{"id":31267,"date":"2025-04-21T09:04:36","date_gmt":"2025-04-21T01:04:36","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/31267.html"},"modified":"2025-04-21T09:04:36","modified_gmt":"2025-04-21T01:04:36","slug":"arm-%e6%9e%b6%e6%9e%84-%e9%80%9a%e7%94%a8%e5%af%84%e5%ad%98%e5%99%a8-%e7%8a%b6%e6%80%81%e5%af%84%e5%ad%98%e5%99%a8-%e6%8e%a7%e5%88%b6%e5%af%84%e5%ad%98%e5%99%a8-%e7%89%b9%e6%ae%8a%e7%94%a8%e9%80%94","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/31267.html","title":{"rendered":"ARM \u67b6\u6784--\u901a\u7528\u5bc4\u5b58\u5668\/\u72b6\u6001\u5bc4\u5b58\u5668\/\u63a7\u5236\u5bc4\u5b58\u5668\/\u7279\u6b8a\u7528\u9014\u5bc4\u5b58\u5668"},"content":{"rendered":"<p id=\"main-toc\">\u76ee\u5f55<\/p>\n<p id=\"-toc\" style=\"margin-left:0px\">\n<p id=\"%E4%B8%80%C2%A0ARM%20%E6%9E%B6%E6%9E%84%E4%B8%AD%E7%9A%84%E5%AF%84%E5%AD%98%E5%99%A8-toc\" style=\"margin-left:0px\">\u4e00\u00a0ARM \u67b6\u6784\u4e2d\u7684\u5bc4\u5b58\u5668<\/p>\n<p id=\"ARM%20%E6%9E%B6%E6%9E%84%E4%B8%AD%E7%9A%84%E5%AF%84%E5%AD%98%E5%99%A8-toc\" style=\"margin-left:40px\">ARM \u67b6\u6784\u4e2d\u7684\u5bc4\u5b58\u5668<\/p>\n<p id=\"%E9%80%9A%E7%94%A8%E5%AF%84%E5%AD%98%E5%99%A8-toc\" style=\"margin-left:40px\">\u901a\u7528\u5bc4\u5b58\u5668<\/p>\n<p id=\"%E7%8A%B6%E6%80%81%E5%AF%84%E5%AD%98%E5%99%A8-toc\" style=\"margin-left:40px\">\u72b6\u6001\u5bc4\u5b58\u5668<\/p>\n<p id=\"%E6%8E%A7%E5%88%B6%E5%AF%84%E5%AD%98%E5%99%A8-toc\" style=\"margin-left:40px\">\u63a7\u5236\u5bc4\u5b58\u5668<\/p>\n<p id=\"%E7%89%B9%E6%AE%8A%E7%94%A8%E9%80%94%E5%AF%84%E5%AD%98%E5%99%A8-toc\" style=\"margin-left:40px\">\u7279\u6b8a\u7528\u9014\u5bc4\u5b58\u5668<\/p>\n<p id=\"%E6%80%BB%E7%BB%93-toc\" style=\"margin-left:40px\">\u603b\u7ed3<\/p>\n<p id=\"%E4%BA%8C%20%E9%80%9A%E7%94%A8%E5%AF%84%E5%AD%98%E5%99%A8-toc\" style=\"margin-left:0px\">\u4e8c \u901a\u7528\u5bc4\u5b58\u5668<\/p>\n<p id=\"ARM%20%E6%9E%B6%E6%9E%84%E4%B8%AD%E7%9A%84%E9%80%9A%E7%94%A8%E5%AF%84%E5%AD%98%E5%99%A8-toc\" style=\"margin-left:40px\">ARM \u67b6\u6784\u4e2d\u7684\u901a\u7528\u5bc4\u5b58\u5668<\/p>\n<p id=\"ARMv7%20%E6%9E%B6%E6%9E%84-toc\" style=\"margin-left:80px\">ARMv7 \u67b6\u6784<\/p>\n<p id=\"ARMv8%20%E6%9E%B6%E6%9E%84-toc\" style=\"margin-left:80px\">ARMv8 \u67b6\u6784<\/p>\n<p id=\"%E5%AE%9E%E4%BE%8B-toc\" style=\"margin-left:40px\">\u5b9e\u4f8b<\/p>\n<p id=\"ARMv7%20%E6%9E%B6%E6%9E%84-toc\" style=\"margin-left:80px\">ARMv7 \u67b6\u6784<\/p>\n<p id=\"ARMv8%20%E6%9E%B6%E6%9E%84-toc\" style=\"margin-left:80px\">ARMv8 \u67b6\u6784<\/p>\n<p id=\"%E4%B8%89%20%E7%8A%B6%E6%80%81%E5%AF%84%E5%AD%98%E5%99%A8-toc\" style=\"margin-left:40px\">\u4e09 \u72b6\u6001\u5bc4\u5b58\u5668<\/p>\n<p id=\"ARM%20%E6%9E%B6%E6%9E%84%E4%B8%AD%E7%9A%84%E7%8A%B6%E6%80%81%E5%AF%84%E5%AD%98%E5%99%A8-toc\" style=\"margin-left:80px\">ARM \u67b6\u6784\u4e2d\u7684\u72b6\u6001\u5bc4\u5b58\u5668<\/p>\n<p id=\"%E7%8A%B6%E6%80%81%E5%AF%84%E5%AD%98%E5%99%A8-toc\" style=\"margin-left:120px\">\u72b6\u6001\u5bc4\u5b58\u5668<\/p>\n<p id=\"%E8%AF%A6%E7%BB%86%E8%AF%B4%E6%98%8E-toc\" style=\"margin-left:120px\">\u8be6\u7ec6\u8bf4\u660e<\/p>\n<p id=\"%E5%AE%9E%E4%BE%8B-toc\" style=\"margin-left:80px\">\u5b9e\u4f8b<\/p>\n<p id=\"ARMv7%20%E6%9E%B6%E6%9E%84-toc\" style=\"margin-left:120px\">ARMv7 \u67b6\u6784<\/p>\n<p id=\"ARMv8%20%E6%9E%A9%E6%9E%84-toc\" style=\"margin-left:120px\">ARMv8 \u67a9\u6784<\/p>\n<p id=\"%E5%9B%9B%20%E7%89%B9%E6%AE%8A%E7%94%A8%E9%80%94%E5%AF%84%E5%AD%98%E5%99%A8-toc\" style=\"margin-left:0px\">\u56db \u7279\u6b8a\u7528\u9014\u5bc4\u5b58\u5668<\/p>\n<p