diff --git a/src/mame/drivers/pgm.cpp b/src/mame/drivers/pgm.cpp
index 9cb598b0928..75d01ac28cb 100644
--- a/src/mame/drivers/pgm.cpp
+++ b/src/mame/drivers/pgm.cpp
@@ -501,8 +501,6 @@ TIMER_DEVICE_CALLBACK_MEMBER(pgm_state::pgm_interrupt)
 MACHINE_START_MEMBER(pgm_state,pgm)
 {
 //  machine().base_datetime(m_systime);
-
-	m_ics = machine().device("ics");
 }
 
 MACHINE_RESET_MEMBER(pgm_state,pgm)
diff --git a/src/mame/includes/pgm.h b/src/mame/includes/pgm.h
index 439dbf664b8..926922d178f 100644
--- a/src/mame/includes/pgm.h
+++ b/src/mame/includes/pgm.h
@@ -24,20 +24,22 @@ class pgm_state : public driver_device
 {
 public:
 	pgm_state(const machine_config &mconfig, device_type type, const char *tag)
-		: driver_device(mconfig, type, tag),
-			m_videoregs(*this, "videoregs"),
-			m_videoram(*this, "videoram"),
-			m_z80_mainram(*this, "z80_mainram"),
-			m_mainram(*this, "sram"),
-			m_maincpu(*this, "maincpu"),
-			m_soundcpu(*this, "soundcpu"),
-			m_gfxdecode(*this, "gfxdecode"),
-			m_palette(*this, "palette"),
-			m_soundlatch(*this, "soundlatch"),
-			m_soundlatch3(*this, "soundlatch3")
-		{
-			m_irq4_disabled = 0;
-		}
+		: driver_device(mconfig, type, tag)
+		, m_videoregs(*this, "videoregs")
+		, m_videoram(*this, "videoram")
+		, m_z80_mainram(*this, "z80_mainram")
+		, m_mainram(*this, "sram")
+		, m_maincpu(*this, "maincpu")
+		, m_soundcpu(*this, "soundcpu")
+		, m_gfxdecode(*this, "gfxdecode")
+		, m_palette(*this, "palette")
+		, m_soundlatch(*this, "soundlatch")
+		, m_soundlatch3(*this, "soundlatch3")
+		, m_ics(*this, "ics")
+		, m_bdata(*this, "sprmask")
+	{
+		m_irq4_disabled = 0;
+	}
 
 	/* memory pointers */
 	required_shared_ptr<uint16_t> m_videoregs;
@@ -52,10 +54,8 @@ public:
 	std::unique_ptr<uint16_t[]>     m_spritebufferram; // buffered spriteram
 
 	/* video-related */
-	tilemap_t       *m_bg_tilemap;
+	tilemap_t     *m_bg_tilemap;
 	tilemap_t     *m_tx_tilemap;
-	uint16_t        *m_sprite_temp_render;
-	bitmap_rgb32      m_tmppgmbitmap;
 
 	/* devices */
 	required_device<cpu_device> m_maincpu;
@@ -64,11 +64,10 @@ public:
 	required_device<palette_device> m_palette;
 	required_device<generic_latch_8_device> m_soundlatch;
 	required_device<generic_latch_8_device> m_soundlatch3;
-	device_t *m_ics;
+	required_device<ics2115_device> m_ics;
 
 	/* used by rendering */
-	uint8_t *m_bdata;
-	size_t  m_bdatasize;
+	required_region_ptr<uint8_t> m_bdata;
 	int m_aoffset;
 	int m_boffset;
 
diff --git a/src/mame/video/pgm.cpp b/src/mame/video/pgm.cpp
index 4fde104b15c..f655e48c1b4 100644
--- a/src/mame/video/pgm.cpp
+++ b/src/mame/video/pgm.cpp
@@ -94,7 +94,7 @@ void pgm_state::draw_sprite_line( int wide, uint16_t* dest, uint8_t* destpri, in
 	{
 		int x;
 
