diff --git a/src/mame/drivers/cyclemb.c b/src/mame/drivers/cyclemb.c
index d490ff01168..7833aeb5be8 100644
--- a/src/mame/drivers/cyclemb.c
+++ b/src/mame/drivers/cyclemb.c
@@ -71,6 +71,7 @@ Dumped by Chack'n
 #include "driver.h"
 #include "cpu/z80/z80.h"
 #include "sound/ay8910.h"
+#include "machine/tait8741.h"
 
 static UINT8 *cyclemb_vram,*cyclemb_cram;
 static UINT8 *cyclemb_obj1_ram,*cyclemb_obj2_ram,*cyclemb_obj3_ram;
@@ -197,6 +198,7 @@ static WRITE8_HANDLER( sound_cmd_w )
 }
 #endif
 
+#if 0
 static READ8_HANDLER( mcu_status_r )
 {
 	return 1;
@@ -208,6 +210,7 @@ static WRITE8_HANDLER( sound_cmd_w ) //actually ciom
 	soundlatch_w(space, 0, data & 0xff);
  	cputag_set_input_line(space->machine, "audiocpu", 0, HOLD_LINE);
 }
+#endif
 
 static ADDRESS_MAP_START( cyclemb_map, ADDRESS_SPACE_PROGRAM, 8 )
 	AM_RANGE(0x0000, 0x7fff) AM_ROM
@@ -223,8 +226,7 @@ ADDRESS_MAP_END
 static ADDRESS_MAP_START( cyclemb_io, ADDRESS_SPACE_IO, 8 )
 //	ADDRESS_MAP_GLOBAL_MASK(0xff)
 	AM_RANGE(0xc000, 0xc000) AM_WRITE(cyclemb_bankswitch_w)
-	AM_RANGE(0xc09e, 0xc09e) AM_READ(soundlatch2_r)
-	AM_RANGE(0xc09f, 0xc09f) AM_READ(mcu_status_r) AM_WRITE(sound_cmd_w)
+	AM_RANGE(0xc09e, 0xc09f) AM_READWRITE(cyclemb_8741_0_r, cyclemb_8741_0_w)
 	AM_RANGE(0xc0bf, 0xc0bf) AM_WRITENOP //flip screen
 ADDRESS_MAP_END
 
diff --git a/src/mame/machine/tait8741.c b/src/mame/machine/tait8741.c
index 111d47aed1b..7974207048a 100644
--- a/src/mame/machine/tait8741.c
+++ b/src/mame/machine/tait8741.c
@@ -11,7 +11,7 @@ Taito 8741 emulation
 #include "tait8741.h"
 
 #define VERBOSE 0
-#define LOG(x) do { if (VERBOSE) logerror x; } while (0)
+#define LOG(x) do { if (VERBOSE) printf x; } while (0)
 
 /****************************************************************************
 
@@ -533,3 +533,93 @@ WRITE8_HANDLER( josvolly_8741_0_w ){ josvolly_8741_w(space,0,offset,data); }
 READ8_HANDLER( josvolly_8741_0_r ) { return josvolly_8741_r(space,0,offset); }
 WRITE8_HANDLER( josvolly_8741_1_w ) { josvolly_8741_w(space,1,offset,data); }
 READ8_HANDLER( josvolly_8741_1_r ) { return josvolly_8741_r(space,1,offset); }
+
+static void cyclemb_8741_w(const address_space *space, int num, int offset, int data)
+{
+	JV8741 *mcu = &i8741[num];
+
+	if(offset==1)
+	{
+		LOG(("%s:8741[%d] CW %02X\n", cpuexec_describe_context(space->machine), num, data));
+
+		/* read pointer */
+		mcu->cmd = data;
+		/* CMD */
+		switch(data)
+		{
+		case 0:
+			mcu->txd = data ^ 0x40;
+			mcu->sts |= 0x02;
+			break;
+		case 1:
+			mcu->txd = data ^ 0x40;
+			mcu->sts |= 0x02;
+#if 1
+			/* ?? */
+			mcu->rxd = 0;  /* SBSTS ( DIAG ) , killed */
+			mcu->sts |= 0x01; /* RD ready */
+#endif
+			break;
+		case 2:
+#if 1
+			mcu->rxd = input_port_read(space->machine, "DSW2");
+			mcu->sts |= 0x01; /* RD ready */
+#endif
+			break;
+		case 3: /* normal mode ? */
+			break;
+
+		case 0xf0: /* clear main sts ? */
+			mcu->txd = data ^ 0x40;
+			mcu->sts |= 0x02;
+			break;
+		}
+	}
+	else
+	{
+		/* data */
+		LOG(("%s:8741[%d] DW %02X\n", cpuexec_describe_context(space->machine), num, data));
+
+		mcu->txd = data ^ 0x40; /* parity reverce ? */
+		mcu->sts |= 0x02;     /* TXD busy         */
+#if 1
+		/* interrupt ? */
+		if(num == 0)
+		{
+			if(josvolly_nmi_enable)
+			{
+				cputag_set_input_line(space->machine, "audiocpu", INPUT_LINE_NMI, PULSE_LINE);
+				josvolly_nmi_enable = 0;
+			}
+		}
+#endif
+	}
+	josvolly_8741_do(space->machine, num);
+}
+
+static INT8 cyclemb_8741_r(const address_space *space,int num,int offset)
+{
+	JV8741 *mcu = &i8741[num];
+	int ret;
+
+	if(offset==1)
+	{
+		if(mcu->rst)
+			mcu->rxd = input_port_read(space->machine, mcu->initReadPort); /* port in */
+		ret = mcu->sts;
+		LOG(("%s:8741[%d]       SR %02X\n",cpuexec_describe_context(space->machine),num,ret));
+	}
+	else
+	{
+		/* clear status port */
+		mcu->sts &= ~0x01; /* RD ready */
+		ret = mcu->rxd;
+		LOG(("%s:8741[%d]       DR %02X\n",cpuexec_describe_context(space->machine),num,ret));
+		mcu->rst = 0;
+	}
+	return ret;
+}
+
+
+WRITE8_HANDLER( cyclemb_8741_0_w ){ cyclemb_8741_w(space,0,offset,data); }
+READ8_HANDLER( cyclemb_8741_0_r ) { return cyclemb_8741_r(space,0,offset); }
diff --git a/src/mame/machine/tait8741.h b/src/mame/machine/tait8741.h
index 5bc9b49df40..e1d805b7e02 100644
--- a/src/mame/machine/tait8741.h
+++ b/src/mame/machine/tait8741.h
@@ -39,7 +39,7 @@ READ8_HANDLER( TAITO8741_2_r );
 READ8_HANDLER( TAITO8741_3_r );
 
 /****************************************************************************
-  joshi Vollyball set.
+  joshi Volleyball set.
 ****************************************************************************/
 
 extern int josvolly_nmi_enable;
@@ -50,4 +50,15 @@ WRITE8_HANDLER( josvolly_8741_1_w );
 READ8_HANDLER( josvolly_8741_0_r );
 READ8_HANDLER( josvolly_8741_1_r );
 
+/****************************************************************************
+  Cycle Mahbou set.
+****************************************************************************/
+
+WRITE8_HANDLER( cyclemb_8741_0_w );
+//WRITE8_HANDLER( cyclemb_8741_1_w );
+READ8_HANDLER( cyclemb_8741_0_r );
+//READ8_HANDLER( cyclemb_8741_1_r );
+
 #endif
+
+