u5730 \u5740\uff0c\u53ef\u76f4\u63a5\u8bbf\u95ee\u5185\u5b58;<\/p>\n

\u3000\u3000\u67e5\u770bBAT\u662f\u5426\u547d\u4e2d\uff0c\u5982\u679c \u547d\u4e2d\u5219\u53ef\u4ee5\u8df3\u8fc7\u5730\u5740\u7ffb\u8bd1\u6b65\u9aa4\uff0c\u76f4\u63a5\u68c0\u67e5\u8bbf\u95ee\u6743\u9650\uff0c\u672a\u547d\u4e2d\u5219\u7ee7\u7eed;<\/p>\n

\u3000\u3000\u6267\u884c\u6bb5\u7ffb\u8bd1\uff0c\u5c06\u6709\u9650\u5730\u5740\u7ffb\u8bd1\u4e3a\u5185 \u90e8\u865a\u62df\u5730\u5740;<\/p>\n

\u3000\u3000\u6267\u884c\u9875\u7ffb\u8bd1\u524d\u9996\u5148\u67e5\u770b TLB\uff0c\u770b\u76f8\u5173 \u7ffb\u8bd1\u662f\u5426\u5df2\u88ab\u7f13\u5b58;<\/p>\n

\u3000\u3000\u6267\u884c\u9875\u7ffb\u8bd1\uff0c\u5c06\u865a\u62df\u5730\u5740\u7ffb\u8bd1 \u4e3a\u7269\u7406\u5730\u5740\uff0c\u5e76\u66f4\u65b0\u76f8\u5173 TLB \u4fe1\u606f;<\/p>\n

\u3000\u3000\u68c0\u67e5\u8bbf\u95ee\u6743 \u9650\uff0c\u5982\u679c\u6743\u9650\u4e0d\u591f\u5219\u4f1a\u5f15\u53d1\u76f8\u5173;<\/p>\n

\u3000\u3000\u5b8c\u6210\u5730\u5740\u7ffb\u8bd1\u3002MMU \u4eff\u771f\u6d41\u7a0b 2 ) BAT ( Block Address Translation) \uff0c\u4ed6\u662f\u7531\u8f6f \u4ef6\u63a7\u5236\u7684\u4e00\u4e2a\u6570\u7ec4\uff0c\u7528\u6765\u7f13\u5b58\u6709\u6548\u7684\u5757\u5730\u5740\u7ffb\u8bd1\u3002<\/p>\n

\u3000\u3000\u901a\u8fc7\u4e0a\u6587\u5d34\u6cf0\u5c0f\u7f16\u8be6\u7ec6\u7684\u8bf4\u660e\u4e86Powerpc\u5904\u7406\u5668\u5f00\u53d1\u51fa\u7a33\u5b9a\u548c\u6613\u7528\u53ef\u9760\u7684\u4eff\u771f\u8c03\u8bd5\u5e73\u53f0\u3002Powerpc\u5904\u7406\u5668\u662f\u4e00\u4e2a\u4ee3\u8868\u7740\u9ad8\u6c34\u51c6\u7684\u4eff\u771f\u8c03\u8bd5\u5e73\u53f0\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

powerPC( MPC8270) \u5904\u7406\u5668\u662f\u4e00\u6b3e\u6613\u7528\u3001\u7a33\u5b9a\u3001\u53ef\u9760\u7684\u4eff\u771f\u8c03\u8bd5\u5e73\u53f0\u3002\u9488\u5bf9 PowerPC \u4f53\u7cfb\u7ed3\u6784\uff0c\u6784\u5efa\u51fa\u4e00\u5957\u5b8c\u6574\u7684\u5168\u7cfb\u7edf\u6a21\u62df\u4eff\u771f\u5e73\u53f0\uff0c\u5e76\u91cd\u70b9\u9610\u8ff0\u4e86 ELF\u89e3\u6790\u3001\u6307\u4ee4\u96c6\u89e3\u6790\u3001\u865a\u62df MMU \u548c \u65f6\u949f\u4e2d\u65ad\u6a21\u5757\u7684\u5b9e\u73b0\u65b9\u6cd5\u3002<\/p>\n","protected":false},"author":1,"featured_media":1546,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[6],"tags":[282,283],"_links":{"self":[{"href":"http:\/\/www.vttbga.com\/wp-json\/wp\/v2\/posts\/1545"}],"collection":[{"href":"http:\/\/www.vttbga.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.vttbga.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.vttbga.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.vttbga.com\/wp-json\/wp\/v2\/comments?post=1545"}],"version-history":[{"count":6,"href":"http:\/\/www.vttbga.com\/wp-json\/wp\/v2\/posts\/1545\/revisions"}],"predecessor-version":[{"id":1555,"href":"http:\/\/www.vttbga.com\/wp-json\/wp\/v2\/posts\/1545\/revisions\/1555"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/www.vttbga.com\/wp-json\/wp\/v2\/media\/1546"}],"wp:attachment":[{"href":"http:\/\/www.vttbga.com\/wp-json\/wp\/v2\/media?parent=1545"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.vttbga.com\/wp-json\/wp\/v2\/categories?post=1545"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.vttbga.com\/wp-json\/wp\/v2\/tags?post=1545"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}