To separate it out into parts, use mfc_ea2h to extract the higher-order bits and mfc_ea2l to extract the lower-order bits.
要将这个地划分成不同的部分，需要使用mfc_ea2h提取出高位，使用mfc_ea2l提取出低位。
2
Given this unequal resource distribution, highland Incas needed access to the products of lower, warmer climatic zones in order to enlarge the variety and quantity of their foodstuffs.
考虑到资源分配的不平等，高原印加人需要获得海拔较低、较温暖的区域的产品，以扩大食物的种类和数量。
3
On a 32-bit system, this sets all the bits, but on a 64-bit system, only the lowerorder 32-bits are set, resulting in the value 0x00000000ffffffff.