audio merge (malc)

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1125 c046a42c-6fe2-441c-8c8c-71466251a162

1 files changed, 1390 insertions, 0 deletions

diff --git a/hw/fmopl.c b/hw/fmopl.c
new file mode 100644
index 0000000..2b0e82b
--- /dev/null
+++ b/hw/fmopl.c
@@ -0,0 +1,1390 @@
+/*
+**
+** File: fmopl.c -- software implementation of FM sound generator
+**
+** Copyright (C) 1999,2000 Tatsuyuki Satoh , MultiArcadeMachineEmurator development
+**
+** Version 0.37a
+**
+*/
+
+/*
+	preliminary :
+	Problem :
+	note:
+*/
+
+/* This version of fmopl.c is a fork of the MAME one, relicensed under the LGPL.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#define INLINE		__inline
+#define HAS_YM3812	1
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdarg.h>
+#include <math.h>
+//#include "driver.h"		/* use M.A.M.E. */
+#include "fmopl.h"
+
+#ifndef PI
+#define PI 3.14159265358979323846
+#endif
+
+/* -------------------- for debug --------------------- */
+/* #define OPL_OUTPUT_LOG */
+#ifdef OPL_OUTPUT_LOG
+static FILE *opl_dbg_fp = NULL;
+static FM_OPL *opl_dbg_opl[16];
+static int opl_dbg_maxchip,opl_dbg_chip;
+#endif
+
+/* -------------------- preliminary define section --------------------- */
+/* attack/decay rate time rate */
+#define OPL_ARRATE     141280  /* RATE 4 =  2826.24ms @ 3.6MHz */
+#define OPL_DRRATE    1956000  /* RATE 4 = 39280.64ms @ 3.6MHz */
+
+#define DELTAT_MIXING_LEVEL (1) /* DELTA-T ADPCM MIXING LEVEL */
+
+#define FREQ_BITS 24			/* frequency turn          */
+
+/* counter bits = 20 , octerve 7 */
+#define FREQ_RATE   (1<<(FREQ_BITS-20))
+#define TL_BITS    (FREQ_BITS+2)
+
+/* final output shift , limit minimum and maximum */
+#define OPL_OUTSB   (TL_BITS+3-16)		/* OPL output final shift 16bit */
+#define OPL_MAXOUT (0x7fff<<OPL_OUTSB)
+#define OPL_MINOUT (-0x8000<<OPL_OUTSB)
+
+/* -------------------- quality selection --------------------- */
+
+/* sinwave entries */
+/* used static memory = SIN_ENT * 4 (byte) */
+#define SIN_ENT 2048
+
+/* output level entries (envelope,sinwave) */
+/* envelope counter lower bits */
+#define ENV_BITS 16
+/* envelope output entries */
+#define EG_ENT   4096
+/* used dynamic memory = EG_ENT*4*4(byte)or EG_ENT*6*4(byte) */
+/* used static  memory = EG_ENT*4 (byte)                     */
+
+#define EG_OFF   ((2*EG_ENT)<<ENV_BITS)  /* OFF          */
+#define EG_DED   EG_OFF
+#define EG_DST   (EG_ENT<<ENV_BITS)      /* DECAY  START */
+#define EG_AED   EG_DST
+#define EG_AST   0                       /* ATTACK START */
+
+#define EG_STEP (96.0/EG_ENT) /* OPL is 0.1875 dB step  */
+
+/* LFO table entries */
+#define VIB_ENT 512
+#define VIB_SHIFT (32-9)
+#define AMS_ENT 512
+#define AMS_SHIFT (32-9)
+
+#define VIB_RATE 256
+
+/* -------------------- local defines , macros --------------------- */
+
+/* register number to channel number , slot offset */
+#define SLOT1 0
+#define SLOT2 1
+
+/* envelope phase */
+#define ENV_MOD_RR  0x00
+#define ENV_MOD_DR  0x01
+#define ENV_MOD_AR  0x02
+
+/* -------------------- tables --------------------- */
+static const int slot_array[32]=
+{
+	 0, 2, 4, 1, 3, 5,-1,-1,
+	 6, 8,10, 7, 9,11,-1,-1,
+	12,14,16,13,15,17,-1,-1,
+	-1,-1,-1,-1,-1,-1,-1,-1
+};
+
+/* key scale level */
+/* table is 3dB/OCT , DV converts this in TL step at 6dB/OCT */
+#define DV (EG_STEP/2)
+static const UINT32 KSL_TABLE[8*16]=
+{
+	/* OCT 0 */
+	 0.000/DV, 0.000/DV, 0.000/DV, 0.000/DV,
+	 0.000/DV, 0.000/DV, 0.000/DV, 0.000/DV,
+	 0.000/DV, 0.000/DV, 0.000/DV, 0.000/DV,
+	 0.000/DV, 0.000/DV, 0.000/DV, 0.000/DV,
+	/* OCT 1 */
+	 0.000/DV, 0.000/DV, 0.000/DV, 0.000/DV,
+	 0.000/DV, 0.000/DV, 0.000/DV, 0.000/DV,
+	 0.000/DV, 0.750/DV, 1.125/DV, 1.500/DV,
+	 1.875/DV, 2.250/DV, 2.625/DV, 3.000/DV,
+	/* OCT 2 */
+	 0.000/DV, 0.000/DV, 0.000/DV, 0.000/DV,
+	 0.000/DV, 1.125/DV, 1.875/DV, 2.625/DV,
+	 3.000/DV, 3.750/DV, 4.125/DV, 4.500/DV,
+	 4.875/DV, 5.250/DV, 5.625/DV, 6.000/DV,
+	/* OCT 3 */
+	 0.000/DV, 0.000/DV, 0.000/DV, 1.875/DV,
+	 3.000/DV, 4.125/DV, 4.875/DV, 5.625/DV,
+	 6.000/DV, 6.750/DV, 7.125/DV, 7.500/DV,
+	 7.875/DV, 8.250/DV, 8.625/DV, 9.000/DV,
+	/* OCT 4 */
+	 0.000/DV, 0.000/DV, 3.000/DV, 4.875/DV,
+	 6.000/DV, 7.125/DV, 7.875/DV, 8.625/DV,
+	 9.000/DV, 9.750/DV,10.125/DV,10.500/DV,
+	10.875/DV,11.250/DV,11.625/DV,12.000/DV,
+	/* OCT 5 */
+	 0.000/DV, 3.000/DV, 6.000/DV, 7.875/DV,
+	 9.000/DV,10.125/DV,10.875/DV,11.625/DV,
+	12.000/DV,12.750/DV,13.125/DV,13.500/DV,
+	13.875/DV,14.250/DV,14.625/DV,15.000/DV,
+	/* OCT 6 */
+	 0.000/DV, 6.000/DV, 9.000/DV,10.875/DV,
+	12.000/DV,13.125/DV,13.875/DV,14.625/DV,
+	15.000/DV,15.750/DV,16.125/DV,16.500/DV,
