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中国DOS联盟论坛 » DOS启动盘 & LOGO技术 (启动盘室) » [Discussion] What exactly does EMM386.EXE do? Is there still any value in using it now? View 1,491 Replies 7
Original Poster Posted 2005-02-22 00:00 ·  中国 江苏 宿迁 电信
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After reading some articles, I know that EMM386.EXE is to use part of the extended memory to simulate expanded memory to meet the needs of some programs. Then, which programs must use expanded memory? Now, when making a boot disk, how big is the problem if EMM386.EXE is not used?
Floor 2 Posted 2005-02-23 00:00 ·  美国
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EMM386 provides expanded memory as well as UMB memory, which is more useful.
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Floor 3 Posted 2005-02-23 00:00 ·  中国 江苏 宿迁 泗洪县 电信
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Thanks to Wengier's reply, can you specifically introduce the use of EMM386.EXE?
Floor 4 Posted 2005-02-23 00:00 ·  中国 上海 徐汇区 电信
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UMB can also be provided by UMBPCI. The remaining somewhat useful function of emm386 is to provide protected mode, after all, sometimes protected mode programs are still needed.
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Floor 5 Posted 2005-02-24 00:00 ·  中国 江苏 宿迁 电信
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Little brother is really green, can you give an example of using protected mode? It seems that it is rarely used in DOS boot disks?
Floor 6 Posted 2005-03-05 00:00 ·  中国 上海 徐汇区 电信
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The boot disk made by Wengier has the function of providing protected mode. Only in protected mode can 32-bit programs be used, such as programs compiled with DJGPP, and 32-bit RAR, etc. To start Win9x, protected mode must be used, but generally, Win9x will automatically provide protected mode when it starts. In addition, CWSDPMI and so on built in DJGPP can also provide protected mode, which is much better than EMM386.
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Floor 7 Posted 2005-03-16 00:00 ·  中国 陕西 西安 电信
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What is DJGPP? I'm too noob, please give me some pointers. Also, isn't there a RAR for DOS? Why do we have to use 32-bit ones?
Floor 8 Posted 2005-08-21 21:54 ·  中国 北京 航天信息网
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How to use expanded memory??
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