{"id":198520,"date":"2024-05-10T00:23:05","date_gmt":"2024-05-09T16:23:05","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/198520.html"},"modified":"2024-05-10T00:23:11","modified_gmt":"2024-05-09T16:23:11","slug":"verilog-hdl%e5%a6%82%e4%bd%95%e8%ae%be%e8%ae%a1%e5%a4%a7%e4%bd%8d%e5%ae%bd%e5%a6%8264bits%e7%ae%97%e6%9c%af%e4%b9%98%e6%b3%95%e5%99%a8","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/198520.html","title":{"rendered":"Verilog HDL\u5982\u4f55\u8bbe\u8ba1\u5927\u4f4d\u5bbd\u598264bits\u7b97\u672f\u4e58\u6cd5\u5668"},"content":{"rendered":"

\"Verilog<\/p>\n

\u5728\u4f7f\u7528Verilog HDL\u8bbe\u8ba1\u5927\u4f4d\u5bbd\uff08\u598264\u4f4d\uff09\u7b97\u672f\u4e58\u6cd5\u5668\u65f6\uff0c\u8981\u70b9\u5305\u62ec\uff1a\u9009\u62e9\u5408\u9002\u7684\u4e58\u6cd5\u5668\u7ed3\u6784\u3001\u4f18\u5316\u4e58\u6cd5\u8fc7\u7a0b\u7684\u5e76\u884c\u5ea6\u3001\u91c7\u7528\u6d41\u6c34\u7ebf\u6280\u672f\u63d0\u9ad8\u8fd0\u7b97\u901f\u5ea6\u3001\u4ee5\u53ca\u5e94\u7528\u6a21\u5757\u5316\u8bbe\u8ba1\u63d0\u5347\u4ee3\u7801\u7684\u53ef\u91cd\u7528\u6027\u3002<\/strong> \u5176\u4e2d\uff0c\u9009\u62e9\u5408\u9002\u7684\u4e58\u6cd5\u5668\u7ed3\u6784<\/strong>\u662f\u57fa\u7840\u4e5f\u662f\u6700\u5173\u952e\u7684\u4e00\u6b65\u3002\u5bf9\u4e8e\u5927\u4f4d\u5bbd\u4e58\u6cd5\u5668\u7684\u8bbe\u8ba1\uff0c\u4f20\u7edf\u7684\u987a\u5e8f\u4e58\u6cd5\u7b97\u6cd5\u7531\u4e8e\u5176\u8fd0\u7b97\u901f\u5ea6\u6162\u3001\u8d44\u6e90\u6d88\u8017\u5927\u5e76\u4e0d\u9002\u5408\uff0c\u901a\u5e38\u91c7\u7528Booth\u7b97\u6cd5\u3001Wallace\u6811\u7b49\u9ad8\u6548\u7684\u4e58\u6cd5\u7b97\u6cd5\u3002\u7279\u522b\u5730\uff0cBooth\u7b97\u6cd5\u901a\u8fc7\u5bf9\u4e58\u6570\u7684\u90e8\u5206\u4f4d\u8fdb\u884c\u7f16\u7801\uff0c\u51cf\u5c11\u4e86\u90e8\u5206\u4e58\u7684\u6570\u91cf\uff0c\u6709\u6548\u964d\u4f4e\u4e86\u4e58\u6cd5\u7684\u590d\u6742\u5ea6\uff0c\u662f\u8bbe\u8ba1\u5927\u4f4d\u5bbd\u4e58\u6cd5\u5668\u65f6\u5e38\u89c1\u7684\u9009\u62e9\u3002<\/p>\n<\/p>\n

\u4e00\u3001\u9009\u62e9\u5408\u9002\u7684\u4e58\u6cd5\u5668\u7ed3\u6784<\/h3>\n<\/p>\n