+	16.875/DV,17.250/DV,17.625/DV,18.000/DV,
+	/* OCT 7 */
+	 0.000/DV, 9.000/DV,12.000/DV,13.875/DV,
+	15.000/DV,16.125/DV,16.875/DV,17.625/DV,
+	18.000/DV,18.750/DV,19.125/DV,19.500/DV,
+	19.875/DV,20.250/DV,20.625/DV,21.000/DV
+};
+#undef DV
+
+/* sustain lebel table (3db per step) */
+/* 0 - 15: 0, 3, 6, 9,12,15,18,21,24,27,30,33,36,39,42,93 (dB)*/
+#define SC(db) (db*((3/EG_STEP)*(1<<ENV_BITS)))+EG_DST
+static const INT32 SL_TABLE[16]={
+ SC( 0),SC( 1),SC( 2),SC(3 ),SC(4 ),SC(5 ),SC(6 ),SC( 7),
+ SC( 8),SC( 9),SC(10),SC(11),SC(12),SC(13),SC(14),SC(31)
+};
+#undef SC
+
+#define TL_MAX (EG_ENT*2) /* limit(tl + ksr + envelope) + sinwave */
+/* TotalLevel : 48 24 12  6  3 1.5 0.75 (dB) */
+/* TL_TABLE[ 0      to TL_MAX          ] : plus  section */
+/* TL_TABLE[ TL_MAX to TL_MAX+TL_MAX-1 ] : minus section */
+static INT32 *TL_TABLE;
+
+/* pointers to TL_TABLE with sinwave output offset */
+static INT32 **SIN_TABLE;
+
+/* LFO table */
+static INT32 *AMS_TABLE;
+static INT32 *VIB_TABLE;
+
+/* envelope output curve table */
+/* attack + decay + OFF */
+static INT32 ENV_CURVE[2*EG_ENT+1];
+
+/* multiple table */
+#define ML 2
+static const UINT32 MUL_TABLE[16]= {
+/* 1/2, 1, 2, 3, 4, 5, 6, 7, 8, 9,10,11,12,13,14,15 */
+   0.50*ML, 1.00*ML, 2.00*ML, 3.00*ML, 4.00*ML, 5.00*ML, 6.00*ML, 7.00*ML,
+   8.00*ML, 9.00*ML,10.00*ML,10.00*ML,12.00*ML,12.00*ML,15.00*ML,15.00*ML
+};
+#undef ML
+
+/* dummy attack / decay rate ( when rate == 0 ) */
+static INT32 RATE_0[16]=
+{0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
+
+/* -------------------- static state --------------------- */
+
+/* lock level of common table */
+static int num_lock = 0;
+
+/* work table */
+static void *cur_chip = NULL;	/* current chip point */
+/* currenct chip state */
+/* static OPLSAMPLE  *bufL,*bufR; */
+static OPL_CH *S_CH;
+static OPL_CH *E_CH;
+OPL_SLOT *SLOT7_1,*SLOT7_2,*SLOT8_1,*SLOT8_2;
+
+static INT32 outd[1];
+static INT32 ams;
+static INT32 vib;
+INT32  *ams_table;
+INT32  *vib_table;
+static INT32 amsIncr;
+static INT32 vibIncr;
+static INT32 feedback2;		/* connect for SLOT 2 */
+
+/* log output level */
+#define LOG_ERR  3      /* ERROR       */
+#define LOG_WAR  2      /* WARNING     */
+#define LOG_INF  1      /* INFORMATION */
+
+//#define LOG_LEVEL LOG_INF
+#define LOG_LEVEL	LOG_ERR
+
+//#define LOG(n,x) if( (n)>=LOG_LEVEL ) logerror x
+#define LOG(n,x)
+
+/* --------------------- subroutines  --------------------- */
+
+INLINE int Limit( int val, int max, int min ) {
+	if ( val > max )
+		val = max;
+	else if ( val < min )
+		val = min;
+
+	return val;
+}
+
+/* status set and IRQ handling */
+INLINE void OPL_STATUS_SET(FM_OPL *OPL,int flag)
+{
+	/* set status flag */
+	OPL->status |= flag;
+	if(!(OPL->status & 0x80))
+	{
+		if(OPL->status & OPL->statusmask)
+		{	/* IRQ on */
+			OPL->status |= 0x80;
+			/* callback user interrupt handler (IRQ is OFF to ON) */
+			if(OPL->IRQHandler) (OPL->IRQHandler)(OPL->IRQParam,1);
+		}
+	}
+}
+
+/* status reset and IRQ handling */
+INLINE void OPL_STATUS_RESET(FM_OPL *OPL,int flag)
+{
+	/* reset status flag */
+	OPL->status &=~flag;
+	if((OPL->status & 0x80))
+	{
+		if (!(OPL->status & OPL->statusmask) )
+		{
+			OPL->status &= 0x7f;
+			/* callback user interrupt handler (IRQ is ON to OFF) */
+			if(OPL->IRQHandler) (OPL->IRQHandler)(OPL->IRQParam,0);
+		}
+	}
+}
+
+/* IRQ mask set */
+INLINE void OPL_STATUSMASK_SET(FM_OPL *OPL,int flag)
+{
+	OPL->statusmask = flag;
+	/* IRQ handling check */
+	OPL_STATUS_SET(OPL,0);
+	OPL_STATUS_RESET(OPL,0);
+}
+
+/* ----- key on  ----- */
+INLINE void OPL_KEYON(OPL_SLOT *SLOT)
+{
+	/* sin wave restart */
+	SLOT->Cnt = 0;
+	/* set attack */
+	SLOT->evm = ENV_MOD_AR;
+	SLOT->evs = SLOT->evsa;
+	SLOT->evc = EG_AST;
+	SLOT->eve = EG_AED;
+}
+/* ----- key off ----- */
+INLINE void OPL_KEYOFF(OPL_SLOT *SLOT)
+{
+	if( SLOT->evm > ENV_MOD_RR)
+	{
+		/* set envelope counter from envleope output */
+		SLOT->evm = ENV_MOD_RR;
+		if( !(SLOT->evc&EG_DST) )
+			//SLOT->evc = (ENV_CURVE[SLOT->evc>>ENV_BITS]<<ENV_BITS) + EG_DST;
+			SLOT->evc = EG_DST;
+		SLOT->eve = EG_DED;
+		SLOT->evs = SLOT->evsr;
+	}
+}
+
+/* ---------- calcrate Envelope Generator & Phase Generator ---------- */
+/* return : envelope output */
+INLINE UINT32 OPL_CALC_SLOT( OPL_SLOT *SLOT )
+{
+	/* calcrate envelope generator */
+	if( (SLOT->evc+=SLOT->evs) >= SLOT->eve )
+	{
+		switch( SLOT->evm ){
+		case ENV_MOD_AR: /* ATTACK -> DECAY1 */
+			/* next DR */
+			SLOT->evm = ENV_MOD_DR;
+			SLOT->evc = EG_DST;
+			SLOT->eve = SLOT->SL;
+			SLOT->evs = SLOT->evsd;
+			break;
