diff --git a/scripts/target/mame/mess.lua b/scripts/target/mame/mess.lua
index b979a75b300..7a988e437e2 100644
--- a/scripts/target/mame/mess.lua
+++ b/scripts/target/mame/mess.lua
@@ -3413,6 +3413,7 @@ files {
 	MAME_DIR .. "src/mame/drivers/alesis_qs.cpp",
 	MAME_DIR .. "src/mame/drivers/alphasma.cpp",
 	MAME_DIR .. "src/mame/drivers/ampro.cpp",
+	MAME_DIR .. "src/mame/drivers/ampscarp.cpp",
 	MAME_DIR .. "src/mame/drivers/amust.cpp",
 	MAME_DIR .. "src/mame/drivers/anzterm.cpp",
 	MAME_DIR .. "src/mame/drivers/applix.cpp",
@@ -3541,6 +3542,7 @@ files {
 	MAME_DIR .. "src/mame/drivers/p8k.cpp",
 	MAME_DIR .. "src/mame/drivers/pegasus.cpp",
 	MAME_DIR .. "src/mame/drivers/pencil2.cpp",
+	MAME_DIR .. "src/mame/drivers/perq.cpp",
 	MAME_DIR .. "src/mame/drivers/pes.cpp",
 	MAME_DIR .. "src/mame/includes/pes.h",
 	MAME_DIR .. "src/mame/drivers/pipbug.cpp",
@@ -3548,6 +3550,7 @@ files {
 	MAME_DIR .. "src/mame/drivers/pm68k.cpp",
 	MAME_DIR .. "src/mame/drivers/pockchal.cpp",
 	MAME_DIR .. "src/mame/drivers/poly.cpp",
+	MAME_DIR .. "src/mame/drivers/powerstack.cpp",
 	MAME_DIR .. "src/mame/drivers/proteus3.cpp",
 	MAME_DIR .. "src/mame/drivers/pt68k4.cpp",
 	MAME_DIR .. "src/mame/drivers/ptcsol.cpp",
diff --git a/src/mame/drivers/powerstack.cpp b/src/mame/drivers/powerstack.cpp
new file mode 100644
index 00000000000..b09a206a57a
--- /dev/null
+++ b/src/mame/drivers/powerstack.cpp
@@ -0,0 +1,40 @@
+// license:BSD-3-Clause
+// copyright-holders:
+/***********************************************************************************************************************************
+
+2017-10-29 Skeleton
+
+Motorola Powerstack II. CPU is a RISC-type.
+
+************************************************************************************************************************************/
+
+#include "emu.h"
+//#include "cpu/mcs51/mcs51.h"
+
+class powerstack_state : public driver_device
+{
+public:
+	powerstack_state(const machine_config &mconfig, device_type type, const char *tag)
+		: driver_device(mconfig, type, tag)
+//		, maincpu(*this, "maincpu")
+	{ }
+
+protected:
+//	required_device<i80c52_device> maincpu;
+};
+
+static INPUT_PORTS_START( powerstack )
+INPUT_PORTS_END
+
+//static ADDRESS_MAP_START( prg_map, AS_PROGRAM, 8, powerstack_state )
+//ADDRESS_MAP_END
+
+static MACHINE_CONFIG_START( powerstack )
+MACHINE_CONFIG_END
+
+ROM_START( powerstk )
+	ROM_REGION( 0x80000, "maincpu", 0 )
+	ROM_LOAD( "motorola_powerstack2.bin", 0x0000, 0x80000, CRC(948e8fcd) SHA1(9a8c32b621c98bc33ee525f66747c34d39851685) )
+ROM_END
+
+COMP( 1996, powerstk, 0, 0, powerstack, powerstack, powerstack_state, 0, "Motorola", "Powerstack II", MACHINE_IS_SKELETON )
diff --git a/src/mame/mame.lst b/src/mame/mame.lst
index 966cc9fa552..83a14dacb19 100644
--- a/src/mame/mame.lst
+++ b/src/mame/mame.lst
@@ -1184,6 +1184,9 @@ videomat                        // 1990 bootleg
 @source:ampro.cpp
 ampro                           //
 
+@source:ampscarp.cpp
+ampscarp                        // Motorola Amps Car Phone
+
 @source:amspdwy.cpp
 amspdwy                         // no copyright notice, but (c) 1987 Enerdyne Technologies, Inc.
 amspdwya                        // no copyright notice, but (c) 1987 Enerdyne Technologies, Inc.
@@ -31004,6 +31007,9 @@ pexmp022                        // (c) 1997 IGT - International Game Technology
 pexmp026                        // (c) 1997 IGT - International Game Technology
 pexmp030                        // (c) 1997 IGT - International Game Technology
 
+@source:perq.cpp
+perq                            //
+
 @source:pes.cpp
 pes                             //
 
@@ -31734,6 +31740,9 @@ powerinsb                       // (c) 1993 Atlus (bootleg of USA version)
 powerinsj                       // (c) 1993 Atlus (Japan)
 powerinsp                       // prototype
 
+@source:powerstack.cpp
+powerstk                        // Motorola Powerstack II
+
 @source:pp01.cpp
 pp01                            //
 
diff --git a/src/mame/mess.flt b/src/mame/mess.flt
index 4f1dbbde1a1..998206e54c5 100644
--- a/src/mame/mess.flt
+++ b/src/mame/mess.flt
@@ -37,6 +37,7 @@ altos8600.cpp
 amico2k.cpp
 amiga.cpp
 ampro.cpp
+ampscarp.cpp
 amstr_pc.cpp
 amstrad.cpp
 amust.cpp
@@ -486,6 +487,7 @@ pegasus.cpp
 pencil2.cpp
 pentagon.cpp
 peoplepc.cpp
+perq.cpp
 pes.cpp
 pet.cpp
 pg685.cpp
@@ -511,6 +513,7 @@ polgar.cpp
 poly.cpp
 poly88.cpp
 poly880.cpp
+powerstack.cpp
 pp01.cpp
 prestige.cpp
 primo.cpp