diff --git a/ports/ports/dosbox.inc b/ports/ports/dosbox.inc
new file mode 100644
index 000000000..904998adc
--- /dev/null
+++ b/ports/ports/dosbox.inc
@@ -0,0 +1,4 @@
+DOSBOX_REV := 3837
+DOSBOX_VERSION := svn-$(DOSBOX_REV)
+DOSBOX := dosbox-$(DOSBOX_VERSION)
+
diff --git a/ports/ports/dosbox.mk b/ports/ports/dosbox.mk
new file mode 100644
index 000000000..98ce5c611
--- /dev/null
+++ b/ports/ports/dosbox.mk
@@ -0,0 +1,19 @@
+include ports/dosbox.inc
+
+DOSBOX_SVN_URL = http://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk
+
+#
+# Interface to top-level prepare Makefile
+#
+PORTS += $(DOSBOX)
+
+prepare:: $(CONTRIB_DIR)/$(DOSBOX)
+
+#
+# Port-specific local rules
+#
+$(CONTRIB_DIR)/$(DOSBOX):
+ $(ECHO) "checking out 'dosbox rev. $(DOSBOX_REV)' to '$@'"
+ $(VERBOSE)svn export $(DOSBOX_SVN_URL)@$(DOSBOX_REV) $@
+ $(VERBOSE)for i in src/app/dosbox/patches/*.patch; do \
+ patch -N -p0 < $$i; done || true
diff --git a/ports/run/dosbox.run b/ports/run/dosbox.run
new file mode 100644
index 000000000..1db8b876b
--- /dev/null
+++ b/ports/run/dosbox.run
@@ -0,0 +1,158 @@
+#
+# Build
+#
+
+
+set build_components {
+ core init
+ drivers/timer
+ drivers/audio_out
+ server/tar_fs
+ drivers/framebuffer drivers/pci drivers/input
+ app/dosbox
+}
+
+lappend_if [have_spec acpi] build_components drivers/acpi
+
+build $build_components
+
+create_boot_directory
+
+#
+# Generate config
+#
+
+append config {
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ }
+
+append_if [have_spec sdl] config {
+
+
+
+
+
+
+ }
+
+append_if [have_spec acpi] config {
+
+
+
+
+
+
+
+ }
+
+append_if [have_spec vesa] config {
+
+
+
+
+
+
+
+
+ }
+
+append_if [have_spec pl11x] config {
+
+
+
+ }
+
+append_if [have_spec ps2] config {
+
+
+
+ }
+
+append config {
+
+ }
+append_if [have_spec acpi] config {
+
+
+
+
+ }
+append config {
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+}
+
+install_config $config
+
+if {![file exists bin/dosbox.tar]} {
+ puts ""
+ puts "You need to provide 'bin/dosbox.tar' that contains the DOS game you want to"
+ puts "play. Mount the directory from within DosBox by entering 'mount C: ',"
+ puts "change CWD to C: and play the game!"
+ puts ""
+ puts "(Note: for all games, which need a R/W filesystem, you cannot use 'tar_fs'.)"