+		case ENV_MOD_DR: /* DECAY -> SL or RR */
+			SLOT->evc = SLOT->SL;
+			SLOT->eve = EG_DED;
+			if(SLOT->eg_typ)
+			{
+				SLOT->evs = 0;
+			}
+			else
+			{
+				SLOT->evm = ENV_MOD_RR;
+				SLOT->evs = SLOT->evsr;
+			}
+			break;
+		case ENV_MOD_RR: /* RR -> OFF */
+			SLOT->evc = EG_OFF;
+			SLOT->eve = EG_OFF+1;
+			SLOT->evs = 0;
+			break;
+		}
+	}
+	/* calcrate envelope */
+	return SLOT->TLL+ENV_CURVE[SLOT->evc>>ENV_BITS]+(SLOT->ams ? ams : 0);
+}
+
+/* set algorythm connection */
+static void set_algorythm( OPL_CH *CH)
+{
+	INT32 *carrier = &outd[0];
+	CH->connect1 = CH->CON ? carrier : &feedback2;
+	CH->connect2 = carrier;
+}
+
+/* ---------- frequency counter for operater update ---------- */
+INLINE void CALC_FCSLOT(OPL_CH *CH,OPL_SLOT *SLOT)
+{
+	int ksr;
+
+	/* frequency step counter */
+	SLOT->Incr = CH->fc * SLOT->mul;
+	ksr = CH->kcode >> SLOT->KSR;
+
+	if( SLOT->ksr != ksr )
+	{
+		SLOT->ksr = ksr;
+		/* attack , decay rate recalcration */
+		SLOT->evsa = SLOT->AR[ksr];
+		SLOT->evsd = SLOT->DR[ksr];
+		SLOT->evsr = SLOT->RR[ksr];
+	}
+	SLOT->TLL = SLOT->TL + (CH->ksl_base>>SLOT->ksl);
+}
+
+/* set multi,am,vib,EG-TYP,KSR,mul */
+INLINE void set_mul(FM_OPL *OPL,int slot,int v)
+{
+	OPL_CH   *CH   = &OPL->P_CH[slot/2];
+	OPL_SLOT *SLOT = &CH->SLOT[slot&1];
+
+	SLOT->mul    = MUL_TABLE[v&0x0f];
+	SLOT->KSR    = (v&0x10) ? 0 : 2;
+	SLOT->eg_typ = (v&0x20)>>5;
+	SLOT->vib    = (v&0x40);
+	SLOT->ams    = (v&0x80);
+	CALC_FCSLOT(CH,SLOT);
+}
+
+/* set ksl & tl */
+INLINE void set_ksl_tl(FM_OPL *OPL,int slot,int v)
+{
+	OPL_CH   *CH   = &OPL->P_CH[slot/2];
+	OPL_SLOT *SLOT = &CH->SLOT[slot&1];
+	int ksl = v>>6; /* 0 / 1.5 / 3 / 6 db/OCT */
+
+	SLOT->ksl = ksl ? 3-ksl : 31;
+	SLOT->TL  = (v&0x3f)*(0.75/EG_STEP); /* 0.75db step */
+
+	if( !(OPL->mode&0x80) )
+	{	/* not CSM latch total level */
+		SLOT->TLL = SLOT->TL + (CH->ksl_base>>SLOT->ksl);
+	}
+}
+
+/* set attack rate & decay rate  */
+INLINE void set_ar_dr(FM_OPL *OPL,int slot,int v)
+{
+	OPL_CH   *CH   = &OPL->P_CH[slot/2];
+	OPL_SLOT *SLOT = &CH->SLOT[slot&1];
+	int ar = v>>4;
+	int dr = v&0x0f;
+
+	SLOT->AR = ar ? &OPL->AR_TABLE[ar<<2] : RATE_0;
+	SLOT->evsa = SLOT->AR[SLOT->ksr];
+	if( SLOT->evm == ENV_MOD_AR ) SLOT->evs = SLOT->evsa;
+
+	SLOT->DR = dr ? &OPL->DR_TABLE[dr<<2] : RATE_0;
+	SLOT->evsd = SLOT->DR[SLOT->ksr];
+	if( SLOT->evm == ENV_MOD_DR ) SLOT->evs = SLOT->evsd;
+}
+
+/* set sustain level & release rate */
+INLINE void set_sl_rr(FM_OPL *OPL,int slot,int v)
+{
+	OPL_CH   *CH   = &OPL->P_CH[slot/2];
+	OPL_SLOT *SLOT = &CH->SLOT[slot&1];
+	int sl = v>>4;
+	int rr = v & 0x0f;
+
+	SLOT->SL = SL_TABLE[sl];
+	if( SLOT->evm == ENV_MOD_DR ) SLOT->eve = SLOT->SL;
+	SLOT->RR = &OPL->DR_TABLE[rr<<2];
+	SLOT->evsr = SLOT->RR[SLOT->ksr];
+	if( SLOT->evm == ENV_MOD_RR ) SLOT->evs = SLOT->evsr;
+}
+
+/* operator output calcrator */
+#define OP_OUT(slot,env,con)   slot->wavetable[((slot->Cnt+con)/(0x1000000/SIN_ENT))&(SIN_ENT-1)][env]
+/* ---------- calcrate one of channel ---------- */
+INLINE void OPL_CALC_CH( OPL_CH *CH )
+{
+	UINT32 env_out;
+	OPL_SLOT *SLOT;
+
+	feedback2 = 0;
+	/* SLOT 1 */
+	SLOT = &CH->SLOT[SLOT1];
+	env_out=OPL_CALC_SLOT(SLOT);
+	if( env_out < EG_ENT-1 )
+	{
+		/* PG */
+		if(SLOT->vib) SLOT->Cnt += (SLOT->Incr*vib/VIB_RATE);
+		else          SLOT->Cnt += SLOT->Incr;
+		/* connectoion */
+		if(CH->FB)
+		{
+			int feedback1 = (CH->op1_out[0]+CH->op1_out[1])>>CH->FB;
+			CH->op1_out[1] = CH->op1_out[0];
+			*CH->connect1 += CH->op1_out[0] = OP_OUT(SLOT,env_out,feedback1);
+		}
+		else
+		{
+			*CH->connect1 += OP_OUT(SLOT,env_out,0);
+		}
+	}else
+	{
+		CH->op1_out[1] = CH->op1_out[0];
+		CH->op1_out[0] = 0;
+	}
+	/* SLOT 2 */
+	SLOT = &CH->SLOT[SLOT2];
+	env_out=OPL_CALC_SLOT(SLOT);
+	if( env_out < EG_ENT-1 )
+	{
+		/* PG */
+		if(SLOT->vib) SLOT->Cnt += (SLOT->Incr*vib/VIB_RATE);
+		else          SLOT->Cnt += SLOT->Incr;
+		/* connectoion */
+		outd[0] += OP_OUT(SLOT,env_out, feedback2);
+	}
+}
+
+/* ---------- calcrate rythm block ---------- */
+#define WHITE_NOISE_db 6.0
+INLINE void OPL_CALC_RH( OPL_CH *CH )
+{
+	UINT32 env_tam,env_sd,env_top,env_hh;
+	int whitenoise = (rand()&1)*(WHITE_NOISE_db/EG_STEP);
+	INT32 tone8;
+
+	OPL_SLOT *SLOT;
+	int env_out;
+
+	/* BD : same as FM serial mode and output level is large */
+	feedback2 = 0;
+	/* SLOT 1 */
+	SLOT = &CH[6].SLOT[SLOT1];
+	env_out=OPL_CALC_SLOT(SLOT);
+	if( env_out < EG_ENT-1 )
+	{
+		/* PG */
+		if(SLOT->vib) SLOT->Cnt += (SLOT->Incr*vib/VIB_RATE);
+		else          SLOT->Cnt += SLOT->Incr;
+		/* connectoion */
+		if(CH[6].FB)
+		{
+			int feedback1 = (CH[6].op1_out[0]+CH[6].op1_out[1])>>CH[6].FB;