id=\"ARM%20%E6%9E%B6%E6%9E%84%E4%B8%8B%E7%9A%84%E7%89%B9%E6%AE%8A%E7%94%A8%E9%80%94%E5%AF%84%E5%AD%98%E5%99%A8-toc\" style=\"margin-left:80px\">ARM \u67b6\u6784\u4e0b\u7684\u7279\u6b8a\u7528\u9014\u5bc4\u5b58\u5668<\/p>\n<p id=\"%E5%A0%86%E6%A0%88%E6%8C%87%E9%92%88%20(SP)-toc\" style=\"margin-left:40px\">\u5806\u6808\u6307\u9488 (SP)<\/p>\n<p id=\"%E9%93%BE%E6%8E%A5%E5%AF%84%E5%AD%98%E5%99%A8%20(LR)-toc\" style=\"margin-left:40px\">\u94fe\u63a5\u5bc4\u5b58\u5668 (LR)<\/p>\n<p id=\"%E7%A8%8B%E5%BA%8F%E8%AE%A1%E6%95%B0%E5%99%A8%20(PC)-toc\" style=\"margin-left:40px\">\u7a0b\u5e8f\u8ba1\u6570\u5668 (PC)<\/p>\n<p id=\"%E7%B3%BB%E7%BB%9F%E5%AF%84%E5%AD%98%E5%99%A8%20(SYSREG)-toc\" style=\"margin-left:120px\">\u7cfb\u7edf\u5bc4\u5b58\u5668 (SYSREG)<\/p>\n<hr id=\"hr-toc\" \/>\n<h2 id=\"%E4%B8%80%C2%A0ARM%20%E6%9E%B6%E6%9E%84%E4%B8%AD%E7%9A%84%E5%AF%84%E5%AD%98%E5%99%A8\">\u4e00\u00a0ARM \u67b6\u6784\u4e2d\u7684\u5bc4\u5b58\u5668<\/h2>\n<h3 id=\"ARM%20%E6%9E%B6%E6%9E%84%E4%B8%AD%E7%9A%84%E5%AF%84%E5%AD%98%E5%99%A8\">ARM \u67b6\u6784\u4e2d\u7684\u5bc4\u5b58\u5668<\/h3>\n<p>\u5728 ARM \u67b6\u6784\u4e2d&#xff0c;\u5bc4\u5b58\u5668\u662f CPU \u5185\u90e8\u7528\u4e8e\u5b58\u50a8\u6570\u636e\u3001\u5730\u5740\u548c\u72b6\u6001\u4fe1\u606f\u7684\u5173\u952e\u7ec4\u4ef6\u3002ARM \u67b6\u6784\u5b9a\u4e49\u4e86\u4e00\u7cfb\u5217\u7684\u5bc4\u5b58\u5668&#xff0c;\u5305\u62ec\u901a\u7528\u5bc4\u5b58\u5668\u3001\u72b6\u6001\u5bc4\u5b58\u5668\u3001\u7a0b\u5e8f\u8ba1\u6570\u5668\u7b49\u3002\u4e0b\u9762\u662f\u5bf9 ARM \u67b6\u6784\u4e2d\u4e3b\u8981\u5bc4\u5b58\u5668\u7684\u4ecb\u7ecd&#xff1a;<\/p>\n<h3 id=\"%E9%80%9A%E7%94%A8%E5%AF%84%E5%AD%98%E5%99%A8\">\u901a\u7528\u5bc4\u5b58\u5668<\/h3>\n<p>\u901a\u7528\u5bc4\u5b58\u5668\u662f\u4e00\u7ec4\u7528\u4e8e\u5b58\u50a8\u6570\u636e\u548c\u5730\u5740\u7684\u5bc4\u5b58\u5668\u3002\u5728 ARM \u67b6\u6784\u7684\u4e0d\u540c\u7248\u672c\u4e2d&#xff0c;\u8fd9\u4e9b\u5bc4\u5b58\u5668\u7684\u6570\u91cf\u548c\u547d\u540d\u6709\u6240\u4e0d\u540c\u3002<\/p>\n<ul>\n<li>\n<p>R0-R15 (R0-R14 &#043; PC):<\/p>\n<ul>\n<li>\u5728 ARMv7 \u548c\u4e4b\u524d\u7684\u7248\u672c\u4e2d&#xff0c;\u6709 16 \u4e2a\u901a\u7528\u5bc4\u5b58\u5668&#xff0c;\u7f16\u53f7\u4ece R0 \u5230 R15\u3002<\/li>\n<li>R0 \u5230 R14 \u7528\u4e8e\u5b58\u50a8\u6570\u636e\u548c\u5730\u5740\u3002<\/li>\n<li>R15 \u901a\u5e38\u88ab\u79f0\u4e3a\u7a0b\u5e8f\u8ba1\u6570\u5668&#xff08;PC&#xff09;&#xff0c;\u7528\u4e8e\u5b58\u50a8\u4e0b\u4e00\u6761\u6307\u4ee4\u7684\u5730\u5740\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>X0-X30 (X0-X29 &#043; SP):<\/p>\n<ul>\n<li>\u5728 ARMv8 \u548c\u4e4b\u540e\u7684\u7248\u672c\u4e2d&#xff0c;\u6709 31 \u4e2a\u901a\u7528\u5bc4\u5b58\u5668&#xff0c;\u7f16\u53f7\u4ece X0 \u5230 X30\u3002<\/li>\n<li>X0 \u5230 X29 \u7528\u4e8e\u5b58\u50a8\u6570\u636e\u548c\u5730\u5740\u3002<\/li>\n<li>X30 \u901a\u5e38\u88ab\u79f0\u4e3a\u94fe\u63a5\u5bc4\u5b58\u5668&#xff08;LR&#xff09;&#xff0c;\u7528\u4e8e\u4fdd\u5b58\u8fd4\u56de\u5730\u5740\u3002<\/li>\n<li>X31 \u901a\u5e38\u88ab\u79f0\u4e3a\u5806\u6808\u6307\u9488&#xff08;SP&#xff09;&#xff0c;\u7528\u4e8e\u7ba1\u7406\u5806\u6808\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3 id=\"%E7%8A%B6%E6%80%81%E5%AF%84%E5%AD%98%E5%99%A8\">\u72b6\u6001\u5bc4\u5b58\u5668<\/h3>\n<p>\u72b6\u6001\u5bc4\u5b58\u5668\u7528\u4e8e\u5b58\u50a8 CPU \u7684\u72b6\u6001\u4fe1\u606f&#xff0c;\u4f8b\u5982\u6807\u5fd7\u4f4d\u3001\u4e2d\u65ad\u4f7f\u80fd\u72b6\u6001\u7b49\u3002<\/p>\n<ul>\n<li>Program Status Register (PSR):\n<ul>\n<li>PSR \u662f ARM \u67b6\u6784\u4e2d\u7684\u4e00\u4e2a\u91cd\u8981\u7684\u72b6\u6001\u5bc4\u5b58\u5668&#xff0c;\u5305\u542b\u4e86\u591a\u4e2a\u5b50\u5bc4\u5b58\u5668&#xff0c;\u7528\u4e8e\u5b58\u50a8 CPU \u7684\u72b6\u6001\u4fe1\u606f\u3002<\/li>\n<li>PSR \u5305\u62ec&#xff1a;\n<ul>\n<li>Application Program Status Register (APSR): \u7528\u4e8e\u5b58\u50a8\u6761\u4ef6\u7801\u6807\u5fd7\u4f4d&#xff08;\u5982 N\u3001Z\u3001C\u3001V \u7b49&#xff09;\u3002<\/li>\n<li>Implementation-defined Program Status Register (IPSR): \u7528\u4e8e\u6307\u793a\u5f53\u524d\u6b63\u5728\u5904\u7406\u7684\u4e2d\u65ad\u3002<\/li>\n<li>Program Status Register (EPSR): \u7528\u4e8e\u5b58\u50a8\u63a7\u5236\u4f4d&#xff0c;\u5982\u4e2d\u65ad\u4f7f\u80fd\u4f4d\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3 id=\"%E6%8E%A7%E5%88%B6%E5%AF%84%E5%AD%98%E5%99%A8\">\u63a7\u5236\u5bc4\u5b58\u5668<\/h3>\n<p>\u63a7\u5236\u5bc4\u5b58\u5668\u7528\u4e8e\u63a7\u5236 CPU \u7684\u884c\u4e3a&#xff0c;\u5982\u4e2d\u65ad\u63a7\u5236\u3001\u8c03\u8bd5\u63a7\u5236\u7b49\u3002<\/p>\n<ul>\n<li>Control Register (CTRL):\n<ul>\n<li>\u7528\u4e8e\u63a7\u5236\u67d0\u4e9b CPU \u7279\u6027&#xff0c;\u5982\u662f\u5426\u542f\u7528\u8c03\u8bd5\u6a21\u5f0f\u7b49\u3002<\/li>\n<\/ul>\n<\/li>\n<li>Auxiliary Control Register (ACTLR):\n<ul>\n<li>\u7528\u4e8e\u63a7\u5236\u8f85\u52a9\u7279\u6027&#xff0c;\u5982\u6027\u80fd\u76d1\u63a7\u5355\u5143&#xff08;PMU&#xff09;\u7b49\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3 id=\"%E7%89%B9%E6%AE%8A%E7%94%A8%E9%80%94%E5%AF%84%E5%AD%98%E5%99%A8\">\u7279\u6b8a\u7528\u9014\u5bc4\u5b58\u5668<\/h3>\n<p>\u9664\u4e86\u901a\u7528\u5bc4\u5b58\u5668\u548c\u72b6\u6001\u5bc4\u5b58\u5668\u4e4b\u5916&#xff0c;ARM \u67b6\u6784\u8fd8\u5305\u62ec\u4e00\u4e9b\u7279\u6b8a\u7528\u9014\u7684\u5bc4\u5b58\u5668\u3002<\/p>\n<ul>\n<li>Stack Pointer (SP):\n<ul>\n<li>\u7528\u4e8e\u7ba1\u7406\u5806\u6808&#xff0c;\u901a\u5e38\u6620\u5c04\u5230\u901a\u7528\u5bc4\u5b58\u5668 X31\/R13\u3002<\/li>\n<\/ul>\n<\/li>\n<li>Link Register (LR):\n<ul>\n<li>\u7528\u4e8e\u4fdd\u5b58\u8fd4\u56de\u5730\u5740&#xff0c;\u901a\u5e38\u6620\u5c04\u5230\u901a\u7528\u5bc4\u5b58\u5668 X30\/R14\u3002<\/li>\n<\/ul>\n<\/li>\n<li>Program Counter (PC):\n<ul>\n<li>\u7528\u4e8e\u5b58\u50a8\u4e0b\u4e00\u6761\u6307\u4ee4\u7684\u5730\u5740&#xff0c;\u901a\u5e38\u6620\u5c04\u5230\u901a\u7528\u5bc4\u5b58\u5668 X15\/R15\u3002<\/li>\n<\/ul>\n<\/li>\n<li>System Register (SYSREG):\n<ul>\n<li>\u7528\u4e8e\u63a7\u5236\u548c\u76d1\u89c6 CPU \u7684\u5404\u79cd\u7279\u6027\u548c\u72b6\u6001&#xff0c;\u5982\u4e2d\u65ad\u63a7\u5236\u3001\u7f13\u5b58\u63a7\u5236\u7b49\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3 id=\"%E6%80%BB%E7%BB%93\">\u603b\u7ed3<\/h3>\n<ul>\n<li>\n<p>\u901a\u7528\u5bc4\u5b58\u5668:<\/p>\n<ul>\n<li>\u7528\u4e8e\u5b58\u50a8\u6570\u636e\u3001\u5730\u5740\u7b49\u3002<\/li>\n<li>\u5728 ARMv7 \u548c\u4e4b\u524d\u7248\u672c\u4e2d&#xff0c;\u7f16\u53f7\u4e3a R0 \u5230 R15\u3002<\/li>\n<li>\u5728 ARMv8 \u548c\u4e4b\u540e\u7248\u672c\u4e2d&#xff0c;\u7f16\u53f7\u4e3a X0 \u5230 X30\u3002<\/li>\n<li>R15\/X15 \u901a\u5e38\u79f0\u4e3a\u7a0b\u5e8f\u8ba1\u6570\u5668&#xff08;PC&#xff09;\u3002<\/li>\n<li>X30 \u901a\u5e38\u79f0\u4e3a\u94fe\u63a5\u5bc4\u5b58\u5668&#xff08;LR&#xff09;\u3002<\/li>\n<li>X31\/R13 \u901a\u5e38\u79f0\u4e3a\u5806\u6808\u6307\u9488&#xff08;SP&#xff09;\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u72b6\u6001\u5bc4\u5b58\u5668:<\/p>\n<ul>\n<li>\u7528\u4e8e\u5b58\u50a8 CPU \u7684\u72b6\u6001\u4fe1\u606f&#xff0c;\u5982\u6761\u4ef6\u7801\u6807\u5fd7\u4f4d\u7b49\u3002<\/li>\n<li>\u5305\u62ec APSR\u3001IPSR \u548c