+ puts ""
+ exit 1
+}
+
+#
+# Boot modules
+#
+
+# generic modules
+set boot_modules {
+ core init timer audio_out_drv
+ tar_fs ld.lib.so
+ libc_fs.lib.so libc.lib.so libc_log.lib.so
+ libm.lib.so lwip.lib.so libpng.lib.so
+ stdcxx.lib.so sdl.lib.so sdl_net.lib.so pthread.lib.so zlib.lib.so
+ dosbox dosbox.tar
+}
+
+# platform-specific modules
+lappend_if [have_spec nova] boot_modules pci_device_pd
+lappend_if [have_spec acpi] boot_modules acpi_drv
+lappend_if [have_spec linux] boot_modules fb_sdl
+lappend_if [have_spec pci] boot_modules pci_drv
+lappend_if [have_spec vesa] boot_modules fb_drv
+lappend_if [have_spec ps2] boot_modules ps2_drv
+lappend_if [have_spec pl11x] boot_modules fb_drv
+
+build_boot_image $boot_modules
+
+append qemu_args " -m 256 -soundhw ac97 "
+
+run_genode_until forever
diff --git a/ports/src/app/dosbox/config.h b/ports/src/app/dosbox/config.h
new file mode 100644
index 000000000..f1186bf4f
--- /dev/null
+++ b/ports/src/app/dosbox/config.h
@@ -0,0 +1,294 @@
+/* config.h. Generated from config.h.in by configure. */
+/* config.h.in. Generated from configure.ac by autoheader. */
+
+
+/*
+ * Copyright (C) 2002-2013 The DOSBox Team
+ *
+ * This program is free software; 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 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+
+/* Define if building universal (internal helper macro) */
+/* #undef AC_APPLE_UNIVERSAL_BUILD */
+
+/* Compiling on BSD */
+/* Genode's libc is based on FreeBSD 8.2 */
+#define BSD 1
+
+/* Determines if the compilers supports always_inline attribute. */
+/* #undef C_ATTRIBUTE_ALWAYS_INLINE */
+
+/* Determines if the compilers supports fastcall attribute. */
+/* #undef C_ATTRIBUTE_FASTCALL */
+
+/* Define to 1 to use inlined memory functions in cpu core */
+/* #undef C_CORE_INLINE */
+
+/* Define to 1 to enable internal debugger, requires libcurses */
+/* #undef C_DEBUG */
+
+/* Define to 1 if you want serial passthrough support (Win32, Posix and OS/2).
+ */
+/* #undef C_DIRECTSERIAL */
+
+/* Define to 1 to use x86 dynamic cpu core */
+/* #undef C_DYNAMIC_X86 */
+
+/* Define to 1 to use recompiling cpu core. Can not be used together with the
+ dynamic-x86 core */
+#define C_DYNREC 1
+
+/* Define to 1 to enable floating point emulation */
+#define C_FPU 1
+
+/* Define to 1 to use a x86 assembly fpu core */
+/* #undef C_FPU_X86 */
+
+/* Determines if the compilers supports attributes for structures. */
+#define C_HAS_ATTRIBUTE 1
+
+/* Determines if the compilers supports __builtin_expect for branch
+ prediction. */
+#define C_HAS_BUILTIN_EXPECT 1
+
+/* Define to 1 if you have the mprotect function */
+#define C_HAVE_MPROTECT 1
+
+/* Define to 1 to enable heavy debugging, also have to enable C_DEBUG */
+/* #undef C_HEAVY_DEBUG */
+
+/* Define to 1 to enable IPX over Internet networking, requires SDL_net */
+#define C_IPX 1
+
+/* Define to 1 to enable internal modem support, requires SDL_net */
+#define C_MODEM 1
+
+/* Define to 1 to use opengl display output support */
+/* #undef C_OPENGL */
+
+/* Define to 1 to enable SDL_sound support */
+/* #undef C_SDL_SOUND */
+
+/* Define to 1 if you have setpriority support */
+#define C_SET_PRIORITY 1
+
+/* Define to 1 to enable screenshots, requires libpng */
+#define C_SSHOT 1
+
+/* The type of cpu this target has */
+/* we define it ourself */
+/* #undef C_TARGETCPU */
+
+/* Define to 1 to use a unaligned memory access */
+#define C_UNALIGNED_MEMORY 1
+
+/* define to 1 if you have XKBlib.h and X11 lib */
+/* #undef C_X11_XKB */
+
+/* libm doesn't include powf */
+/* #undef DB_HAVE_NO_POWF */
+
+/* struct dirent has d_type */
+#define DIRENT_HAS_D_TYPE 1
+
+/* environ can be included */
+/* #undef ENVIRON_INCLUDED */
+
+/* environ can be linked */
+/* #undef ENVIRON_LINKED */
+
+/* Define to 1 to use ALSA for MIDI */
+/* #undef HAVE_ALSA */
+