+			CH[6].op1_out[1] = CH[6].op1_out[0];
+			feedback2 = CH[6].op1_out[0] = OP_OUT(SLOT,env_out,feedback1);
+		}
+		else
+		{
+			feedback2 = OP_OUT(SLOT,env_out,0);
+		}
+	}else
+	{
+		feedback2 = 0;
+		CH[6].op1_out[1] = CH[6].op1_out[0];
+		CH[6].op1_out[0] = 0;
+	}
+	/* SLOT 2 */
+	SLOT = &CH[6].SLOT[SLOT2];
+	env_out=OPL_CALC_SLOT(SLOT);
+	if( env_out < EG_ENT-1 )
+	{
+		/* PG */
+		if(SLOT->vib) SLOT->Cnt += (SLOT->Incr*vib/VIB_RATE);
+		else          SLOT->Cnt += SLOT->Incr;
+		/* connectoion */
+		outd[0] += OP_OUT(SLOT,env_out, feedback2)*2;
+	}
+
+	// SD  (17) = mul14[fnum7] + white noise
+	// TAM (15) = mul15[fnum8]
+	// TOP (18) = fnum6(mul18[fnum8]+whitenoise)
+	// HH  (14) = fnum7(mul18[fnum8]+whitenoise) + white noise
+	env_sd =OPL_CALC_SLOT(SLOT7_2) + whitenoise;
+	env_tam=OPL_CALC_SLOT(SLOT8_1);
+	env_top=OPL_CALC_SLOT(SLOT8_2);
+	env_hh =OPL_CALC_SLOT(SLOT7_1) + whitenoise;
+
+	/* PG */
+	if(SLOT7_1->vib) SLOT7_1->Cnt += (2*SLOT7_1->Incr*vib/VIB_RATE);
+	else             SLOT7_1->Cnt += 2*SLOT7_1->Incr;
+	if(SLOT7_2->vib) SLOT7_2->Cnt += ((CH[7].fc*8)*vib/VIB_RATE);
+	else             SLOT7_2->Cnt += (CH[7].fc*8);
+	if(SLOT8_1->vib) SLOT8_1->Cnt += (SLOT8_1->Incr*vib/VIB_RATE);
+	else             SLOT8_1->Cnt += SLOT8_1->Incr;
+	if(SLOT8_2->vib) SLOT8_2->Cnt += ((CH[8].fc*48)*vib/VIB_RATE);
+	else             SLOT8_2->Cnt += (CH[8].fc*48);
+
+	tone8 = OP_OUT(SLOT8_2,whitenoise,0 );
+
+	/* SD */
+	if( env_sd < EG_ENT-1 )
+		outd[0] += OP_OUT(SLOT7_1,env_sd, 0)*8;
+	/* TAM */
+	if( env_tam < EG_ENT-1 )
+		outd[0] += OP_OUT(SLOT8_1,env_tam, 0)*2;
+	/* TOP-CY */
+	if( env_top < EG_ENT-1 )
+		outd[0] += OP_OUT(SLOT7_2,env_top,tone8)*2;
+	/* HH */
+	if( env_hh  < EG_ENT-1 )
+		outd[0] += OP_OUT(SLOT7_2,env_hh,tone8)*2;
+}
+
+/* ----------- initialize time tabls ----------- */
+static void init_timetables( FM_OPL *OPL , int ARRATE , int DRRATE )
+{
+	int i;
+	double rate;
+
+	/* make attack rate & decay rate tables */
+	for (i = 0;i < 4;i++) OPL->AR_TABLE[i] = OPL->DR_TABLE[i] = 0;
+	for (i = 4;i <= 60;i++){
+		rate  = OPL->freqbase;						/* frequency rate */
+		if( i < 60 ) rate *= 1.0+(i&3)*0.25;		/* b0-1 : x1 , x1.25 , x1.5 , x1.75 */
+		rate *= 1<<((i>>2)-1);						/* b2-5 : shift bit */
+		rate *= (double)(EG_ENT<<ENV_BITS);
+		OPL->AR_TABLE[i] = rate / ARRATE;
+		OPL->DR_TABLE[i] = rate / DRRATE;
+	}
+	for (i = 60;i < 76;i++)
+	{
+		OPL->AR_TABLE[i] = EG_AED-1;
+		OPL->DR_TABLE[i] = OPL->DR_TABLE[60];
+	}
+#if 0
+	for (i = 0;i < 64 ;i++){	/* make for overflow area */
+		LOG(LOG_WAR,("rate %2d , ar %f ms , dr %f ms \n",i,
+			((double)(EG_ENT<<ENV_BITS) / OPL->AR_TABLE[i]) * (1000.0 / OPL->rate),
+			((double)(EG_ENT<<ENV_BITS) / OPL->DR_TABLE[i]) * (1000.0 / OPL->rate) ));
+	}
+#endif
+}
+
+/* ---------- generic table initialize ---------- */
+static int OPLOpenTable( void )
+{
+	int s,t;
+	double rate;
+	int i,j;
+	double pom;
+
+	/* allocate dynamic tables */
+	if( (TL_TABLE = malloc(TL_MAX*2*sizeof(INT32))) == NULL)
+		return 0;
+	if( (SIN_TABLE = malloc(SIN_ENT*4 *sizeof(INT32 *))) == NULL)
+	{
+		free(TL_TABLE);
+		return 0;
+	}
+	if( (AMS_TABLE = malloc(AMS_ENT*2 *sizeof(INT32))) == NULL)
+	{
+		free(TL_TABLE);
+		free(SIN_TABLE);
+		return 0;
+	}
+	if( (VIB_TABLE = malloc(VIB_ENT*2 *sizeof(INT32))) == NULL)
+	{
+		free(TL_TABLE);
+		free(SIN_TABLE);
+		free(AMS_TABLE);
+		return 0;
+	}
+	/* make total level table */
+	for (t = 0;t < EG_ENT-1 ;t++){
+		rate = ((1<<TL_BITS)-1)/pow(10,EG_STEP*t/20);	/* dB -> voltage */
+		TL_TABLE[       t] =  (int)rate;
+		TL_TABLE[TL_MAX+t] = -TL_TABLE[t];
+/*		LOG(LOG_INF,("TotalLevel(%3d) = %x\n",t,TL_TABLE[t]));*/
+	}
+	/* fill volume off area */
+	for ( t = EG_ENT-1; t < TL_MAX ;t++){
+		TL_TABLE[t] = TL_TABLE[TL_MAX+t] = 0;
+	}
+
+	/* make sinwave table (total level offet) */
+	/* degree 0 = degree 180                   = off */
+	SIN_TABLE[0] = SIN_TABLE[SIN_ENT/2]         = &TL_TABLE[EG_ENT-1];
+	for (s = 1;s <= SIN_ENT/4;s++){
+		pom = sin(2*PI*s/SIN_ENT); /* sin     */
+		pom = 20*log10(1/pom);	   /* decibel */
+		j = pom / EG_STEP;         /* TL_TABLE steps */
+
+        /* degree 0   -  90    , degree 180 -  90 : plus section */
+		SIN_TABLE[          s] = SIN_TABLE[SIN_ENT/2-s] = &TL_TABLE[j];
+        /* degree 180 - 270    , degree 360 - 270 : minus section */
+		SIN_TABLE[SIN_ENT/2+s] = SIN_TABLE[SIN_ENT  -s] = &TL_TABLE[TL_MAX+j];
+/*		LOG(LOG_INF,("sin(%3d) = %f:%f db\n",s,pom,(double)j * EG_STEP));*/
+	}
+	for (s = 0;s < SIN_ENT;s++)
+	{
+		SIN_TABLE[SIN_ENT*1+s] = s<(SIN_ENT/2) ? SIN_TABLE[s] : &TL_TABLE[EG_ENT];
