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author Curt Coder <curtcoder@mail.com>2013-10-20 19:50:55 +0000
committer Curt Coder <curtcoder@mail.com>2013-10-20 19:50:55 +0000
commitd756fa8ec44d6572cf192a4883c1d7e00e5c47cc (patch)
treed3b88aec276826c5340bc13b5ac87113da5b7eb2 /src/emu/bus/vip/byteio.h
parent25f4c260a8bdb38430151d7488e725c24d20a0e9 (diff)
(MESS) vip: Moved expansion and byte I/O ports under emu/bus. (nw)
Diffstat (limited to 'src/emu/bus/vip/byteio.h')
-rw-r--r--src/emu/bus/vip/byteio.h136
1 files changed, 136 insertions, 0 deletions
diff --git a/src/emu/bus/vip/byteio.h b/src/emu/bus/vip/byteio.h
new file mode 100644
index 00000000000..4fa9423f192
--- /dev/null
+++ b/src/emu/bus/vip/byteio.h
@@ -0,0 +1,136 @@
+// license:BSD-3-Clause
+// copyright-holders:Curt Coder
+/**********************************************************************
+
+ RCA Cosmac VIP Byte Input/Output port emulation
+
+ Copyright MESS Team.
+ Visit http://mamedev.org for licensing and usage restrictions.
+
+**********************************************************************
+
+ A IN 0
+ B IN 1
+ C IN 2
+ D IN 3
+ E IN 4
+ F IN 5
+ H IN 6
+ J IN 7
+ K INST
+ L _EF4
+ M OUT 0
+ N OUT 1
+ P OUT 2
+ R OUT 3
+ S OUT 4
+ T OUT 5
+ U OUT 6
+ V OUT 7
+ W Q
+ X _EF3
+ Y +5 V
+ Z GND
+
+**********************************************************************/
+
+#pragma once
+
+#ifndef __VIP_BYTEIO_PORT__
+#define __VIP_BYTEIO_PORT__
+
+#include "emu.h"
+
+
+
+//**************************************************************************
+// CONSTANTS
+//**************************************************************************
+
+#define VIP_BYTEIO_PORT_TAG "byteio"
+
+
+
+//**************************************************************************
+// INTERFACE CONFIGURATION MACROS
+//**************************************************************************
+
+#define MCFG_VIP_BYTEIO_PORT_ADD(_tag, _slot_intf, _def_slot, _inst) \
+ MCFG_DEVICE_ADD(_tag, VIP_BYTEIO_PORT, 0) \
+ MCFG_DEVICE_SLOT_INTERFACE(_slot_intf, _def_slot, false) \
+ downcast<vip_byteio_port_device *>(device)->set_inst_callback(DEVCB2_##_inst);
+
+
+
+//**************************************************************************
+// TYPE DEFINITIONS
+//**************************************************************************
+
+// ======================> vip_byteio_port_device
+
+class device_vip_byteio_port_interface;
+
+class vip_byteio_port_device : public device_t,
+ public device_slot_interface
+{
+public:
+ // construction/destruction
+ vip_byteio_port_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
+
+ template<class _inst> void set_inst_callback(_inst inst) { m_write_inst.set_callback(inst); }
+
+ // computer interface
+ UINT8 in_r();
+ void out_w(UINT8 data);
+ DECLARE_READ_LINE_MEMBER( ef3_r );
+ DECLARE_READ_LINE_MEMBER( ef4_r );
+ DECLARE_WRITE_LINE_MEMBER( q_w );
+
+ // cartridge interface
+ DECLARE_WRITE_LINE_MEMBER( inst_w ) { m_write_inst(state); }
+
+protected:
+ // device-level overrides
+ virtual void device_start();
+ virtual void device_reset();
+
+ devcb2_write_line m_write_inst;
+
+ device_vip_byteio_port_interface *m_cart;
+};
+
+
+// ======================> device_vip_byteio_port_interface
+
+// class representing interface-specific live c64_expansion card
+class device_vip_byteio_port_interface : public device_slot_card_interface
+{
+public:
+ // construction/destruction
+ device_vip_byteio_port_interface(const machine_config &mconfig, device_t &device);
+
+ virtual UINT8 vip_in_r() { return 0xff; };
+ virtual void vip_out_w(UINT8 data) { };
+
+ virtual int vip_ef3_r() { return CLEAR_LINE; }
+ virtual int vip_ef4_r() { return CLEAR_LINE; }
+
+ virtual void vip_q_w(int state) { };
+
+protected:
+ vip_byteio_port_device *m_slot;
+};
+
+
+// device type definition
+extern const device_type VIP_BYTEIO_PORT;
+
+
+// slot devices
+#include "vp620.h"
+
+SLOT_INTERFACE_EXTERN( vip_byteio_cards );
+
+
+
+#endif