\u5728\u8bbe\u8ba164\u4f4d\u7b97\u672f\u4e58\u6cd5\u5668\u65f6\uff0c\u5224\u65ad\u548c\u9009\u62e9\u6700\u9002\u5408\u7684\u4e58\u6cd5\u5668\u7ed3\u6784\u81f3\u5173\u91cd\u8981\u3002Booth\u7b97\u6cd5<\/strong>\u662f\u4e00\u79cd\u9ad8\u6548\u7684\u7b97\u6cd5\u9009\u62e9\uff0c\u5176\u901a\u8fc7\u5c06\u4e58\u6570\u7684\u6bcf\u4e2a\u4f4d\u8fdb\u884c\u7f16\u7801\uff0c\u5c06\u8fde\u7eed\u4e3a1\u7684\u4f4d\u89c6\u4e3a\u4e00\u7ec4\uff0c\u4ece\u800c\u51cf\u5c11\u4e86\u4e58\u6cd5\u8fd0\u7b97\u6240\u9700\u6267\u884c\u7684\u52a0\u6cd5\u6b21\u6570\u3002\u8fd9\u79cd\u7f16\u7801\u65b9\u5f0f\u63d0\u9ad8\u4e86\u4e58\u6cd5\u7684\u6267\u884c\u6548\u7387\uff0c\u5e76\u5bf9\u5927\u4f4d\u5bbd\u6570\u636e\u5904\u7406\u5c24\u4e3a\u91cd\u8981\u3002\u4f46Booth\u7b97\u6cd5\u7684\u5b9e\u73b0\u8f83\u4e3a\u590d\u6742\uff0c\u9700\u8981\u5bf9\u7f16\u7801\u540e\u7684\u6570\u636e\u8fdb\u884c\u76f8\u5e94\u7684\u5904\u7406\uff0c\u53ef\u80fd\u4f1a\u589e\u52a0\u8bbe\u8ba1\u7684\u96be\u5ea6\u3002<\/p>\n<\/p>\n

\u9664Booth\u7b97\u6cd5\u5916\uff0cWallace\u6811<\/strong>\u4e5f\u662f\u8bbe\u8ba1\u5927\u4f4d\u5bbd\u4e58\u6cd5\u5668\u65f6\u5e38\u7528\u7684\u4e00\u4e2a\u7ed3\u6784\uff0c\u5176\u901a\u8fc7\u5e76\u884c\u5730\u751f\u6210\u90e8\u5206\u4e58\u79ef\uff0c\u5e76\u901a\u8fc7\u6811\u5f62\u7ed3\u6784\u5e76\u884c\u5730\u8fdb\u884c\u52a0\u6cd5\u8fd0\u7b97\uff0c\u6700\u7ec8\u53ea\u9700\u8981\u8fdb\u884c\u4e00\u6b21\u957f\u4f4d\u5bbd\u52a0\u6cd5\uff0c\u4ece\u800c\u5927\u5e45\u5ea6\u63d0\u9ad8\u4e58\u6cd5\u7684\u901f\u5ea6\u3002Wallace\u6811\u7ed3\u6784\u7279\u522b\u9002\u7528\u4e8e\u5927\u4f4d\u5bbd\u6570\u636e\u7684\u8fd0\u7b97\uff0c\u5176\u5e76\u884c\u5ea6\u9ad8\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u5229\u7528\u786c\u4ef6\u8d44\u6e90\uff0c\u52a0\u901f\u4e58\u6cd5\u8fd0\u7b97\u3002<\/p>\n<\/p>\n

\u4e8c\u3001\u4f18\u5316\u4e58\u6cd5\u8fc7\u7a0b\u7684\u5e76\u884c\u5ea6<\/h3>\n<\/p>\n

\u9488\u5bf9\u5927\u4f4d\u5bbd\u7b97\u672f\u4e58\u6cd5\u5668\uff0c\u901a\u8fc7\u4f18\u5316\u4e58\u6cd5\u8fc7\u7a0b\u4e2d\u7684\u5e76\u884c\u5ea6\u53ef\u4ee5\u663e\u8457\u63d0\u9ad8\u8fd0\u7b97\u6548\u7387\u3002\u7ec6\u5206\u90e8\u5206\u4e58\u79ef\u7684\u751f\u6210<\/strong>\uff0c\u5c06\u5176\u4e0e\u540e\u7eed\u7684\u52a0\u6cd5\u8fd0\u7b97\u5e76\u884c\u5316\u5904\u7406\uff0c\u53ef\u4ee5\u6709\u6548\u5229\u7528\u8d44\u6e90\uff0c\u964d\u4f4e\u8fd0\u7b97\u5ef6\u8fdf\u3002\u6b64\u5916\uff0c\u6539\u8fdb\u90e8\u5206\u4e58\u79ef\u7684\u7d2f\u52a0\u8fc7\u7a0b<\/strong>\uff0c\u91c7\u7528\u7c7b\u4f3cWallace\u6811\u7684\u7ed3\u6784\u5e76\u884c\u5316\u7d2f\u52a0\uff0c\u4e5f\u662f\u63d0\u9ad8\u5927\u4f4d\u5bbd\u4e58\u6cd5\u5668\u8fd0\u7b97\u901f\u5ea6\u7684\u6709\u6548\u624b\u6bb5\u3002<\/p>\n<\/p>\n