+		SIN_TABLE[SIN_ENT*2+s] = SIN_TABLE[s % (SIN_ENT/2)];
+		SIN_TABLE[SIN_ENT*3+s] = (s/(SIN_ENT/4))&1 ? &TL_TABLE[EG_ENT] : SIN_TABLE[SIN_ENT*2+s];
+	}
+
+	/* envelope counter -> envelope output table */
+	for (i=0; i<EG_ENT; i++)
+	{
+		/* ATTACK curve */
+		pom = pow( ((double)(EG_ENT-1-i)/EG_ENT) , 8 ) * EG_ENT;
+		/* if( pom >= EG_ENT ) pom = EG_ENT-1; */
+		ENV_CURVE[i] = (int)pom;
+		/* DECAY ,RELEASE curve */
+		ENV_CURVE[(EG_DST>>ENV_BITS)+i]= i;
+	}
+	/* off */
+	ENV_CURVE[EG_OFF>>ENV_BITS]= EG_ENT-1;
+	/* make LFO ams table */
+	for (i=0; i<AMS_ENT; i++)
+	{
+		pom = (1.0+sin(2*PI*i/AMS_ENT))/2; /* sin */
+		AMS_TABLE[i]         = (1.0/EG_STEP)*pom; /* 1dB   */
+		AMS_TABLE[AMS_ENT+i] = (4.8/EG_STEP)*pom; /* 4.8dB */
+	}
+	/* make LFO vibrate table */
+	for (i=0; i<VIB_ENT; i++)
+	{
+		/* 100cent = 1seminote = 6% ?? */
+		pom = (double)VIB_RATE*0.06*sin(2*PI*i/VIB_ENT); /* +-100sect step */
+		VIB_TABLE[i]         = VIB_RATE + (pom*0.07); /* +- 7cent */
+		VIB_TABLE[VIB_ENT+i] = VIB_RATE + (pom*0.14); /* +-14cent */
+		/* LOG(LOG_INF,("vib %d=%d\n",i,VIB_TABLE[VIB_ENT+i])); */
+	}
+	return 1;
+}
+
+
+static void OPLCloseTable( void )
+{
+	free(TL_TABLE);
+	free(SIN_TABLE);
+	free(AMS_TABLE);
+	free(VIB_TABLE);
+}
+
+/* CSM Key Controll */
+INLINE void CSMKeyControll(OPL_CH *CH)
+{
+	OPL_SLOT *slot1 = &CH->SLOT[SLOT1];
+	OPL_SLOT *slot2 = &CH->SLOT[SLOT2];
+	/* all key off */
+	OPL_KEYOFF(slot1);
+	OPL_KEYOFF(slot2);
+	/* total level latch */
+	slot1->TLL = slot1->TL + (CH->ksl_base>>slot1->ksl);
+	slot1->TLL = slot1->TL + (CH->ksl_base>>slot1->ksl);
+	/* key on */
+	CH->op1_out[0] = CH->op1_out[1] = 0;
+	OPL_KEYON(slot1);
+	OPL_KEYON(slot2);
+}
+
+/* ---------- opl initialize ---------- */
+static void OPL_initalize(FM_OPL *OPL)
+{
+	int fn;
+
+	/* frequency base */
+	OPL->freqbase = (OPL->rate) ? ((double)OPL->clock / OPL->rate) / 72  : 0;
+	/* Timer base time */
+	OPL->TimerBase = 1.0/((double)OPL->clock / 72.0 );
+	/* make time tables */
+	init_timetables( OPL , OPL_ARRATE , OPL_DRRATE );
+	/* make fnumber -> increment counter table */
+	for( fn=0 ; fn < 1024 ; fn++ )
+	{
+		OPL->FN_TABLE[fn] = OPL->freqbase * fn * FREQ_RATE * (1<<7) / 2;
+	}
+	/* LFO freq.table */
+	OPL->amsIncr = OPL->rate ? (double)AMS_ENT*(1<<AMS_SHIFT) / OPL->rate * 3.7 * ((double)OPL->clock/3600000) : 0;
+	OPL->vibIncr = OPL->rate ? (double)VIB_ENT*(1<<VIB_SHIFT) / OPL->rate * 6.4 * ((double)OPL->clock/3600000) : 0;
+}
+
+/* ---------- write a OPL registers ---------- */
+static void OPLWriteReg(FM_OPL *OPL, int r, int v)
+{
+	OPL_CH *CH;
+	int slot;
+	int block_fnum;
+
+	switch(r&0xe0)
+	{
+	case 0x00: /* 00-1f:controll */
+		switch(r&0x1f)
+		{
+		case 0x01:
+			/* wave selector enable */
+			if(OPL->type&OPL_TYPE_WAVESEL)
+			{
+				OPL->wavesel = v&0x20;
+				if(!OPL->wavesel)
+				{
+					/* preset compatible mode */
+					int c;
+					for(c=0;c<OPL->max_ch;c++)
+					{
+						OPL->P_CH[c].SLOT[SLOT1].wavetable = &SIN_TABLE[0];
+						OPL->P_CH[c].SLOT[SLOT2].wavetable = &SIN_TABLE[0];
+					}
+				}
+			}
+			return;
+		case 0x02:	/* Timer 1 */
+			OPL->T[0] = (256-v)*4;
+			break;
+		case 0x03:	/* Timer 2 */
+			OPL->T[1] = (256-v)*16;
+			return;
+		case 0x04:	/* IRQ clear / mask and Timer enable */
+			if(v&0x80)
+			{	/* IRQ flag clear */
+				OPL_STATUS_RESET(OPL,0x7f);
+			}
+			else
+			{	/* set IRQ mask ,timer enable*/
+				UINT8 st1 = v&1;
+				UINT8 st2 = (v>>1)&1;
+				/* IRQRST,T1MSK,t2MSK,EOSMSK,BRMSK,x,ST2,ST1 */
+				OPL_STATUS_RESET(OPL,v&0x78);
+				OPL_STATUSMASK_SET(OPL,((~v)&0x78)|0x01);
+				/* timer 2 */
+				if(OPL->st[1] != st2)
+				{
+					double interval = st2 ? (double)OPL->T[1]*OPL->TimerBase : 0.0;
+					OPL->st[1] = st2;
+					if (OPL->TimerHandler) (OPL->TimerHandler)(OPL->TimerParam+1,interval);
+				}
+				/* timer 1 */
+				if(OPL->st[0] != st1)
+				{
+					double interval = st1 ? (double)OPL->T[0]*OPL->TimerBase : 0.0;
+					OPL->st[0] = st1;
+					if (OPL->TimerHandler) (OPL->TimerHandler)(OPL->TimerParam+0,interval);
+				}
+			}
+			return;
+#if BUILD_Y8950
+		case 0x06:		/* Key Board OUT */
+			if(OPL->type&OPL_TYPE_KEYBOARD)
+			{
+				if(OPL->keyboardhandler_w)
+					OPL->keyboardhandler_w(OPL->keyboard_param,v);
+				else
+					LOG(LOG_WAR,("OPL:write unmapped KEYBOARD port\n"));
+			}
+			return;
+		case 0x07:	/* DELTA-T controll : START,REC,MEMDATA,REPT,SPOFF,x,x,RST */
+			if(OPL->type&OPL_TYPE_ADPCM)
+				YM_DELTAT_ADPCM_Write(OPL->deltat,r-0x07,v);
+			return;
+		case 0x08:	/* MODE,DELTA-T : CSM,NOTESEL,x,x,smpl,da/ad,64k,rom */
+			OPL->mode = v;
+			v&=0x1f;	/* for DELTA-T unit */
