From 8fc526c463c23794dde611702561a3de0b5f637e Mon Sep 17 00:00:00 2001
From: Osso13 <mesgnet@yahoo.it>
Date: Fri, 16 Jan 2015 18:16:35 +0100
Subject: [PATCH] tiasound.c: added save state support (nw)

---
 src/emu/sound/tiaintf.c  |  2 +-
 src/emu/sound/tiasound.c | 20 +++++++++++++++++++-
 src/emu/sound/tiasound.h |  2 +-
 3 files changed, 21 insertions(+), 3 deletions(-)

diff --git a/src/emu/sound/tiaintf.c b/src/emu/sound/tiaintf.c
index 64285ff10b5..26ee206a7a0 100644
--- a/src/emu/sound/tiaintf.c
+++ b/src/emu/sound/tiaintf.c
@@ -30,7 +30,7 @@ tia_device::tia_device(const machine_config &mconfig, const char *tag, device_t
 void tia_device::device_start()
 {
 	m_channel = stream_alloc(0, 1, clock());
-	m_chip = tia_sound_init(clock(), clock(), 16);
+	m_chip = tia_sound_init(this, clock(), clock(), 16);
 	assert_always(m_chip != NULL, "Error creating TIA chip");
 }
 
diff --git a/src/emu/sound/tiasound.c b/src/emu/sound/tiasound.c
index 5c4296371af..e5934767536 100644
--- a/src/emu/sound/tiasound.c
+++ b/src/emu/sound/tiasound.c
@@ -526,6 +526,22 @@ static void poly_init(UINT8 *poly, int size, int f0, int f1)
 	}
 }
 
+static void tia_save_state(device_t *device, tia *tia)
+{
+	device->save_item(NAME(tia->AUDC));
+	device->save_item(NAME(tia->AUDF));
+	device->save_item(NAME(tia->AUDV));
+	device->save_item(NAME(tia->Outvol));
+	device->save_item(NAME(tia->P4));
+	device->save_item(NAME(tia->P5));
+	device->save_item(NAME(tia->P9));
+	device->save_item(NAME(tia->Div_n_cnt));
+	device->save_item(NAME(tia->Div_n_max));
+	device->save_item(NAME(tia->Div_3_cnt));
+	device->save_item(NAME(tia->Samp_n_cnt));
+	device->save_item(NAME(tia->oversampling));
+}
+
 /*****************************************************************************/
 /* Module:  tia_sh_start()                                                   */
 /* Purpose: to handle the power-up initialization functions                  */
@@ -541,7 +557,7 @@ static void poly_init(UINT8 *poly, int size, int f0, int f1)
 /*                                                                           */
 /*****************************************************************************/
 
-void *tia_sound_init(int clock, int sample_rate, int gain)
+void *tia_sound_init(device_t *device, int clock, int sample_rate, int gain)
 {
 	struct tia *chip;
 	int chan;
@@ -581,6 +597,8 @@ void *tia_sound_init(int clock, int sample_rate, int gain)
 		chip->P5[chan] = 0;
 		chip->P9[chan] = 0;
 	}
+	
+	tia_save_state(device, chip);
 
 	return chip;
 }
diff --git a/src/emu/sound/tiasound.h b/src/emu/sound/tiasound.h
index 9733d8dc1d7..9ca92a2bfd1 100644
--- a/src/emu/sound/tiasound.h
+++ b/src/emu/sound/tiasound.h
@@ -37,7 +37,7 @@
 #ifndef __TIASOUND_H__
 #define __TIASOUND_H__
 
-void *tia_sound_init(int clock, int sample_rate, int gain);
+void *tia_sound_init(device_t *device, int clock, int sample_rate, int gain);
 void tia_sound_free(void *chip);
 void tia_process (void *chip, stream_sample_t *buffer, int length);
 void tia_write(void *chip, offs_t offset, UINT8 data);