From b29b84dd779070e753d8e5eff6f2f548e616ef6a Mon Sep 17 00:00:00 2001
From: Robbbert <robbbert@users.noreply.github.com>
Date: Tue, 25 Sep 2012 12:10:15 +0000
Subject: [PATCH] SPECTRA - wip

---
 src/mame/drivers/spectra.c | 70 +++++++++++++++++++++++++++++++++-----
 1 file changed, 61 insertions(+), 9 deletions(-)

diff --git a/src/mame/drivers/spectra.c b/src/mame/drivers/spectra.c
index 9428a1034f9..694d2b08463 100644
--- a/src/mame/drivers/spectra.c
+++ b/src/mame/drivers/spectra.c
@@ -1,26 +1,40 @@
 /******************************************************************************************
-  Pinball
-  Valley Spectra IV
-  -----------------
-  Rotating game, like Midway's "Rotation VIII".
+    Pinball
+    Valley Spectra IV
+
+    Rotating game, like Midway's "Rotation VIII".
+
+    Schematic and PinMAME used as references.
+
+
 *******************************************************************************************/
 
 
-#include "emu.h"
+#include "machine/genpin.h"
 #include "cpu/m6502/m6502.h"
+#include "machine/6532riot.h"
+#include "machine/nvram.h"
+//#include "spectra.lh"
+
 
 class spectra_state : public driver_device
 {
 public:
 	spectra_state(const machine_config &mconfig, device_type type, const char *tag)
 		: driver_device(mconfig, type, tag),
-		  m_maincpu(*this, "maincpu")
+	m_maincpu(*this, "maincpu"),
+	m_samples(*this, "samples")
 	{ }
 
+	DECLARE_READ8_MEMBER(porta_r);
+	DECLARE_READ8_MEMBER(portb_r);
+	DECLARE_WRITE8_MEMBER(porta_w);
+	DECLARE_WRITE8_MEMBER(portb_w);
 protected:
 
 	// devices
 	required_device<cpu_device> m_maincpu;
+	required_device<samples_device> m_samples;
 
 	// driver_device overrides
 	virtual void machine_reset();
@@ -32,8 +46,9 @@ public:
 static ADDRESS_MAP_START( spectra_map, AS_PROGRAM, 8, spectra_state )
 	ADDRESS_MAP_UNMAP_HIGH
 	ADDRESS_MAP_GLOBAL_MASK(0xfff)
-	AM_RANGE(0x0000, 0x017f) AM_RAM
-	//AM_RANGE(0x0180, 0x019f) riot device
+	AM_RANGE(0x0000, 0x00ff) AM_RAM AM_SHARE("nvram") // battery backed, 2x 5101L
+	AM_RANGE(0x0100, 0x017f) AM_RAM // RIOT RAM
+	AM_RANGE(0x0180, 0x019f) AM_DEVREADWRITE_LEGACY("riot", riot6532_r, riot6532_w)
 	AM_RANGE(0x0400, 0x0fff) AM_ROM
 ADDRESS_MAP_END
 
@@ -48,10 +63,46 @@ DRIVER_INIT_MEMBER(spectra_state,spectra)
 {
 }
 
+READ8_MEMBER( spectra_state::porta_r )
+{printf("ReadA ");
+	return 0;
+}
+
+READ8_MEMBER( spectra_state::portb_r )
+{printf("ReadB ");
+	return 0;
+}
+
+WRITE8_MEMBER( spectra_state::porta_w )
+{printf("A=%X ",data);
+}
+
+WRITE8_MEMBER( spectra_state::portb_w )
+{printf("B=%X ",data);
+}
+
+
+static const riot6532_interface riot6532_intf =
+{
+	DEVCB_DRIVER_MEMBER(spectra_state, porta_r),	// port a in
+	DEVCB_DRIVER_MEMBER(spectra_state, portb_r),	// port b in
+	DEVCB_DRIVER_MEMBER(spectra_state, porta_w),	// port a out
+	DEVCB_DRIVER_MEMBER(spectra_state, portb_w),	// port b in
+	DEVCB_CPU_INPUT_LINE("maincpu", M6502_IRQ_LINE)	// interrupt
+};
+
 static MACHINE_CONFIG_START( spectra, spectra_state )
 	/* basic machine hardware */
-	MCFG_CPU_ADD("maincpu", M6502, 3579545/4)
+	MCFG_CPU_ADD("maincpu", M6502, 3579545/4)  // actually a 6503
 	MCFG_CPU_PROGRAM_MAP(spectra_map)
+	MCFG_RIOT6532_ADD("riot", 3579545/4, riot6532_intf) // R6532
+	MCFG_NVRAM_ADD_0FILL("nvram")
+
+	/* Video */
+	//MCFG_DEFAULT_LAYOUT(layout_spectra)
+
+	/* Sound */
+	MCFG_FRAGMENT_ADD( genpin_audio )
 MACHINE_CONFIG_END
 
 /*--------------------------------
@@ -60,6 +111,7 @@ MACHINE_CONFIG_END
 ROM_START(spectra)
 	ROM_REGION(0x10000, "maincpu", 0)
 	ROM_LOAD("spect_u5.dat", 0x0400, 0x0400, CRC(49e0759f) SHA1(c3badc90ff834cbc92d8c519780069310c2b1507))
+	// pinmame has a different u4 rom: CRC(b58f1205) SHA1(9578fd89485f3f560789cb0f24c7116e4bc1d0da)
 	ROM_LOAD("spect_u4.dat", 0x0800, 0x0400, BAD_DUMP CRC(e6519689) SHA1(06ef3d349ea27a072889b7c379f258d29b7217be))
 	ROM_LOAD("spect_u3.dat", 0x0c00, 0x0400, CRC(9ca7510f) SHA1(a87849f16903836158063d593bb4a2e90c7473c8))
 ROM_END