1ac28e0fe1
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@487 6ac86273-5f31-0410-b378-82cca8765d1b
127 lines
2.6 KiB
Plaintext
127 lines
2.6 KiB
Plaintext
Advanced - FreeDOS specific - CONFIG.SYS processing
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a new command ECHO
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ECHO does ECHO its argument (surprised ?-) and is executed at
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the time the DEVICE= lines are executed.
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use it similarly to
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ECHO loading driver 1
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device=Driver1.sys
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ECHO driver1 successfully loaded
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an undocumented command SCREEN=xx
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SCREEN= switches into videomode xxx (INT10/11xx/000)
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useful
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SCREEN=0x11 -- 28 lines
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SCREEN=0x12 -- 43/50 lines (on EGA/VGA)
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the following advanced config.sys processing options are available:
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normal
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FILES=20
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DEVICE=MyNetWorkDriver.sys
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'?' - ALWAYS ask if a single line shall be executed
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FILES=20
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?DEVICE=MyNetWorkDriver.sys
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'!' - NEVER ask if a single line shall be executed, even if single stepping
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!FILES=20
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!DOS=HIGH,UMB
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!BUFFERS=30
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DEVICE=MyNetWorkDriver.sys
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configuration management - you may compose several configurations,
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using following special commands:
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MENU
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MENU select your configuration
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MENU
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MENU use (0) for basic configuration
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MENU use (1) for CDROM operation
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MENU use (2) for NETWORK configuration
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MENU
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MENUDEFAULT=0,1 ( configuration 0, wait 1 second)
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1? rem CDROM
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1? device=CDROM.SYS
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2? rem NETWORK
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2? device=MyNetworkDriver.SYS
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Although this is definitively worse then MSDOS menuing possibilities,
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IMHO it's better then nothing. Unfortunately your MENU text gets completely
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uppercase..
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It's also possible to combine menu options, to avoid writing thing every
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time again.
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constructions like 0?devicehigh?=cdrom.sys are also possible
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("if menu option 0 chosen, ask if you want to load this driver")
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the selected configuration can be determined in AUTOEXEC.BAT in the
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environment variable CONFIG like
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if %CONFIG% == 0 echo configuration 0 selected
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however, if you have no menu's in config.sys, then %config% has no value,
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thus resulting in "IF == 0 echo configuration 0 selected."
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(which causes syntax errors as there's nothing on the left side of == )
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That's why you better use something like:
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if [%config%]==[0] echo configuration 0 selected. -or-
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if "%config%"=="0" echo configuration 0 selected.
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then if there is no menu you have: "IF []==[0] echo configuration 0 selected."
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(which will of course output nothing)
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thus my config.sys now looks like
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!files=20
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!dos=high,umb
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!break=off
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!buffers=30
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!screen=0x12
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!lastdrive=z
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!shellhigh=a:\command.com /p /e:512 /MSG
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MENU
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MENU 0 - SoftIce+HIMEM+Network (default)
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MENU 1 - SoftIce+HIMEM
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MENU 2 - HIMEM+EMM386
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MENU
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MENUDEFAULT=0,0
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01? DEVICE=C:\NUMEGA\S-ICE.EXE /TRA 3000 /SYM 400
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012?DEVICE=himem.exe
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01? DEVICE=UMBPCI.SYS
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2? DEVICE=EMM386.EXE NOEMS
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0?device=c:\ntclient\ifshlp.sys
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DEVICE=CDROM.SYS /D:MSCD000
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2002-11-28 - Tom Ehlert
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