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-rw-r--r--src/devices/bus/vic20/vic1010.cpp126
1 files changed, 126 insertions, 0 deletions
diff --git a/src/devices/bus/vic20/vic1010.cpp b/src/devices/bus/vic20/vic1010.cpp
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+++ b/src/devices/bus/vic20/vic1010.cpp
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+// license:BSD-3-Clause
+// copyright-holders:Curt Coder
+/**********************************************************************
+
+ Commodore VIC-1010 Expansion Module emulation
+
+**********************************************************************/
+
+#include "vic1010.h"
+
+
+
+//**************************************************************************
+// DEVICE DEFINITIONS
+//**************************************************************************
+
+const device_type VIC1010 = &device_creator<vic1010_device>;
+
+
+//-------------------------------------------------
+// MACHINE_DRIVER( vic1010 )
+//-------------------------------------------------
+
+static MACHINE_CONFIG_FRAGMENT( vic1010 )
+ MCFG_VIC20_PASSTHRU_EXPANSION_SLOT_ADD("slot1")
+ MCFG_VIC20_PASSTHRU_EXPANSION_SLOT_ADD("slot2")
+ MCFG_VIC20_PASSTHRU_EXPANSION_SLOT_ADD("slot3")
+ MCFG_VIC20_PASSTHRU_EXPANSION_SLOT_ADD("slot4")
+ MCFG_VIC20_PASSTHRU_EXPANSION_SLOT_ADD("slot5")
+ MCFG_VIC20_PASSTHRU_EXPANSION_SLOT_ADD("slot6")
+MACHINE_CONFIG_END
+
+
+//-------------------------------------------------
+// machine_config_additions - device-specific
+// machine configurations
+//-------------------------------------------------
+
+machine_config_constructor vic1010_device::device_mconfig_additions() const
+{
+ return MACHINE_CONFIG_NAME( vic1010 );
+}
+
+
+
+//**************************************************************************
+// LIVE DEVICE
+//**************************************************************************
+
+//-------------------------------------------------
+// vic1010_device - constructor
+//-------------------------------------------------
+
+vic1010_device::vic1010_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock)
+ : device_t(mconfig, VIC1010, "VIC1010", tag, owner, clock, "vic1010", __FILE__),
+ device_vic20_expansion_card_interface(mconfig, *this),
+ m_slot1(*this, "slot1"),
+ m_slot2(*this, "slot2"),
+ m_slot3(*this, "slot3"),
+ m_slot4(*this, "slot4"),
+ m_slot5(*this, "slot5"),
+ m_slot6(*this, "slot6")
+{
+}
+
+
+//-------------------------------------------------
+// device_start - device-specific startup
+//-------------------------------------------------
+
+void vic1010_device::device_start()
+{
+ // find devices
+ m_expansion_slot[0] = m_slot1;
+ m_expansion_slot[1] = m_slot2;
+ m_expansion_slot[2] = m_slot3;
+ m_expansion_slot[3] = m_slot4;
+ m_expansion_slot[4] = m_slot5;
+ m_expansion_slot[5] = m_slot6;
+}
+
+
+//-------------------------------------------------
+// device_reset - device-specific reset
+//-------------------------------------------------
+
+void vic1010_device::device_reset()
+{
+ for (int i = 0; i < MAX_SLOTS; i++)
+ {
+ m_expansion_slot[i]->reset();
+ }
+}
+
+
+//-------------------------------------------------
+// vic20_cd_r - cartridge data read
+//-------------------------------------------------
+
+UINT8 vic1010_device::vic20_cd_r(address_space &space, offs_t offset, UINT8 data, int ram1, int ram2, int ram3, int blk1, int blk2, int blk3, int blk5, int io2, int io3)
+{
+ for (int i = 0; i < MAX_SLOTS; i++)
+ {
+ UINT8 slot_data = m_expansion_slot[i]->cd_r(space, offset, data, ram1, ram2, ram3, blk1, blk2, blk3, blk5, io2, io3);
+
+ if (data != slot_data)
+ {
+ data = slot_data;
+ }
+ }
+
+ return data;
+}
+
+
+//-------------------------------------------------
+// vic20_cd_w - cartridge data write
+//-------------------------------------------------
+
+void vic1010_device::vic20_cd_w(address_space &space, offs_t offset, UINT8 data, int ram1, int ram2, int ram3, int blk1, int blk2, int blk3, int blk5, int io2, int io3)
+{
+ for (int i = 0; i < MAX_SLOTS; i++)
+ {
+ m_expansion_slot[i]->cd_w(space, offset, data, ram1, ram2, ram3, blk1, blk2, blk3, blk5, io2, io3);
+ }
+}