hng64: push code for what I believe is the sound chip into it's own file (nw)

scripts/src/sound.lua

@@ -432,6 +432,17 @@ if (SOUNDS["K056800"]~=null) then
 end
 
 
+---------------------------------------------------
+-- L7A1045 L6028 DSP-A 
+--@src/emu/sound/l7a1045_l6028_dsp_a.h,SOUNDS += L7A1045
+---------------------------------------------------
+
+if (SOUNDS["L7A1045"]~=null) then
+	files {
+		MAME_DIR .. "src/emu/sound/l7a1045_l6028_dsp_a.c",
+	}
+end
+
 
 ---------------------------------------------------
 -- LMC1992 mixer chip

scripts/target/mame/mame.lua

@@ -252,6 +252,7 @@ SOUNDS["MOS7360"] = true
 SOUNDS["SB0400"] = true
 SOUNDS["AC97"] = true
 SOUNDS["ES1373"] = true
+SOUNDS["L7A1045"] = true
 
 --------------------------------------------------
 -- specify available video cores

src/emu/sound/l7a1045_l6028_dsp_a.c

@@ -0,0 +1,217 @@
+/***************************************************************************
+
+    L7A1045 L6028 DSP-A 
+	(QFP120 package)
+
+	this is the audio chip used on the following
+	SNK Hyper NeoGeo 64 (arcade platform)
+	AKAI MPC3000 (synth)
+
+	both are driven by a V53, the MPC3000 isn't dumped.
+
+	appears to write a register number and channel/voice using
+	l7a1045_sound_select_w (offset 0)
+	format:
+
+	---- rrrr ---c cccc
+	r = register, c = channel
+
+	the channel select appears to address 32 different voices (5-bits)
+	the register select appears to use 4-bits with 0x0 to 0xa being valid
+
+	the registers data is written / read using offsets 1,2,3 after
+	setting the register + channel, this gives 3 16-bit values for
+	each register.
+
+	register format:
+
+	   offset 3           offset 2           offset 1
+	   fedcba9876543210 | fedcba9876543210 | fedcba9876543210
+
+	0  ----------------   ----------------   ----------------
+
+	1  ----------------   ----------------   ----------------
+
+	2  ----------------   ----------------   ----------------
+
+	3  ----------------   ----------------   ----------------
+
+	4  ----------------   ----------------   ----------------
+
+	5  ----------------   ----------------   ----------------
+
+	6  ----------------   ----------------   ----------------
+
+	7  ----------------   ----------------   ----------------
+
+	8  ----------------   ----------------   ---------------- (read only?)                                                        
+
+	9  ----------------   ----------------   ---------------- (read only?)
+
+	a  ----------------   ----------------   ----------------
+
+	Registers are not yet understood.
+
+	Some of the other ports on the HNG64 sound CPU may also be tied
+	to this chip, this isn't yet clear.
+
+	Sample data format TBA
+
+***************************************************************************/
+
+#include "emu.h"
+#include "l7a1045_l6028_dsp_a.h"
+
+
+// device type definition
+const device_type L7A1045 = &device_creator<l7a1045_sound_device>;
+
+
+//**************************************************************************
+//  LIVE DEVICE
+//**************************************************************************
+
+//-------------------------------------------------
+//  l7a1045_sound_device - constructor
+//-------------------------------------------------
+
+l7a1045_sound_device::l7a1045_sound_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock)
+	: device_t(mconfig, L7A1045, "L7A1045 L6028 DSP-A", tag, owner, clock, "l7a1045_custom", __FILE__),
+		device_sound_interface(mconfig, *this),
+		m_stream(NULL)
+		/*m_key(0),
+		m_base(NULL)*/
+{
+}
+
+
+//-------------------------------------------------
+//  device_start - device-specific startup
+//-------------------------------------------------
+
+void l7a1045_sound_device::device_start()
+{
+	/* Allocate the stream */
+	m_stream = stream_alloc(0, 2, clock() / 384);
+}
+
+
+//-------------------------------------------------
+//  sound_stream_update - handle a stream update
