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中国DOS联盟论坛 The time now is 2026-10-28 03:18 |
47,815 topics / 349,929 posts / today 1 new / 48,290 members |
| 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? |
| Printable Version 1,690 / 7 |
| Floor1 xuchyu | Posted 2005-02-22 00:00 |
| 初级用户 Posts 5 Credits 126 | |
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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?
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| Floor2 Wengier | Posted 2005-02-23 00:00 |
| 系统支持 Posts 10,521 Credits 27,736 | |
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EMM386 provides expanded memory as well as UMB memory, which is more useful.
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| Floor3 xuchyu | Posted 2005-02-23 00:00 |
| 初级用户 Posts 5 Credits 126 | |
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Thanks to Wengier's reply, can you specifically introduce the use of EMM386.EXE?
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| Floor4 brglng | Posted 2005-02-23 00:00 |
| 银牌会员 Posts 466 Credits 1,200 From 上海 | |
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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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| Floor5 xuchyu | Posted 2005-02-24 00:00 |
| 初级用户 Posts 5 Credits 126 | |
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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?
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| Floor6 brglng | Posted 2005-03-05 00:00 |
| 银牌会员 Posts 466 Credits 1,200 From 上海 | |
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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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| Floor7 xuchyu | Posted 2005-03-16 00:00 |
| 初级用户 Posts 5 Credits 126 | |
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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?
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| Floor8 tianxiapanda | Posted 2005-08-21 21:54 |
| 新手上路 Posts 2 Credits 2 | |
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How to use expanded memory??
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