EPSR\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u63a7\u5236\u5bc4\u5b58\u5668:<\/p>\n<ul>\n<li>\u7528\u4e8e\u63a7\u5236 CPU \u7684\u884c\u4e3a&#xff0c;\u5982 CTRL \u548c ACTLR\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u7279\u6b8a\u7528\u9014\u5bc4\u5b58\u5668:<\/p>\n<ul>\n<li>\u5305\u62ec SP\u3001LR\u3001PC \u548c SYSREG\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>\u8fd9\u4e9b\u5bc4\u5b58\u5668\u6784\u6210\u4e86 ARM \u67b6\u6784\u7684\u6838\u5fc3\u7ec4\u6210\u90e8\u5206&#xff0c;\u5bf9\u4e8e\u7406\u89e3\u548c\u7f16\u5199 ARM \u67b6\u6784\u7684\u6c47\u7f16\u8bed\u8a00\u7a0b\u5e8f\u975e\u5e38\u91cd\u8981\u3002<\/p>\n<h2 id=\"%E4%BA%8C%20%E9%80%9A%E7%94%A8%E5%AF%84%E5%AD%98%E5%99%A8\">\u4e8c \u901a\u7528\u5bc4\u5b58\u5668<\/h2>\n<h3 id=\"ARM%20%E6%9E%B6%E6%9E%84%E4%B8%AD%E7%9A%84%E9%80%9A%E7%94%A8%E5%AF%84%E5%AD%98%E5%99%A8\">ARM \u67b6\u6784\u4e2d\u7684\u901a\u7528\u5bc4\u5b58\u5668<\/h3>\n<p>\u5728 ARM \u67b6\u6784\u4e2d&#xff0c;\u901a\u7528\u5bc4\u5b58\u5668\u662f\u4e00\u7ec4\u7528\u4e8e\u5b58\u50a8\u6570\u636e\u3001\u5730\u5740\u548c\u5176\u4ed6\u4fe1\u606f\u7684\u5bc4\u5b58\u5668\u3002ARM \u67b6\u6784\u7684\u4e0d\u540c\u7248\u672c\u4e2d&#xff0c;\u901a\u7528\u5bc4\u5b58\u5668\u7684\u6570\u91cf\u548c\u547d\u540d\u6709\u6240\u4e0d\u540c\u3002\u4ee5\u4e0b\u662f ARMv7 \u548c ARMv8 \u67b6\u6784\u4e2d\u901a\u7528\u5bc4\u5b58\u5668\u7684\u8be6\u7ec6\u4ecb\u7ecd\u53ca\u5b9e\u4f8b\u3002<\/p>\n<h4 id=\"ARMv7%20%E6%9E%B6%E6%9E%84\">ARMv7 \u67b6\u6784<\/h4>\n<p>\u5728 ARMv7 \u67b6\u6784\u4e2d&#xff0c;\u6709 16 \u4e2a\u901a\u7528\u5bc4\u5b58\u5668&#xff0c;\u7f16\u53f7\u4ece R0 \u5230 R15\u3002\u8fd9\u4e9b\u5bc4\u5b58\u5668\u4e3b\u8981\u7528\u4e8e\u5b58\u50a8\u6570\u636e\u3001\u5730\u5740\u4ee5\u53ca\u7a0b\u5e8f\u8ba1\u6570\u5668\u7b49\u3002<\/p>\n<ul>\n<li>\n<p>R0-R14:<\/p>\n<ul>\n<li>\u8fd9\u4e9b\u5bc4\u5b58\u5668\u53ef\u4ee5\u7528\u4e8e\u5b58\u50a8\u6570\u636e\u3001\u5730\u5740\u7b49\u3002<\/li>\n<li>\u5b83\u4eec\u5728\u51fd\u6570\u8c03\u7528\u548c\u6570\u636e\u5904\u7406\u4e2d\u975e\u5e38\u6709\u7528\u3002<\/li>\n<li>R0 \u5230 R3 \u901a\u5e38\u7528\u4e8e\u51fd\u6570\u8c03\u7528\u4e2d\u7684\u53c2\u6570\u4f20\u9012\u3002<\/li>\n<li>R4 \u5230 R11 \u901a\u5e38\u7528\u4e8e\u5c40\u90e8\u53d8\u91cf\u6216\u51fd\u6570\u5185\u90e8\u4f7f\u7528\u7684\u5bc4\u5b58\u5668\u3002<\/li>\n<li>R12 \u901a\u5e38\u7528\u4f5c\u4e34\u65f6\u5bc4\u5b58\u5668\u6216\u7528\u4e8e\u4fdd\u5b58\u8de8\u51fd\u6570\u8c03\u7528\u7684\u6570\u636e\u3002<\/li>\n<li>R13 \u901a\u5e38\u79f0\u4e3a\u5806\u6808\u6307\u9488&#xff08;SP&#xff09;&#xff0c;\u7528\u4e8e\u7ba1\u7406\u5806\u6808\u3002<\/li>\n<li>R14 \u901a\u5e38\u79f0\u4e3a\u94fe\u63a5\u5bc4\u5b58\u5668&#xff08;LR&#xff09;&#xff0c;\u7528\u4e8e\u4fdd\u5b58\u8fd4\u56de\u5730\u5740\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>R15 (PC):<\/p>\n<ul>\n<li>R15 \u901a\u5e38\u79f0\u4e3a\u7a0b\u5e8f\u8ba1\u6570\u5668&#xff08;PC&#xff09;&#xff0c;\u7528\u4e8e\u5b58\u50a8\u4e0b\u4e00\u6761\u6307\u4ee4\u7684\u5730\u5740\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h4 id=\"ARMv8%20%E6%9E%B6%E6%9E%84\">ARMv8 \u67b6\u6784<\/h4>\n<p>\u5728 ARMv8 \u67b6\u6784\u4e2d&#xff0c;\u901a\u7528\u5bc4\u5b58\u5668\u7684\u6570\u91cf\u589e\u52a0\u5230\u4e86 31 \u4e2a&#xff0c;\u7f16\u53f7\u4ece X0 \u5230 X30\u3002\u6b64\u5916&#xff0c;\u8fd8\u5f15\u5165\u4e86 32 \u4f4d\u548c 64 \u4f4d\u5bc4\u5b58\u5668\u7684\u533a\u5206&#xff0c;\u5206\u522b\u79f0\u4e3a X \u5bc4\u5b58\u5668\u548c W \u5bc4\u5b58\u5668\u3002<\/p>\n<ul>\n<li>\n<p>X0-X29:<\/p>\n<ul>\n<li>\u8fd9\u4e9b\u5bc4\u5b58\u5668\u53ef\u4ee5\u7528\u4e8e\u5b58\u50a8\u6570\u636e\u3001\u5730\u5740\u7b49\u3002<\/li>\n<li>\u5b83\u4eec\u5728\u51fd\u6570\u8c03\u7528\u548c\u6570\u636e\u5904\u7406\u4e2d\u975e\u5e38\u6709\u7528\u3002<\/li>\n<li>X0 \u5230 X3 \u901a\u5e38\u7528\u4e8e\u51fd\u6570\u8c03\u7528\u4e2d\u7684\u53c2\u6570\u4f20\u9012\u3002<\/li>\n<li>X4 \u5230 X29 \u901a\u5e38\u7528\u4e8e\u5c40\u90e8\u53d8\u91cf\u6216\u51fd\u6570\u5185\u90e8\u4f7f\u7528\u7684\u5bc4\u5b58\u5668\u3002<\/li>\n<li>X30 \u901a\u5e38\u79f0\u4e3a\u94fe\u63a5\u5bc4\u5b58\u5668&#xff08;LR&#xff09;&#xff0c;\u7528\u4e8e\u4fdd\u5b58\u8fd4\u56de\u5730\u5740\u3002<\/li>\n<li>X31 \u901a\u5e38\u79f0\u4e3a\u5806\u6808\u6307\u9488&#xff08;SP&#xff09;&#xff0c;\u7528\u4e8e\u7ba1\u7406\u5806\u6808\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>W0-W29:<\/p>\n<ul>\n<li>\u8fd9\u4e9b\u5bc4\u5b58\u5668\u662f X0 \u5230 X29 \u7684\u4f4e 32 \u4f4d\u7248\u672c&#xff0c;\u7528\u4e8e\u517c\u5bb9 32 \u4f4d\u5e94\u7528\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3 id=\"%E5%AE%9E%E4%BE%8B\">\u5b9e\u4f8b<\/h3>\n<h5>ARMv7 \u67b6\u6784<\/h5>\n<p>asm<\/p>\n<p>\u6df1\u8272\u7248\u672c<\/p>\n<p>1\/\/ ARMv7 \u67b6\u6784\u793a\u4f8b<br \/>\n2\/\/ \u5047\u8bbe a1 \u5bc4\u5b58\u5668\u4e2d\u5b58\u50a8\u4e86\u4e00\u4e2a\u5730\u5740&#xff0c;\u8be5\u5730\u5740\u6307\u5411\u4e00\u4e2a\u6574\u6570<br \/>\n3\/\/ \u6211\u4eec\u5c06\u4ece\u8be5\u5730\u5740\u8bfb\u53d6\u6574\u6570&#xff0c;\u5e76\u5c06\u5176\u5b58\u50a8\u5230 a0 \u5bc4\u5b58\u5668\u4e2d<br \/>\n4<br \/>\n5LDR R0, [R1]    &#064; \u4ece a1 \u6307\u5411\u7684\u5730\u5740\u8bfb\u53d6\u6574\u6570\u5230 a0 <\/p>\n<h4>ARMv8 \u67b6\u6784<\/h4>\n<p>asm<\/p>\n<p>\u6df1\u8272\u7248\u672c<\/p>\n<p>1\/\/ ARMv8 \u67b6\u6784\u793a\u4f8b<br \/>\n2\/\/ \u5047\u8bbe x1 \u5bc4\u5b58\u5668\u4e2d\u5b58\u50a8\u4e86\u4e00\u4e2a\u5730\u5740&#xff0c;\u8be5\u5730\u5740\u6307\u5411\u4e00\u4e2a\u6574\u6570<br \/>\n3\/\/ \u6211\u4eec\u5c06\u4ece\u8be5\u5730\u5740\u8bfb\u53d6\u6574\u6570&#xff0c;\u5e76\u5c06\u5176\u5b58\u50a8\u5230 x0 \u5bc4\u5b58\u5668\u4e2d<br \/>\n4<br \/>\n5LDR X0, [X1]    &#064; \u4ece x1 \u6307\u5411\u7684\u5730\u5740\u8bfb\u53d6\u6574\u6570\u5230 x0 <\/p>\n<h3 id=\"%E4%B8%89%20%E7%8A%B6%E6%80%81%E5%AF%84%E5%AD%98%E5%99%A8\">\u4e09 \u72b6\u6001\u5bc4\u5b58\u5668<\/h3>\n<h4 id=\"ARM%20%E6%9E%B6%E6%9E%84%E4%B8%AD%E7%9A%84%E7%8A%B6%E6%80%81%E5%AF%84%E5%AD%98%E5%99%A8\">ARM \u67b6\u6784\u4e2d\u7684\u72b6\u6001\u5bc4\u5b58\u5668<\/h4>\n<p>\u5728 ARM \u67b6\u6784\u4e2d&#xff0c;\u72b6\u6001\u5bc4\u5b58\u5668\u7528\u4e8e\u5b58\u50a8 CPU \u7684\u72b6\u6001\u4fe1\u606f&#xff0c;\u5982\u6761\u4ef6\u7801\u6807\u5fd7\u4f4d\u3001\u4e2d\u65ad\u4f7f\u80fd\u72b6\u6001\u7b49\u3002\u8fd9\u4e9b\u5bc4\u5b58\u5668\u5bf9\u4e8e\u63a7\u5236 CPU \u7684\u884c\u4e3a\u975e\u5e38\u91cd\u8981\u3002\u4ee5\u4e0b\u662f ARM \u67b6\u6784\u4e2d\u4e3b\u8981\u7684\u72b6\u6001\u5bc4\u5b58\u5668\u53ca\u5176\u8be6\u7ec6\u4ecb\u7ecd&#xff1a;<\/p>\n<h5>\u72b6\u6001\u5bc4\u5b58\u5668<\/h5>\n<ul>\n<li>Program Status Register (PSR):\n<ul>\n<li>PSR \u662f ARM \u67b6\u6784\u4e2d\u7684\u4e00\u4e2a\u91cd\u8981\u7684\u72b6\u6001\u5bc4\u5b58\u5668&#xff0c;\u5305\u542b\u4e86\u591a\u4e2a\u5b50\u5bc4\u5b58\u5668&#xff0c;\u7528\u4e8e\u5b58\u50a8 CPU \u7684\u72b6\u6001\u4fe1\u606f\u3002<\/li>\n<li>PSR \u5305\u62ec&#xff1a;\n<ul>\n<li>Application Program Status Register (APSR): \u7528\u4e8e\u5b58\u50a8\u6761\u4ef6\u7801\u6807\u5fd7\u4f4d&#xff08;\u5982 N\u3001Z\u3001C\u3001V \u7b49&#xff09;\u3002<\/li>\n<li>Implementation-defined Program Status Register (IPSR): \u7528\u4e8e\u6307\u793a\u5f53\u524d\u6b63\u5728\u5904\u7406\u7684\u4e2d\u65ad\u3002<\/li>\n<li>Program