+//-------------------------------------------------
+
+void l7a1045_sound_device::sound_stream_update(sound_stream &stream, stream_sample_t **inputs, stream_sample_t **outputs, int samples)
+{
+	/* Clear the buffers */
+	memset(outputs[0], 0, samples*sizeof(*outputs[0]));
+	memset(outputs[1], 0, samples*sizeof(*outputs[1]));
+}
+
+
+WRITE16_MEMBER( l7a1045_sound_device::l7a1045_sound_w )
+{
+	m_stream->update();
+
+	switch (offset)
+	{
+	case 0x00:l7a1045_sound_select_w(space, offset, data, mem_mask); break;
+	case 0x01:l7a1045_sound_data_02_w(space, offset, data, mem_mask); break;
+	case 0x02:l7a1045_sound_data_04_w(space, offset, data, mem_mask); break;
+	case 0x03:l7a1045_sound_data_06_w(space, offset, data, mem_mask); break;
+	}
+
+}
+
+
+READ16_MEMBER( l7a1045_sound_device::l7a1045_sound_r )
+{
+	m_stream->update();
+
+	switch (offset)
+	{
+	case 0x00:
+	case 0x01:
+		printf("%08x: l7a1045_sound_r unknown offset %02x\n", space.device().safe_pc(), offset * 2);
+		return 0x0000;
+
+	case 0x02: return l7a1045_sound_port_0004_r(space, offset, mem_mask);
+	case 0x03: return l7a1045_sound_port_0006_r(space, offset, mem_mask);
+	}
+	return 0x000;
+}
+
+
+WRITE16_MEMBER(l7a1045_sound_device::l7a1045_sound_select_w)
+{
+	// I'm guessing these addresses are the sound chip / DSP?
+
+	// ---- ---- 000c cccc
+	// c = channel
+
+	if (data & 0x00e0) printf("%08x: l7a1045_sound_select_w unknown channel %02x\n", space.device().safe_pc(), data & 0x00ff);
+
+	UINT8 command = data >> 8;
+
+	switch (command)
+	{
+	case 0x00:
+	case 0x01:
+	case 0x02:
+	case 0x03: // 00003fffffff (startup only?)
+	case 0x04: // doesn't use 6
+	case 0x05: // 00003fffffff (mostly, often)
+	case 0x06: // 00007ff0ffff mostly
+	case 0x07: // 0000000f0708 etc. (low values)
+	case 0x08: // doesn't write to 2/4/6 with this set??
+	case 0x09: // doesn't write to 2/4/6 with this set??
+	case 0x0a: // random looking values
+
+		break;
+
+	default:
+		printf("%08x: l7a1045_sound_select_w unrecognized command %02x\n", space.device().safe_pc(), command);
+		break;
+	}
+
+	COMBINE_DATA(&m_audiochannel);
+}
+
+WRITE16_MEMBER(l7a1045_sound_device::l7a1045_sound_data_02_w)
+{
+	m_audiodat[m_audiochannel].dat[2] = data;
+
+//  if ((m_audiochannel & 0xff00) == 0x0a00)
+//      printf("%08x: write port 0x0002 chansel %04x data %04x (%04x%04x%04x)\n", space.device().safe_pc(), m_audiochannel, data, m_audiodat[m_audiochannel].dat[0], m_audiodat[m_audiochannel].dat[1], m_audiodat[m_audiochannel].dat[2]);
+}
+
+WRITE16_MEMBER(l7a1045_sound_device::l7a1045_sound_data_04_w)
+{
+	m_audiodat[m_audiochannel].dat[1] = data;
+
+//  if ((m_audiochannel & 0xff00) == 0x0a00)
+//      printf("%08x: write port 0x0004 chansel %04x data %04x (%04x%04x%04x)\n", space.device().safe_pc(), m_audiochannel, data, m_audiodat[m_audiochannel].dat[0], m_audiodat[m_audiochannel].dat[1], m_audiodat[m_audiochannel].dat[2]);
+}
+WRITE16_MEMBER(l7a1045_sound_device::l7a1045_sound_data_06_w)
+{
+	m_audiodat[m_audiochannel].dat[0] = data;
+
+//  if ((m_audiochannel & 0xff00) == 0x0a00)
+//      printf("%08x: write port 0x0006 chansel %04x data %04x (%04x%04x%04x)\n", space.device().safe_pc(), m_audiochannel, data, m_audiodat[m_audiochannel].dat[0], m_audiodat[m_audiochannel].dat[1], m_audiodat[m_audiochannel].dat[2]);
+}
+
+
+READ16_MEMBER(l7a1045_sound_device::l7a1045_sound_port_0004_r)
+{
+	// it writes the channel select before reading this.. so either it works on channels, or the command..
+	// read in irq5
+	printf("%08x: l7a1045_sound_port_0004_r mask (%04x) chn %04x\n", space.device().safe_pc(), mem_mask, m_audiochannel);
+	return rand();
+}
+
+READ16_MEMBER(l7a1045_sound_device::l7a1045_sound_port_0006_r)
+{
+	// it writes the channel select before reading this.. so either it works on channels, or the command..
+	// read in irq5
+	printf("%08x: l7a1045_sound_port_0006_r mask (%04x)  chn %04x\n", space.device().safe_pc(), mem_mask, m_audiochannel);
+	return rand();
+}

