diff --git a/src/emu/driver.c b/src/emu/driver.c
index 48f80c17657..52cfbfa69e7 100644
--- a/src/emu/driver.c
+++ b/src/emu/driver.c
@@ -782,3 +782,8 @@ WRITE8_MEMBER( driver_device::fatal_generic_write )
 {
 	throw emu_fatalerror("Attempted to write to generic address space (offs %X = %02X)\n", offset, data);
 }
+
+void driver_device::set_led_status(int num, int value)
+{
+	::set_led_status(machine(), num, value);
+}
\ No newline at end of file
diff --git a/src/emu/driver.h b/src/emu/driver.h
index e3ad1f0dd2d..1738701d900 100644
--- a/src/emu/driver.h
+++ b/src/emu/driver.h
@@ -402,6 +402,9 @@ public:
 	DECLARE_READ8_MEMBER( fatal_generic_read );
 	DECLARE_WRITE8_MEMBER( fatal_generic_write );
 
+	// led status handling	
+	void set_led_status(int num, int value);
+
 protected:
 	// helpers called at startup
 	virtual void driver_start();
diff --git a/src/emu/machine/machine.mak b/src/emu/machine/machine.mak
index 55d96559e4d..f277dd5b934 100644
--- a/src/emu/machine/machine.mak
+++ b/src/emu/machine/machine.mak
@@ -19,6 +19,8 @@ MACHINEOBJ = $(EMUOBJ)/machine
 #-------------------------------------------------
 
 MACHINEOBJS +=  $(MACHINEOBJ)/generic.o   	\
+				$(MACHINEOBJ)/nvram.o       \
+				$(MACHINEOBJ)/ram.o         \
 
 
 MACHINEOBJS +=  $(MACHINEOBJ)/53c7xx.o      \
@@ -130,7 +132,6 @@ MACHINEOBJS +=  $(MACHINEOBJ)/53c7xx.o      \
 				$(MACHINEOBJ)/nscsi_bus.o   \
 				$(MACHINEOBJ)/nscsi_cd.o    \
 				$(MACHINEOBJ)/nscsi_hd.o    \
-				$(MACHINEOBJ)/nvram.o       \
 				$(MACHINEOBJ)/pc16552d.o    \
 				$(MACHINEOBJ)/pccard.o      \
 				$(MACHINEOBJ)/pcf8593.o     \
@@ -140,7 +141,6 @@ MACHINEOBJS +=  $(MACHINEOBJ)/53c7xx.o      \
 				$(MACHINEOBJ)/pic8259.o     \
 				$(MACHINEOBJ)/pit8253.o     \
 				$(MACHINEOBJ)/pla.o         \
-				$(MACHINEOBJ)/ram.o         \
 				$(MACHINEOBJ)/rf5c296.o     \
 				$(MACHINEOBJ)/roc10937.o    \
 				$(MACHINEOBJ)/rp5c01.o      \
diff --git a/src/emu/video/video.mak b/src/emu/video/video.mak
index d803ca542a3..3f5e2337dd8 100644
--- a/src/emu/video/video.mak
+++ b/src/emu/video/video.mak
@@ -21,57 +21,398 @@ VIDEOOBJ = $(EMUOBJ)/video
 VIDEOOBJS+= $(VIDEOOBJ)/generic.o   	\
 			$(VIDEOOBJ)/resnet.o    	\
 			$(VIDEOOBJ)/rgbutil.o   	\
+			$(VIDEOOBJ)/vector.o		\
 
-VIDEOOBJS+= $(VIDEOOBJ)/315_5124.o      \
-			$(VIDEOOBJ)/bufsprite.o     \
-			$(VIDEOOBJ)/cdp1861.o       \
-			$(VIDEOOBJ)/cdp1862.o       \
-			$(VIDEOOBJ)/cgapal.o        \
-			$(VIDEOOBJ)/crt9007.o       \
-			$(VIDEOOBJ)/crt9021.o       \
-			$(VIDEOOBJ)/crt9212.o       \
-			$(VIDEOOBJ)/dl1416.o        \
-			$(VIDEOOBJ)/dm9368.o        \
-			$(VIDEOOBJ)/ef9340_1.o      \
-			$(VIDEOOBJ)/h63484.o        \
-			$(VIDEOOBJ)/hd44102.o       \
-			$(VIDEOOBJ)/hd44352.o       \
-			$(VIDEOOBJ)/hd44780.o       \
-			$(VIDEOOBJ)/hd61830.o       \
-			$(VIDEOOBJ)/hd63484.o       \
-			$(VIDEOOBJ)/hd66421.o       \
-			$(VIDEOOBJ)/huc6202.o       \
