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-rw-r--r--src/devices/bus/vcs/compumat.c53
1 files changed, 53 insertions, 0 deletions
diff --git a/src/devices/bus/vcs/compumat.c b/src/devices/bus/vcs/compumat.c
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+++ b/src/devices/bus/vcs/compumat.c
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+// license:BSD-3-Clause
+// copyright-holders:Fabio Priuli
+/***************************************************************************
+
+ Atari 2600 cart Spectravideo Compumate (Cart + keyboard!)
+
+ This is tricky to implement and it is only a skeleton ATM.
+ The device needs to interface with both the TIA and the RIOT.
+
+***************************************************************************/
+
+
+#include "emu.h"
+#include "compumat.h"
+
+const device_type A26_ROM_COMPUMATE = &device_creator<a26_rom_cm_device>;
+
+
+a26_rom_cm_device::a26_rom_cm_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock)
+ : a26_rom_f6_device(mconfig, A26_ROM_COMPUMATE, "Atari 2600 ROM Cart Compumate", tag, owner, clock, "a2600_cm", __FILE__)
+{
+}
+
+//-------------------------------------------------
+// mapper specific start/reset
+//-------------------------------------------------
+
+void a26_rom_cm_device::device_start()
+{
+ save_item(NAME(m_base_bank));
+}
+
+void a26_rom_cm_device::device_reset()
+{
+ m_base_bank = 3;
+}
+
+
+static INPUT_PORTS_START( keyboard )
+INPUT_PORTS_END
+
+
+ioport_constructor a26_rom_cm_device::device_input_ports() const
+{
+ return INPUT_PORTS_NAME( keyboard );
+}
+
+
+
+READ8_MEMBER(a26_rom_cm_device::read_rom)
+{
+ return m_rom[offset + (m_base_bank * 0x1000)];
+}