src/emu/sound/l7a1045_l6028_dsp_a.h

@@ -0,0 +1,67 @@
+//**************************************************************************
+//  TYPE DEFINITIONS
+//**************************************************************************
+
+struct l7a1045_voice
+{
+	/*
+	l7a1045_voice() :
+		pos(0),
+		frac(0)
+	{
+		memset(regs, 0, sizeof(UINT32)*8);
+	}
+
+	UINT32 regs[8];
+	UINT32 pos;
+	UINT32 frac;
+	*/
+};
+
+// ======================> l7a1045_sound_device
+
+class l7a1045_sound_device : public device_t,
+							public device_sound_interface
+{
+public:
+	l7a1045_sound_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
+	~l7a1045_sound_device() { }
+
+//	void set_base(INT8* base) { m_base = base; }
+
+	DECLARE_WRITE16_MEMBER( l7a1045_sound_w );
+	DECLARE_READ16_MEMBER( l7a1045_sound_r );
+
+protected:
+	// device-level overrides
+	virtual void device_start();
+
+	// sound stream update overrides
+	virtual void sound_stream_update(sound_stream &stream, stream_sample_t **inputs, stream_sample_t **outputs, int samples);
+
+private:
+	sound_stream *m_stream;
+//	l7a1045_voice m_voice[32];
+//	UINT16     m_key;
+//	INT8*      m_base;
+
+	UINT16 m_audiochannel;
+
+	struct l7a1045_48bit_data {
+		UINT16 dat[3];
+	};
+
+	l7a1045_48bit_data m_audiodat[0x10000];
+
+	DECLARE_WRITE16_MEMBER(l7a1045_sound_select_w);
+	DECLARE_WRITE16_MEMBER(l7a1045_sound_data_02_w);
+	DECLARE_WRITE16_MEMBER(l7a1045_sound_data_04_w);
+	DECLARE_WRITE16_MEMBER(l7a1045_sound_data_06_w);
+
+	DECLARE_READ16_MEMBER(l7a1045_sound_port_0004_r);
+	DECLARE_READ16_MEMBER(l7a1045_sound_port_0006_r);
+
+
+};
+
+extern const device_type L7A1045;

src/mame/audio/hng64.c

@@ -200,21 +200,6 @@ WRITE16_MEMBER(hng64_state::hng64_sound_port_0008_w)
 
 }
 
-READ16_MEMBER(hng64_state::hng64_sound_port_0004_r)
-{
-	// it writes the channel select before reading this.. so either it works on channels, or the command..
-	// read in irq5
-	printf("%08x: hng64_sound_port_0004_r mask (%04x) chn %04x\n", space.device().safe_pc(), mem_mask, m_audiochannel);
-	return rand();
-}
-
-READ16_MEMBER(hng64_state::hng64_sound_port_0006_r)
-{
-	// it writes the channel select before reading this.. so either it works on channels, or the command..
-	// read in irq5
-	printf("%08x: hng64_sound_port_0006_r mask (%04x)  chn %04x\n", space.device().safe_pc(), mem_mask, m_audiochannel);
-	return rand();
-}
 
 READ16_MEMBER(hng64_state::hng64_sound_port_0008_r)
 {
@@ -223,63 +208,7 @@ READ16_MEMBER(hng64_state::hng64_sound_port_0008_r)
 	return rand();
 }
 
-WRITE16_MEMBER(hng64_state::hng64_sound_select_w)
-{
-	// I'm guessing these addresses are the sound chip / DSP?
 
-	// ---- ---- 000c cccc
-	// c = channel
-
-	if (data & 0x00e0) printf("hng64_sound_select_w unknown channel %02x\n", data & 0x00ff);
-
-	UINT8 command = data >> 8;
-
-	switch (command)
-	{
-	case 0x00:
-	case 0x01:
-	case 0x02:
-	case 0x03: // 00003fffffff (startup only?)
-	case 0x04: // doesn't use 6
-	case 0x05: // 00003fffffff (mostly, often)
-	case 0x06: // 00007ff0ffff mostly
-	case 0x07: // 0000000f0708 etc. (low values)
-	case 0x08: // doesn't write to 2/4/6 with this set??
-	case 0x09: // doesn't write to 2/4/6 with this set??
-	case 0x0a: // random looking values
-
-		break;
-
-	default:
-		printf("hng64_sound_select_w unrecognized command %02x\n", command);
-		break;
-	}
-
-	COMBINE_DATA(&m_audiochannel);
-}
-
-WRITE16_MEMBER(hng64_state::hng64_sound_data_02_w)
-{
-	m_audiodat[m_audiochannel].dat[2] = data;
-
-//  if ((m_audiochannel & 0xff00) == 0x0a00)
-//      printf("write port 0x0002 chansel %04x data %04x (%04x%04x%04x)\n", m_audiochannel, data, m_audiodat[m_audiochannel].dat[0], m_audiodat[m_audiochannel].dat[1], m_audiodat[m_audiochannel].dat[2]);
-}
-
-WRITE16_MEMBER(hng64_state::hng64_sound_data_04_w)
-{
-	m_audiodat[m_audiochannel].dat[1] = data;
-
-//  if ((m_audiochannel & 0xff00) == 0x0a00)
-//      printf("write port 0x0004 chansel %04x data %04x (%04x%04x%04x)\n", m_audiochannel, data, m_audiodat[m_audiochannel].dat[0], m_audiodat[m_audiochannel].dat[1], m_audiodat[m_audiochannel].dat[2]);
-}
-WRITE16_MEMBER(hng64_state::hng64_sound_data_06_w)
-{
-	m_audiodat[m_audiochannel].dat[0] = data;
-
-//  if ((m_audiochannel & 0xff00) == 0x0a00)
-//      printf("write port 0x0006 chansel %04x data %04x (%04x%04x%04x)\n", m_audiochannel, data, m_audiodat[m_audiochannel].dat[0], m_audiodat[m_audiochannel].dat[1], m_audiodat[m_audiochannel].dat[2]);
-}
 
