summaryrefslogtreecommitdiffstatshomepage
path: root/src/devices/bus/adam/exp.h
diff options
context:
space:
mode:
Diffstat (limited to 'src/devices/bus/adam/exp.h')
-rw-r--r--src/devices/bus/adam/exp.h130
1 files changed, 130 insertions, 0 deletions
diff --git a/src/devices/bus/adam/exp.h b/src/devices/bus/adam/exp.h
new file mode 100644
index 00000000000..7719c3f8d11
--- /dev/null
+++ b/src/devices/bus/adam/exp.h
@@ -0,0 +1,130 @@
+// license:BSD-3-Clause
+// copyright-holders:Curt Coder
+/**********************************************************************
+
+ Coleco Adam Expansion Port emulation
+
+**********************************************************************/
+
+#pragma once
+
+#ifndef __ADAM_EXPANSION_SLOT__
+#define __ADAM_EXPANSION_SLOT__
+
+#include "emu.h"
+
+
+
+//**************************************************************************
+// CONSTANTS
+//**************************************************************************
+
+#define ADAM_LEFT_EXPANSION_SLOT_TAG "slot1"
+#define ADAM_CENTER_EXPANSION_SLOT_TAG "slot2"
+#define ADAM_RIGHT_EXPANSION_SLOT_TAG "slot3"
+
+
+
+//**************************************************************************
+// INTERFACE CONFIGURATION MACROS
+//**************************************************************************
+
+#define MCFG_ADAM_EXPANSION_SLOT_ADD(_tag, _clock, _slot_intf, _def_slot) \
+ MCFG_DEVICE_ADD(_tag, ADAM_EXPANSION_SLOT, _clock) \
+ MCFG_DEVICE_SLOT_INTERFACE(_slot_intf, _def_slot, false)
+
+
+#define MCFG_ADAM_EXPANSION_SLOT_IRQ_CALLBACK(_write) \
+ devcb = &adam_expansion_slot_device::set_irq_wr_callback(*device, DEVCB_##_write);
+
+
+
+//**************************************************************************
+// TYPE DEFINITIONS
+//**************************************************************************
+
+// ======================> adam_expansion_slot_device
+
+class device_adam_expansion_slot_card_interface;
+
+class adam_expansion_slot_device : public device_t,
+ public device_slot_interface,
+ public device_image_interface
+{
+public:
+ // construction/destruction
+ adam_expansion_slot_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
+ virtual ~adam_expansion_slot_device() { }
+
+ template<class _Object> static devcb_base &set_irq_wr_callback(device_t &device, _Object object) { return downcast<adam_expansion_slot_device &>(device).m_write_irq.set_callback(object); }
+
+ // computer interface
+ UINT8 bd_r(address_space &space, offs_t offset, UINT8 data, int bmreq, int biorq, int aux_rom_cs, int cas1, int cas2);
+ void bd_w(address_space &space, offs_t offset, UINT8 data, int bmreq, int biorq, int aux_rom_cs, int cas1, int cas2);
+
+ // cartridge interface
+ DECLARE_WRITE_LINE_MEMBER( irq_w ) { m_write_irq(state); }
+
+protected:
+ // device-level overrides
+ virtual void device_config_complete() { update_names(); }
+ virtual void device_start();
+ virtual void device_reset();
+
+ // image-level overrides
+ virtual bool call_load();
+ virtual bool call_softlist_load(software_list_device &swlist, const char *swname, const rom_entry *start_entry);
+
+ virtual iodevice_t image_type() const { return IO_CARTSLOT; }
+
+ virtual bool is_readable() const { return 1; }
+ virtual bool is_writeable() const { return 0; }
+ virtual bool is_creatable() const { return 0; }
+ virtual bool must_be_loaded() const { return 0; }
+ virtual bool is_reset_on_load() const { return 1; }
+ virtual const char *image_interface() const { return "adam_rom"; }
+ virtual const char *file_extensions() const { return "bin,rom"; }
+ virtual const option_guide *create_option_guide() const { return NULL; }
+
+ // slot interface overrides
+ virtual void get_default_card_software(std::string &result);
+
+ devcb_write_line m_write_irq;
+
+ device_adam_expansion_slot_card_interface *m_card;
+};
+
+
+// ======================> device_adam_expansion_slot_card_interface
+
+class device_adam_expansion_slot_card_interface : public device_slot_card_interface
+{
+ friend class adam_expansion_slot_device;
+
+public:
+ // construction/destruction
+ device_adam_expansion_slot_card_interface(const machine_config &mconfig, device_t &device);
+ virtual ~device_adam_expansion_slot_card_interface() { }
+
+protected:
+ // runtime
+ virtual UINT8 adam_bd_r(address_space &space, offs_t offset, UINT8 data, int bmreq, int biorq, int aux_rom_cs, int cas1, int cas2) { return data; }
+ virtual void adam_bd_w(address_space &space, offs_t offset, UINT8 data, int bmreq, int biorq, int aux_rom_cs, int cas1, int cas2) { }
+
+ adam_expansion_slot_device *m_slot;
+
+ optional_shared_ptr<UINT8> m_rom;
+};
+
+
+// device type definition
+extern const device_type ADAM_EXPANSION_SLOT;
+
+
+SLOT_INTERFACE_EXTERN( adam_slot1_devices );
+SLOT_INTERFACE_EXTERN( adam_slot2_devices );
+SLOT_INTERFACE_EXTERN( adam_slot3_devices );
+
+
+
+#endif