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发表于 2015-7-22 04:55:11
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本帖最后由 asqw101451 于 2015-7-22 05:03 编辑
和emm386应该用/b参数,和umbpci用/w参数。 XMGR is a DOS driver that works as an XMS memory manager. It supports V3.70+ UMBPCI by Uwe Sieber. After UMBPCI enables upper-memory, XMGR can load there directly and provide both upper and XMS memory for a DOS system. XMGR uses an "I/O catcher" with UMBPCI, to intercept diskette or hard disk I/O above 640K. Such I/O is done through a low memory area, to avoid DMA trouble in UMBPCI "Shadow RAM". XMGR also supports V4.49 and V4.95 EMM386 (MS-DOS V6.22 or V7.10). With JEMM386, XMGR using its /B switch can first "boot" into temporary space. After JEMM386 enables upper-memory, XMGR loads there with no /B switch, copies all its "boot" data, and takes-over XMS work. Only its XMS "Handles" table stays in low memory, so EMM386 can always find them at fixed addresses. For a small XMS-only system, XMGR can also load entirely in low memory.这是说明。 |
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