关于Far pointers的应用

benbeu

关于Far pointers的应用 [复制链接]

vxworks对Far pointers有如下说明，谁能帮我详细解释一下，不是要翻译哟，谢谢呵呵

　/*                         Far pointers
*
* Specify here which pointers may be far, if any.
* Far pointers are usually relevant only to 80x86 architectures.
*
* Specify FAR_LEVEL:
*   0 -        if using a flat memory model or having no far pointers.
*   1 -        if only the socket window may be far
*   2 -        if only the socket window and caller's read/write buffers
*                may be far.
*   3 -        if socket window, caller's read/write buffers and the
*                caller's I/O request packet may be far
*/

漂叶

Far pointers应该是DOS时代的遗留吧。现在应该不会用到了。