 // but why not just use the V33/V53 XA mode??
 WRITE16_MEMBER(hng64_state::hng64_sound_bank_w)
@@ -366,10 +295,8 @@ READ16_MEMBER(hng64_state::hng64_sound_port_0104_r)
 }
 
 static ADDRESS_MAP_START( hng_sound_io, AS_IO, 16, hng64_state )
-	AM_RANGE(0x0000, 0x0001) AM_WRITE( hng64_sound_select_w )
+	AM_RANGE(0x0000, 0x0007) AM_DEVREADWRITE("l7a1045", l7a1045_sound_device, l7a1045_sound_r, l7a1045_sound_w )
-	AM_RANGE(0x0002, 0x0003) AM_WRITE( hng64_sound_data_02_w )
+
-	AM_RANGE(0x0004, 0x0005) AM_READWRITE( hng64_sound_port_0004_r, hng64_sound_data_04_w )
-	AM_RANGE(0x0006, 0x0007) AM_READWRITE( hng64_sound_port_0006_r, hng64_sound_data_06_w )
 	AM_RANGE(0x0008, 0x0009) AM_READWRITE( hng64_sound_port_0008_r, hng64_sound_port_0008_w )
 	AM_RANGE(0x000a, 0x000b) AM_WRITE( hng64_sound_port_000a_w )
 	AM_RANGE(0x000c, 0x000d) AM_WRITE( hng64_sound_port_000c_w )
@@ -444,4 +371,8 @@ MACHINE_CONFIG_FRAGMENT( hng64_audio )
 	MCFG_V53_TCU_OUT1_HANDLER(WRITELINE(hng64_state, tcu_tm1_cb))
 	MCFG_V53_TCU_OUT2_HANDLER(WRITELINE(hng64_state, tcu_tm2_cb))
 
+	MCFG_SOUND_ADD("l7a1045", L7A1045, 16000000 ) // ??
+	MCFG_SOUND_ROUTE(1, "lspeaker", 1.0)
+	MCFG_SOUND_ROUTE(0, "rspeaker", 1.0)
+
 MACHINE_CONFIG_END

src/mame/includes/hng64.h

@@ -1,6 +1,7 @@
 #include "machine/msm6242.h"
 #include "cpu/mips/mips3.h"
 #include "cpu/nec/v53.h"
+#include "sound/l7a1045_l6028_dsp_a.h"
 
 enum
 {
@@ -362,21 +363,7 @@ public:
 	DECLARE_WRITE_LINE_MEMBER(tcu_tm1_cb);
 	DECLARE_WRITE_LINE_MEMBER(tcu_tm2_cb);
 
-	UINT16 m_audiochannel;
 
-	struct hng64_48bit_data {
-		UINT16 dat[3];
-	};
-
-	hng64_48bit_data m_audiodat[0x10000];
-
-	DECLARE_WRITE16_MEMBER(hng64_sound_select_w);
-	DECLARE_WRITE16_MEMBER(hng64_sound_data_02_w);
-	DECLARE_WRITE16_MEMBER(hng64_sound_data_04_w);
-	DECLARE_WRITE16_MEMBER(hng64_sound_data_06_w);
-
-	DECLARE_READ16_MEMBER(hng64_sound_port_0004_r);
-	DECLARE_READ16_MEMBER(hng64_sound_port_0006_r);
 
 	DECLARE_READ16_MEMBER(hng64_sound_port_0008_r);
 	DECLARE_WRITE16_MEMBER(hng64_sound_port_0008_w);