diff --git a/python/machines.py b/python/machines.py
index b7db4d8..89b97d2 100644
--- a/python/machines.py
+++ b/python/machines.py
@@ -38,6 +38,9 @@ MACHINES = (
 
 	# 128k clones
 	# "unitron", "utrn1024",
+
+	#atari
+	"st", "megast"
 )
 
 
@@ -54,6 +57,9 @@ SLOTS = (
 	# mac nubus
 	"nb1", "nb2", "nb3", "nb4", "nb5", "nb6", "nb7",
 	"nb8", "nb9", "nba", "nbb", "nbc", "nbd", "nbe",
+
+	# st
+	"centronics", "mdin", "mdout"
 )
 
 SLOT_NAMES = {
@@ -69,7 +75,7 @@ SLOT_NAMES = {
 	"sl7":        "Slot 7",
 	"exp":        "Expansion",
 	"aux":        "Auxiliary",
-	"rs232":      "RS232",
+	"rs232":      "Modem",
 	"gameio":     "Game I/O",
 	"modem":      "Modem",
 	"printer":    "Printer",
@@ -80,4 +86,8 @@ SLOT_NAMES = {
 	"nbc":        "Slot C",
 	"nbd":        "Slot D",
 	"nbe":        "Slot E",
+
+	"centronics": "Printer",
+	"mdin":       "MIDI In",
+	"mdout":      "MIDI Out",
 }
diff --git a/python/mkmachines.py b/python/mkmachines.py
index c659764..ba58cbf 100644
--- a/python/mkmachines.py
+++ b/python/mkmachines.py
@@ -210,6 +210,8 @@ def find_media(parent, include_slots=False):
 		"bitbanger": "bitbanger", # null_modem, etc.
 		"picture_image": "picture", # a2ceyes
 		# "printer_image": "printout",
+		"midiin": "midiin",
+		"midiout": "midiout",
 	}
 	remap_slot = {
 		# now handled at the slot level.
@@ -310,6 +312,7 @@ DEVICE_EXCLUDE = set([
 	'smoc501',
 	'cfp1080s',
 	'cf', # ATA compact flash
+	'cp2024', # Conner Peripherals CP-2024 hard disk
 ])
 
 def make_device_options(slot):
@@ -445,8 +448,6 @@ def make_bios(m):
 	}
 
 
-
-
 def make_smartport(machine):
 
 
@@ -457,12 +458,14 @@ def make_smartport(machine):
 	# maclc <slot name="scsi:1" .. "scsi:7" (but 4-7 not configurable)
 	# maciix <slot name="scsi:6">
 	# macse <slot name="scsibus:6">
+	# atari st, etc: <slot name="wd1772:[0-1]">
 
 	slots = []
 	SLOTS = [
 		*['fdc:' + str(x) for x in range(0,4)],
 		*['scsi:' + str(x) for x in range(0,7)],
 		*['scsibus:' + str(x) for x in range(0,7)],
+		*['wd1772:' + str(x) for x in range(0,4)],
 
 		"sl6:0", "sl6:1", "0", "1", "2", "3"
 	]
diff --git a/python/mkmodels.py b/python/mkmodels.py
index 2890af6..2aff95e 100644
--- a/python/mkmodels.py
+++ b/python/mkmodels.py
@@ -33,6 +33,8 @@ mac_nubus_children = [
 mac_128k_children = ["mac128k", "mac512k", "mac512ke", "macplus",
 	"macse", "macsefd", "macse30", "macclasc", "macclas2", "maccclas"]
 
+atari_st_children = ["st", "megast"]
+
 tree = [
 	("Apple I", "apple1", apple1_children),
 	("Apple ][", "apple2", apple2_children),
@@ -48,6 +50,7 @@ tree = [
 	("China Education Computer", None, cec_children),
 	("Macintosh (Compact)", "macse30", mac_128k_children),
 	("Macintosh (NuBus)", "maciix", mac_nubus_children),
+	("Atari ST", "st", atari_st_children)
 ]
 
 env = {'DYLD_FALLBACK_FRAMEWORK_PATH': '../embedded'}