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Diffstat (limited to 'src/devices/bus/ql/cst_q_plus4.c')
-rw-r--r--src/devices/bus/ql/cst_q_plus4.c144
1 files changed, 144 insertions, 0 deletions
diff --git a/src/devices/bus/ql/cst_q_plus4.c b/src/devices/bus/ql/cst_q_plus4.c
new file mode 100644
index 00000000000..76f5a046566
--- /dev/null
+++ b/src/devices/bus/ql/cst_q_plus4.c
@@ -0,0 +1,144 @@
+// license:BSD-3-Clause
+// copyright-holders:Curt Coder
+/**********************************************************************
+
+ CST Q+4 emulation
+
+**********************************************************************/
+
+#include "cst_q_plus4.h"
+
+
+
+//**************************************************************************
+// MACROS/CONSTANTS
+//**************************************************************************
+
+#define MC6821_TAG "mc6821"
+
+
+
+//**************************************************************************
+// DEVICE DEFINITIONS
+//**************************************************************************
+
+const device_type CST_Q_PLUS4 = &device_creator<cst_q_plus4_t>;
+
+
+//-------------------------------------------------
+// ROM( cst_q_plus4 )
+//-------------------------------------------------
+
+ROM_START( cst_q_plus4 )
+ ROM_REGION( 0x2000, "rom", 0 )
+ ROM_LOAD( "qplus4.rom", 0x0000, 0x2000, CRC(53a078fb) SHA1(53d6828c1b6ba052b862fd80ac8a364b0078330d) )
+ROM_END
+
+
+//-------------------------------------------------
+// rom_region - device-specific ROM region
+//-------------------------------------------------
+
+const rom_entry *cst_q_plus4_t::device_rom_region() const
+{
+ return ROM_NAME( cst_q_plus4 );
+}
+
+
+//-------------------------------------------------
+// MACHINE_CONFIG_FRAGMENT( cst_q_plus4 )
+//-------------------------------------------------
+
+static MACHINE_CONFIG_FRAGMENT( cst_q_plus4 )
+ MCFG_DEVICE_ADD(MC6821_TAG, PIA6821, 0)
+
+ MCFG_QL_EXPANSION_SLOT_ADD("exp1", ql_expansion_cards, NULL)
+ MCFG_QL_EXPANSION_SLOT_EXTINTL_CALLBACK(WRITELINE(cst_q_plus4_t, exp1_extintl_w))
+
+ MCFG_QL_EXPANSION_SLOT_ADD("exp2", ql_expansion_cards, NULL)
+ MCFG_QL_EXPANSION_SLOT_EXTINTL_CALLBACK(WRITELINE(cst_q_plus4_t, exp2_extintl_w))
+
+ MCFG_QL_EXPANSION_SLOT_ADD("exp3", ql_expansion_cards, NULL)
+ MCFG_QL_EXPANSION_SLOT_EXTINTL_CALLBACK(WRITELINE(cst_q_plus4_t, exp3_extintl_w))
+
+ MCFG_QL_EXPANSION_SLOT_ADD("exp4", ql_expansion_cards, NULL)
+ MCFG_QL_EXPANSION_SLOT_EXTINTL_CALLBACK(WRITELINE(cst_q_plus4_t, exp4_extintl_w))
+MACHINE_CONFIG_END
+
+
+//-------------------------------------------------
+// machine_config_additions - device-specific
+// machine configurations
+//-------------------------------------------------
+
+machine_config_constructor cst_q_plus4_t::device_mconfig_additions() const
+{
+ return MACHINE_CONFIG_NAME( cst_q_plus4 );
+}
+
+
+
+//**************************************************************************
+// LIVE DEVICE
+//**************************************************************************
+
+//-------------------------------------------------
+// cst_q_plus4_t - constructor
+//-------------------------------------------------
+
+cst_q_plus4_t::cst_q_plus4_t(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) :
+ device_t(mconfig, CST_Q_PLUS4, "CST Q+4", tag, owner, clock, "ql_qplus4", __FILE__),
+ device_ql_expansion_card_interface(mconfig, *this),
+ m_exp1(*this, "exp1"),
+ m_exp2(*this, "exp2"),
+ m_exp3(*this, "exp3"),
+ m_exp4(*this, "exp4"),
+ m_rom(*this, "rom"),
+ m_exp1_extinl(CLEAR_LINE),
+ m_exp2_extinl(CLEAR_LINE),
+ m_exp3_extinl(CLEAR_LINE),
+ m_exp4_extinl(CLEAR_LINE)
+{
+}
+
+
+//-------------------------------------------------
+// device_start - device-specific startup
+//-------------------------------------------------
+
+void cst_q_plus4_t::device_start()
+{
+}
+
+
+//-------------------------------------------------
+// read -
+//-------------------------------------------------
+
+UINT8 cst_q_plus4_t::read(address_space &space, offs_t offset, UINT8 data)
+{
+ if (offset >= 0xc000 && offset < 0xc200)
+ {
+ data = m_rom->base()[offset & 0x1fff];
+ }
+
+ data = m_exp1->read(space, offset, data);
+ data = m_exp2->read(space, offset, data);
+ data = m_exp3->read(space, offset, data);
+ data = m_exp4->read(space, offset, data);
+
+ return data;
+}
+
+
+//-------------------------------------------------
+// write -
+//-------------------------------------------------
+
+void cst_q_plus4_t::write(address_space &space, offs_t offset, UINT8 data)
+{
+ m_exp1->write(space, offset, data);
+ m_exp2->write(space, offset, data);
+ m_exp3->write(space, offset, data);
+ m_exp4->write(space, offset, data);
+}