\u5e76\u884c\u5ea6\u7684\u4f18\u5316\u9700\u8981\u7efc\u5408\u8003\u8651\u786c\u4ef6\u8d44\u6e90\u6d88\u8017\u548c\u8fd0\u7b97\u6548\u7387\u4e4b\u95f4\u7684\u5e73\u8861\uff0c\u8fc7\u5ea6\u7684\u5e76\u884c\u53ef\u80fd\u4f1a\u9020\u6210\u8d44\u6e90\u6d6a\u8d39\uff0c\u56e0\u6b64\u5728\u8bbe\u8ba1\u4e58\u6cd5\u5668\u65f6\u5e94\u8fdb\u884c\u6070\u5f53\u7684\u8bbe\u8ba1\u4e0e\u8c03\u6574\u3002<\/p>\n<\/p>\n

\u4e09\u3001\u91c7\u7528\u6d41\u6c34\u7ebf\u6280\u672f\u63d0\u9ad8\u8fd0\u7b97\u901f\u5ea6<\/h3>\n<\/p>\n

\u6d41\u6c34\u7ebf\u6280\u672f<\/strong>\u7684\u5e94\u7528\u662f\u63d0\u9ad864\u4f4d\u7b97\u672f\u4e58\u6cd5\u5668\u8fd0\u7b97\u901f\u5ea6\u7684\u91cd\u8981\u624b\u6bb5\u3002\u901a\u8fc7\u5c06\u4e58\u6cd5\u8fd0\u7b97\u7684\u4e0d\u540c\u9636\u6bb5\uff08\u5982\uff1a\u7f16\u7801\u3001\u90e8\u5206\u4e58\u79ef\u751f\u6210\u3001\u90e8\u5206\u4e58\u79ef\u7d2f\u52a0\u3001\u6700\u7ec8\u52a0\u6cd5\uff09\u5206\u522b\u5b9e\u73b0\u5728\u6d41\u6c34\u7ebf\u7684\u4e0d\u540c\u7ea7\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u5f97\u6bcf\u4e00\u65f6\u949f\u5468\u671f\u5185\u540c\u65f6\u6709\u591a\u4e2a\u64cd\u4f5c\u5728\u4e0d\u540c\u7684\u6d41\u6c34\u7ebf\u7ea7\u4e2d\u5e76\u884c\u6267\u884c\uff0c\u4ece\u800c\u63d0\u9ad8\u6574\u4f53\u7684\u8fd0\u7b97\u901f\u5ea6\u3002<\/p>\n<\/p>\n

\u5e94\u7528\u6d41\u6c34\u7ebf\u6280\u672f\u65f6\uff0c\u9700\u8981\u6ce8\u610f\u63a7\u5236\u5404\u9636\u6bb5\u7684\u8fd0\u7b97\u65f6\u95f4\u5c3d\u53ef\u80fd\u5747\u8861\uff0c\u907f\u514d\u56e0\u67d0\u4e00\u9636\u6bb5\u7684\u5904\u7406\u901f\u5ea6\u8f83\u6162\u800c\u6210\u4e3a\u6574\u4e2a\u4e58\u6cd5\u8fd0\u7b97\u7684\u74f6\u9888\u3002\u6b64\u5916\uff0c\u6d41\u6c34\u7ebf\u7684\u5f15\u5165\u4f1a\u589e\u52a0\u8bbe\u8ba1\u7684\u590d\u6742\u5ea6\uff0c\u9700\u8981\u4ed4\u7ec6\u8bbe\u8ba1\u6d41\u6c34\u7ebf\u9636\u6bb5\u95f4\u7684\u6570\u636e\u4f20\u9012\u548c\u63a7\u5236\u903b\u8f91\u3002<\/p>\n<\/p>\n

