diff --git a/ports/atari800.hash b/ports/atari800.hash
new file mode 100644
index 0000000..4bbe3c5
--- /dev/null
+++ b/ports/atari800.hash
@@ -0,0 +1 @@
+009099e0ce8152266d7f84384a670218f1a9bf7b
diff --git a/ports/atari800.port b/ports/atari800.port
new file mode 100644
index 0000000..13cfc02
--- /dev/null
+++ b/ports/atari800.port
@@ -0,0 +1,11 @@
+LICENSE   := GPLv2
+VERSION   := 3.1.0
+DOWNLOADS := atari800.git xformer.archive
+
+URL(atari800) := https://github.com/atari800/atari800.git
+REV(atari800) := ATARI800_3_1_0
+DIR(atari800) := src/app/atari800
+
+URL(xformer) := http://prdownloads.sf.net/atari800/xf25.zip
+SHA(xformer) := e65923fd3a4845c1c72d1677db0fda969187eb42
+DIR(xformer) := src/app/atari800/xformer
diff --git a/run/atari800.run b/run/atari800.run
new file mode 100644
index 0000000..28c08c2
--- /dev/null
+++ b/run/atari800.run
@@ -0,0 +1,36 @@
+set build_components { app/atari800 }
+
+set app_config {
+
+<start name="atari800" priority="-2" caps="200">
+	<resource name="RAM" quantum="64M"/>
+	<config>
+		<libc stdout="/dev/log" stderr="/dev/log" rtc="/dev/rtc"/>
+		<vfs>
+			<tar name="atari800_rom.tar" />
+			<dir name="dev"> <log/> <inline name="rtc">2000-01-01 00:00</inline> </dir>
+			<ram/>
+		</vfs>
+		<arg value="atari800"/>
+		<arg value="-osb_rom"/>   <arg value="ATARIOSB.ROM"/>
+		<arg value="-xlxe_rom"/>  <arg value="ATARIXL.ROM"/>
+		<arg value="-basic_rom"/> <arg value="ATARIBAS.ROM"/>
+		<arg value="-basic"/>
+		<arg value="-showspeed"/>
+		<arg value="-nosound"/>
+		<arg value="-win-width"/>  <arg value="640"/>
+		<arg value="-win-height"/> <arg value="480"/>
+	</config>
+</start>}
+
+set boot_modules {
+	atari800 atari800_rom.tar
+	libc.lib.so
+	libm.lib.so
+	libpng.lib.so
+	pthread.lib.so
+	sdl.lib.so
+	zlib.lib.so
+}
+
+source ${genode_dir}/repos/world/run/framebuffer_app.inc
diff --git a/src/app/atari800/config.h b/src/app/atari800/config.h
new file mode 100644
index 0000000..40e6e33
--- /dev/null
+++ b/src/app/atari800/config.h
@@ -0,0 +1,99 @@
+#define AF80 1
+#define CONSOLE_SOUND 1
+#define CRASH_MENU 1
+#define EVENT_RECORDING 1
+#define GUI_SDL 1
+#define HAVE_ARPA_INET_H 1
+#define HAVE_ATEXIT 1
+#define HAVE_CHMOD 1
+#define HAVE_CLOCK 1
+#define HAVE_DIRENT_H 1
+#define HAVE_ERRNO_H 1
+#define HAVE_FCNTL_H 1
+#define HAVE_FDOPEN 1
+#define HAVE_FFLUSH 1
+#define HAVE_FLOOR 1
+#define HAVE_FSEEKO 1
+#define HAVE_FSTAT 1
+#define HAVE_GETCWD 1
+#define HAVE_GETTIMEOFDAY 1
+#define HAVE_INTTYPES_H 1
+#define HAVE_LIBPNG 1
+#define HAVE_LIBZ 1
+#define HAVE_MKDIR 1
+#define HAVE_MKSTEMP 1
+#define HAVE_MKTEMP 1
+#define HAVE_MODF 1
+#define HAVE_NANOSLEEP 1
+#define HAVE_OPENDIR 1
+#define HAVE_RENAME 1
+#define HAVE_RMDIR 1
+#define HAVE_SELECT 1
+#define HAVE_SIGNAL 1
+#define HAVE_SIGNAL_H 1
