EA表示有效地址，这是从主ppe程序中看到的主存地址。

EA stands for effective address, which is a main memory address as viewed from the main PPE program.

youdao

但是当将相同的代码移植到一台主存地址从0x8000000开始的68030机器上时，这些代码就会死掉。

But the same code died horribly when someone introduced a 68030 machine with main memory starting at 0x8000000.

youdao

这个请求会要求将 sizeof(data) 字节的数据从 argp 所指向的主存地址处拷贝到 data 对象中。

This request asks for sizeof(data) bytes of data copied from the address in main memory denoted by argp to be copied into the object data.

youdao