$ dosemu -dumb
shared memfd open() failed: Function not implemented
shared memfd open() failed: Function not implemented
ALSA lib pcm_hw.c:1713:(_snd_pcm_hw_open) Invalid value for card
couldn't open play stream: No such file or directory
ERROR: alsa_midi (ALSA lib): seq_hw.c:466:(snd_seq_hw_open) : No such file or directory open /dev/snd/seq failed
dosemu2 2.0pre8-20190126-884-gaaad6f8b
Configured: 2019-01-26 16:03:11 +0100
Please test against a recent version before reporting bugs and problems.
Get the latest code at http://stsp.github.io/dosemu2
Submit Bugs via https://github.com/stsp/dosemu2/issues
Ask for help in mail list: linux-msdos@vger.kernel.org

FreeDOS kernel build 2036 cvs [version Aug 18 2006 compiled Aug 18 2006]
Kernel compatibility 7.10 - WATCOMC - 80386 CPU required - FAT32 support

(C) Copyright 1995-2006 Pasquale J. Villani and The FreeDOS Project.
All Rights Reserved. This is free software and comes with ABSOLUTELY NO
WARRANTY; you can redistribute it and/or modify it under the terms of the
GNU General Public License as published by the Free Software Foundation;
either version 2, or (at your option) any later version.
C: HD1, Pri[ 1], CHS=    0-1-1, start=     0 MB, size=  2000 MB
D: HD2, Pri[ 1], CHS=    0-1-1, start=     0 MB, size=  2000 MB
E: HD3, Pri[ 1], CHS=    0-1-1, start=     0 MB, size=  2000 MB
F: HD4, Pri[ 1], CHS=    0-1-1, start=     0 MB, size=  2000 MB
dosemu XMS 3.0 & UMB support enabled
dosemu EMS driver rev 0.8 installed.
EMUFS host file and print access available
Kernel: allocated 41 Diskbuffers = 21812 Bytes in HMA
BLASTER=A220 I5 D1 H5 P330 T6
MIDI=SYNTH:2 MAP:E MODE:0
Welcome to dosemu2!
    Build 2.0pre8-20190126-884-gaaad6f8b
C:\>ver /r

FreeCom version 0.84-pre2 XMS_Swap [Aug 28 2006 00:29:00]
DOS version 7.10
FreeDOS kernel build 2036 cvs [version Aug 18 2006 compiled Aug 18 2006]
C:\>lddebugc.com
Determining processor type
Found 186+ processor
Found 286+ processor
Found 386+ processor
Found 486+ processor
Found processor with CPUID support
Executing CPUID 0
CPUID 0 executed
Executing CPUID 1
CPUID 1 executed
Determining floating-point unit


~-?build
Debugged lDebug (2019-06-09)
Source Control Revision ID: hg 12e6cf2820c6
~-a
14C9:0100 mov cx, 10
14C9:0103 mov si, 0
14C9:0106 rep lodsb
14C9:0108 nop
14C9:0109 int3
14C9:010A
~-r
AX=0000 BX=0000 CX=0000 DX=0000 SP=FFFE BP=0000 SI=0000 DI=0000
DS=14C9 ES=14C9 SS=14C9 CS=14C9 IP=0100 NV UP EI PL ZR NA PE NC
14C9:0100 B91000            mov     cx, 0010
~-t
AX=0000 BX=0000 CX=0010 DX=0000 SP=FFFE BP=0000 SI=0000 DI=0000
DS=14C9 ES=14C9 SS=14C9 CS=14C9 IP=0103 NV UP EI PL ZR NA PE NC
14C9:0103 BE0000            mov     si, 0000
~-
AX=0000 BX=0000 CX=0010 DX=0000 SP=FFFE BP=0000 SI=0000 DI=0000
DS=14C9 ES=14C9 SS=14C9 CS=14C9 IP=0106 NV UP EI PL ZR NA PE NC
14C9:0106 F3AC              rep     lodsb
~-
AX=00CD BX=0000 CX=000F DX=0000 SP=FFFE BP=0000 SI=0001 DI=0000
DS=14C9 ES=14C9 SS=14C9 CS=14C9 IP=0106 NV UP EI PL ZR NA PE NC
14C9:0106 F3AC              rep     lodsb
~-tp
ERROR: CPU-EMU: Zero-len code node?
                                   AX=0093 BX=0000 CX=0000 DX=0000 SP=FFFE BP=0000 SI=0011 DI=0000
DS=14C9 ES=14C9 SS=14C9 CS=14C9 IP=0108 NV UP EI PL ZR NA PE NC
14C9:0108 90                nop
~-q
C:\>exitemu
$