apple2: Preliminary support for the Synetix SuperSprite card. [Golden Child, R. Belmont]

5 files changed, 212 insertions, 0 deletions

diff --git a/scripts/src/bus.lua b/scripts/src/bus.lua
index 16cf53eee9d..f3ca1efab6d 100644
--- a/scripts/src/bus.lua
+++ b/scripts/src/bus.lua
@@ -1731,6 +1731,8 @@ if (BUSES["A2BUS"]~=null) then
 		MAME_DIR .. "src/devices/bus/a2bus/agat7langcard.h",
 		MAME_DIR .. "src/devices/bus/a2bus/agat7ram.cpp",
 		MAME_DIR .. "src/devices/bus/a2bus/agat7ram.h",
+		MAME_DIR .. "src/devices/bus/a2bus/ssprite.cpp",
+		MAME_DIR .. "src/devices/bus/a2bus/ssprite.h",
 	}
 end
 
diff --git a/src/devices/bus/a2bus/ssprite.cpp b/src/devices/bus/a2bus/ssprite.cpp
new file mode 100644
index 00000000000..d0265fca5df
--- /dev/null
+++ b/src/devices/bus/a2bus/ssprite.cpp
@@ -0,0 +1,150 @@
+// license:BSD-3-Clause
+// copyright-holders:R. Belmont, Golden Child
+/*********************************************************************
+
+    ssprite.cpp
+
+    Implementation of the Synetix SuperSprite
+
+*********************************************************************/
+
+#include "emu.h"
+#include "ssprite.h"
+#include "sound/tms5220.h"
+#include "speaker.h"
+
+
+/***************************************************************************
+    PARAMETERS
+***************************************************************************/
+
+#define TMS_TAG "ssprite_tms"
+#define TMS5220_TAG "ssprite_tms5220"
+#define AY_TAG "ssprite_ay"
+#define SCREEN_TAG "screen"
+
+//**************************************************************************
+//  GLOBAL VARIABLES
+//**************************************************************************
+
+DEFINE_DEVICE_TYPE(A2BUS_SSPRITE, a2bus_ssprite_device, "a2ssprite", "Synetix SuperSprite")
+
+//-------------------------------------------------
+//  device_add_mconfig - add device configuration
+//-------------------------------------------------
+
+MACHINE_CONFIG_MEMBER( a2bus_ssprite_device::device_add_mconfig )
+	MCFG_DEVICE_ADD( TMS_TAG, TMS9918A, XTAL_10_738635MHz / 2 )
+	MCFG_TMS9928A_VRAM_SIZE(0x4000) // 16k of VRAM
+	MCFG_TMS9928A_OUT_INT_LINE_CB(WRITELINE(a2bus_ssprite_device, tms_irq_w))
+	MCFG_TMS9928A_SCREEN_ADD_NTSC( SCREEN_TAG )
+	MCFG_SCREEN_UPDATE_DEVICE( TMS_TAG, tms9918a_device, screen_update )
+
+	MCFG_SPEAKER_STANDARD_MONO("mono")
+	MCFG_SOUND_ADD(AY_TAG, AY8912, 1022727)
+	MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.0)
+	MCFG_SOUND_ADD(TMS5220_TAG, TMS5220, 640000)
+	MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.0)
+MACHINE_CONFIG_END
+
+//**************************************************************************
+//  LIVE DEVICE
+//**************************************************************************
+
+a2bus_ssprite_device::a2bus_ssprite_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) :
+	a2bus_ssprite_device(mconfig, A2BUS_SSPRITE, tag, owner, clock)
+{
+}
+
+a2bus_ssprite_device::a2bus_ssprite_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock) :
+	device_t(mconfig, type, tag, owner, clock),
+	device_a2bus_card_interface(mconfig, *this),
+	m_tms(*this, TMS_TAG),
+	m_ay(*this, AY_TAG),
+	m_tms5220(*this, TMS5220_TAG)
+{
+}
+
+//-------------------------------------------------
+//  device_start - device-specific startup
+//-------------------------------------------------
+
+void a2bus_ssprite_device::device_start()
+{
+	// set_a2bus_device makes m_slot valid
+	set_a2bus_device();
+}
+
+void a2bus_ssprite_device::device_reset()
+{
+}
+
+/*
+    C0nx map: (info from Synetix SuperSprite Owners manual.pdf page 33 of 266)
+    0 - TMS9918 VDP vram read/write
+    1 - TMS9918 VDP register write
+    2 - TMS5220 Speech read/write
+    3 - Video Switch APPLE VIDEO IN OFF
+    4 - Video Switch APPLE VIDEO IN ON
+    5 - Video Switch APPLE ONLY OUT
+    6 - Video Switch MIX VDP/EXTERNAL VIDEO
+    7 - TMS 9918 WRITE ONLY/FRAME RESET
+    C - AY Sound data write
+    D - AY Sound data write
+    E - AY Sound register write or data read
+    F - AY Sound register write or data read
+*/
+
+
+uint8_t a2bus_ssprite_device::read_c0nx(address_space &space, uint8_t offset)
+{
+	switch (offset)
+	{
+		case 0:
+			return m_tms->vram_read(space, 0);
+		case 1:
+			return m_tms->register_read(space, 0);
+		case 2:
+			return 0x1f | m_tms5220->status_r(space, 0); // copied this line from a2echoii.cpp
+		case 14:
+		case 15:
+			return m_ay->data_r(space, 0);
+	}
+
+	return 0xff;
+}
+
+void a2bus_ssprite_device::write_c0nx(address_space &space, uint8_t offset, uint8_t data)
+{
+	switch (offset)
+	{
+		case 0:
+			m_tms->vram_write(space, 0, data);
+			break;
+		case 1:
+			m_tms->register_write(space, 0, data);
+			break;
+		case 2:
+			m_tms5220->data_w(space, offset, data);
+			break;
+		case 12 ... 13:
+			m_ay->data_w(space, 0, data);
+			break;
+		case 14:
+		case 15:
+			m_ay->address_w(space, 0, data);
+			break;
+	}
+}
+
+WRITE_LINE_MEMBER( a2bus_ssprite_device::tms_irq_w )
+{
+	if (state)
+	{
+		raise_slot_irq();
+	}
+	else
+	{
+		lower_slot_irq();
+	}
+}
diff --git a/src/devices/bus/a2bus/ssprite.h b/src/devices/bus/a2bus/ssprite.h
new file mode 100644
index 00000000000..8b5df012a51
--- /dev/null
+++ b/src/devices/bus/a2bus/ssprite.h
@@ -0,0 +1,56 @@
+// license:BSD-3-Clause
+// copyright-holders:R. Belmont, Golden Child
+/*********************************************************************
+
+    ssprite.h
+
+    Synetix SuperSprite
+    (code based on Third Millenium Engineering Arcade Board)
+
+*********************************************************************/
+
+#ifndef MAME_BUS_A2BUS_A2SSPRITE_H
+#define MAME_BUS_A2BUS_A2SSPRITE_H
+
+#pragma once
+
+#include "a2bus.h"
+#include "video/tms9928a.h"
+#include "sound/ay8910.h"
+#include "sound/tms5220.h"
+
+//**************************************************************************
+//  TYPE DEFINITIONS
+//**************************************************************************
+
+class a2bus_ssprite_device:
+	public device_t,
+	public device_a2bus_card_interface
+{
+public:
+	// construction/destruction
+	a2bus_ssprite_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
+
+protected:
+	a2bus_ssprite_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock);
+
+	virtual void device_start() override;
+	virtual void device_reset() override;
+	virtual void device_add_mconfig(machine_config &config) override;
+
+	// overrides of standard a2bus slot functions
+	virtual uint8_t read_c0nx(address_space &space, uint8_t offset) override;
+	virtual void write_c0nx(address_space &space, uint8_t offset, uint8_t data) override;
+
+private:
+	DECLARE_WRITE_LINE_MEMBER( tms_irq_w );
+
+	required_device<tms9918a_device> m_tms;
+	required_device<ay8910_device> m_ay;
+	required_device<tms5220_device> m_tms5220;
+};
+
+// device type definition
+DECLARE_DEVICE_TYPE(A2BUS_SSPRITE, a2bus_ssprite_device)
+
+#endif  // MAME_BUS_A2BUS_SSPRITE_H
diff --git a/src/mame/drivers/apple2.cpp b/src/mame/drivers/apple2.cpp
index 6caba17e4ad..819bc39f388 100644
--- a/src/mame/drivers/apple2.cpp
+++ b/src/mame/drivers/apple2.cpp
@@ -76,6 +76,7 @@ II Plus: RAM options reduced to 16/32/48 KB.
 #include "bus/a2bus/ramcard128k.h"
 #include "bus/a2bus/ramcard16k.h"
 #include "bus/a2bus/timemasterho.h"
+#include "bus/a2bus/ssprite.h"
 
