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Diffstat (limited to 'src/devices/bus/cbmiec/vic1520.c')
-rw-r--r--src/devices/bus/cbmiec/vic1520.c192
1 files changed, 192 insertions, 0 deletions
diff --git a/src/devices/bus/cbmiec/vic1520.c b/src/devices/bus/cbmiec/vic1520.c
new file mode 100644
index 00000000000..55cd372f385
--- /dev/null
+++ b/src/devices/bus/cbmiec/vic1520.c
@@ -0,0 +1,192 @@
+// license:BSD-3-Clause
+// copyright-holders:Curt Coder
+/**********************************************************************
+
+ Commodore VIC-1520 Plotter emulation
+
+**********************************************************************/
+
+/*
+PA0 ATN
+PA1 _CLK
+PA5 ATTN ACK
+PA6 NRFD
+PA7 _DATA IN
+
+PB0 IEEE SELECT
+PB1 IEEE SELECT
+PB2 IEEE SELECT
+PB4 LED
+PB5 REMOVE
+PB6 CHANGE
+PB7 FEED
+
+PC0 _DN
+PC1 _UP
+PC7 COLOR SENSOR SW
+
+PD0 X MOTOR COM A
+PD1 X MOTOR COM B
+PD2 X MOTOR COM C
+PD3 X MOTOR COM D
+PD4 Y MOTOR COM A
+PD5 Y MOTOR COM B
+PD6 Y MOTOR COM C
+PD7 Y MOTOR COM D
+*/
+
+#include "vic1520.h"
+
+
+
+//**************************************************************************
+// MACROS / CONSTANTS
+//**************************************************************************
+
+#define M6500_1_TAG "u1"
+
+
+
+//**************************************************************************
+// DEVICE DEFINITIONS
+//**************************************************************************
+
+const device_type VIC1520 = &device_creator<vic1520_t>;
+
+
+//-------------------------------------------------
+// ROM( vic1520 )
+//-------------------------------------------------
+
+ROM_START( vic1520 )
+ ROM_REGION( 0x800, M6500_1_TAG, 0 )
+ ROM_SYSTEM_BIOS( 0, "r01", "325340-01" )
+ ROMX_LOAD( "325340-01.u1", 0x000, 0x800, CRC(3757da6f) SHA1(8ab43603f74b0f269bbe890d1939a9ae31307eb1), ROM_BIOS(1) )
+ ROM_SYSTEM_BIOS( 1, "r03", "325340-03" )
+ ROMX_LOAD( "325340-03.u1", 0x000, 0x800, CRC(f72ea2b6) SHA1(74c15b2cc1f7632bffa37439609cbdb50b82ea92), ROM_BIOS(2) )
+ROM_END
+
+
+//-------------------------------------------------
+// rom_region - device-specific ROM region
+//-------------------------------------------------
+
+const rom_entry *vic1520_t::device_rom_region() const
+{
+ return ROM_NAME( vic1520 );
+}
+
+
+//-------------------------------------------------
+// ADDRESS_MAP( vic1520_mem )
+//-------------------------------------------------
+
+static ADDRESS_MAP_START( vic1520_mem, AS_PROGRAM, 8, vic1520_t )
+ ADDRESS_MAP_GLOBAL_MASK(0xfff)
+ AM_RANGE(0x000, 0x03f) AM_RAM
+ AM_RANGE(0x800, 0xfff) AM_ROM AM_REGION(M6500_1_TAG, 0)
+ADDRESS_MAP_END
+
+
+//-------------------------------------------------
+// MACHINE_DRIVER( vic1520 )
+//-------------------------------------------------
+
+static MACHINE_CONFIG_FRAGMENT( vic1520 )
+ MCFG_CPU_ADD(M6500_1_TAG, M6502, XTAL_2MHz) // M6500/1
+ MCFG_CPU_PROGRAM_MAP(vic1520_mem)
+MACHINE_CONFIG_END
+
+
+//-------------------------------------------------
+// machine_config_additions - device-specific
+// machine configurations
+//-------------------------------------------------
+
+machine_config_constructor vic1520_t::device_mconfig_additions() const
+{
+ return MACHINE_CONFIG_NAME( vic1520 );
+}
+
+
+//-------------------------------------------------
+// INPUT_PORTS( vic1520 )
+//-------------------------------------------------
+
+static INPUT_PORTS_START( vic1520 )
+INPUT_PORTS_END
+
+
+//-------------------------------------------------
+// input_ports - device-specific input ports
+//-------------------------------------------------
+
+ioport_constructor vic1520_t::device_input_ports() const
+{
+ return INPUT_PORTS_NAME( vic1520 );
+}
+
+
+
+//**************************************************************************
+// LIVE DEVICE
+//**************************************************************************
+
+//-------------------------------------------------
+// vic1520_t - constructor
+//-------------------------------------------------
+
+vic1520_t::vic1520_t(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) :
+ device_t(mconfig, VIC1520, "VIC-1520", tag, owner, clock, "vic1520", __FILE__),
+ device_cbm_iec_interface(mconfig, *this)
+{
+}
+
+
+//-------------------------------------------------
+// device_start - device-specific startup
+//-------------------------------------------------
+
+void vic1520_t::device_start()
+{
+}
+
+
+//-------------------------------------------------
+// device_reset - device-specific reset
+//-------------------------------------------------
+
+void vic1520_t::device_reset()
+{
+}
+
+
+//-------------------------------------------------
+// cbm_iec_atn -
+//-------------------------------------------------
+
+void vic1520_t::cbm_iec_atn(int state)
+{
+}
+
+
+//-------------------------------------------------
+// cbm_iec_data -
+//-------------------------------------------------
+
+void vic1520_t::cbm_iec_data(int state)
+{
+}
+
+
+//-------------------------------------------------
+// cbm_iec_reset -
+//-------------------------------------------------
+
+void vic1520_t::cbm_iec_reset(int state)
+{
+ if (!state)
+ {
+ device_reset();
+ }
+}