-		msk = ((m_bdata[(m_boffset + 1) & m_bdatasize] << 8) |( m_bdata[(m_boffset + 0) & m_bdatasize] << 0));
+		msk = ((m_bdata[(m_boffset + 1) & m_bdata.mask()] << 8) |( m_bdata[(m_boffset + 0) & m_bdata.mask()] << 0));
 
 		for (x = 0; x < 16; x++)
 		{
@@ -177,8 +177,8 @@ void pgm_state::draw_sprite_new_zoomed( int wide, int high, int xpos, int ypos,
 	int xcnt = 0;
 
 
-	m_aoffset = (m_bdata[(m_boffset + 3) & m_bdatasize] << 24) | (m_bdata[(m_boffset + 2) & m_bdatasize] << 16) |
-				(m_bdata[(m_boffset + 1) & m_bdatasize] << 8) | (m_bdata[(m_boffset + 0) & m_bdatasize] << 0);
+	m_aoffset = (m_bdata[(m_boffset + 3) & m_bdata.mask()] << 24) | (m_bdata[(m_boffset + 2) & m_bdata.mask()] << 16) |
+				(m_bdata[(m_boffset + 1) & m_bdata.mask()] << 8) | (m_bdata[(m_boffset + 0) & m_bdata.mask()] << 0);
 	m_aoffset = m_aoffset >> 2; m_aoffset *= 3;
 
 	m_boffset+=4;
@@ -344,7 +344,7 @@ void pgm_state::draw_sprite_line_basic( int wide, uint16_t* dest, uint8_t* destp
 		{
 			int x;
 
-			msk = ((m_bdata[(m_boffset + 1) & m_bdatasize] << 8) |( m_bdata[(m_boffset + 0) & m_bdatasize] << 0));
+			msk = ((m_bdata[(m_boffset + 1) & m_bdata.mask()] << 8) |( m_bdata[(m_boffset + 0) & m_bdata.mask()] << 0));
 
 			for (x = 0; x < 16; x++)
 			{
@@ -386,7 +386,7 @@ void pgm_state::draw_sprite_line_basic( int wide, uint16_t* dest, uint8_t* destp
 		{
 			int x;
 
-			msk = ((m_bdata[(m_boffset + 1) & m_bdatasize] << 8) |( m_bdata[(m_boffset + 0) & m_bdatasize] << 0));
+			msk = ((m_bdata[(m_boffset + 1) & m_bdata.mask()] << 8) |( m_bdata[(m_boffset + 0) & m_bdata.mask()] << 0));
 
 			for (x = 0; x < 16; x++)
 			{
@@ -437,8 +437,8 @@ void pgm_state::draw_sprite_new_basic( int wide, int high, int xpos, int ypos, i
 	uint8_t* destpri;
 	int ycntdraw;
 
-	m_aoffset = (m_bdata[(m_boffset + 3) & m_bdatasize] << 24) | (m_bdata[(m_boffset + 2) & m_bdatasize] << 16) |
-				(m_bdata[(m_boffset + 1) & m_bdatasize] << 8) | (m_bdata[(m_boffset + 0) & m_bdatasize] << 0);
+	m_aoffset = (m_bdata[(m_boffset + 3) & m_bdata.mask()] << 24) | (m_bdata[(m_boffset + 2) & m_bdata.mask()] << 16) |
+				(m_bdata[(m_boffset + 1) & m_bdata.mask()] << 8) | (m_bdata[(m_boffset + 0) & m_bdata.mask()] << 0);
 	m_aoffset = m_aoffset >> 2; m_aoffset *= 3;
 
 	m_boffset+=4;
@@ -615,8 +615,6 @@ VIDEO_START_MEMBER(pgm_state,pgm)
 {
 	int i;
 
-	m_bdata = memregion("sprmask")->base();
-	m_bdatasize = memregion("sprmask")->bytes() - 1;
 	m_aoffset = 0;
 	m_boffset = 0;