diff --git a/src/mame/drivers/ddealer.c b/src/mame/drivers/ddealer.c
index 6d8d54e736f..46dc8c38cd1 100644
--- a/src/mame/drivers/ddealer.c
+++ b/src/mame/drivers/ddealer.c
@@ -9,7 +9,7 @@
     TODO:
     -When you use the "gun card" the game gives "minus" points,but points are always added,inaccurate protection?
     -Understand better the video emulation and convert it to tilemaps;
-    -A Double Dealer manual is needed for the coinage settings and coin/credit simulation;
+    -Coinage settings based on those listed at www.crazykong.com/dips/DoubleDealer.txt - coin/credit simulation need fixing;
     -Decap + emulate MCU, required if the random number generation is going to be accurate;
 
 ==========================================================================================================
@@ -521,55 +521,45 @@ static INPUT_PORTS_START( ddealer )
 
 	/*bits 0-7 are almost surely to be coinage.*/
 	PORT_START("DSW1")
-	PORT_DIPNAME( 0x01, 0x01, DEF_STR( Unknown ) )
-	PORT_DIPSETTING(    0x01, DEF_STR( Off ) )
-	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
-	PORT_DIPNAME( 0x02, 0x02, DEF_STR( Unknown ) )
-	PORT_DIPSETTING(    0x02, DEF_STR( Off ) )
-	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
-	PORT_DIPNAME( 0x04, 0x04, DEF_STR( Unknown ) )
-	PORT_DIPSETTING(    0x04, DEF_STR( Off ) )
-	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
-	PORT_DIPNAME( 0x08, 0x08, DEF_STR( Unknown ) )
-	PORT_DIPSETTING(    0x08, DEF_STR( Off ) )
-	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
-	PORT_DIPNAME( 0x10, 0x10, DEF_STR( Unknown ) )
-	PORT_DIPSETTING(    0x10, DEF_STR( Off ) )
-	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
-	PORT_DIPNAME( 0x20, 0x20, DEF_STR( Unknown ) )
-	PORT_DIPSETTING(    0x20, DEF_STR( Off ) )
-	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
-	PORT_DIPNAME( 0x40, 0x40, DEF_STR( Unknown ) )
-	PORT_DIPSETTING(    0x40, DEF_STR( Off ) )
-	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
-	PORT_DIPNAME( 0x80, 0x80, DEF_STR( Unknown ) )
-	PORT_DIPSETTING(    0x80, DEF_STR( Off ) )
-	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
-
-	PORT_DIPNAME( 0x0100, 0x0100, DEF_STR( Flip_Screen ) )
-	PORT_DIPSETTING(    0x0100, DEF_STR( Off ) )
-	PORT_DIPSETTING(    0x0000, DEF_STR( On ) )
-	PORT_DIPNAME( 0x0200, 0x0000, DEF_STR( Demo_Sounds ) )
-	PORT_DIPSETTING(    0x0200, DEF_STR( Off ) )
-	PORT_DIPSETTING(    0x0000, DEF_STR( On ) )
-	PORT_DIPNAME( 0x0400, 0x0000, DEF_STR( Language ) )
-	PORT_DIPSETTING(    0x0400, DEF_STR( Japanese ) )
-	PORT_DIPSETTING(    0x0000, DEF_STR( English ) )
-	PORT_DIPNAME( 0x0800, 0x0800, DEF_STR( Unknown ) )
-	PORT_DIPSETTING(    0x0800, DEF_STR( Off ) )
-	PORT_DIPSETTING(    0x0000, DEF_STR( On ) )
-	PORT_DIPNAME( 0x1000, 0x1000, DEF_STR( Unknown ) )
-	PORT_DIPSETTING(    0x1000, DEF_STR( Off ) )
-	PORT_DIPSETTING(    0x0000, DEF_STR( On ) )
-	PORT_DIPNAME( 0x2000, 0x2000, DEF_STR( Unknown ) )
-	PORT_DIPSETTING(    0x2000, DEF_STR( Off ) )
-	PORT_DIPSETTING(    0x0000, DEF_STR( On ) )