+/* Define to 1 if you have the header file. */
+/* #undef HAVE_DDRAW_H */
+
+/* Define to 1 if you have the header file. */
+#define HAVE_INTTYPES_H 1
+
+/* Define to 1 if you have the `asound' library (-lasound). */
+/* #undef HAVE_LIBASOUND */
+
+/* Define to 1 if you have the header file. */
+#define HAVE_MEMORY_H 1
+
+/* Define to 1 if you have the header file. */
+#define HAVE_NETINET_IN_H 1
+
+/* Define to 1 if you have the header file. */
+#define HAVE_PWD_H 1
+
+/* Define to 1 if you have the header file. */
+#define HAVE_STDINT_H 1
+
+/* Define to 1 if you have the header file. */
+#define HAVE_STDLIB_H 1
+
+/* Define to 1 if you have the header file. */
+#define HAVE_STRINGS_H 1
+
+/* Define to 1 if you have the header file. */
+#define HAVE_STRING_H 1
+
+/* Define to 1 if you have the header file. */
+#define HAVE_SYS_SOCKET_H 1
+
+/* Define to 1 if you have the header file. */
+#define HAVE_SYS_STAT_H 1
+
+/* Define to 1 if you have the header file. */
+#define HAVE_SYS_TYPES_H 1
+
+/* Define to 1 if you have the header file. */
+#define HAVE_UNISTD_H 1
+
+/* Compiling on GNU/Linux */
+/* #undef LINUX */
+
+/* Compiling on Mac OS X */
+/* #undef MACOSX */
+
+/* Compiling on OS/2 EMX */
+/* #undef OS2 */
+
+/* Name of package */
+#define PACKAGE "dosbox"
+
+/* Define to the address where bug reports for this package should be sent. */
+#define PACKAGE_BUGREPORT ""
+
+/* Define to the full name of this package. */
+#define PACKAGE_NAME "dosbox"
+
+/* Define to the full name and version of this package. */
+#define PACKAGE_STRING "dosbox SVN"
+
+/* Define to the one symbol short name of this package. */
+#define PACKAGE_TARNAME "dosbox"
+
+/* Define to the home page for this package. */
+#define PACKAGE_URL ""
+
+/* Define to the version of this package. */
+#define PACKAGE_VERSION "SVN"
+
+#include
+
+/* Define to 1 if your declares `struct tm'. */
+/* #undef TM_IN_SYS_TIME */
+
+/* Version number of package */
+#define VERSION "SVN"
+
+/* Define WORDS_BIGENDIAN to 1 if your processor stores words with the most
+ significant byte first (like Motorola and SPARC, unlike Intel). */
+#if defined AC_APPLE_UNIVERSAL_BUILD
+# if defined __BIG_ENDIAN__
+# define WORDS_BIGENDIAN 1
+# endif
+#else
+# ifndef WORDS_BIGENDIAN
+/* # undef WORDS_BIGENDIAN */
+# endif
+#endif
+
+/* Define to empty if `const' does not conform to ANSI C. */
+/* #undef const */
+
+/* Define to `__inline__' or `__inline' if that's what the C compiler
+ calls it, or to nothing if 'inline' is not supported under any name. */
+#ifndef __cplusplus
+/* #undef inline */
+#endif
+
+/* Define to `unsigned int' if does not define. */
+/* #undef size_t */
+
+/* Define to `int` if you don't have socklen_t */
+/* #undef socklen_t */
+
+#if C_ATTRIBUTE_ALWAYS_INLINE
+#define INLINE inline __attribute__((always_inline))
+#else
+#define INLINE inline
+#endif
+
+#if C_ATTRIBUTE_FASTCALL
+#define DB_FASTCALL __attribute__((fastcall))
+#else
+#define DB_FASTCALL
+#endif
+
+#if C_HAS_ATTRIBUTE
+#define GCC_ATTRIBUTE(x) __attribute__ ((x))
+#else
+#define GCC_ATTRIBUTE(x) /* attribute not supported */
+#endif
+
+#if C_HAS_BUILTIN_EXPECT
+#define GCC_UNLIKELY(x) __builtin_expect((x),0)
+#define GCC_LIKELY(x) __builtin_expect((x),1)
+#else
+#define GCC_UNLIKELY(x) (x)
+#define GCC_LIKELY(x) (x)
+#endif
+
+
+typedef double Real64;
+
+#if SIZEOF_UNSIGNED_CHAR != 1
+# error "sizeof (unsigned char) != 1"
+#else
+ typedef unsigned char Bit8u;
+ typedef signed char Bit8s;
+#endif
+
+#if SIZEOF_UNSIGNED_SHORT != 2
+# error "sizeof (unsigned short) != 2"
+#else
+ typedef unsigned short Bit16u;
+ typedef signed short Bit16s;
+#endif
+
+#if SIZEOF_UNSIGNED_INT == 4
+ typedef unsigned int Bit32u;
+ typedef signed int Bit32s;
+#elif SIZEOF_UNSIGNED_LONG == 4
+ typedef unsigned long Bit32u;
+ typedef signed long Bit32s;
+#else
+# error "can't find sizeof(type) of 4 bytes!"