+		case 0x09:		/* START ADD */
+		case 0x0a:
+		case 0x0b:		/* STOP ADD  */
+		case 0x0c:
+		case 0x0d:		/* PRESCALE   */
+		case 0x0e:
+		case 0x0f:		/* ADPCM data */
+		case 0x10: 		/* DELTA-N    */
+		case 0x11: 		/* DELTA-N    */
+		case 0x12: 		/* EG-CTRL    */
+			if(OPL->type&OPL_TYPE_ADPCM)
+				YM_DELTAT_ADPCM_Write(OPL->deltat,r-0x07,v);
+			return;
+#if 0
+		case 0x15:		/* DAC data    */
+		case 0x16:
+		case 0x17:		/* SHIFT    */
+			return;
+		case 0x18:		/* I/O CTRL (Direction) */
+			if(OPL->type&OPL_TYPE_IO)
+				OPL->portDirection = v&0x0f;
+			return;
+		case 0x19:		/* I/O DATA */
+			if(OPL->type&OPL_TYPE_IO)
+			{
+				OPL->portLatch = v;
+				if(OPL->porthandler_w)
+					OPL->porthandler_w(OPL->port_param,v&OPL->portDirection);
+			}
+			return;
+		case 0x1a:		/* PCM data */
+			return;
+#endif
+#endif
+		}
+		break;
+	case 0x20:	/* am,vib,ksr,eg type,mul */
+		slot = slot_array[r&0x1f];
+		if(slot == -1) return;
+		set_mul(OPL,slot,v);
+		return;
+	case 0x40:
+		slot = slot_array[r&0x1f];
+		if(slot == -1) return;
+		set_ksl_tl(OPL,slot,v);
+		return;
+	case 0x60:
+		slot = slot_array[r&0x1f];
+		if(slot == -1) return;
+		set_ar_dr(OPL,slot,v);
+		return;
+	case 0x80:
+		slot = slot_array[r&0x1f];
+		if(slot == -1) return;
+		set_sl_rr(OPL,slot,v);
+		return;
+	case 0xa0:
+		switch(r)
+		{
+		case 0xbd:
+			/* amsep,vibdep,r,bd,sd,tom,tc,hh */
+			{
+			UINT8 rkey = OPL->rythm^v;
+			OPL->ams_table = &AMS_TABLE[v&0x80 ? AMS_ENT : 0];
+			OPL->vib_table = &VIB_TABLE[v&0x40 ? VIB_ENT : 0];
+			OPL->rythm  = v&0x3f;
+			if(OPL->rythm&0x20)
+			{
+#if 0
+				usrintf_showmessage("OPL Rythm mode select");
+#endif
+				/* BD key on/off */
+				if(rkey&0x10)
+				{
+					if(v&0x10)
+					{
+						OPL->P_CH[6].op1_out[0] = OPL->P_CH[6].op1_out[1] = 0;
+						OPL_KEYON(&OPL->P_CH[6].SLOT[SLOT1]);
+						OPL_KEYON(&OPL->P_CH[6].SLOT[SLOT2]);
+					}
+					else
+					{
+						OPL_KEYOFF(&OPL->P_CH[6].SLOT[SLOT1]);
+						OPL_KEYOFF(&OPL->P_CH[6].SLOT[SLOT2]);
+					}
+				}
+				/* SD key on/off */
+				if(rkey&0x08)
+				{
+					if(v&0x08) OPL_KEYON(&OPL->P_CH[7].SLOT[SLOT2]);
+					else       OPL_KEYOFF(&OPL->P_CH[7].SLOT[SLOT2]);
+				}/* TAM key on/off */
+				if(rkey&0x04)
+				{
+					if(v&0x04) OPL_KEYON(&OPL->P_CH[8].SLOT[SLOT1]);
+					else       OPL_KEYOFF(&OPL->P_CH[8].SLOT[SLOT1]);
+				}
+				/* TOP-CY key on/off */
+				if(rkey&0x02)
+				{
+					if(v&0x02) OPL_KEYON(&OPL->P_CH[8].SLOT[SLOT2]);
+					else       OPL_KEYOFF(&OPL->P_CH[8].SLOT[SLOT2]);
+				}
+				/* HH key on/off */
+				if(rkey&0x01)
+				{
+					if(v&0x01) OPL_KEYON(&OPL->P_CH[7].SLOT[SLOT1]);
+					else       OPL_KEYOFF(&OPL->P_CH[7].SLOT[SLOT1]);
+				}
+			}
+			}
+			return;
+		}
+		/* keyon,block,fnum */
+		if( (r&0x0f) > 8) return;
+		CH = &OPL->P_CH[r&0x0f];
+		if(!(r&0x10))
+		{	/* a0-a8 */
+			block_fnum  = (CH->block_fnum&0x1f00) | v;
+		}
+		else
+		{	/* b0-b8 */
+			int keyon = (v>>5)&1;
+			block_fnum = ((v&0x1f)<<8) | (CH->block_fnum&0xff);
+			if(CH->keyon != keyon)
+			{
+				if( (CH->keyon=keyon) )
+				{
+					CH->op1_out[0] = CH->op1_out[1] = 0;
+					OPL_KEYON(&CH->SLOT[SLOT1]);
+					OPL_KEYON(&CH->SLOT[SLOT2]);
+				}
+				else
+				{
+					OPL_KEYOFF(&CH->SLOT[SLOT1]);
+					OPL_KEYOFF(&CH->SLOT[SLOT2]);
+				}
+			}
+		}
+		/* update */
+		if(CH->block_fnum != block_fnum)
+		{
+			int blockRv = 7-(block_fnum>>10);
+			int fnum   = block_fnum&0x3ff;
+			CH->block_fnum = block_fnum;
+
+			CH->ksl_base = KSL_TABLE[block_fnum>>6];
+			CH->fc = OPL->FN_TABLE[fnum]>>blockRv;
+			CH->kcode = CH->block_fnum>>9;
+			if( (OPL->mode&0x40) && CH->block_fnum&0x100) CH->kcode |=1;
+			CALC_FCSLOT(CH,&CH->SLOT[SLOT1]);
+			CALC_FCSLOT(CH,&CH->SLOT[SLOT2]);
+		}
+		return;
+	case 0xc0:
+		/* FB,C */
+		if( (r&0x0f) > 8) return;
+		CH = &OPL->P_CH[r&0x0f];
+		{
+		int feedback = (v>>1)&7;
+		CH->FB   = feedback ? (8+1) - feedback : 0;
+		CH->CON = v&1;
+		set_algorythm(CH);
+		}
+		return;
+	case 0xe0: /* wave type */
+		slot = slot_array[r&0x1f];
+		if(slot == -1) return;
+		CH = &OPL->P_CH[slot/2];
+		if(OPL->wavesel)
+		{
+			/* LOG(LOG_INF,("OPL SLOT %d wave select %d\n",slot,v&3)); */
+			CH->SLOT[slot&1].wavetable = &SIN_TABLE[(v&0x03)*SIN_ENT];
+		}
+		return;
+	}
+}
+
+/* lock/unlock for common table */
+static int OPL_LockTable(void)
+{
+	num_lock++;
+	if(num_lock>1) return 0;
+	/* first time */
+	cur_chip = NULL;
+	/* allocate total level table (128kb space) */
+	if( !OPLOpenTable() )
+	{
+		num_lock--;
+		return -1;
+	}
+	return 0;
+}
+
+static void OPL_UnLockTable(void)
+{
+	if(num_lock) num_lock--;
+	if(num_lock) return;