-			$(VIDEOOBJ)/huc6260.o       \
-			$(VIDEOOBJ)/huc6261.o       \
-			$(VIDEOOBJ)/huc6270.o       \
-			$(VIDEOOBJ)/huc6272.o       \
-			$(VIDEOOBJ)/i8244.o         \
-			$(VIDEOOBJ)/i8275.o         \
-			$(VIDEOOBJ)/i8275x.o        \
-			$(VIDEOOBJ)/k053250.o       \
-			$(VIDEOOBJ)/m50458.o        \
-			$(VIDEOOBJ)/mb90082.o       \
-			$(VIDEOOBJ)/mc6845.o        \
-			$(VIDEOOBJ)/mc6847.o        \
-			$(VIDEOOBJ)/msm6255.o       \
-			$(VIDEOOBJ)/pc_cga.o        \
-			$(VIDEOOBJ)/pc_vga.o        \
-			$(VIDEOOBJ)/poly.o          \
-			$(VIDEOOBJ)/psx.o           \
-			$(VIDEOOBJ)/ramdac.o        \
-			$(VIDEOOBJ)/s2636.o         \
-			$(VIDEOOBJ)/saa5050.o       \
-			$(VIDEOOBJ)/sed1330.o       \
-			$(VIDEOOBJ)/stvvdp1.o       \
-			$(VIDEOOBJ)/stvvdp2.o       \
-			$(VIDEOOBJ)/tlc34076.o      \
-			$(VIDEOOBJ)/tms34061.o      \
-			$(VIDEOOBJ)/tms3556.o       \
-			$(VIDEOOBJ)/tms9927.o       \
-			$(VIDEOOBJ)/tms9928a.o      \
-			$(VIDEOOBJ)/upd3301.o       \
-			$(VIDEOOBJ)/upd7220.o       \
-			$(VIDEOOBJ)/upd7227.o       \
-			$(VIDEOOBJ)/v9938.o         \
-			$(VIDEOOBJ)/vector.o        \
-			$(VIDEOOBJ)/voodoo.o        \
+#-------------------------------------------------
+# 
+#-------------------------------------------------
+
+ifneq ($(filter SEGA315_5124,$(VIDEOS)),)
+VIDEOOBJS+= $(VIDEOOBJ)/315_5124.o 
+endif
+
+#-------------------------------------------------
+# 
+#-------------------------------------------------
+
+ifneq ($(filter BUFSPRITE,$(VIDEOS)),)
+VIDEOOBJS+= $(VIDEOOBJ)/bufsprite.o
+endif
+
+#-------------------------------------------------
+# 
+#-------------------------------------------------
+
+ifneq ($(filter CDP1861,$(VIDEOS)),)
+VIDEOOBJS+= $(VIDEOOBJ)/cdp1861.o  
+endif
+
+#-------------------------------------------------
+# 
+#-------------------------------------------------
+
+ifneq ($(filter CDP1862,$(VIDEOS)),)
+VIDEOOBJS+= $(VIDEOOBJ)/cdp1862.o  
+endif
+
+#-------------------------------------------------
+# 
+#-------------------------------------------------
+
+ifneq ($(filter CRT9007,$(VIDEOS)),)
+VIDEOOBJS+= $(VIDEOOBJ)/crt9007.o  
+endif
+
+#-------------------------------------------------
+# 
+#-------------------------------------------------
+
+ifneq ($(filter CRT9021,$(VIDEOS)),)
+VIDEOOBJS+= $(VIDEOOBJ)/crt9021.o  
+endif
+
+#-------------------------------------------------
+# 
+#-------------------------------------------------
+
+ifneq ($(filter CRT9212,$(VIDEOS)),)
+VIDEOOBJS+= $(VIDEOOBJ)/crt9212.o  
+endif
+
+#-------------------------------------------------
+# 
+#-------------------------------------------------
+
+ifneq ($(filter DL1416,$(VIDEOS)),)
+VIDEOOBJS+= $(VIDEOOBJ)/dl1416.o
+endif
+
+#-------------------------------------------------
+# 
+#-------------------------------------------------
+
+ifneq ($(filter DM9368,$(VIDEOS)),)
+VIDEOOBJS+= $(VIDEOOBJ)/dm9368.o