-	PORT_DIPNAME( 0x4000, 0x4000, DEF_STR( Unknown ) )
-	PORT_DIPSETTING(    0x4000, DEF_STR( Off ) )
-	PORT_DIPSETTING(    0x0000, DEF_STR( On ) )
-	PORT_DIPNAME( 0x8000, 0x8000, DEF_STR( Unknown ) )
-	PORT_DIPSETTING(    0x8000, DEF_STR( Off ) )
-	PORT_DIPSETTING(    0x0000, DEF_STR( On ) )
+	PORT_DIPUNUSED_DIPLOC( 0x0001, IP_ACTIVE_LOW, "SW1:8" )	/* Listed as "Always Off" */
+	PORT_DIPUNUSED_DIPLOC( 0x0002, IP_ACTIVE_LOW, "SW1:7" )	/* Listed as "Always Off" */
+	PORT_DIPNAME( 0x001c, 0x001c, DEF_STR( Coin_B ) )		PORT_DIPLOCATION("SW1:6,5,4")
+	PORT_DIPSETTING(      0x0004, DEF_STR( 1C_4C ) )
+	PORT_DIPSETTING(      0x0014, DEF_STR( 1C_3C ) )
+	PORT_DIPSETTING(      0x000c, DEF_STR( 1C_2C ) )
+	PORT_DIPSETTING(      0x001c, DEF_STR( 1C_1C ) )
+	PORT_DIPSETTING(      0x0018, "18" ) /* Not listed in "dips" text, but used - Value unknown for now */
+	PORT_DIPSETTING(      0x0010, "10" ) /* Not listed in "dips" text, but used - Value unknown for now */
+	PORT_DIPSETTING(      0x0008, "08" ) /* Not listed in "dips" text, but used - Value unknown for now */
+	PORT_DIPSETTING(      0x0000, DEF_STR( Free_Play ) )
+	PORT_DIPNAME( 0x00e0, 0x00e0, DEF_STR( Coin_A ) )		PORT_DIPLOCATION("SW1:3,2,1")
+	PORT_DIPSETTING(      0x0020, DEF_STR( 1C_4C ) )
+	PORT_DIPSETTING(      0x00a0, DEF_STR( 1C_3C ) )
+	PORT_DIPSETTING(      0x0060, DEF_STR( 1C_2C ) )
+	PORT_DIPSETTING(      0x00e0, DEF_STR( 1C_1C ) )
+	PORT_DIPSETTING(      0x00c0, "c0" ) /* Not listed in "dips" text, but used - Value unknown for now */
+	PORT_DIPSETTING(      0x0080, "80" ) /* Not listed in "dips" text, but used - Value unknown for now */
+	PORT_DIPSETTING(      0x0040, "40" ) /* Not listed in "dips" text, but used - Value unknown for now */
+	PORT_DIPSETTING(      0x0000, DEF_STR( Free_Play ) )
+	PORT_DIPNAME( 0x0100, 0x0100, DEF_STR( Flip_Screen ) )		PORT_DIPLOCATION("SW2:8")
+	PORT_DIPSETTING(      0x0100, DEF_STR( Off ) )
+	PORT_DIPSETTING(      0x0000, DEF_STR( On ) )
+	PORT_DIPNAME( 0x0200, 0x0000, DEF_STR( Demo_Sounds ) )		PORT_DIPLOCATION("SW2:7")
+	PORT_DIPSETTING(      0x0200, DEF_STR( Off ) )
+	PORT_DIPSETTING(      0x0000, DEF_STR( On ) )
+	PORT_DIPNAME( 0x0400, 0x0000, DEF_STR( Language ) )		PORT_DIPLOCATION("SW2:6")
+	PORT_DIPSETTING(      0x0400, DEF_STR( Japanese ) )
+	PORT_DIPSETTING(      0x0000, DEF_STR( English ) )
+	PORT_DIPNAME( 0x1800, 0x1800, DEF_STR( Difficulty ) )		PORT_DIPLOCATION("SW2:5,4")
+	PORT_DIPSETTING(      0x0800, DEF_STR( Easy ) )
+	PORT_DIPSETTING(      0x1800, DEF_STR( Normal ) )
+	PORT_DIPSETTING(      0x1000, DEF_STR( Hard ) )
+	PORT_DIPSETTING(      0x0000, DEF_STR( Hardest ) )
+	PORT_DIPNAME( 0x2000, 0x2000, "Lady Stripping" )		PORT_DIPLOCATION("SW2:3")
+	PORT_DIPSETTING(      0x0000, DEF_STR( Off ) )
+	PORT_DIPSETTING(      0x2000, DEF_STR( On ) )
+	PORT_DIPUNUSED_DIPLOC( 0x4000, IP_ACTIVE_LOW, "SW2:2" )	/* Listed as "Always Off" */
+	PORT_DIPUNUSED_DIPLOC( 0x8000, IP_ACTIVE_LOW, "SW2:1" )	/* Listed as "Always Off" */
 
 	PORT_START("UNK")
 INPUT_PORTS_END