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Diffstat (limited to 'src/devices/bus/cbmiec/serialbox.cpp')
-rw-r--r--src/devices/bus/cbmiec/serialbox.cpp150
1 files changed, 150 insertions, 0 deletions
diff --git a/src/devices/bus/cbmiec/serialbox.cpp b/src/devices/bus/cbmiec/serialbox.cpp
new file mode 100644
index 00000000000..c3b653cb030
--- /dev/null
+++ b/src/devices/bus/cbmiec/serialbox.cpp
@@ -0,0 +1,150 @@
+// license:BSD-3-Clause
+// copyright-holders:Curt Coder
+/**********************************************************************
+
+ Serial Box 64K Serial Port Buffer emulation
+
+**********************************************************************/
+
+#include "serialbox.h"
+
+
+
+//**************************************************************************
+// MACROS / CONSTANTS
+//**************************************************************************
+
+#define M6502_TAG "u1"
+#define M8520_TAG "u5"
+#define WD1770_TAG "u4"
+
+
+enum
+{
+ LED_POWER = 0,
+ LED_ACT
+};
+
+
+
+//**************************************************************************
+// DEVICE DEFINITIONS
+//**************************************************************************
+
+const device_type SERIAL_BOX = &device_creator<serial_box_device>;
+
+
+//-------------------------------------------------
+// ROM( serial_box )
+//-------------------------------------------------
+
+ROM_START( serial_box )
+ ROM_REGION( 0x1000, M6502_TAG, 0 )
+ ROM_LOAD( "serialbx.bin", 0x0000, 0x1000, CRC(d0e0218c) SHA1(9b922f1e9f9b71e771361c52d4df2aa5695488a5) )
+ROM_END
+
+
+//-------------------------------------------------
+// rom_region - device-specific ROM region
+//-------------------------------------------------
+
+const rom_entry *serial_box_device::device_rom_region() const
+{
+ return ROM_NAME( serial_box );
+}
+
+
+//-------------------------------------------------
+// ADDRESS_MAP( serial_box_mem )
+//-------------------------------------------------
+
+static ADDRESS_MAP_START( serial_box_mem, AS_PROGRAM, 8, serial_box_device )
+ AM_RANGE(0xf000, 0xffff) AM_ROM AM_REGION(M6502_TAG, 0)
+ADDRESS_MAP_END
+
+
+//-------------------------------------------------
+// MACHINE_DRIVER( serial_box )
+//-------------------------------------------------
+
+static MACHINE_CONFIG_FRAGMENT( serial_box )
+ MCFG_CPU_ADD(M6502_TAG, M65C02, XTAL_4MHz/4)
+ MCFG_CPU_PROGRAM_MAP(serial_box_mem)
+MACHINE_CONFIG_END
+
+
+//-------------------------------------------------
+// machine_config_additions - device-specific
+// machine configurations
+//-------------------------------------------------
+
+machine_config_constructor serial_box_device::device_mconfig_additions() const
+{
+ return MACHINE_CONFIG_NAME( serial_box );
+}
+
+
+
+//**************************************************************************
+// LIVE DEVICE
+//**************************************************************************
+
+//-------------------------------------------------
+// serial_box_device - constructor
+//-------------------------------------------------
+
+serial_box_device::serial_box_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock)
+ : device_t(mconfig, SERIAL_BOX, "Serial Box", tag, owner, clock, "serbox", __FILE__),
+ device_cbm_iec_interface(mconfig, *this),
+ m_maincpu(*this, M6502_TAG)
+{
+}
+
+
+//-------------------------------------------------
+// device_start - device-specific startup
+//-------------------------------------------------
+
+void serial_box_device::device_start()
+{
+}
+
+
+//-------------------------------------------------
+// device_reset - device-specific reset
+//-------------------------------------------------
+
+void serial_box_device::device_reset()
+{
+}
+
+
+//-------------------------------------------------
+// cbm_iec_atn -
+//-------------------------------------------------
+
+void serial_box_device::cbm_iec_atn(int state)
+{
+}
+
+
+//-------------------------------------------------
+// cbm_iec_data -
+//-------------------------------------------------
+
+void serial_box_device::cbm_iec_data(int state)
+{
+}
+
+
+//-------------------------------------------------
+// cbm_iec_reset -
+//-------------------------------------------------
+
+void serial_box_device::cbm_iec_reset(int state)
+{
+ if (!state)
+ {
+ device_reset();
+ }
+}