+#define HAVE_STAT 1
+#define HAVE_STDINT_H 1
+#define HAVE_STDLIB_H 1
+#define HAVE_STRCASECMP 1
+#define HAVE_STRCHR 1
+#define HAVE_STRDUP 1
+#define HAVE_STRERROR 1
+#define HAVE_STRINGS_H 1
+#define HAVE_STRING_H 1
+#define HAVE_STRNCPY 1
+#define HAVE_STRRCHR 1
+#define HAVE_STRSTR 1
+#define HAVE_STRTOL 1
+#define HAVE_SYSTEM 1
+#define HAVE_SYS_IOCTL_H 1
+#define HAVE_SYS_SELECT_H 1
+#define HAVE_SYS_STAT_H 1
+#define HAVE_SYS_TIME_H 1
+#define HAVE_SYS_TYPES_H 1
+#define HAVE_TERMIOS_H 1
+#define HAVE_TIME 1
+#define HAVE_TIME_H 1
+#define HAVE_TMPFILE 1
+#define HAVE_TMPNAM 1
+#define HAVE_UNISTD_H 1
+#define HAVE_UNLINK 1
+#define HAVE_USLEEP 1
+#define HAVE_VPRINTF 1
+#define IDE 1
+#define INTERPOLATE_SOUND 1
+#define LSTAT_FOLLOWS_SLASHED_SYMLINK 1
+#define MONITOR_ASSEMBLER 1
+#define MONITOR_BREAK 1
+#define MONITOR_HINTS 1
+#define NEW_CYCLE_EXACT 1
+#define NONLINEAR_MIXING 1
+#define NTSC_FILTER 1
+#define PACKAGE_NAME "Atari800"
+#define PACKAGE_STRING "Atari800 3.1.0"
+#define PACKAGE_TARNAME "atari800"
+#define PACKAGE_URL ""
+#define PACKAGE_VERSION "3.1.0"
+#define PAL_BLENDING 1
+#define PBI_BB 1
+#define PBI_MIO 1
+#define PBI_PROTO80 1
+#define PBI_XLD 1
+#define PLATFORM_MAP_PALETTE 1
+#define RETSIGTYPE void
+#define SDL 1
+#define SELECT_TYPE_ARG1 int
+#define SELECT_TYPE_ARG234 (fd_set *)
+#define SELECT_TYPE_ARG5 (struct timeval *)
+#define SOUND 1
+#define SOUND_CALLBACK 1
+#define SOUND_THIN_API 1
+#define STDC_HEADERS 1
+#define STEREO_SOUND 1
+#define SUPPORTS_CHANGE_VIDEOMODE 1
+#define SUPPORTS_PLATFORM_CONFIGSAVE 1
+#define SUPPORTS_PLATFORM_CONFIGURE 1
+#define SUPPORTS_PLATFORM_PALETTEUPDATE 1
+#define SUPPORTS_PLATFORM_TIME 1
+#define SYNCHRONIZED_SOUND 1
+#define TIME_WITH_SYS_TIME 1
+#define XEP80_EMULATION 1
diff --git a/src/app/atari800/target.mk b/src/app/atari800/target.mk
new file mode 100644
index 0000000..449ec36
--- /dev/null
+++ b/src/app/atari800/target.mk
@@ -0,0 +1,26 @@
+TARGET := atari800
+
+ATARI800_DIR := $(call select_from_ports,atari800)/src/app/atari800
+
+FILTER_OUT_SRC := atari_basic.c atari_curses.c atari_falcon.c atari_ps2.c \
+                  atari_rpi.c atari_x11.c joycfg.c mkimg.c rdevice.c \
+                  sound_falcon.c sound_oss.c sdl/video_gl.c
+
+SRC_C := $(notdir $(wildcard $(ATARI800_DIR)/src/*.c))
+SRC_C += $(addprefix sdl/,$(notdir $(wildcard $(ATARI800_DIR)/src/sdl/*.c)))
+SRC_C += atari_ntsc/atari_ntsc.c
+
+SRC_C := $(filter-out $(FILTER_OUT_SRC),$(SRC_C))
+
+vpath %.c $(ATARI800_DIR)/src
+
+INC_DIR += $(ATARI800_DIR)/src $(PRG_DIR)
+
+CC_WARN := -Wall -Wno-unused-but-set-variable -Wno-logical-not-parentheses
+
+LIBS += sdl sdlmain zlib libc libpng
+
+$(TARGET): atari800_rom.tar
+atari800_rom.tar:
+	$(VERBOSE)cd $(ATARI800_DIR)/xformer; tar cf $(PWD)/bin/$@ *.ROM
+