\u56db\u3001\u5e94\u7528\u6a21\u5757\u5316\u8bbe\u8ba1\u63d0\u5347\u4ee3\u7801\u53ef\u91cd\u7528\u6027<\/h3>\n<\/p>\n

\u6a21\u5757\u5316\u8bbe\u8ba1\u5728\u8bbe\u8ba1\u5927\u4f4d\u5bbd\u7b97\u672f\u4e58\u6cd5\u5668\u65f6\u5c24\u4e3a\u91cd\u8981\u3002\u901a\u8fc7\u5c06\u4e58\u6cd5\u5668\u8bbe\u8ba1\u62c6\u89e3\u6210\u591a\u4e2a\u5c0f\u6a21\u5757\uff0c\u5982\u7f16\u7801\u5668\u3001\u90e8\u5206\u4e58\u79ef\u751f\u6210\u5668\u3001\u7d2f\u52a0\u5668\u7b49\uff0c\u4e0d\u4ec5\u53ef\u4ee5\u63d0\u5347\u8bbe\u8ba1\u7684\u7075\u6d3b\u6027\u548c\u53ef\u7ef4\u62a4\u6027\uff0c\u8fd8\u80fd\u589e\u5f3a\u4ee3\u7801\u7684\u53ef\u91cd\u7528\u6027<\/strong>\u3002\u6bcf\u4e2a\u6a21\u5757\u53ef\u4ee5\u5355\u72ec\u8bbe\u8ba1\u548c\u9a8c\u8bc1\uff0c\u7b80\u5316\u4e86\u590d\u6742\u4e58\u6cd5\u5668\u8bbe\u8ba1\u8fc7\u7a0b\u4e2d\u7684\u8c03\u8bd5\u548c\u6d4b\u8bd5\u5de5\u4f5c\u3002<\/p>\n<\/p>\n

\u5728\u6a21\u5757\u5316\u8bbe\u8ba1\u4e2d\uff0c\u63a5\u53e3\u5b9a\u4e49\u6e05\u6670\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002\u5408\u7406\u7684\u63a5\u53e3\u8bbe\u8ba1\u53ef\u4ee5\u4f7f\u5404\u4e2a\u6a21\u5757\u4e4b\u95f4\u7684\u8fde\u63a5\u548c\u6570\u636e\u4f20\u9012\u66f4\u52a0\u987a\u7545\uff0c\u6709\u5229\u4e8e\u4e58\u6cd5\u5668\u6574\u4f53\u8bbe\u8ba1\u7684\u4f18\u5316\u548c\u8c03\u6574\u3002<\/p>\n<\/p>\n

\u901a\u8fc7\u4ee5\u4e0a\u65b9\u6cd5\uff0c\u8bbe\u8ba1\u51fa\u768464\u4f4d\u7b97\u672f\u4e58\u6cd5\u5668\u4e0d\u4ec5\u8fd0\u7b97\u901f\u5ea6\u5feb\uff0c\u800c\u4e14\u5177\u6709\u8f83\u597d\u7684\u6269\u5c55\u6027\u548c\u7075\u6d3b\u6027\uff0c\u80fd\u6ee1\u8db3\u591a\u79cd\u5e94\u7528\u573a\u666f\u7684\u9700\u8981\u3002<\/p>\n<\/p>\n

\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n

\u5982\u4f55\u5728Verilog HDL\u4e2d\u8bbe\u8ba1\u4e00\u4e2a\u9ad8\u4f4d\u5bbd\u7684\uff08\u4f8b\u598264 bits\uff09\u7b97\u672f\u4e58\u6cd5\u5668\uff1f<\/strong><\/p>\n

    \n
  1. \n

    \u6211\u8be5\u5982\u4f55\u5b9a\u4e49\u4e00\u4e2a64\u4f4d\u5bbd\u7684\u4e58\u6cd5\u5668\u8f93\u5165\u548c\u8f93\u51fa\uff1f<\/strong>
    \n\u8981\u5b9a\u4e49\u4e00\u4e2a64\u4f4d\u5bbd\u7684\u4e58\u6cd5\u5668\u8f93\u5165\u548c\u8f93\u51fa\uff0c\u53ef\u4ee5\u4f7f\u7528Verilog HDL\u4e2d\u7684reg [63:0]<\/code>\u8bed\u6cd5\u3002\u8fd9\u5c06\u521b\u5efa\u4e00\u4e2a64\u4f4d\u5bbd\u7684\u5bc4\u5b58\u5668\u53d8\u91cf\uff0c\u7528\u4e8e\u5b58\u50a8\u8f93\u5165\u548c\u8f93\u51fa\u6570\u636e\u3002<\/p>\n<\/li>\n

