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-rw-r--r--src/devices/bus/c64/buscard.cpp174
1 files changed, 174 insertions, 0 deletions
diff --git a/src/devices/bus/c64/buscard.cpp b/src/devices/bus/c64/buscard.cpp
new file mode 100644
index 00000000000..68e15cb41f5
--- /dev/null
+++ b/src/devices/bus/c64/buscard.cpp
@@ -0,0 +1,174 @@
+// license:BSD-3-Clause
+// copyright-holders:Curt Coder
+/**********************************************************************
+
+ Batteries Included BusCard cartridge emulation
+
+ Enable BASIC 4.0 with SYS 61000
+ Disable BASIC 4.0 with SYS 61003
+
+**********************************************************************/
+
+#include "emu.h"
+#include "buscard.h"
+
+
+
+//**************************************************************************
+// MACROS/CONSTANTS
+//**************************************************************************
+
+#define I8255_TAG "i8255"
+#define CENTRONICS_TAG "centronics"
+#define EXPANSION_TAG "exp"
+
+
+
+//**************************************************************************
+// DEVICE DEFINITIONS
+//**************************************************************************
+
+DEFINE_DEVICE_TYPE(C64_BUSCARD, buscard_t, "c64_buscard", "C64 BusCard cartridge")
+
+
+//-------------------------------------------------
+// ROM( buscard )
+//-------------------------------------------------
+
+ROM_START( buscard )
+ ROM_REGION( 0x2000, "rom", 0 )
+ ROM_LOAD( "buscardv0.9-tms2564.bin", 0x0000, 0x2000, CRC(175e8c96) SHA1(8fb4ba7e3d0b58dc01b66ef962955596f1b125b5) )
+ROM_END
+
+
+//-------------------------------------------------
+// rom_region - device-specific ROM region
+//-------------------------------------------------
+
+const tiny_rom_entry *buscard_t::device_rom_region() const
+{
+ return ROM_NAME( buscard );
+}
+
+
+//-------------------------------------------------
+// INPUT_PORTS( buscard )
+//-------------------------------------------------
+
+static INPUT_PORTS_START( buscard )
+ PORT_START("SW")
+ PORT_DIPUNKNOWN_DIPLOC( 0x01, 0x01, "SW:1" )
+ PORT_DIPUNKNOWN_DIPLOC( 0x02, 0x02, "SW:2" )
+ PORT_DIPUNKNOWN_DIPLOC( 0x04, 0x04, "SW:3" )
+ PORT_DIPUNKNOWN_DIPLOC( 0x08, 0x08, "SW:4" )
+ PORT_DIPUNKNOWN_DIPLOC( 0x10, 0x10, "SW:5" )
+ PORT_DIPUNKNOWN_DIPLOC( 0x20, 0x20, "SW:6" )
+ PORT_DIPUNKNOWN_DIPLOC( 0x40, 0x40, "SW:7" )
+ PORT_DIPUNKNOWN_DIPLOC( 0x80, 0x80, "SW:8" )
+INPUT_PORTS_END
+
+
+//-------------------------------------------------
+// input_ports - device-specific input ports
+//-------------------------------------------------
+
+ioport_constructor buscard_t::device_input_ports() const
+{
+ return INPUT_PORTS_NAME( buscard );
+}
+
+
+//-------------------------------------------------
+// device_add_mconfig - add device configuration
+//-------------------------------------------------
+
+void buscard_t::device_add_mconfig(machine_config &config)
+{
+ I8255A(config, m_ppi, 0);
+
+ IEEE488(config, m_bus, 0);
+ ieee488_slot_device::add_cbm_defaults(config, nullptr);
+
+ CENTRONICS(config, m_centronics, centronics_devices, nullptr);
+
+ C64_EXPANSION_SLOT(config, m_exp, DERIVED_CLOCK(1, 1), c64_expansion_cards, nullptr);
+ m_exp->set_passthrough();
+}
+
+
+
+//**************************************************************************
+// LIVE DEVICE
+//**************************************************************************
+
+//-------------------------------------------------
+// buscard_t - constructor
+//-------------------------------------------------
+
+buscard_t::buscard_t(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) :
+ device_t(mconfig, C64_BUSCARD, tag, owner, clock),
+ device_c64_expansion_card_interface(mconfig, *this),
+ m_ppi(*this, I8255_TAG),
+ m_bus(*this, IEEE488_TAG),
+ m_centronics(*this, CENTRONICS_TAG),
+ m_exp(*this, EXPANSION_TAG)
+{
+}
+
+
+//-------------------------------------------------
+// device_start - device-specific startup
+//-------------------------------------------------
+
+void buscard_t::device_start()
+{
+}
+
+
+//-------------------------------------------------
+// device_reset - device-specific reset
+//-------------------------------------------------
+
+void buscard_t::device_reset()
+{
+}
+
+
+//-------------------------------------------------
+// c64_cd_r - cartridge data read
+//-------------------------------------------------
+
+uint8_t buscard_t::c64_cd_r(offs_t offset, uint8_t data, int sphi2, int ba, int roml, int romh, int io1, int io2)
+{
+ return m_exp->cd_r(offset, data, sphi2, ba, roml, romh, io1, io2);
+}
+
+
+//-------------------------------------------------
+// c64_cd_w - cartridge data write
+//-------------------------------------------------
+
+void buscard_t::c64_cd_w(offs_t offset, uint8_t data, int sphi2, int ba, int roml, int romh, int io1, int io2)
+{
+ m_exp->cd_w(offset, data, sphi2, ba, roml, romh, io1, io2);
+}
+
+
+//-------------------------------------------------
+// c64_game_r - cartridge GAME read
+//-------------------------------------------------
+
+int buscard_t::c64_game_r(offs_t offset, int sphi2, int ba, int rw)
+{
+ return m_exp->game_r(offset, sphi2, ba, rw, m_slot->hiram());
+}
+
+
+//-------------------------------------------------
+// c64_exrom_r - cartridge EXROM read
+//-------------------------------------------------
+
+int buscard_t::c64_exrom_r(offs_t offset, int sphi2, int ba, int rw)
+{
+ return m_exp->exrom_r(offset, sphi2, ba, rw, m_slot->hiram());
+}