+#endif
+
+#if SIZEOF_UNSIGNED_LONG == 8
+ typedef unsigned long Bit64u;
+ typedef signed long Bit64s;
+#elif SIZEOF_UNSIGNED_LONG_LONG == 8
+ typedef unsigned long long Bit64u;
+ typedef signed long long Bit64s;
+#else
+# error "can't find data type of 8 bytes"
+#endif
+
+#if SIZEOF_INT_P == 4
+ typedef Bit32u Bitu;
+ typedef Bit32s Bits;
+#else
+ typedef Bit64u Bitu;
+ typedef Bit64s Bits;
+#endif
+
+
diff --git a/ports/src/app/dosbox/patches/bios.patch b/ports/src/app/dosbox/patches/bios.patch
new file mode 100644
index 000000000..5dba156b5
--- /dev/null
+++ b/ports/src/app/dosbox/patches/bios.patch
@@ -0,0 +1,35 @@
+--- contrib/dosbox-svn-3837/src/ints/bios.cpp.orig 2013-10-21 21:45:59.350897646 +0200
++++ contrib/dosbox-svn-3837/src/ints/bios.cpp 2013-10-21 22:02:03.526912653 +0200
+@@ -32,7 +32,7 @@
+ #include "setup.h"
+ #include "serialport.h"
+ #include
+-#include
++//#include
+
+
+ /* if mem_systems 0 then size_extended is reported as the real size else
+@@ -490,11 +490,11 @@
+
+ static void BIOS_HostTimeSync() {
+ /* Setup time and date */
+- struct timeb timebuffer;
+- ftime(&timebuffer);
++ struct timeval tv;
++ gettimeofday(&tv, NULL);
+
+ struct tm *loctime;
+- loctime = localtime (&timebuffer.time);
++ loctime = localtime (&tv.tv_sec);
+
+ /*
+ loctime->tm_hour = 23;
+@@ -513,7 +513,7 @@
+ loctime->tm_hour*3600*1000+
+ loctime->tm_min*60*1000+
+ loctime->tm_sec*1000+
+- timebuffer.millitm))*(((double)PIT_TICK_RATE/65536.0)/1000.0));
++ (tv.tv_usec * 1000)))*(((double)PIT_TICK_RATE/65536.0)/1000.0));
+ mem_writed(BIOS_TIMER,ticks);
+ }
+
diff --git a/ports/src/app/dosbox/patches/int10_vesa.patch b/ports/src/app/dosbox/patches/int10_vesa.patch
new file mode 100644
index 000000000..872195fd8
--- /dev/null
+++ b/ports/src/app/dosbox/patches/int10_vesa.patch
@@ -0,0 +1,11 @@
+--- contrib/dosbox-svn-3837/src/ints/int10_vesa.cpp.orig 2013-10-21 16:57:31.889803364 +0200
++++ contrib/dosbox-svn-3837/src/ints/int10_vesa.cpp 2013-10-21 16:57:36.777803442 +0200
+@@ -45,7 +45,7 @@
+ static char string_oem[]="S3 Incorporated. Trio64";
+ static char string_vendorname[]="DOSBox Development Team";
+ static char string_productname[]="DOSBox - The DOS Emulator";
+-static char string_productrev[]="DOSBox "VERSION;
++static char string_productrev[]="DOSBox " VERSION;
+
+ #ifdef _MSC_VER
+ #pragma pack (1)
diff --git a/ports/src/app/dosbox/patches/sdl_mapper.cpp.patch b/ports/src/app/dosbox/patches/sdl_mapper.cpp.patch