Status Register (EPSR): \u7528\u4e8e\u5b58\u50a8\u63a7\u5236\u4f4d&#xff0c;\u5982\u4e2d\u65ad\u4f7f\u80fd\u4f4d\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h5 id=\"%E8%AF%A6%E7%BB%86%E8%AF%B4%E6%98%8E\">\u8be6\u7ec6\u8bf4\u660e<\/h5>\n<ul>\n<li>\n<p>Application Program Status Register (APSR):<\/p>\n<ul>\n<li>APSR \u7528\u4e8e\u5b58\u50a8\u6761\u4ef6\u7801\u6807\u5fd7\u4f4d&#xff0c;\u8fd9\u4e9b\u6807\u5fd7\u4f4d\u7528\u4e8e\u6761\u4ef6\u5206\u652f\u6307\u4ee4\u548c\u7b97\u672f\u8fd0\u7b97\u6307\u4ee4\u3002<\/li>\n<li>APSR \u4e2d\u7684\u4e3b\u8981\u6807\u5fd7\u4f4d\u5305\u62ec&#xff1a;\n<ul>\n<li>N (Negative): \u5982\u679c\u6700\u8fd1\u7684\u7b97\u672f\u8fd0\u7b97\u7ed3\u679c\u7684\u6700\u9ad8\u4f4d\u4e3a 1&#xff0c;\u5219\u7f6e\u4f4d\u3002<\/li>\n<li>Z (Zero): \u5982\u679c\u6700\u8fd1\u7684\u7b97\u672f\u8fd0\u7b97\u7ed3\u679c\u4e3a 0&#xff0c;\u5219\u7f6e\u4f4d\u3002<\/li>\n<li>C (Carry): \u5982\u679c\u6700\u8fd1\u7684\u7b97\u672f\u8fd0\u7b97\u4ea7\u751f\u4e86\u8fdb\u4f4d&#xff0c;\u5219\u7f6e\u4f4d\u3002<\/li>\n<li>V (Overflow): \u5982\u679c\u6700\u8fd1\u7684\u7b97\u672f\u8fd0\u7b97\u4ea7\u751f\u4e86\u6ea2\u51fa&#xff0c;\u5219\u7f6e\u4f4d\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>Implementation-defined Program Status Register (IPSR):<\/p>\n<ul>\n<li>IPSR \u7528\u4e8e\u6307\u793a\u5f53\u524d\u6b63\u5728\u5904\u7406\u7684\u4e2d\u65ad\u3002<\/li>\n<li>\u5f53 CPU \u6b63\u5728\u5904\u7406\u4e2d\u65ad\u65f6&#xff0c;IPSR \u4e2d\u5305\u542b\u4e86\u4e2d\u65ad\u7684\u7f16\u53f7\u3002<\/li>\n<li>\u5f53\u6ca1\u6709\u6b63\u5728\u5904\u7406\u7684\u4e2d\u65ad\u65f6&#xff0c;IPSR \u7684\u503c\u4e3a 0\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>Program Status Register (EPSR):<\/p>\n<ul>\n<li>EPSR \u7528\u4e8e\u5b58\u50a8\u63a7\u5236\u4f4d&#xff0c;\u5982\u4e2d\u65ad\u4f7f\u80fd\u4f4d\u3002<\/li>\n<li>EPSR \u4e2d\u7684\u4e3b\u8981\u4f4d\u5305\u62ec&#xff1a;\n<ul>\n<li>I (Interrupt Disable): \u5982\u679c\u7f6e\u4f4d&#xff0c;\u5219\u7981\u7528\u6240\u6709\u4e2d\u65ad\u3002<\/li>\n<li>F (Fast Interrupt Disable): \u5982\u679c\u7f6e\u4f4d&#xff0c;\u5219\u7981\u7528\u5feb\u901f\u4e2d\u65ad\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h4>\u5b9e\u4f8b<\/h4>\n<h5>ARMv7 \u67b6\u6784<\/h5>\n<p>asm<\/p>\n<p>\u6df1\u8272\u7248\u672c<\/p>\n<p>1\/\/ ARMv7 \u67b6\u6784\u793a\u4f8b<br \/>\n2\/\/ \u5047\u8bbe\u9700\u8981\u5224\u65ad\u4e00\u4e2a\u7b97\u672f\u8fd0\u7b97\u7684\u7ed3\u679c\u662f\u5426\u4e3a\u96f6<br \/>\n3<br \/>\n4\/\/ \u6267\u884c\u4e00\u4e2a\u7b97\u672f\u8fd0\u7b97&#xff0c;\u6bd4\u5982\u5c06 R0 \u548c R1 \u76f8\u52a0<br \/>\n5ADD R0, R0, R1<br \/>\n6<br \/>\n7\/\/ \u5224\u65ad R0 \u662f\u5426\u4e3a\u96f6<br \/>\n8\/\/ \u5982\u679c Z \u6807\u5fd7\u4f4d\u88ab\u7f6e\u4f4d&#xff0c;\u5219 R0 \u4e3a\u96f6<br \/>\n9\/\/ \u5982\u679c Z \u6807\u5fd7\u4f4d\u672a\u88ab\u7f6e\u4f4d&#xff0c;\u5219 R0 \u4e0d\u4e3a\u96f6<br \/>\n10CMP R0, #0<br \/>\n11BEQ .zero  ; \u5982\u679c Z \u6807\u5fd7\u4f4d\u88ab\u7f6e\u4f4d&#xff0c;\u5219\u8df3\u8f6c\u5230 .zero \u6807\u7b7e<br \/>\n12<br \/>\n13\/\/ R0 \u4e0d\u4e3a\u96f6<br \/>\n14B .not_zero<br \/>\n15<br \/>\n16.zero:<br \/>\n17\/\/ R0 \u4e3a\u96f6\u7684\u60c5\u51b5<br \/>\n18&#8230;<br \/>\n19<br \/>\n20.not_zero:<br \/>\n21\/\/ R0 \u4e0d\u4e3a\u96f6\u7684\u60c5\u51b5<br \/>\n22&#8230; <\/p>\n<h5 id=\"ARMv8%20%E6%9E%A9%E6%9E%84\">ARMv8 \u67a9\u6784<\/h5>\n<p>asm<\/p>\n<p>\u6df1\u8272\u7248\u672c<\/p>\n<p>1\/\/ ARMv8 \u6784\u67b6\u793a\u4f8b<br \/>\n2\/\/ \u5047\u8bbe\u9700\u8981\u5224\u65ad\u4e00\u4e2a\u7b97\u672f\u8fd0\u7b97\u7684\u7ed3\u679c\u662f\u5426\u4e3a\u96f6<br \/>\n3<br \/>\n4\/\/ \u6267\u884c\u4e00\u4e2a\u7b97\u672f\u8fd0\u7b97&#xff0c;\u6bd4\u5982\u5c06 X0 \u548c X1 \u76f8\u52a0<br \/>\n5ADD X0, X0, X1<br \/>\n6<br \/>\n7\/\/ \u5224\u65ad X0 \u662f\u5426\u4e3a\u96f6<br \/>\n8\/\/ \u5982\u679c Z \u6807\u5fd7\u4f4d\u88ab\u7f6e\u4f4d&#xff0c;\u5219 X0 \u4e3a\u96f6<br \/>\n9\/\/ \u5982\u679c Z \u6807\u5fd7\u4f4d\u672a\u88ab\u7f6e\u4f4d&#xff0c;\u5219 X0 \u4e0d\u4e3a\u96f6<br \/>\n10CMP X0, #0<br \/>\n11BEQ .zero  ; \u5982\u679c Z \u6807\u5fd7\u4f4d\u88ab\u7f6e\u4f4d&#xff0c;\u5219\u8df3\u8f6c\u5230 .zero \u6807\u7b7e<br \/>\n12<br \/>\n13\/\/ X0 \u4e0d\u4e3a\u96f6<br \/>\n14B .not_zero<br \/>\n15<br \/>\n16.zero:<br \/>\n17\/\/ X0 \u4e3a\u96f6\u7684\u60c5\u51b5<br \/>\n18&#8230;<br \/>\n19<br \/>\n20.not_zero:<br \/>\n21\/\/ X0 \u4e0d\u4e3a\u96f6\u7684\u60c5\u51b5<br \/>\n22&#8230; <\/p>\n<h2 id=\"%E5%9B%9B%20%E7%89%B9%E6%AE%8A%E7%94%A8%E9%80%94%E5%AF%84%E5%AD%98%E5%99%A8\" style=\"background-color:transparent\">\u56db \u7279\u6b8a\u7528\u9014\u5bc4\u5b58\u5668<\/h2>\n<h4 id=\"ARM%20%E6%9E%B6%E6%9E%84%E4%B8%8B%E7%9A%84%E7%89%B9%E6%AE%8A%E7%94%A8%E9%80%94%E5%AF%84%E5%AD%98%E5%99%A8\">ARM \u67b6\u6784\u4e0b\u7684\u7279\u6b8a\u7528\u9014\u5bc4\u5b58\u5668<\/h4>\n<p>\u5728 ARM \u67b6\u6784\u4e2d&#xff0c;\u6709\u4e00\u4e9b\u7279\u6b8a\u7528\u9014\u7684\u5bc4\u5b58\u5668&#xff0c;\u5982\u5806\u6808\u6307\u9488&#xff08;SP&#xff09;\u3001\u94fe\u63a5\u5bc4\u5b58\u5668&#xff08;LR&#xff09;\u3001\u7a0b\u5e8f\u8ba1\u6570\u5668&#xff08;PC&#xff09;\u4ee5\u53ca\u7cfb\u7edf\u5bc4\u5b58\u5668&#xff08;SYSREG&#xff09;\u3002\u8fd9\u4e9b\u5bc4\u5b58\u5668\u5bf9\u4e8e\u63a7\u5236\u548c\u7ba1\u7406 CPU \u7684\u884c\u4e3a\u81f3\u5173\u91cd\u8981\u3002\u4e0b\u9762\u662f\u8fd9\u4e9b\u5bc4\u5b58\u5668\u7684\u8be6\u7ec6\u4ecb\u7ecd\u53ca\u4f7f\u7528\u5b9e\u4f8b&#xff1a;<\/p>\n<h3 id=\"%E5%A0%86%E6%A0%88%E6%8C%87%E9%92%88%20(SP)\">\u5806\u6808\u6307\u9488 (SP)<\/h3>\n<ul>\n<li>\n<p>\u7528\u9014:<\/p>\n<ul>\n<li>SP \u7528\u4e8e\u6307\u793a\u5f53\u524d\u5806\u6808\u7684\u9876\u90e8\u4f4d\u7f6e\u3002<\/li>\n<li>\u5728\u51fd\u6570\u8c03\u7528\u671f\u95f4&#xff0c;\u53c2\u6570\u3001\u5c40\u90e8\u53d8\u91cf\u4ee5\u53ca\u8fd4\u56de\u5730\u5740\u90fd\u4f1a\u88ab\u538b\u5165\u5806\u6808\u3002<\/li>\n<li>SP \u7684\u503c\u4f1a\u968f\u7740\u5806\u6808\u64cd\u4f5c\u7684\u53d8\u5316\u800c\u66f4\u65b0\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u5b9e\u4f8b:<\/p>\n<\/li>\n<\/ul>\n<p>asm<\/p>\n<p>\u6df1\u8272\u7248\u672c<\/p>\n<p>1\/\/ ARMv7 \u67b6\u6784\u793a\u4f8b<br \/>\n2\/\/ \u5047\u8bbe\u9700\u8981\u4fdd\u5b58\u5f53\u524d\u5806\u6808\u6307\u9488\u7684\u503c<br \/>\n3\/\/ \u7136\u540e\u4fee\u6539 SP&#xff0c;\u6700\u540e\u6062\u590d SP \u7684\u503c<br \/>\n4<br \/>\n5\/\/ \u4fdd\u5b58\u5f53\u524d\u5806\u6808\u6307\u9488\u7684\u503c\u5230 R1<br \/>\n6MOV R1, SP<br \/>\n7<br \/>\n8\/\/ \u4fee\u6539 SP&#xff0c;\u4f8b\u5982\u5411\u4e0b\u79fb\u52a8 4 \u4e2a\u5b57\u8282<br \/>\n9SUB SP, SP, #4<br \/>\n10<br \/>\n11\/\/ \u6267\u884c\u4e00\u4e9b\u64cd\u4f5c<br \/>\n12&#8230;<br \/>\n13<br \/>\n14\/\/ \u6062\u590d SP \u7684\u539f\u59cb\u503c<br \/>\n15MOV SP, R1 <\/p>\n<h3 id=\"%E9%93%BE%E6%8E%A5%E5%AF%84%E5%AD%98%E5%99%A8%20(LR)\">\u94fe\u63a5\u5bc4\u5b58\u5668 (LR)<\/h3>\n<ul>\n<li>\n<p>\u7528\u9014:<\/p>\n<ul>\n<li>LR \u901a\u5e38\u7528\u4e8e\u4fdd\u5b58\u51fd\u6570\u8c03\u7528\u7684\u8fd4\u56de\u5730\u5740\u3002<\/li>\n<li>\u5728\u51fd\u6570\u8c03\u7528\u671f\u95f4&#xff0c;\u8fd4\u56de\u5730\u5740\u4f1a\u88ab\u81ea\u52a8\u4fdd\u5b58\u5230 