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Diffstat (limited to 'src/devices/bus/aquarius/c1541.cpp')
-rw-r--r--src/devices/bus/aquarius/c1541.cpp92
1 files changed, 92 insertions, 0 deletions
diff --git a/src/devices/bus/aquarius/c1541.cpp b/src/devices/bus/aquarius/c1541.cpp
new file mode 100644
index 00000000000..40ac2679422
--- /dev/null
+++ b/src/devices/bus/aquarius/c1541.cpp
@@ -0,0 +1,92 @@
+// license:BSD-3-Clause
+// copyright-holders:Nigel Barnes
+/**********************************************************************
+
+ Aquarius C1541 DOS Interface by Ron Koenig
+
+**********************************************************************/
+
+
+#include "emu.h"
+#include "c1541.h"
+
+
+//**************************************************************************
+// DEVICE DEFINITIONS
+//**************************************************************************
+
+DEFINE_DEVICE_TYPE(AQUARIUS_C1541, aquarius_c1541_device, "aquarius_c1541", "Aquarius C1541 DOS Interface")
+
+
+//-------------------------------------------------
+// device_add_mconfig - add device configuration
+//-------------------------------------------------
+
+void aquarius_c1541_device::device_add_mconfig(machine_config &config)
+{
+ cbm_iec_slot_device::add(config, m_iec, "c1541");
+}
+
+
+//**************************************************************************
+// LIVE DEVICE
+//**************************************************************************
+
+//-------------------------------------------------
+// aquarius_c1541_device - constructor
+//-------------------------------------------------
+
+aquarius_c1541_device::aquarius_c1541_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
+ : device_t(mconfig, AQUARIUS_C1541, tag, owner, clock)
+ , device_aquarius_cartridge_interface(mconfig, *this)
+ , m_iec(*this, "iec_bus")
+{
+}
+
+
+//-------------------------------------------------
+// device_start - device-specific startup
+//-------------------------------------------------
+
+void aquarius_c1541_device::device_start()
+{
+}
+
+
+//**************************************************************************
+// IMPLEMENTATION
+//**************************************************************************
+
+uint8_t aquarius_c1541_device::mreq_ce_r(offs_t offset)
+{
+ return get_rom_base()[offset & 0x3fff];
+}
+
+
+uint8_t aquarius_c1541_device::iorq_r(offs_t offset)
+{
+ uint8_t data = 0xff;
+
+ if (offset == 0x60)
+ {
+ // TODO: unknown connections
+ data = 0x00;
+ data |= m_iec->clk_r() << 7;
+ data |= m_iec->data_r() << 3;
+ logerror("iorq_r: %02x = %02x\n", offset, data);
+ }
+
+ return data;
+}
+
+void aquarius_c1541_device::iorq_w(offs_t offset, uint8_t data)
+{
+ if (offset == 0x60)
+ {
+ logerror("iorq_w: %02x = %02x\n", offset, data);
+ // TODO: unknown connections
+ m_iec->host_atn_w(BIT(data, 6));
+ m_iec->host_clk_w(BIT(data, 5));
+ m_iec->host_data_w(BIT(data, 4));
+ }
+}