{"provider_name":"Hatena Blog","url":"https://computeralgebra.hatenablog.com/entry/2025/07/16/214719","blog_title":"\u975e\u5c02\u9580\u7684\u30b7\u30f3\u30ae\u30e5\u30e9\u30ea\u30c6\u30a3\u30fc\u7814\u7a76\u6240","width":"100%","author_url":"https://blog.hatena.ne.jp/computeralgebra/","version":"1.0","title":"X68000(27)","provider_url":"https://hatena.blog","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fcomputeralgebra.hatenablog.com%2Fentry%2F2025%2F07%2F16%2F214719\" title=\"X68000(27) - \u975e\u5c02\u9580\u7684\u30b7\u30f3\u30ae\u30e5\u30e9\u30ea\u30c6\u30a3\u30fc\u7814\u7a76\u6240\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","categories":["X68000","ChatGPT"],"blog_url":"https://computeralgebra.hatenablog.com/","published":"2025-07-16 21:47:19","image_url":"https://m.media-amazon.com/images/I/215gGcYXiIL._SL500_.jpg","author_name":"computeralgebra","type":"rich","height":"190","description":"X68000 \u7248\u306e\u7dda\u3092\u63cf\u753b\u3059\u308b\u95a2\u6570\u3067\u4f7f\u3063\u3066\u3044\u308b\u4e57\u7b97\u30fb\u9664\u7b97\u3092\u6d6e\u52d5\u5c0f\u6570\u70b9\u306e\u30d5\u30a1\u30f3\u30af\u30b7\u30e7\u30f3\u30b3\u30fc\u30eb(\u3053\u306e\u4e2d\u306b\u4e57\u7b97\u30fb\u9664\u7b97\u3082\u542b\u307e\u308c\u3066\u3044\u308b)\u306e\u547c\u3073\u51fa\u3057\u306b\u5909\u66f4\u3057\u307e\u3057\u305f\u3002 \u4e57\u7b97 asm( \"sys_multiply_a:\\n\\t\" \"move.l %d1, -(%sp)\\n\\t\" // \u30b9\u30bf\u30c3\u30af\u306b d1 \u3092\u4fdd\u5b58 \"move.l 8(%sp), %d0\\n\\t\" // d0 = x1 \"move.l 12(%sp), %d1\\n\\t\" // d1 = x2 \"dc.w 0xfe00\\n\\t\" // __LMUL \"move.l (%sp)+, %d1\\n\\t\" // \u30b9\u30bf\u30c3\u30af\u304b\u3089 d1 \u3092\u623b\u3059 \"rts\\n\\t\"\u2026"}