+endif
+
+#-------------------------------------------------
+# 
+#-------------------------------------------------
+
+ifneq ($(filter EF9340_1,$(VIDEOS)),)
+VIDEOOBJS+= $(VIDEOOBJ)/ef9340_1.o 
+endif
+
+#-------------------------------------------------
+# 
+#-------------------------------------------------
+
+ifneq ($(filter H63484,$(VIDEOS)),)
+VIDEOOBJS+= $(VIDEOOBJ)/h63484.o   
+endif
+
+#-------------------------------------------------
+# 
+#-------------------------------------------------
+
+ifneq ($(filter HD44102,$(VIDEOS)),)
+VIDEOOBJS+= $(VIDEOOBJ)/hd44102.o  
+endif
+
+#-------------------------------------------------
+# 
+#-------------------------------------------------
+
+ifneq ($(filter HD44352,$(VIDEOS)),)
+VIDEOOBJS+= $(VIDEOOBJ)/hd44352.o  
+endif
+
+#-------------------------------------------------
+# 
+#-------------------------------------------------
+
+ifneq ($(filter HD44780,$(VIDEOS)),)
+VIDEOOBJS+= $(VIDEOOBJ)/hd44780.o  
+endif
+
+#-------------------------------------------------
+# 
+#-------------------------------------------------
+
+ifneq ($(filter HD61830,$(VIDEOS)),)
+VIDEOOBJS+= $(VIDEOOBJ)/hd61830.o  
+endif
+
+#-------------------------------------------------
+# 
+#-------------------------------------------------
+
+ifneq ($(filter HD63484,$(VIDEOS)),)
+VIDEOOBJS+= $(VIDEOOBJ)/hd63484.o  
+endif
+
+#-------------------------------------------------
+# 
+#-------------------------------------------------
+
+ifneq ($(filter HD66421,$(VIDEOS)),)
+VIDEOOBJS+= $(VIDEOOBJ)/hd66421.o  
+endif
+
+#-------------------------------------------------
+# 
+#-------------------------------------------------
+
+ifneq ($(filter HUC6202,$(VIDEOS)),)
+VIDEOOBJS+= $(VIDEOOBJ)/huc6202.o  
+endif
+
+#-------------------------------------------------
+# 
+#-------------------------------------------------
+
+ifneq ($(filter HUC6260,$(VIDEOS)),)
+VIDEOOBJS+= $(VIDEOOBJ)/huc6260.o  
+endif
+
+#-------------------------------------------------
+# 
+#-------------------------------------------------
+
+ifneq ($(filter HUC6261,$(VIDEOS)),)
+VIDEOOBJS+= $(VIDEOOBJ)/huc6261.o  
+endif
+
+#-------------------------------------------------
+# 
+#-------------------------------------------------
+
+ifneq ($(filter HUC6270,$(VIDEOS)),)
+VIDEOOBJS+= $(VIDEOOBJ)/huc6270.o  
+endif
+
+#-------------------------------------------------
+# 
+#-------------------------------------------------
+
+ifneq ($(filter HUC6272,$(VIDEOS)),)
+VIDEOOBJS+= $(VIDEOOBJ)/huc6272.o  
+endif
+
+#-------------------------------------------------
+# 
+#-------------------------------------------------
+
+ifneq ($(filter I8244,$(VIDEOS)),)
+VIDEOOBJS+= $(VIDEOOBJ)/i8244.o    
+endif
+
+#-------------------------------------------------
+# 
+#-------------------------------------------------
+
+ifneq ($(filter I8275,$(VIDEOS)),)
+VIDEOOBJS+= $(VIDEOOBJ)/i8275.o         \