new file mode 100644
index 000000000..e94d44ca3
--- /dev/null
+++ b/ports/src/app/dosbox/patches/sdl_mapper.cpp.patch
@@ -0,0 +1,20 @@
+--- contrib/dosbox-svn-3837/src/gui/sdl_mapper.cpp.orig 2013-10-30 13:57:07.000000000 +0100
++++ contrib/dosbox-svn-3837/src/gui/sdl_mapper.cpp 2013-10-30 15:35:50.563742200 +0100
+@@ -416,7 +416,7 @@
+ }
+ #if !defined (WIN32) && !defined (MACOSX) && !defined(OS2)
+ /* Linux adds 8 to all scancodes */
+- else key-=8;
++ //else key-=8;
+ #endif
+ #if defined (WIN32)
+ switch (key) {
+@@ -2449,6 +2449,8 @@
+ }
+ }
+ #endif
++ /* Genode's input keycodes match these of evdev */
++ evdev_input = true;
+ if (evdev_input) {
+ sdlkey_map[0x67]=SDLK_UP;
+ sdlkey_map[0x6c]=SDLK_DOWN;
diff --git a/ports/src/app/dosbox/target.mk b/ports/src/app/dosbox/target.mk
new file mode 100644
index 000000000..7fd7abbd0
--- /dev/null
+++ b/ports/src/app/dosbox/target.mk
@@ -0,0 +1,58 @@
+TARGET = dosbox
+
+include $(REP_DIR)/ports/dosbox.inc
+DOSBOX_DIR = $(REP_DIR)/contrib/$(DOSBOX)
+
+SRC_CC_cpu = $(notdir $(wildcard $(DOSBOX_DIR)/src/cpu/*.cpp))
+SRC_CC_debug = $(notdir $(wildcard $(DOSBOX_DIR)/src/debug/*.cpp))
+FILTER_OUT_dos = cdrom_aspi_win32.cpp cdrom_ioctl_linux.cpp cdrom_ioctl_os2.cpp \
+ cdrom_ioctl_win32.cpp
+SRC_CC_dos = $(filter-out $(FILTER_OUT_dos),$(notdir $(wildcard $(DOSBOX_DIR)/src/dos/*.cpp)))
+SRC_CC_fpu = $(notdir $(DOSBOX_DIR)/src/fpu/fpu.cpp)
+SRC_CC_gui = $(notdir $(wildcard $(DOSBOX_DIR)/src/gui/*.cpp))
+FILTER_OUT_hw = opl.cpp
+SRC_CC_hw = $(filter-out $(FILTER_OUT_hw),$(notdir $(wildcard $(DOSBOX_DIR)/src/hardware/*.cpp)))
+SRC_CC_hw_ser = $(notdir $(wildcard $(DOSBOX_DIR)/src/hardware/serialport/*.cpp))
+SRC_CC_ints = $(notdir $(wildcard $(DOSBOX_DIR)/src/ints/*.cpp))
+SRC_CC_misc = $(notdir $(wildcard $(DOSBOX_DIR)/src/misc/*.cpp))
+SRC_CC_shell = $(notdir $(wildcard $(DOSBOX_DIR)/src/shell/*.cpp))
+
+SRC_CC = $(notdir $(DOSBOX_DIR)/src/dosbox.cpp)
+SRC_CC += $(SRC_CC_cpu) $(SRC_CC_debug) $(SRC_CC_dos) $(SRC_CC_fpu) $(SRC_CC_gui) \
+ $(SRC_CC_hw) $(SRC_CC_hw_ser) $(SRC_CC_ints) $(SRC_CC_ints) $(SRC_CC_misc) \
+ $(SRC_CC_shell)
+
+vpath %.cpp $(DOSBOX_DIR)/src
+vpath %.cpp $(DOSBOX_DIR)/src/cpu
+vpath %.cpp $(DOSBOX_DIR)/src/debug
+vpath %.cpp $(DOSBOX_DIR)/src/dos
+vpath %.cpp $(DOSBOX_DIR)/src/fpu
+vpath %.cpp $(DOSBOX_DIR)/src/gui
+vpath %.cpp $(DOSBOX_DIR)/src/hardware
+vpath %.cpp $(DOSBOX_DIR)/src/hardware/serialport
+vpath %.cpp $(DOSBOX_DIR)/src/ints
