(MESS) ql: Expansions WIP. (nw)

hash/ql_cart.xml

@@ -38,32 +38,4 @@
 		</part>
 	</software>
 
-	<software name="trumpcrd">
-		<description>Trump Card (v2.15)</description>
-		<year>198?</year>
-		<publisher>Miracle Systems</publisher>
-
-		<part name="cart" interface="ql_cart">
-			<feature name="slot" value="trumpcard" />
-
-			<dataarea name="rom" size="0x8000">
-				<rom name="trumpcard-125.rom" size="0x8000" crc="938eaa46" sha1="9b3458cf3a279ed86ba395dc45c8f26939d6c44d" offset="0" />
-			</dataarea>
-		</part>
-	</software>
-
-	<software name="superdsk">
-		<description>Super Disk</description>
-		<year>198?</year>
-		<publisher>Sandy</publisher>
-
-		<part name="cart" interface="ql_cart">
-			<feature name="slot" value="superdisk" />
-
-			<dataarea name="rom" size="0x4000">
-				<rom name="sandysuperdisk.rom" size="0x4000" crc="b52077da" sha1="bf531758145ffd083e01c1cf9c45d0e9264a3b53" offset="0" />
-			</dataarea>
-		</part>
-	</software>
-
 </softwarelist>

src/emu/bus/ql/sandy_superdisk.c

@@ -18,6 +18,7 @@
 //**************************************************************************
 
 #define WD1772_TAG		"wd1772"
+#define TTL74273_TAG	"ttl74273"
 #define CENTRONICS_TAG	"centronics"
 
 
@@ -67,18 +68,29 @@ FLOPPY_FORMATS_MEMBER( sandy_super_disk_t::floppy_formats )
 FLOPPY_FORMATS_END
 
 
+//-------------------------------------------------
+//  centronics
+//-------------------------------------------------
+
+WRITE_LINE_MEMBER( sandy_super_disk_t::busy_w )
+{
+	m_busy = state;
+	check_interrupt();
+}
+
+
 //-------------------------------------------------
 //  MACHINE_CONFIG_FRAGMENT( sandy_super_disk )
 //-------------------------------------------------
 
 static MACHINE_CONFIG_FRAGMENT( sandy_super_disk )
 	MCFG_DEVICE_ADD(WD1772_TAG, WD1772x, 8000000)
-	//MCFG_WD_FDC_INTRQ_CALLBACK(WRITELINE(sandy_super_disk_t, fdc_intrq_w))
-	//MCFG_WD_FDC_DRQ_CALLBACK(WRITELINE(sandy_super_disk_t, fdc_drq_w))
 	MCFG_FLOPPY_DRIVE_ADD(WD1772_TAG":0", sandy_super_disk_floppies, "35dd", sandy_super_disk_t::floppy_formats)
 	MCFG_FLOPPY_DRIVE_ADD(WD1772_TAG":1", sandy_super_disk_floppies, NULL, sandy_super_disk_t::floppy_formats)
 
 	MCFG_CENTRONICS_ADD(CENTRONICS_TAG, centronics_printers, "printer")
+	MCFG_CENTRONICS_BUSY_HANDLER(WRITELINE(sandy_super_disk_t, busy_w))
+	MCFG_CENTRONICS_OUTPUT_LATCH_ADD(TTL74273_TAG, CENTRONICS_TAG)
 MACHINE_CONFIG_END
 
 
@@ -105,8 +117,13 @@ machine_config_constructor sandy_super_disk_t::device_mconfig_additions() const
 sandy_super_disk_t::sandy_super_disk_t(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) :
 	device_t(mconfig, SANDY_SUPER_DISK, "Sandy Super Disk", tag, owner, clock, "sandy_super_disk", __FILE__),
 	device_ql_expansion_card_interface(mconfig, *this),
+	m_fdc(*this, WD1772_TAG),
+	m_floppy0(*this, WD1772_TAG":0"),
+	m_floppy1(*this, WD1772_TAG":1"),
+	m_centronics(*this, CENTRONICS_TAG),
+	m_latch(*this, TTL74273_TAG),
 	m_rom(*this, "rom"),
-	m_ram(*this, "ram")
+	m_busy(1)
 {
 }
 