 #include "screen.h"
 #include "softlist.h"
@@ -1318,6 +1319,7 @@ static SLOT_INTERFACE_START(apple2_cards)
 	SLOT_INTERFACE("ezcgi", A2BUS_EZCGI)    /* E-Z Color Graphics Interface */
 	SLOT_INTERFACE("ezcgi9938", A2BUS_EZCGI_9938)   /* E-Z Color Graphics Interface (TMS9938) */
 	SLOT_INTERFACE("ezcgi9958", A2BUS_EZCGI_9958)   /* E-Z Color Graphics Interface (TMS9958) */
+	SLOT_INTERFACE("ssprite", A2BUS_SSPRITE)    /* Synetix SuperSprite Board */
 //  SLOT_INTERFACE("magicmusician", A2BUS_MAGICMUSICIAN)    /* Magic Musician Card */
 SLOT_INTERFACE_END
 
diff --git a/src/mame/drivers/apple2e.cpp b/src/mame/drivers/apple2e.cpp
index 732a525b6d5..9e423c3c2e6 100644
--- a/src/mame/drivers/apple2e.cpp
+++ b/src/mame/drivers/apple2e.cpp
@@ -146,6 +146,7 @@ Address bus A0-A11 is Y0-Y11
 #include "bus/a2bus/a2estd80col.h"
 #include "bus/a2bus/a2eext80col.h"
 #include "bus/a2bus/a2eramworks3.h"
+#include "bus/a2bus/ssprite.h"
 
 #include "bus/rs232/rs232.h"
 
@@ -3734,6 +3735,7 @@ static SLOT_INTERFACE_START(apple2_cards)
 	SLOT_INTERFACE("ezcgi9958", A2BUS_EZCGI_9958)   /* E-Z Color Graphics Interface (TMS9958) */
 //  SLOT_INTERFACE("magicmusician", A2BUS_MAGICMUSICIAN)    /* Magic Musician Card */
 	SLOT_INTERFACE("pcxport", A2BUS_PCXPORTER) /* Applied Engineering PC Transporter */
+	SLOT_INTERFACE("ssprite", A2BUS_SSPRITE)    /* Synetix SuperSprite Board */
 SLOT_INTERFACE_END
 
 static SLOT_INTERFACE_START(apple2eaux_cards)