Package: dosemu
Version: 0.98.1-3
DOSEmu enables access to the display in the way you mention (writing directly
to 0B800H area). I do not know what is the minimal configuration that would
allow it.
As for the rest of the hardware, I believe that some, if not all, requires
special configuration of DOSEmu.
> Hello,
>
> Could you help me please with the following information:
> does it exist the DOS emulator allows full access to the
> system: direct low addresses access, I/O ports and
> interrupts. For example, direct writing to display memory
> (b800:0000) is required.
>
-- System Information
Debian Release: 2.1
Kernel Version: Linux rakefet 2.0.36 #2 Sun Feb 21 15:55:27 EST 1999 i586
unknown
Versions of the packages dosemu depends on:
ii debianutils 1.10 Miscellaneous utilities specific to Debian.
ii libc6 2.0.7.19981211 GNU C Library: shared libraries
ii libc6 2.0.7.19981211 GNU C Library: shared libraries
ii slang1 1.2.2-2 The S-Lang programming library - runtime ver
ii slang1 1.2.2-2 The S-Lang programming library - runtime ver
ii xlib6g 3.3.2.3a-11 shared libraries required by X clients
--- Begin /etc/dosemu/conf (modified conffile)
#
#
#
#
#
#
#
#
$_debug = "-a" # same format as -D commandline option
# (but without the -D in front)
$_timint = (on) # emulate INT08 type timer interrupts
$_mathco = (on) # or off
$_cpu = (80386) # CPU emulation, valid values: 80[345]86
$_rdtsc = (on) # if possible use Pentium cycle counter
$_cpuspeed = (0) # 0 = calibrated by dosemu, else given (e.g.166.666)
$_pci = (off)
$_xms = (1024) # in Kbyte
$_ems = (1024) # in Kbyte
$_ems_frame = (0xe000)
$_dpmi = (off) # in Kbyte
$_dosmem = (640) # in Kbyte, < 640
$_hardware_ram = "" # list of segment values/ranges such as
# "0xc8000 range 0xcc000,0xcffff"
$_secure ="ngd" # secure for: n (normal users), g (guest), d (dexe)
# empty string: depending on 'restricted'
# "0": always insecure (not recommended)
$_odd_hosts = "" # black list such as "lucifer.hell.com billy.the.cat"
$_diskless_hosts="" # black list such as "hacker1 newbee gateway1"
$_emusys = "" # empty or 3 char., config.sys -> config.XXX
$_emubat = "" # empty or 3 char., autoexec.bat -> autoexec.XXX
$_emuini = "" # empty or 3 char., system.ini -> system.XXX
$_hogthreshold = (1) # 0 == all CPU power to DOSEMU
$_irqpassing = "" # list of IRQ number (2-15) to pass to DOS such as
# "3 8 10"
$_speaker = "" # or "native" or "emulated"
$_term_char_set = "" # Global code page and character set selection.
# "" == automatic, else: ibm, latin, latin1, latin2
$_term_color = (on) # terminal with color support
$_term_updfreq = (4) # time between refreshs (units: 20 == 1 second)
$_escchar = (30) # 30 == Ctrl-^, special-sequence prefix
$_rawkeyboard = (0) # bypass normal keyboard input, maybe dangerous
$_layout = "us" # one of: finnish(-latin1), de(-latin1), be, it, us
# uk, dk(-latin1), keyb-no, no-latin1, dvorak, po
# sg(-latin1), fr(-latin1), sf(-latin1), es(-latin1)
# sw, hu(-latin2), hu-cwi, keyb-user
$_keybint = (on) # emulate PCish keyboard interrupt
$_X_updfreq = (5) # time between refreshs (units: 20 == 1 second)
$_X_title = "DOS in a BOX" # Title in the top bar of the window
$_X_icon_name = "xdos" # Text for icon, when minimized
$_X_keycode = (off) # on == translate keybord via dosemu keytables
$_X_blinkrate = (8) # blink rate for the cursor
$_X_font = "" # basename from /usr/X11R6/lib/X11/fonts/misc/*
# (without extension) e.g. "vga"
$_X_mitshm = (on) # Use shared memory extensions
$_X_sharecmap = (off) # share the colormap with other applications
$_X_fixed_aspect = (on) # Set fixed aspect for resize the graphics window
$_X_aspect_43 = (on) # Always use an aspect ratio of 4:3 for graphics
$_X_lin_filt = (off) # Use linear filtering for >15 bpp interpolation