@@ -126,6 +143,12 @@ void sandy_super_disk_t::device_start()
 
 void sandy_super_disk_t::device_reset()
 {
+	m_fdc->reset();
+	m_fdc->set_floppy(NULL);
+	m_fdc->dden_w(0);
+
+	m_latch->write(0);
+	m_centronics->write_strobe(1);
 }
 
 
@@ -135,6 +158,42 @@ void sandy_super_disk_t::device_reset()
 
 UINT8 sandy_super_disk_t::read(address_space &space, offs_t offset, UINT8 data)
 {
+	if ((offset & 0xf0000) == 0xc0000)
+	{
+		if ((offset & 0xffc0) == 0x3fc0)
+		{
+			switch ((offset >> 2) & 0x03)
+			{
+			case 0:
+				data = m_fdc->read(space, offset & 0x03);
+				break;
+			
+			case 3:
+				/*
+
+					bit		description
+
+					0 		BUSY
+					1 		
+					2 		
+					3 		
+					4 		
+					5 		
+					6 		
+					7 		
+
+				*/
+
+				data = m_busy;
+				break;
+			}
+		}
+		else
+		{
+			data = m_rom->base()[offset & 0x3fff];
+		}
+	}
+
 	return data;
 }
 
@@ -145,4 +204,72 @@ UINT8 sandy_super_disk_t::read(address_space &space, offs_t offset, UINT8 data)
 
 void sandy_super_disk_t::write(address_space &space, offs_t offset, UINT8 data)
 {
+	if ((offset & 0xf0000) == 0xc0000)
+	{
+		if ((offset & 0xffc0) == 0x3fc0)
+		{
+			switch ((offset >> 2) & 0x03)
+			{
+			case 0:
+				m_fdc->write(space, offset & 0x03, data);
+				break;
+
+			case 1:
+				{
+				/*
+
+					bit		description
+
+					0 		SIDE ONE
+					1 		DSEL0
+					2 		DSEL1
+					3 		M ON0
+					4 		/DDEN
+					5 		STROBE inverted
+					6 		enable printer interrupt
+					7 		
+
+				*/
+
+				floppy_image_device *floppy = NULL;
+
+				if (BIT(data, 1)) 
+				{
+					floppy = m_floppy0->get_device();
+				}
+				else if (BIT(data, 2))
+				{
+					floppy = m_floppy1->get_device();
+				}
+
+				m_fdc->set_floppy(floppy);
+
+				if (floppy)
+				{
+					floppy->ss_w(BIT(data, 0));
+					floppy->mon_w(BIT(data, 3));
+				}
+
+				m_fdc->dden_w(BIT(data, 4));
+
+				m_centronics->write_strobe(!BIT(data, 5));
+
+				m_fd6 = BIT(data, 6);
+				check_interrupt();
+				}
+				break;
+
+			case 2:
+				m_latch->write(data);
+				break;
+			}
+		}
+	}
+}
+
+void sandy_super_disk_t::check_interrupt()
+{
+	int extint = m_fd6 && m_busy;
+
+	m_slot->extintl_w(extint ? ASSERT_LINE : CLEAR_LINE);
 }

src/emu/bus/ql/sandy_superdisk.h

@@ -38,6 +38,8 @@ public:
 	virtual const rom_entry *device_rom_region() const;
 	virtual machine_config_constructor device_mconfig_additions() const;
 
+	WRITE_LINE_MEMBER( busy_w );
+
 	DECLARE_FLOPPY_FORMATS( floppy_formats );
 
 protected:
@@ -50,8 +52,17 @@ protected:
 	virtual void write(address_space &space, offs_t offset, UINT8 data);
 
 private:
+	void check_interrupt();
+
+	required_device<wd1772_t> m_fdc;
+	required_device<floppy_connector> m_floppy0;
+	required_device<floppy_connector> m_floppy1;
+	required_device<centronics_device> m_centronics;
+	required_device<output_latch_device> m_latch;
 	required_memory_region m_rom;
-	optional_shared_ptr<UINT8> m_ram;
+
+	int m_busy;
+	int m_fd6;
 };