首页 > TAG信息列表 > IA32

从__builtin_ia32_lzcnt_u16到lzcntw指令

内联函数的原始定义 gcc\config\i386\i386-builtin.def /* LZCNT */ BDESC (OPTION_MASK_ISA_LZCNT, CODE_FOR_lzcnt_hi, "__builtin_ia32_lzcnt_u16", IX86_BUILTIN_LZCNT16, UNKNOWN, (int) UINT16_FTYPE_UINT16) /* Same as above, for backward compatibility. */ BD

内存管理——分页机制的启用

32位分页模式:CR0.PE=1, CR0.PG=1, CR4.PAE=0   PAE分页模式:CR0.PE=1, CR0.PG=1, CR4.PAE=1, IA32_EFER.LME=0   4级分页模式:CR0.PE=1, CR0.PG=1, CR4.PAE=1, IA32_EFER.LME=1, CR4.LA57=0   5级分页模式:CR0.PE=1, CR0.PG=1, CR4.PAE=1, IA32_EFER.LME=1, CR4.LA57=1     其他

web浏览器程序打包成客户端可安装程序

这边主要是有一个客户,需要在电视机上安装一个客户端,含有视频直播功能;刚开始我们采用的webapp打包成apk安装在电视机上,发现摄像头监控画面根本无法播放(apk在手机上可以正常播放视频);排除一些原因之后,初步判断是电视机的内置浏览器内核是阉割版,不支持视频的播放,必须切换内核才行,

IA32 x86

The Intel processor line, colloquially referred to as x86, has followed a long, evolutionary development. It started with one of the first single-chip, 16-bit microprocessors, where many compromises had to be made due to the limited capabilities of integ