$_X_bilin_filt = (off) # Use bi-linear filtering for >15 bpp interpolation
$_X_mode13fact = (2) # initial size factor for video mode 0x13 (320x200)
$_X_winsize = "" # "x,y" of initial windows size (defaults to float)
$_X_gamma = (1.0) # gamma correction
$_X_vgaemu_memsize = (1024) # size (in Kbytes) of the frame buffer for
emulated vga
$_X_lfb = (on) # use linear frame buffer in VESA modes
$_X_pm_interface = (on) # use protected mode interface for VESA modes
$_X_mgrab_key = "" # KeySym name to activate mouse grab, empty == off
$_X_vesamode = "" # "xres,yres ... xres,yres"
# List of vesamodes to add. The list has to contain
# SPACE separated "xres,yres" pairs
$_video = "vga" # one of: plainvga, vga, ega, mda, mga, cga
$_console = (0) # use 'console' video
$_graphics = (0) # use the cards BIOS to set graphics
$_videoportaccess = (0) # allow videoportaccess when 'graphics' enabled
$_vbios_seg = (0xc000) # set the address of your VBIOS (e.g. 0xe000)
$_vbios_size = (0x10000)# set the size of your BIOS (e.g. 0x8000)
$_vmemsize = (1024) # size of regen buffer
$_chipset = "cirrus" # one of: plainvga, trident, et4000, diamond, avance
# cirrus, matrox, wdvga, paradise
$_dualmon = (0) # if you have one vga _plus_ one hgc (2 monitors)
$_vbootfloppy = "" # if you want to boot from a virtual floppy:
# file name of the floppy image under /var/lib/dosemu
# e.g. "floppyimage" disables $_hdimage
# "floppyimage +hd" does _not_ disable $_hdimage
$_floppy_a ="threeinch" # or "fiveinch" or empty, if not existing
$_floppy_b = "" # dito for B:
$_hdimage = "hdimage.first" # list of hdimages under /var/lib/dosemu
# assigned in this order such as
# "hdimage_c hdimage_d hdimage_e"
# If the name begins with '/dev/', then partion
# access is done instead of virtual hdimage such as
# "/dev/hda1" or "/dev/hda1:ro" for readonly
# Currently mounted devices and swap are refused.
# Hdimages and devices may be mixed such as
# "hdimage_c /dev/hda1 /dev/hda3:ro"
# Note: 'wholedisk' is _not_ supported.
$_hdimage_r = $_hdimage # hdimages for 'restricted access (if different)
$_com1 = "" # e.g. "/dev/mouse" or "/dev/cua0"
$_com2 = "" # e.g. "/dev/modem" or "/dev/cua1"
$_com3 = "" # dito "/dev/cua2"
$_com4 = "" # dito "/dev/cua3"
$_ttylocks = "/var/lock" # Lock directory (e.g. "/var/lock")
# default ("") is /usr/spool/uucp
$_mouse = "" # one of: microsoft, mousesystems, logitech, mmseries
# mouseman, hitachi, busmouse, ps2
$_mouse_dev = "" # one of: com1, com2, com3, com4 or /dev/mouse
$_mouse_flags = "" # list of none or one or more of:
# "emulate3buttons cleardtr"
$_mouse_baud = (0) # baudrate, 0 == don't set
$_printer = "lp" # list of (/etc/printcap) printer names to appear as
# LPT1, LPT2, LPT3 (not all are needed, empty for none)
$_printer_timeout = (20)# idle time in seconds before spooling out
$_ports = "" # list of portnumbers such as "0x1ce 0x1cf 0x238"
# or "0x1ce range 0x280,0x29f 310"
# or "range 0x1a0,(0x1a0+15)"
$_ipxsupport = (off) # or on
$_novell_hack = (off)
$_vnet = (off) # 'on' for packet-multi (used by dosnet)
$_sound = (off) # sound support on/off
$_sb_base = (0x220)
$_sb_irq = (5)
$_sb_dma = (1)
$_sb_dsp = "/dev/dsp"
$_sb_mixer = "/dev/mixer"
$_mpu_base = "0x330"
--- End /etc/dosemu/conf
--- Begin /etc/dosemu/users (modified conffile)
#
#
#
#
#
#
default_lib_dir= /usr/lib/dosemu
log_level= 1
root c_all # root is allowed to do all weird things
nobody nosuidroot guest # variable 'guest' is checked in /etc/dosemu.conf
# to allow only DEXE execution
guest nosuidroot guest # login guest treated as 'nobody'
shaul c_all
all nosuidroot restricted # all other users have normal user restrictions
--- End /etc/dosemu/users
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