Nicht Sehr Gut's Comments added
Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@1311
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41
README
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README
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@ -5,8 +5,8 @@ NOTE:
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=====
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While we hope that, one day, DosBox will run virtually all programs
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ever made for the PC...we are not there yet. At present, DosBox run on a 1
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Gigahertz PC is roughly the equivalent of a 16MHz 386 PC. While the 0.60
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ever made for the PC...we are not there yet. At present, DosBox run on a 1.7
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Gigahertz PC is roughly the equivalent of a 25MHz 386 PC. While the 0.60
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release has added support for "protected mode" allowing for more complex and
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recent programs, but note that this support is early in development and
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nowhere near as complete as the support for 386 real-mode games (or
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@ -62,17 +62,20 @@ Internal Programs:
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dosbox supports most of the DOS commands found in command.com.
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In addition, the following commands are available:
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MOUNT Driveletter sourcedirectory [-t type] [-aspi] [-ioctl]
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[-usecd number] [-size drivesize] [-label drivelabel]
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MOUNT "Emulated Drive letter" "Real Drive or Directory"
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[-t type] [-aspi] [-ioctl] [-usecd number] [-size drivesize]
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[-label drivelabel]
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MOUNT -cd
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Program to mount local directories as drives inside DOSBox.
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Driveletter
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"Emulated Drive letter"
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The driveletter inside dosbox (eg. C).
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sourcedirectory
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"Real Drive letter or Directory"
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The local directory you want to have inside dosbox.
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(Under Win32 usually the same as "Emulated Drive letter".
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For Example: mount c c:\ )
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-t type
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Type of the mounted directory. Supported are: dir (standard),
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@ -104,7 +107,19 @@ MOUNT -cd
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Note: It's possible to mount a local directory as cdrom drive.
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Hardware support is then missing.
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Examples:
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Basically, MOUNT allows you to connect real hardware to DosBox's "emulated"
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PC. So MOUNT C C:\ tells DosBox to use your real C: drive as drive C: in
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DosBox. It also allows you to change the drive's letter identification for
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programs that demand specific drive letters.
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For example: Touche: Adventures of The Fifth Musketeer must be run on your C:
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drive. Using DosBox and it's mount command, you can trick into thinking it
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is on C drive while placing it where you want it. For example, if the game
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were in D:\TOUCHE, you can use the command MOUNT C D:\ would allow you to
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run Touche from the D drive.
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General MOUNT Examples:
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1. To mount c:\floppy as a floppy :
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mount a c:\floppy -t floppy
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2. To mount system cdrom drive E as cdrom drive D in dosbox:
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@ -114,7 +129,9 @@ MOUNT -cd
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mount d /media/cdrom -t cdrom -usecd 0
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4. To mount a drive with 870 mb free diskspace (rarely needed! experts only):
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mount c d:\ -size 4025,127,16513,1700
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5. to mount /home/dos/dosgames as drive C in dosbox:
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mount c /home/dos/dosgames
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MEM
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Program to display the amount of free memory.
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@ -157,8 +174,12 @@ CTRL-F7 Decrease frameskip.
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CTRL-F8 Increase frameskip.
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CTRL-F9 Kill dosbox.
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CTRL-F10 Capture/Release the mouse.
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CTRL-F11 Slow down emulation.
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CTRL-F12 Speed up emulation.
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CTRL-F11 Slow down emulation (Decrease DOSBox Cycles).
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CTRL-F12 Speed up emulation (Increase DOSox Cycles).
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NOTE: Once you increase your DOSBox cycles beyond your computer's maximum
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capacity, it will produce the same effect as slowing down the emulation.
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This maximum will vary from computer to computer, there is no standard.
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====================
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System requirements:
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@ -86,6 +86,13 @@ Forces to use SDL cdrom support for drive number.
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.B \-cd
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.RB "Displays all detected cdrom drives and their numbers. Use with " \-usecd "."
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.RE
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.PP
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.B "Example:"
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.TP
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.RB "To mount your /home/dos/dosgames directory as C drive in " dosbox :
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.RS
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mount c /home/dos/dosgames
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.RE
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.TP
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.B MEM
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.LP
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@ -136,9 +143,14 @@ Kill dosbox.
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.IP CTRL\-F10
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Capture/Release the mouse.
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.IP CTRL\-F11
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Slow down emulation.
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Slow down emulation (Increase DOSBox Cycles).
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.IP CTRL\-F12
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Speed up emulation.
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Speed up emulation (Decrease DOSBox Cycles).
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.PP
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.B "Note: "
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Once you increase your DOSBox cycles beyond your computer's maximum
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capacity, it will produce the same effect as slowing down the emulation.
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This maximum will vary from computer to computer, there is no standard.
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.SH "SYSTEM REQUIREMENTS"
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Fast machine. My guess would be pentium\-2 400+ to get decent emulation
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of games written for an 286 machine.
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@ -147,7 +159,7 @@ them to run fast though!! Be sure to read the next section on how to speed
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it up somewhat.
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.SS "To run resource\-demanding games"
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.BR dosbox " emulates the CPU, the sound and graphic cards, and some other"
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.RB " stuff, all at the same time. You can overclock " dosbox " by using CTRL+F12, but"
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.RB " stuff, all at the same time. You can overclock " dosbox " by using CTRL\-F12, but"
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you'll be limited by the power of your actual CPU. You can see how much free
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time your true CPU has by various utils (top). Once 100% of your real CPU time is
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.RB "used there is no further way to speed up " dosbox " unless you reduce the load"
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@ -157,17 +169,17 @@ So:
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.PP
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.RB "Close every program but " dosbox .
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.PP
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.RB "Overclock " dosbox " until 100% of your CPU is used.(CTRL+F12)"
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.RB "Overclock " dosbox " until 100% of your CPU is used.(CTR\-+F12)"
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.PP
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.RB "Since VGA emulation is the most demanding part of " dosbox " in terms of actual"
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CPU usage, we'll start here. Increase the number of frames skipped (in
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increments of one) by pressing CRTL+F8. Your CPU usage should decrease.
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increments of one) by pressing CRTL\-F8. Your CPU usage should decrease.
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Go back one step and repeat this until the game runs fast enough for you.
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Please note that this is a trade off: you lose in fluidity of video what you
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gain in speed.
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.SH NOTES
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.RB "While we hope that, one day, " dosbox " will run virtually all programs ever made for the PC..."
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.RB "we are not there yet. At present, " dosbox " run on a 1 Gigahertz PC is roughly the equivalent of a 16MHz 386 PC."
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.RB "we are not there yet. At present, " dosbox " run on a 1.7 Gigahertz PC is roughly the equivalent of a 25MHz 386 PC."
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While the 0.60 release has added support for "protected mode" allowing for more complex and recent programs,
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but note that this support is early in development and nowhere near as complete as the support for 386 real\-mode
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games (or earlier). Also note that "protected mode" games need substantially more resources and may
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