+vpath %.cpp $(DOSBOX_DIR)/src/misc
+vpath %.cpp $(DOSBOX_DIR)/src/shell
+
+INC_DIR += $(PRG_DIR)
+INC_DIR += $(DOSBOX_DIR)/include
+INC_DIR += $(addprefix $(DOSBOX_DIR)/src, cpu debug dos fpu gui hardware hardware/serialport \
+ ints misc shell)
+
+CC_OPT = -DHAVE_CONFIG_H -D_GNU_SOURCE=1 -D_REENTRANT
+ifeq ($(filter-out $(SPECS),x86_32),)
+INC_DIR += $(PRG_DIR)/x86_32
+CC_OPT += -DC_TARGETCPU=X86
+else ifeq ($(filter-out $(SPECS),x86_64),)
+INC_DIR += $(PRG_DIR)/x86_64
+CC_OPT += -DC_TARGETCPU=X86_64
+endif
+
+CC_WARN = -Wall
+CC_WARN += -Wno-unused-variable -Wno-unused-function -Wno-switch -Wno-unused-value \
+ -Wno-unused-but-set-variable -Wno-format -Wno-maybe-uninitialized \
+ -Wno-sign-compare -Wno-narrowing -Wno-missing-braces -Wno-array-bounds \
+ -Wno-parentheses
+
+LIBS += libc libm libpng sdl sdl_net stdcxx zlib
+LIBS += libc_log libc_fs libc_lwip_nic_dhcp config_args
diff --git a/ports/src/app/dosbox/x86_32/size_defs.h b/ports/src/app/dosbox/x86_32/size_defs.h
new file mode 100644
index 000000000..931fcf3fb
--- /dev/null
+++ b/ports/src/app/dosbox/x86_32/size_defs.h
@@ -0,0 +1,17 @@
+/* The size of `int *', as computed by sizeof. */
+#define SIZEOF_INT_P 4
+
+/* The size of `unsigned char', as computed by sizeof. */
+#define SIZEOF_UNSIGNED_CHAR 1
+
+/* The size of `unsigned int', as computed by sizeof. */
+#define SIZEOF_UNSIGNED_INT 4
+
+/* The size of `unsigned long', as computed by sizeof. */
+#define SIZEOF_UNSIGNED_LONG 4
+
+/* The size of `unsigned long long', as computed by sizeof. */
+#define SIZEOF_UNSIGNED_LONG_LONG 8
+
+/* The size of `unsigned short', as computed by sizeof. */
+#define SIZEOF_UNSIGNED_SHORT 2
diff --git a/ports/src/app/dosbox/x86_64/size_defs.h b/ports/src/app/dosbox/x86_64/size_defs.h
new file mode 100644
index 000000000..500278c9a
--- /dev/null
+++ b/ports/src/app/dosbox/x86_64/size_defs.h
@@ -0,0 +1,17 @@
+/* The size of `int *', as computed by sizeof. */
+#define SIZEOF_INT_P 8
+
+/* The size of `unsigned char', as computed by sizeof. */
+#define SIZEOF_UNSIGNED_CHAR 1
+
+/* The size of `unsigned int', as computed by sizeof. */
+#define SIZEOF_UNSIGNED_INT 4
+
+/* The size of `unsigned long', as computed by sizeof. */
+#define SIZEOF_UNSIGNED_LONG 8
+
+/* The size of `unsigned long long', as computed by sizeof. */
+#define SIZEOF_UNSIGNED_LONG_LONG 8
+
+/* The size of `unsigned short', as computed by sizeof. */
+#define SIZEOF_UNSIGNED_SHORT 2