  2. \n

    \u6211\u8be5\u5982\u4f55\u5b9e\u73b0\u4e58\u6cd5\u8fd0\u7b97\uff1f<\/strong>
    \n\u5728\u8bbe\u8ba1\u4e58\u6cd5\u5668\u7684Verilog\u4ee3\u7801\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u5185\u7f6e\u7684\u4e58\u6cd5\u8fd0\u7b97\u7b26*<\/code>\u6765\u8fdb\u884c\u4e58\u6cd5\u8fd0\u7b97\u3002\u4f8b\u5982\uff0c\u5bf9\u4e8e\u4e24\u4e2a64\u4f4d\u5bbd\u7684\u8f93\u5165\u53d8\u91cfa\u548cb\uff0c\u53ef\u4ee5\u4f7f\u7528c = a * b;<\/code>\u6765\u8ba1\u7b97\u4e58\u6cd5\u7ed3\u679c\u3002<\/p>\n<\/li>\n

  3. \n

    \u5982\u4f55\u5904\u7406\u4e58\u6cd5\u8fd0\u7b97\u7684\u6ea2\u51fa\u548c\u622a\u65ad\uff1f<\/strong>
    \n\u5728\u8bbe\u8ba1\u4e00\u4e2a64\u4f4d\u5bbd\u7684\u4e58\u6cd5\u5668\u65f6\uff0c\u9700\u8981\u7279\u522b\u5173\u6ce8\u4e58\u6cd5\u8fd0\u7b97\u7684\u6ea2\u51fa\u548c\u622a\u65ad\u3002\u53ef\u4ee5\u4f7f\u7528Verilog\u4e2d\u7684$signed<\/code>\u51fd\u6570\u5c06\u65e0\u7b26\u53f7\u4e58\u79ef\u8f6c\u6362\u4e3a\u6709\u7b26\u53f7\u6570\uff0c\u5e76\u4f7f\u7528$unsigned<\/code>\u51fd\u6570\u5c06\u6709\u7b26\u53f7\u6570\u8f6c\u6362\u56de\u65e0\u7b26\u53f7\u6570\u3002\u8fd9\u6837\u53ef\u4ee5\u786e\u4fdd\u6b63\u786e\u5904\u7406\u6ea2\u51fa\u548c\u622a\u65ad\u7684\u60c5\u51b5\u3002<\/p>\n<\/li>\n

  4. \n

    \u5982\u4f55\u6d4b\u8bd5\u8bbe\u8ba1\u7684\u6b63\u786e\u6027\uff1f<\/strong>
    \n\u4e3a\u4e86\u6d4b\u8bd5\u8bbe\u8ba1\u7684\u6b63\u786e\u6027\uff0c\u53ef\u4ee5\u7f16\u5199\u4e00\u4e2a\u6d4b\u8bd5\u53f0\u6765\u9a8c\u8bc1\u4e58\u6cd5\u5668\u7684\u529f\u80fd\u3002\u53ef\u4ee5\u63d0\u4f9b\u4e00\u7cfb\u5217\u6d4b\u8bd5\u7528\u4f8b\uff0c\u5305\u62ec\u6b63\u6570\u548c\u8d1f\u6570\u7684\u4e58\u6cd5\u8fd0\u7b97\u3001\u6ea2\u51fa\u548c\u622a\u65ad\u7684\u60c5\u51b5\u7b49\u3002\u901a\u8fc7\u68c0\u67e5\u4e58\u6cd5\u5668\u7684\u8f93\u51fa\u662f\u5426\u4e0e\u9884\u671f\u7ed3\u679c\u5339\u914d\uff0c\u53ef\u4ee5\u9a8c\u8bc1\u8bbe\u8ba1\u7684\u6b63\u786e\u6027\u3002<\/p>\n<\/li>\n

  5. \n

    \u6211\u8be5\u5982\u4f55\u4f18\u5316\u4e58\u6cd5\u5668\u7684\u6027\u80fd\u548c\u9762\u79ef\uff1f<\/strong>
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