LR\u3002<\/li>\n<li>\u5f53\u51fd\u6570\u8fd4\u56de\u65f6&#xff0c;\u901a\u5e38\u901a\u8fc7 LR \u6765\u6062\u590d\u7a0b\u5e8f\u6267\u884c\u7684\u6d41\u7a0b\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u5b9e\u4f8b:<\/p>\n<\/li>\n<\/ul>\n<p>asm<\/p>\n<p>\u6df1\u8272\u7248\u672c<\/p>\n<p>1\/\/ ARMv7 \u67b6\u6784\u793a\u4f8b<br \/>\n2\/\/ \u5047\u8bbe\u9700\u8981\u8c03\u7528\u4e00\u4e2a\u51fd\u6570\u5e76\u8fd4\u56de<br \/>\n3<br \/>\n4\/\/ \u4fdd\u5b58 LR \u5230 R1<br \/>\n5STR LR, [R1]<br \/>\n6<br \/>\n7\/\/ \u8c03\u7528\u51fd\u6570<br \/>\n8BL my_function<br \/>\n9<br \/>\n10\/\/ \u8fd4\u56de\u540e&#xff0c;\u4ece R1 \u6062\u590d LR \u7684\u503c<br \/>\n11LDR LR, [R1] <\/p>\n<h3 id=\"%E7%A8%8B%E5%BA%8F%E8%AE%A1%E6%95%B0%E5%99%A8%20(PC)\">\u7a0b\u5e8f\u8ba1\u6570\u5668 (PC)<\/h3>\n<ul>\n<li>\n<p>\u7528\u9014:<\/p>\n<ul>\n<li>PC \u7528\u4e8e\u5b58\u50a8\u4e0b\u4e00\u6761\u6307\u4ee4\u7684\u5730\u5740\u3002<\/li>\n<li>\u5728\u6b63\u5e38\u6267\u884c\u8fc7\u7a0b\u4e2d&#xff0c;\u6bcf\u6761\u6307\u4ee4\u6267\u884c\u5b8c\u6bd5\u540e&#xff0c;PC \u4f1a\u81ea\u52a8\u66f4\u65b0\u5230\u4e0b\u4e00\u6761\u6307\u4ee4\u7684\u5730\u5740\u3002<\/li>\n<li>\u6761\u4ef6\u5206\u652f\u6307\u4ee4\u548c\u51fd\u6570\u8c03\u7528\u4e5f\u4f1a\u4fee\u6539 PC \u7684\u503c\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u5b9e\u4f8b:<\/p>\n<\/li>\n<\/ul>\n<p>asm<\/p>\n<p>\u6df1\u8272\u7248\u672c<\/p>\n<p>1\/\/ ARMv7 \u67b6\u6784\u793a\u4f8b<br \/>\n2\/\/ \u5047\u8bbe\u9700\u8981\u8df3\u8f6c\u5230\u4e00\u4e2a\u7279\u5b9a\u7684\u5730\u5740<br \/>\n3<br \/>\n4\/\/ \u5c06\u76ee\u6807\u5730\u5740\u52a0\u8f7d\u5230 R1<br \/>\n5LDR R1, &#061;target_address<br \/>\n6<br \/>\n7\/\/ \u5c06 R1 \u7684\u503c\u590d\u5236\u5230 PC<br \/>\n8MOV PC, R1 <\/p>\n<h5 id=\"%E7%B3%BB%E7%BB%9F%E5%AF%84%E5%AD%98%E5%99%A8%20(SYSREG)\">\u7cfb\u7edf\u5bc4\u5b58\u5668 (SYSREG)<\/h5>\n<ul>\n<li>\n<p>\u7528\u9014:<\/p>\n<ul>\n<li>SYSREG \u7528\u4e8e\u63a7\u5236\u548c\u76d1\u89c6 CPU \u7684\u5404\u79cd\u7279\u6027\u3002<\/li>\n<li>\u8fd9\u4e9b\u5bc4\u5b58\u5668\u53ef\u4ee5\u7528\u4e8e\u63a7\u5236\u4e2d\u65ad\u3001\u7f13\u5b58\u3001\u8c03\u8bd5\u7b49\u529f\u80fd\u3002<\/li>\n<li>\u4f8b\u5982&#xff0c;\u63a7\u5236\u4e2d\u65ad\u4f7f\u80fd\u7684\u5bc4\u5b58\u5668\u662f CTR_ELx&#xff0c;\u63a7\u5236\u7f13\u5b58\u7684\u5bc4\u5b58\u5668\u662f DC_CSW_ELx\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u5b9e\u4f8b:<\/p>\n<\/li>\n<\/ul>\n<p>asm<\/p>\n<p>\u6df1\u8272\u7248\u672c<\/p>\n<p>1\/\/ ARMv8 \u6784\u67b6\u793a\u4f8b<br \/>\n2\/\/ \u5047\u8bbe\u9700\u8981\u7981\u7528\u4e2d\u65ad<br \/>\n3<br \/>\n4\/\/ \u7981\u7528\u4e2d\u65ad<br \/>\n5MSR DAIFClr, #0x10  ; \u8bbe\u7f6e I \u4f4d\u4e3a 1&#xff0c;\u7981\u7528\u4e2d\u65ad<br \/>\n6<br \/>\n7\/\/ \u6267\u884c\u4e00\u4e9b\u4e0d\u53d7\u4e2d\u65ad\u5f71\u54cd\u7684\u64cd\u4f5c<br \/>\n8&#8230;<br \/>\n9<br \/>\n10\/\/ \u6062\u590d\u4e2d\u65ad<br \/>\n11MSR DAIFClr, #0x00  ; \u6e05\u9664 I \u4f4d&#xff0c;\u6062\u590d\u4e2d\u65ad<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb5.6k\u6b21\uff0c\u70b9\u8d5e52\u6b21\uff0c\u6536\u85cf36\u6b21\u3002\u901a\u7528\u5bc4\u5b58\u5668\u7528\u4e8e\u5b58\u50a8\u6570\u636e\u3001\u5730\u5740\u7b49\u3002\u5728 ARMv7 \u548c\u4e4b\u524d\u7248\u672c\u4e2d\uff0c\u7f16\u53f7\u4e3a R0 \u5230 R15\u3002\u5728 ARMv8 \u548c\u4e4b\u540e\u7248\u672c\u4e2d\uff0c\u7f16\u53f7\u4e3a X0 \u5230 X30\u3002R15\/X15 \u901a\u5e38\u79f0\u4e3a\u7a0b\u5e8f\u8ba1\u6570\u5668\uff08PC\uff09\u3002X30 \u901a\u5e38\u79f0\u4e3a\u94fe\u63a5\u5bc4\u5b58\u5668\uff08LR\uff09\u3002X31\/R13 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