+			$(VIDEOOBJ)/i8275x.o 
+endif
+
+#-------------------------------------------------
+# 
+#-------------------------------------------------
+
+ifneq ($(filter K053250,$(VIDEOS)),)			
+VIDEOOBJS+= $(VIDEOOBJ)/k053250.o
+endif
+
+#-------------------------------------------------
+# 
+#-------------------------------------------------
+
+ifneq ($(filter M50458,$(VIDEOS)),)
+VIDEOOBJS+= $(VIDEOOBJ)/m50458.o   
+endif
+
+#-------------------------------------------------
+# 
+#-------------------------------------------------
+
+ifneq ($(filter MB90082,$(VIDEOS)),)
+VIDEOOBJS+= $(VIDEOOBJ)/mb90082.o  
+endif
+
+#-------------------------------------------------
+# 
+#-------------------------------------------------
+
+ifneq ($(filter MC6845,$(VIDEOS)),)
+VIDEOOBJS+= $(VIDEOOBJ)/mc6845.o   
+endif
+
+#-------------------------------------------------
+# 
+#-------------------------------------------------
+
+ifneq ($(filter MC6847,$(VIDEOS)),)
+VIDEOOBJS+= $(VIDEOOBJ)/mc6847.o   
+endif
+
+#-------------------------------------------------
+# 
+#-------------------------------------------------
+
+ifneq ($(filter MSM6255,$(VIDEOS)),)
+VIDEOOBJS+= $(VIDEOOBJ)/msm6255.o  
+endif
+
+#-------------------------------------------------
+# 
+#-------------------------------------------------
+
+ifneq ($(filter PC_CGA,$(VIDEOS)),)
+VIDEOOBJS+= $(VIDEOOBJ)/pc_cga.o        \
+			$(VIDEOOBJ)/cgapal.o 
+endif
+
+#-------------------------------------------------
+# 
+#-------------------------------------------------
+
+ifneq ($(filter PC_VGA,$(VIDEOS)),)			
+VIDEOOBJS+= $(VIDEOOBJ)/pc_vga.o   
+endif
+
+#-------------------------------------------------
+# 
+#-------------------------------------------------
+
+ifneq ($(filter POLY,$(VIDEOS)),)
+VIDEOOBJS+= $(VIDEOOBJ)/poly.o 
+endif
+
+#-------------------------------------------------
+# 
+#-------------------------------------------------
+
+ifneq ($(filter PSX,$(VIDEOS)),)
+VIDEOOBJS+= $(VIDEOOBJ)/psx.o 
+endif
+
+#-------------------------------------------------
+# 
+#-------------------------------------------------
+
+ifneq ($(filter RAMDAC,$(VIDEOS)),)
+VIDEOOBJS+= $(VIDEOOBJ)/ramdac.o 
+endif
+
+#-------------------------------------------------
+# 
+#-------------------------------------------------
+
+ifneq ($(filter S2636,$(VIDEOS)),)
+VIDEOOBJS+= $(VIDEOOBJ)/s2636.o 
+endif
+
+#-------------------------------------------------
+# 
+#-------------------------------------------------
+
+ifneq ($(filter SAA5050,$(VIDEOS)),)
+VIDEOOBJS+= $(VIDEOOBJ)/saa5050.o
+endif
+
+#-------------------------------------------------
+# 
+#-------------------------------------------------
+ifneq ($(filter SED1330,$(VIDEOS)),)
+VIDEOOBJS+= $(VIDEOOBJ)/sed1330.o
+endif
+
+#-------------------------------------------------
+# 
+#-------------------------------------------------
+
+ifneq ($(filter STVVDP,$(VIDEOS)),)