+	/* last time */
+	cur_chip = NULL;
+	OPLCloseTable();
+}
+
+#if (BUILD_YM3812 || BUILD_YM3526)
+/*******************************************************************************/
+/*		YM3812 local section                                                   */
+/*******************************************************************************/
+
+/* ---------- update one of chip ----------- */
+void YM3812UpdateOne(FM_OPL *OPL, INT16 *buffer, int length)
+{
+    int i;
+	int data;
+	OPLSAMPLE *buf = buffer;
+	UINT32 amsCnt  = OPL->amsCnt;
+	UINT32 vibCnt  = OPL->vibCnt;
+	UINT8 rythm = OPL->rythm&0x20;
+	OPL_CH *CH,*R_CH;
+
+	if( (void *)OPL != cur_chip ){
+		cur_chip = (void *)OPL;
+		/* channel pointers */
+		S_CH = OPL->P_CH;
+		E_CH = &S_CH[9];
+		/* rythm slot */
+		SLOT7_1 = &S_CH[7].SLOT[SLOT1];
+		SLOT7_2 = &S_CH[7].SLOT[SLOT2];
+		SLOT8_1 = &S_CH[8].SLOT[SLOT1];
+		SLOT8_2 = &S_CH[8].SLOT[SLOT2];
+		/* LFO state */
+		amsIncr = OPL->amsIncr;
+		vibIncr = OPL->vibIncr;
+		ams_table = OPL->ams_table;
+		vib_table = OPL->vib_table;
+	}
+	R_CH = rythm ? &S_CH[6] : E_CH;
+    for( i=0; i < length ; i++ )
+	{
+		/*            channel A         channel B         channel C      */
+		/* LFO */
+		ams = ams_table[(amsCnt+=amsIncr)>>AMS_SHIFT];
+		vib = vib_table[(vibCnt+=vibIncr)>>VIB_SHIFT];
+		outd[0] = 0;
+		/* FM part */
+		for(CH=S_CH ; CH < R_CH ; CH++)
+			OPL_CALC_CH(CH);
+		/* Rythn part */
+		if(rythm)
+			OPL_CALC_RH(S_CH);
+		/* limit check */
+		data = Limit( outd[0] , OPL_MAXOUT, OPL_MINOUT );
+		/* store to sound buffer */
+		buf[i] = data >> OPL_OUTSB;
+	}
+
+	OPL->amsCnt = amsCnt;
+	OPL->vibCnt = vibCnt;
+#ifdef OPL_OUTPUT_LOG
+	if(opl_dbg_fp)
+	{
+		for(opl_dbg_chip=0;opl_dbg_chip<opl_dbg_maxchip;opl_dbg_chip++)
+			if( opl_dbg_opl[opl_dbg_chip] == OPL) break;
+		fprintf(opl_dbg_fp,"%c%c%c",0x20+opl_dbg_chip,length&0xff,length/256);
+	}
+#endif
+}
+#endif /* (BUILD_YM3812 || BUILD_YM3526) */
+
+#if BUILD_Y8950
+
+void Y8950UpdateOne(FM_OPL *OPL, INT16 *buffer, int length)
+{
+    int i;
+	int data;
+	OPLSAMPLE *buf = buffer;
+	UINT32 amsCnt  = OPL->amsCnt;
+	UINT32 vibCnt  = OPL->vibCnt;
+	UINT8 rythm = OPL->rythm&0x20;
+	OPL_CH *CH,*R_CH;
+	YM_DELTAT *DELTAT = OPL->deltat;
+
+	/* setup DELTA-T unit */
+	YM_DELTAT_DECODE_PRESET(DELTAT);
+
+	if( (void *)OPL != cur_chip ){
+		cur_chip = (void *)OPL;
+		/* channel pointers */
+		S_CH = OPL->P_CH;
+		E_CH = &S_CH[9];
+		/* rythm slot */
+		SLOT7_1 = &S_CH[7].SLOT[SLOT1];
+		SLOT7_2 = &S_CH[7].SLOT[SLOT2];
+		SLOT8_1 = &S_CH[8].SLOT[SLOT1];
+		SLOT8_2 = &S_CH[8].SLOT[SLOT2];
+		/* LFO state */
+		amsIncr = OPL->amsIncr;
+		vibIncr = OPL->vibIncr;
+		ams_table = OPL->ams_table;
+		vib_table = OPL->vib_table;
+	}
+	R_CH = rythm ? &S_CH[6] : E_CH;
+    for( i=0; i < length ; i++ )
+	{
+		/*            channel A         channel B         channel C      */
+		/* LFO */
+		ams = ams_table[(amsCnt+=amsIncr)>>AMS_SHIFT];
+		vib = vib_table[(vibCnt+=vibIncr)>>VIB_SHIFT];
+		outd[0] = 0;
+		/* deltaT ADPCM */
+		if( DELTAT->portstate )
+			YM_DELTAT_ADPCM_CALC(DELTAT);
+		/* FM part */
+		for(CH=S_CH ; CH < R_CH ; CH++)
+			OPL_CALC_CH(CH);
+		/* Rythn part */
+		if(rythm)
+			OPL_CALC_RH(S_CH);
+		/* limit check */
+		data = Limit( outd[0] , OPL_MAXOUT, OPL_MINOUT );
+		/* store to sound buffer */
+		buf[i] = data >> OPL_OUTSB;
+	}
+	OPL->amsCnt = amsCnt;
+	OPL->vibCnt = vibCnt;
+	/* deltaT START flag */
+	if( !DELTAT->portstate )
+		OPL->status &= 0xfe;
+}
+#endif
+
+/* ---------- reset one of chip ---------- */
+void OPLResetChip(FM_OPL *OPL)
+{
+	int c,s;
+	int i;
+
+	/* reset chip */
+	OPL->mode   = 0;	/* normal mode */
+	OPL_STATUS_RESET(OPL,0x7f);
+	/* reset with register write */
+	OPLWriteReg(OPL,0x01,0); /* wabesel disable */
+	OPLWriteReg(OPL,0x02,0); /* Timer1 */
+	OPLWriteReg(OPL,0x03,0); /* Timer2 */
+	OPLWriteReg(OPL,0x04,0); /* IRQ mask clear */
+	for(i = 0xff ; i >= 0x20 ; i-- ) OPLWriteReg(OPL,i,0);
+	/* reset OPerator paramater */
+	for( c = 0 ; c < OPL->max_ch ; c++ )
+	{
+		OPL_CH *CH = &OPL->P_CH[c];
+		/* OPL->P_CH[c].PAN = OPN_CENTER; */
+		for(s = 0 ; s < 2 ; s++ )
+		{
+			/* wave table */
+			CH->SLOT[s].wavetable = &SIN_TABLE[0];
+			/* CH->SLOT[s].evm = ENV_MOD_RR; */
+			CH->SLOT[s].evc = EG_OFF;
+			CH->SLOT[s].eve = EG_OFF+1;
+			CH->SLOT[s].evs = 0;
+		}
+	}
+#if BUILD_Y8950
+	if(OPL->type&OPL_TYPE_ADPCM)
+	{
+		YM_DELTAT *DELTAT = OPL->deltat;
+
+		DELTAT->freqbase = OPL->freqbase;
+		DELTAT->output_pointer = outd;
+		DELTAT->portshift = 5;
+		DELTAT->output_range = DELTAT_MIXING_LEVEL<<TL_BITS;
+		YM_DELTAT_ADPCM_Reset(DELTAT,0);
+	}
