/I:n |
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| This | parameter | enables |
| interrupt | sharing. | If |
| n =1, | interrupt |
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| sharing | is |
| enabled. |
| If | n =0, | interrupt | sharing | is | disabled. The | |||||||||||||
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| default | value |
| is | 0 . | Set | this | parameter |
| to | enabled | when | the | IDE | ||||||||||
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| interrupt | must | be |
| shared | with | another | device. | For | example, | a | |||||||||||||
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| 9577 | computer | with | IDE | could | share | interrupt | 14 |
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| IBM |
| SCSI |
| Adapter | /A. |
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Using | Microsoft |
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| Extensions |
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Microsoft |
| (MSCDEX.EXE) | is | an | executable |
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program that works in conjunction with | the | device | driver |
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(IBMIDECD.SYS) | to |
| enable |
| your | computer |
| to | read | CDs | as |
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| disks. |
| MSCDEX |
| is |
| designed | for | DOS |
| and | Windows. |
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The | CDSETUP |
| program |
| automatically |
| adds | an |
| MSCDEX |
| statement | to |
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your AUTOEXEC.BAT file. You can modify |
| the | default | MSCDEX |
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parameters | to | customize | your | installation. | This | section | explains | the |
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function | of |
| each |
| parameter. | A | text | editor | can |
| be | used | to | modify | the | ||||||||||
MSCDEX | statement | in |
| your |
| AUTOEXEC.BAT | file. |
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The following is the syntax |
| of | the |
| MSCDEX.EXE | entry | in |
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AUTOEXEC.BAT | where |
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| [drive:][path]MSCDEX.EXE |
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location | (drive |
| and |
| directory) |
| of | the | MSCDEX.EXE | file. |
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| [drive:] [path]MSCDEX.EXE /D:device name |
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| [/M:n] [/E] [/V] [/L:drive letter] |
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| [/K][/S] |
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(Do |
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| truncate |
| the | actual |
| device | driver | entry. | Place | the | complete | |||||||||||
entry | on |
| one | line |
| in | the | AUTOEXEC.BAT | file.) |
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Use | the | following |
| options |
| to |
| configure | the | device | driver. |
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/D:device | name |
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This parameter specifies the name | of | the | drive | (eight | |||||||||||||
characters | maximum). | This |
| name must | be | identical | to | the |
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device | name |
| specified | in | the | device | driver | in | the | CONFIG.SYS |
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file. | For example: |
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| C:\MSCDEX.EXE /D:IBMCD1 |
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You |
| might | support | multiple |
| drives | (of | different | types) | ||||||||
by | installing | each | of | their | device | drivers | (naming | them different | |||||||||
names) | and | placing | a | /D: | device name |
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| in | the | MSCDEX | line | for | |||||
each |
| drive. | For | example, | if | you | wanted | to | support | an | IBM | IDE | |||||
IBM SCSI | drive, | your |
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CONFIG.SYS | file | might | have | these | statements: |
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DEVICE=C:\IBMIDECD.SYS /D:IDE_CD
DEVICE=C:\IBMCDROM.SYS /D:SCSI_CD
and your AUTOEXEC.BAT file could include this statement:
C:\MSCDEX /D:IDE_CD /D:SCSI_CD
/M: nn
This | parameter | specifies | the | number of |
| sector | buffers | for |
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temporary | storage | of | the | most | recent | CD | data. For | example, | to | ||||||
specify | 12 | sector | buffers | you | would |
| use: |
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| C:\MSCDEX.EXE /D:IBMCD1 |
| /M:12 |
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The | CDSETUP | program | sets | this | value | to | 10. | The | default |
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value | for | MSCDEX | with no | /M | parameter | is |
| 4. |
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You | can | improve | drive | performance | when | you | use |
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larger | default | values. | However, | each | buffer | uses | about | 2 KB | of | ||||||
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| Part 3: | Appendixes |