+VIDEOOBJS+= $(VIDEOOBJ)/stvvdp1.o       \
+			$(VIDEOOBJ)/stvvdp2.o
+endif
+
+#-------------------------------------------------
+# 
+#-------------------------------------------------
+
+ifneq ($(filter TLC34076,$(VIDEOS)),)
+VIDEOOBJS+= $(VIDEOOBJ)/tlc34076.o 
+endif
+
+#-------------------------------------------------
+# 
+#-------------------------------------------------
+
+ifneq ($(filter TMS34061,$(VIDEOS)),)
+VIDEOOBJS+= $(VIDEOOBJ)/tms34061.o 
+endif
+
+#-------------------------------------------------
+# 
+#-------------------------------------------------
+
+ifneq ($(filter TMS3556,$(VIDEOS)),)
+VIDEOOBJS+= $(VIDEOOBJ)/tms3556.o 
+endif
+
+#-------------------------------------------------
+# 
+#-------------------------------------------------
+
+ifneq ($(filter TMS9927,$(VIDEOS)),)
+VIDEOOBJS+= $(VIDEOOBJ)/tms9927.o 
+endif
+
+#-------------------------------------------------
+# 
+#-------------------------------------------------
+
+ifneq ($(filter TMS9928A,$(VIDEOS)),)
+VIDEOOBJS+= $(VIDEOOBJ)/tms9928a.o
+endif
+
+#-------------------------------------------------
+# 
+#-------------------------------------------------
+
+ifneq ($(filter UPD3301,$(VIDEOS)),)
+VIDEOOBJS+= $(VIDEOOBJ)/upd3301.o
+endif
+
+#-------------------------------------------------
+# 
+#-------------------------------------------------
+
+ifneq ($(filter UPD7220,$(VIDEOS)),)
+VIDEOOBJS+= $(VIDEOOBJ)/upd7220.o 
+endif
+
+#-------------------------------------------------
+# 
+#-------------------------------------------------
+
+ifneq ($(filter UPD7227,$(VIDEOS)),)
+VIDEOOBJS+= $(VIDEOOBJ)/upd7227.o
+endif
+
+#-------------------------------------------------
+# 
+#-------------------------------------------------
+
+ifneq ($(filter V9938,$(VIDEOS)),)
+VIDEOOBJS+= $(VIDEOOBJ)/v9938.o 
+endif
+
+#-------------------------------------------------
+# 
+#-------------------------------------------------
+
+ifneq ($(filter VOODOO,$(VIDEOS)),)
+VIDEOOBJS+= $(VIDEOOBJ)/voodoo.o
+endif
diff --git a/src/mame/mame.mak b/src/mame/mame.mak
index 7b629cfa187..0a670ee2e88 100644
--- a/src/mame/mame.mak
+++ b/src/mame/mame.mak
@@ -261,6 +261,60 @@ SOUNDS += YMZ770
 SOUNDS += T6721A
 SOUNDS += MOS7360
 
+#-------------------------------------------------
+# specify available video cores
+#-------------------------------------------------
+
+VIDEOS += SEGA315_5124
+VIDEOS += BUFSPRITE
+#VIDEOS += CDP1861
+#VIDEOS += CDP1862
+#VIDEOS += CRT9007
+#VIDEOS += CRT9021
+#VIDEOS += CRT9212
+#VIDEOS += DL1416
+#VIDEOS += DM9368
+#VIDEOS += EF9340_1
+VIDEOS += H63484
+#VIDEOS += HD44102
+#VIDEOS += HD44352
+#VIDEOS += HD44780
+VIDEOS += HD61830
+VIDEOS += HD63484
+#VIDEOS += HD66421
+VIDEOS += HUC6202
+VIDEOS += HUC6260
+#VIDEOS += HUC6261
+VIDEOS += HUC6270
+#VIDEOS += HUC6272
+#VIDEOS += I8244
+VIDEOS += I8275
+VIDEOS += K053250
+VIDEOS += M50458
+VIDEOS += MB90082