+#endif
+}
+
+/* ----------  Create one of vietual YM3812 ----------       */
+/* 'rate'  is sampling rate and 'bufsiz' is the size of the  */
+FM_OPL *OPLCreate(int type, int clock, int rate)
+{
+	char *ptr;
+	FM_OPL *OPL;
+	int state_size;
+	int max_ch = 9; /* normaly 9 channels */
+
+	if( OPL_LockTable() ==-1) return NULL;
+	/* allocate OPL state space */
+	state_size  = sizeof(FM_OPL);
+	state_size += sizeof(OPL_CH)*max_ch;
+#if BUILD_Y8950
+	if(type&OPL_TYPE_ADPCM) state_size+= sizeof(YM_DELTAT);
+#endif
+	/* allocate memory block */
+	ptr = malloc(state_size);
+	if(ptr==NULL) return NULL;
+	/* clear */
+	memset(ptr,0,state_size);
+	OPL        = (FM_OPL *)ptr; ptr+=sizeof(FM_OPL);
+	OPL->P_CH  = (OPL_CH *)ptr; ptr+=sizeof(OPL_CH)*max_ch;
+#if BUILD_Y8950
+	if(type&OPL_TYPE_ADPCM) OPL->deltat = (YM_DELTAT *)ptr; ptr+=sizeof(YM_DELTAT);
+#endif
+	/* set channel state pointer */
+	OPL->type  = type;
+	OPL->clock = clock;
+	OPL->rate  = rate;
+	OPL->max_ch = max_ch;
+	/* init grobal tables */
+	OPL_initalize(OPL);
+	/* reset chip */
+	OPLResetChip(OPL);
+#ifdef OPL_OUTPUT_LOG
+	if(!opl_dbg_fp)
+	{
+		opl_dbg_fp = fopen("opllog.opl","wb");
+		opl_dbg_maxchip = 0;
+	}
+	if(opl_dbg_fp)
+	{
+		opl_dbg_opl[opl_dbg_maxchip] = OPL;
+		fprintf(opl_dbg_fp,"%c%c%c%c%c%c",0x00+opl_dbg_maxchip,
+			type,
+			clock&0xff,
+			(clock/0x100)&0xff,
+			(clock/0x10000)&0xff,
+			(clock/0x1000000)&0xff);
+		opl_dbg_maxchip++;
+	}
+#endif
+	return OPL;
+}
+
+/* ----------  Destroy one of vietual YM3812 ----------       */
+void OPLDestroy(FM_OPL *OPL)
+{
+#ifdef OPL_OUTPUT_LOG
+	if(opl_dbg_fp)
+	{
+		fclose(opl_dbg_fp);
+		opl_dbg_fp = NULL;
+	}
+#endif
+	OPL_UnLockTable();
+	free(OPL);
+}
+
+/* ----------  Option handlers ----------       */
+
+void OPLSetTimerHandler(FM_OPL *OPL,OPL_TIMERHANDLER TimerHandler,int channelOffset)
+{
+	OPL->TimerHandler   = TimerHandler;
+	OPL->TimerParam = channelOffset;
+}
+void OPLSetIRQHandler(FM_OPL *OPL,OPL_IRQHANDLER IRQHandler,int param)
+{
+	OPL->IRQHandler     = IRQHandler;
+	OPL->IRQParam = param;
+}
+void OPLSetUpdateHandler(FM_OPL *OPL,OPL_UPDATEHANDLER UpdateHandler,int param)
+{
+	OPL->UpdateHandler = UpdateHandler;
+	OPL->UpdateParam = param;
+}
+#if BUILD_Y8950
+void OPLSetPortHandler(FM_OPL *OPL,OPL_PORTHANDLER_W PortHandler_w,OPL_PORTHANDLER_R PortHandler_r,int param)
+{
+	OPL->porthandler_w = PortHandler_w;
+	OPL->porthandler_r = PortHandler_r;
+	OPL->port_param = param;
+}
+
+void OPLSetKeyboardHandler(FM_OPL *OPL,OPL_PORTHANDLER_W KeyboardHandler_w,OPL_PORTHANDLER_R KeyboardHandler_r,int param)
+{
+	OPL->keyboardhandler_w = KeyboardHandler_w;
+	OPL->keyboardhandler_r = KeyboardHandler_r;
+	OPL->keyboard_param = param;
+}
+#endif
+/* ---------- YM3812 I/O interface ---------- */
+int OPLWrite(FM_OPL *OPL,int a,int v)
+{
+	if( !(a&1) )
+	{	/* address port */
+		OPL->address = v & 0xff;
+	}
+	else
+	{	/* data port */
+		if(OPL->UpdateHandler) OPL->UpdateHandler(OPL->UpdateParam,0);
+#ifdef OPL_OUTPUT_LOG
+	if(opl_dbg_fp)
+	{
+		for(opl_dbg_chip=0;opl_dbg_chip<opl_dbg_maxchip;opl_dbg_chip++)
+			if( opl_dbg_opl[opl_dbg_chip] == OPL) break;
+		fprintf(opl_dbg_fp,"%c%c%c",0x10+opl_dbg_chip,OPL->address,v);
+	}
+#endif
+		OPLWriteReg(OPL,OPL->address,v);
+	}
+	return OPL->status>>7;
+}
+
+unsigned char OPLRead(FM_OPL *OPL,int a)
+{
+	if( !(a&1) )
+	{	/* status port */
+		return OPL->status & (OPL->statusmask|0x80);
+	}
+	/* data port */
+	switch(OPL->address)
+	{
+	case 0x05: /* KeyBoard IN */
+		if(OPL->type&OPL_TYPE_KEYBOARD)
+		{
+			if(OPL->keyboardhandler_r)
+				return OPL->keyboardhandler_r(OPL->keyboard_param);
+			else
+				LOG(LOG_WAR,("OPL:read unmapped KEYBOARD port\n"));
+		}
+		return 0;
+#if 0
+	case 0x0f: /* ADPCM-DATA  */
+		return 0;
+#endif
+	case 0x19: /* I/O DATA    */
+		if(OPL->type&OPL_TYPE_IO)
+		{
+			if(OPL->porthandler_r)
+				return OPL->porthandler_r(OPL->port_param);
+			else
+				LOG(LOG_WAR,("OPL:read unmapped I/O port\n"));
+		}
+		return 0;
+	case 0x1a: /* PCM-DATA    */
+		return 0;
+	}
+	return 0;
+}
+
+int OPLTimerOver(FM_OPL *OPL,int c)
+{
+	if( c )
+	{	/* Timer B */
+		OPL_STATUS_SET(OPL,0x20);
+	}
+	else
+	{	/* Timer A */
+		OPL_STATUS_SET(OPL,0x40);
+		/* CSM mode key,TL controll */
+		if( OPL->mode & 0x80 )
+		{	/* CSM mode total level latch and auto key on */
+			int ch;
+			if(OPL->UpdateHandler) OPL->UpdateHandler(OPL->UpdateParam,0);
+			for(ch=0;ch<9;ch++)
+				CSMKeyControll( &OPL->P_CH[ch] );
+		}
+	}
+	/* reload timer */
+	if (OPL->TimerHandler) (OPL->TimerHandler)(OPL->TimerParam+c,(double)OPL->T[c]*OPL->TimerBase);
+	return OPL->status>>7;
+}