diff --git a/src/mame/drivers/aleck64.c b/src/mame/drivers/aleck64.c
index ad991aeb33c..348bbe56db9 100644
--- a/src/mame/drivers/aleck64.c
+++ b/src/mame/drivers/aleck64.c
@@ -30,7 +30,7 @@ PCB Layout
           Seta E92 Mother PCB
          |---------------------------------------------|
        --|     VOL_POT                                 |
-       |R|TA8139S                                      |
+       |R|TA8139S                                      |-
   RCA  --|  TA8201         BU9480                      |
  AUDIO   |                                             |
  PLUGS --|           AMP-NUS                           |
@@ -178,13 +178,16 @@ class aleck64_state : public n64_state
 public:
 	aleck64_state(const machine_config &mconfig, device_type type, const char *tag)
 		: n64_state(mconfig, type, tag),
+		  m_e90_vram(*this,"e90vram"),
 			m_dip_read_offset(0) { }
 
+	optional_shared_ptr<UINT32> m_e90_vram;
 	DECLARE_DRIVER_INIT(aleck64);
 	DECLARE_WRITE32_MEMBER(aleck_dips_w);
 	DECLARE_READ32_MEMBER(aleck_dips_r);
 	DECLARE_READ16_MEMBER(e90_prot_r);
 	DECLARE_WRITE16_MEMBER(e90_prot_w);
+	UINT32 screen_update_e90(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);
 private:
 	UINT32 m_dip_read_offset;
 };
@@ -349,7 +352,7 @@ WRITE16_MEMBER(aleck64_state::e90_prot_w)
 
 static ADDRESS_MAP_START( e90_map, AS_PROGRAM, 32, aleck64_state )
 	AM_IMPORT_FROM( n64_map )
-	AM_RANGE(0xd0000000, 0xd0000fff) AM_RAM // x/y offsets
+	AM_RANGE(0xd0000000, 0xd0000fff) AM_RAM AM_SHARE("e90vram")// x/y offsets
 	AM_RANGE(0xd0010000, 0xd0010fff) AM_RAM // RGB555 palette
 	AM_RANGE(0xd0030000, 0xd003001f) AM_READWRITE16(e90_prot_r, e90_prot_w,0xffffffff)
 ADDRESS_MAP_END
@@ -873,9 +876,54 @@ static MACHINE_CONFIG_START( aleck64, aleck64_state )
 	MCFG_N64_PERIPHS_ADD("rcp");
 MACHINE_CONFIG_END
 
+UINT32 aleck64_state::screen_update_e90(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect)
+{
+	static int testx,testy;
+	bitmap.fill(0, cliprect);
+	screen_update_n64(screen,bitmap,cliprect);
+	
+	if(machine().input().code_pressed(KEYCODE_Z))
+		testx++;
+
+	if(machine().input().code_pressed(KEYCODE_X))
+		testx--;
+
+	if(machine().input().code_pressed_once(KEYCODE_A))
+		testy++;
+
+	if(machine().input().code_pressed_once(KEYCODE_S))
+		testy--;
+		
+	popmessage("%d %d",testx,testy);
+	for(int offs=0;offs<0x1000/4;offs+=2)
+	{
+		int xi,yi;
+		//UINT16 tile = m_e90_vram[offs] >> 16;
+		UINT16 pal = m_e90_vram[offs] & 0x7f; // guess: 0x1000 entries / word / 4bpp = 0x7f
+		INT16 x = m_e90_vram[offs+1] >> 16;
+		INT16 y = m_e90_vram[offs+1] & 0xffff;
+		x>>=1;
+		
+		for(yi=0;yi<8;yi++)
+			for(xi=0;xi<8;xi++)
+			{
+				int res_x,res_y;
+				res_x = x+xi + 4;
+				res_y = y+yi + 7;
+				
+				if(cliprect.contains(res_x, res_y))
+					bitmap.pix32(res_y, res_x) = pal << 16;
+			}
+	}
+	return 0;
+}
+
 static MACHINE_CONFIG_DERIVED( a64_e90, aleck64 )
 	MCFG_CPU_MODIFY("maincpu")
 	MCFG_CPU_PROGRAM_MAP(e90_map)
+
+	MCFG_SCREEN_MODIFY("screen")
+	MCFG_SCREEN_UPDATE_DRIVER(aleck64_state, screen_update_e90)	
 MACHINE_CONFIG_END
 
 DRIVER_INIT_MEMBER(aleck64_state,aleck64)