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| software:dos [2013/09/29 21:14] – superwizard | software:dos [2013/09/30 00:42] (current) – superwizard |
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| | ====== Attempts at Use of Emm386 ====== |
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| | <code> |
| | DEVICE=C:\DOS\EMM386.exe on 2304 frame=d000 /ram /x=c000-cfff /i=b000-b700 /D=64 /NOEMS x=de00-dfff |
| | rem - did not boot - DEVICE=C:\DOS\EMM386.exe on 2304 frame=d000 /ram /x=c000-cfff /i=e000-efff /NOEMS x=de00-dfff |
| | rem Original - DEVICE=C:\DOS\EMM386.exe on 2304 frame=d000 /ram /x=c000-cfff /i=e000-efff /i=b000-b700 /D=64 /NOEMS x=de00-dfff |
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| | </code> |
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| ====== emm386 ====== | ====== emm386 ====== |
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| | /D=64 | Specifies how many kilobytes of memory should be reserved for buffered direct memory access (DMA). Discounting floppy-disk DMA, this value should reflect the largest DMA transfer that will occur while EMM386 is active. Valid values for nnn are in the range 16 through 256. The default value is 16. \\ From: http://technet.microsoft.com/en-us/library/cc722864.aspx | d= nnn | | | /D=64 | Specifies how many kilobytes of memory should be reserved for buffered direct memory access (DMA). Discounting floppy-disk DMA, this value should reflect the largest DMA transfer that will occur while EMM386 is active. Valid values for nnn are in the range 16 through 256. The default value is 16. \\ From: http://technet.microsoft.com/en-us/library/cc722864.aspx | d= nnn | |
| | /NOEMS | STARTING EMM386 WITH THE NOEMS SWITCH INSTEAD OF THE RAM SWITCH \\ If you do not use programs that require expanded memory (EMS), start EMM386 with the NOEMS switch. Doing so can give you an additional 64K of UMBs, because the NOEMS switch instructs EMM386 not to create an EMS page frame in the upper memory area. If you start EMM386 with the NOEMS switch, programs will be unable to use expanded memory, even when they are running with Windows. \\ From: http://support.microsoft.com/kb/77083 | | | | /NOEMS | STARTING EMM386 WITH THE NOEMS SWITCH INSTEAD OF THE RAM SWITCH \\ If you do not use programs that require expanded memory (EMS), start EMM386 with the NOEMS switch. Doing so can give you an additional 64K of UMBs, because the NOEMS switch instructs EMM386 not to create an EMS page frame in the upper memory area. If you start EMM386 with the NOEMS switch, programs will be unable to use expanded memory, even when they are running with Windows. \\ From: http://support.microsoft.com/kb/77083 | | |
| | x=de00-dfff | \\ From: http://technet.microsoft.com/en-us/library/cc722864.aspx | | | | x=de00-dfff | Prevents EMM386 from using a particular range of segment addresses for an EMS page or for UMBs. Valid values for mmmm and nnnn are in the range A000h through FFFFh and are rounded down to the nearest 4-kilobyte boundary. The x switch takes precedence over the i switch if the two ranges overlap. \\ From: http://technet.microsoft.com/en-us/library/cc722864.aspx | x = mmmm - nnnn| |
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