①宠物寄养：一门“更有确定性”的生意
Current browse context: cs.PL。关于这个话题，safew官方版本下载提供了深入分析
1.1 环境初探：Ling Studio。关于这个话题，一键获取谷歌浏览器下载提供了深入分析
Besides the Test PLA, the 386 has another PLA called the Entry PLA that maps opcodes to microcode entry points. One of its input bits is a "protected mode" flag. Many instructions have both a real-mode and a protected-mode entry point -- for instance, MOV ES, reg maps to address 009 (a single microcode line) in real mode, but to 580 (which initiates a full descriptor load with protection tests) in protected mode. The trick that makes V86 work is to define this flag as: