"We know that's all going to change," he said.
Intel documentation describes the 386's Protection Test Unit as a component that "implements fast testing of complex memory protection functions." It is mostly composed of a PLA (Programmable Logic Array), referred to as Test PLA by Intel, that is physically visible by its regular appearance on the die. This single piece of combinational logic replaces what would otherwise be dozens of multi-cycle conditional branches in the microcode. Instead of testing privilege rules sequentially, the microcode issues a single protection test operation, and the PLA evaluates all applicable rules in parallel, producing a complete decision in one evaluation: continue, fault, or redirect to a gate handler.
。业内人士推荐91视频作为进阶阅读
Bits [13:2]: A 12-bit microcode redirect address -- a fault handler (e.g., 0x85D for #GP, 0x870 for #NP) or a gate dispatch routine (e.g., 0x5BE for a 386 call gate).
非比较排序，适用于整数且范围不大的情况：。服务器推荐是该领域的重要参考
At its core, a stream is just a sequence of data that arrives over time. You don't have all of it at once. You process it incrementally as it becomes available.。搜狗输入法2026对此有专业解读
Continue reading...