+VIDEOS += MC6845
+#VIDEOS += MC6847
+#VIDEOS += MSM6255
+VIDEOS += PC_CGA
+VIDEOS += PC_VGA
+VIDEOS += POLY
+VIDEOS += PSX
+VIDEOS += RAMDAC
+VIDEOS += S2636
+VIDEOS += SAA5050
+#VIDEOS += SED1330
+VIDEOS += STVVDP
+VIDEOS += TLC34076
+VIDEOS += TMS34061
+#VIDEOS += TMS3556
+VIDEOS += TMS9927
+VIDEOS += TMS9928A
+#VIDEOS += UPD3301
+#VIDEOS += UPD7220
+#VIDEOS += UPD7227
+VIDEOS += V9938
+VIDEOS += VOODOO
+
 #-------------------------------------------------
 # this is the list of driver libraries that
 # comprise MAME plus mamedriv.o which contains
diff --git a/src/mame/tiny.mak b/src/mame/tiny.mak
index 1c67ac1e8f8..3d79a7f5a73 100644
--- a/src/mame/tiny.mak
+++ b/src/mame/tiny.mak
@@ -63,6 +63,9 @@ SOUNDS += YM3812
 SOUNDS += CEM3394
 
 
+#-------------------------------------------------
+# specify available video cores
+#-------------------------------------------------
 
 #-------------------------------------------------
 # This is the list of files that are necessary
diff --git a/src/mess/mess.mak b/src/mess/mess.mak
index 99a356e7e86..892db7772f6 100644
--- a/src/mess/mess.mak
+++ b/src/mess/mess.mak
@@ -246,6 +246,60 @@ SOUNDS += AWACS
 SOUNDS += T6721A
 SOUNDS += MOS7360
 
+#-------------------------------------------------
+# specify available video cores
+#-------------------------------------------------
+
+VIDEOS += SEGA315_5124
+#VIDEOS += BUFSPRITE
+VIDEOS += CDP1861
+VIDEOS += CDP1862
+VIDEOS += CRT9007
+VIDEOS += CRT9021
+VIDEOS += CRT9212
+VIDEOS += DL1416
+VIDEOS += DM9368
+VIDEOS += EF9340_1
+#VIDEOS += H63484
+VIDEOS += HD44102
+VIDEOS += HD44352
+VIDEOS += HD44780
+VIDEOS += HD61830
+#VIDEOS += HD63484
+VIDEOS += HD66421
+VIDEOS += HUC6202
+VIDEOS += HUC6260
+VIDEOS += HUC6261
+VIDEOS += HUC6270
+VIDEOS += HUC6272
+VIDEOS += I8244
+VIDEOS += I8275
+#VIDEOS += K053250
+#VIDEOS += M50458
+#VIDEOS += MB90082
+VIDEOS += MC6845
+VIDEOS += MC6847
+VIDEOS += MSM6255
+VIDEOS += PC_CGA
+VIDEOS += PC_VGA
+#VIDEOS += POLY
+VIDEOS += PSX
+VIDEOS += RAMDAC
+VIDEOS += S2636
+VIDEOS += SAA5050
+VIDEOS += SED1330
+VIDEOS += STVVDP
+#VIDEOS += TLC34076
+#VIDEOS += TMS34061
+VIDEOS += TMS3556
+VIDEOS += TMS9927
+VIDEOS += TMS9928A
+VIDEOS += UPD3301
+VIDEOS += UPD7220
+VIDEOS += UPD7227
+VIDEOS += V9938
+#VIDEOS += VOODOO
+
 #-------------------------------------------------
 # this is the list of driver libraries that
 # comprise MESS plus messdriv.o which contains
diff --git a/src/mess/tiny.mak b/src/mess/tiny.mak
index f9815ece04e..9f4f6e017e3 100644
--- a/src/mess/tiny.mak
+++ b/src/mess/tiny.mak
@@ -35,6 +35,12 @@ SOUNDS += SN76496
 
 
 
+#-------------------------------------------------
+# specify available video cores
+#-------------------------------------------------
+
+VIDEOS += TMS9928A
+
 #-------------------------------------------------
 # This is the list of files that are necessary
 # for building all of the drivers referenced