大地址识别标志如何适用于64位计算机上的32位应用程序？

I've been reading that 32bit Windows applications are limited to 2 GB RAM because the upper 2GB of addressing space is reserved for the Windows OS (and, iirc, VRAM). If you use the /3GB flag on 32-bit WinXp you might get up to 3 GB of RAM available for addressing, but usually you have to tweak with userva values. I've heard that on 64 bit editions of Windows, with a large address aware flag in the PE header and over 4 GB of RAM, it is possible for an application to use all 4 GB of addressing space for its own memory management.I've been reading that 32bit Windows applicatio