diff --git a/src/mame/drivers/eolith.c b/src/mame/drivers/eolith.c
index a08f4efcc04..4cda8d19232 100644
--- a/src/mame/drivers/eolith.c
+++ b/src/mame/drivers/eolith.c
@@ -272,7 +272,7 @@ static MACHINE_DRIVER_START( eolith45 )
 	MDRV_SCREEN_SIZE(512, 512)
 	MDRV_SCREEN_VISIBLE_AREA(0, 319, 0, 239)
 
-	MDRV_PALETTE_INIT(BBBBB_GGGGG_RRRRR)
+	MDRV_PALETTE_INIT(RRRRR_GGGGG_BBBBB)
 	MDRV_PALETTE_LENGTH(32768)
 
 	MDRV_VIDEO_START(eolith)
diff --git a/src/mame/drivers/kaneko16.c b/src/mame/drivers/kaneko16.c
index a1f8ae0ae9e..ef062589d07 100644
--- a/src/mame/drivers/kaneko16.c
+++ b/src/mame/drivers/kaneko16.c
@@ -369,7 +369,7 @@ static ADDRESS_MAP_START( berlwall, ADDRESS_SPACE_PROGRAM, 16 )
 	AM_RANGE(0x500000, 0x500001) AM_READWRITE(kaneko16_bg15_reg_r, kaneko16_bg15_reg_w) AM_BASE(&kaneko16_bg15_reg)	// High Color Background
 	AM_RANGE(0x580000, 0x580001) AM_READWRITE(kaneko16_bg15_select_r, kaneko16_bg15_select_w) AM_BASE(&kaneko16_bg15_select)
 	AM_RANGE(0x600000, 0x60003f) AM_RAM_WRITE(kaneko16_sprites_regs_w) AM_BASE(&kaneko16_sprites_regs)	// Sprites Regs
-	AM_RANGE(0x680000, 0x680001) AM_READ_PORT("DSW_P1")
+	AM_RANGE(0x680000, 0x680001) AM_READ_PORT("P1")
 	AM_RANGE(0x680002, 0x680003) AM_READ_PORT("P2")
 	AM_RANGE(0x680004, 0x680005) AM_READ_PORT("SYSTEM")
 //  AM_RANGE(0x680006, 0x680007) AM_READ_PORT("UNK")
diff --git a/src/mame/drivers/megadriv.c b/src/mame/drivers/megadriv.c
index 76f0206c010..b70741352ec 100644
--- a/src/mame/drivers/megadriv.c
+++ b/src/mame/drivers/megadriv.c
@@ -888,7 +888,7 @@ static void megadriv_vdp_ctrl_port_w(running_machine *machine, int data)
 	}
 }
 
-static WRITE16_HANDLER( megadriv_vdp_w )
+WRITE16_HANDLER( megadriv_vdp_w )
 {
 	switch (offset<<1)
 	{
@@ -1281,7 +1281,7 @@ static UINT16 megadriv_read_hv_counters(void)
 
 }
 
-static READ16_HANDLER( megadriv_vdp_r )
+READ16_HANDLER( megadriv_vdp_r )
 {
 	UINT16 retvalue = 0;
 
diff --git a/src/mame/drivers/megadriv.h b/src/mame/drivers/megadriv.h
index 4fb8616625c..775f59e31da 100644
--- a/src/mame/drivers/megadriv.h
+++ b/src/mame/drivers/megadriv.h
@@ -25,6 +25,9 @@ void megatech_set_megadrive_z80_as_megadrive_z80(running_machine *machine);
 extern READ8_HANDLER (megatech_sms_ioport_dc_r);
 extern READ8_HANDLER (megatech_sms_ioport_dd_r);
 
+extern READ16_HANDLER( megadriv_vdp_r );
+extern WRITE16_HANDLER( megadriv_vdp_w );
+
 MACHINE_RESET( megadriv );
 VIDEO_START( megadriv );
 VIDEO_UPDATE( megadriv );