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-rw-r--r--src/devices/bus/z88/z88.cpp212
1 files changed, 212 insertions, 0 deletions
diff --git a/src/devices/bus/z88/z88.cpp b/src/devices/bus/z88/z88.cpp
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index 00000000000..b1c13865fb7
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+++ b/src/devices/bus/z88/z88.cpp
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+// license:BSD-3-Clause
+// copyright-holders:Sandro Ronco
+/*********************************************************************
+
+ z88.c
+
+ Z88 cartridge slots emulation
+
+*********************************************************************/
+
+#include "emu.h"
+#include "z88.h"
+#include "emuopts.h"
+
+
+/***************************************************************************
+ PARAMETERS
+***************************************************************************/
+
+#define CLOSE_FLAP_TIME attotime::from_msec(200)
+
+//**************************************************************************
+// GLOBAL VARIABLES
+//**************************************************************************
+
+const device_type Z88CART_SLOT = &device_creator<z88cart_slot_device>;
+
+
+//**************************************************************************
+// Z88 cartridges Interface
+//**************************************************************************
+
+//-------------------------------------------------
+// device_z88cart_interface - constructor
+//-------------------------------------------------
+
+device_z88cart_interface::device_z88cart_interface(const machine_config &mconfig, device_t &device)
+ : device_slot_card_interface(mconfig, device)
+{
+}
+
+
+//-------------------------------------------------
+// ~device_z88cart_interface - destructor
+//-------------------------------------------------
+
+device_z88cart_interface::~device_z88cart_interface()
+{
+}
+
+
+//**************************************************************************
+// LIVE DEVICE
+//**************************************************************************
+
+//-------------------------------------------------
+// z88cart_slot_device - constructor
+//-------------------------------------------------
+z88cart_slot_device::z88cart_slot_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) :
+ device_t(mconfig, Z88CART_SLOT, "Z88 Cartridge Slot", tag, owner, clock, "z88cart_slot", __FILE__),
+ device_image_interface(mconfig, *this),
+ device_slot_interface(mconfig, *this),
+ m_out_flp_cb(*this)
+{
+}
+
+//-------------------------------------------------
+// z88cart_slot_device - destructor
+//-------------------------------------------------
+
+z88cart_slot_device::~z88cart_slot_device()
+{
+}
+
+//-------------------------------------------------
+// device_start - device-specific startup
+//-------------------------------------------------
+
+void z88cart_slot_device::device_start()
+{
+ m_cart = dynamic_cast<device_z88cart_interface *>(get_card_device());
+
+ // resolve callbacks
+ m_out_flp_cb.resolve_safe();
+
+ m_flp_timer = timer_alloc(TIMER_FLP_CLEAR);
+ m_flp_timer->reset();
+}
+
+//-------------------------------------------------
+// device_config_complete - perform any
+// operations now that the configuration is
+// complete
+//-------------------------------------------------
+
+void z88cart_slot_device::device_config_complete()
+{
+ // set brief and instance name
+ update_names();
+}
+
+
+//-------------------------------------------------
+// device_timer - handler timer events
+//-------------------------------------------------
+
+void z88cart_slot_device::device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr)
+{
+ if (id == TIMER_FLP_CLEAR)
+ {
+ // close the flap
+ m_out_flp_cb(CLEAR_LINE);
+ }
+}
+
+/*-------------------------------------------------
+ call load
+-------------------------------------------------*/
+
+bool z88cart_slot_device::call_load()
+{
+ if (m_cart)
+ {
+ offs_t read_length = 0;
+ UINT8 *cart_base = m_cart->get_cart_base();
+
+ if (cart_base != NULL)
+ {
+ if (software_entry() == NULL)
+ {
+ read_length = length();
+ fread(cart_base + (m_cart->get_cart_size() - read_length), read_length);
+ }
+ else
+ {
+ read_length = get_software_region_length("rom");
+ memcpy(cart_base + (m_cart->get_cart_size() - read_length), get_software_region("rom"), read_length);
+ }
+ }
+ else
+ return IMAGE_INIT_FAIL;
+ }
+
+ // open the flap
+ m_out_flp_cb(ASSERT_LINE);
+
+ // setup the timer for close the flap
+ m_flp_timer->adjust(CLOSE_FLAP_TIME);
+
+ return IMAGE_INIT_PASS;
+}
+
+
+/*-------------------------------------------------
+ call_unload
+-------------------------------------------------*/
+
+void z88cart_slot_device::call_unload()
+{
+ if (m_cart)
+ memset(m_cart->get_cart_base(), 0xff, m_cart->get_cart_size());
+
+ // open the flap
+ m_out_flp_cb(ASSERT_LINE);
+
+ // setup the timer for close the flap
+ m_flp_timer->adjust(CLOSE_FLAP_TIME);
+}
+
+
+/*-------------------------------------------------
+ call softlist load
+-------------------------------------------------*/
+
+bool z88cart_slot_device::call_softlist_load(software_list_device &swlist, const char *swname, const rom_entry *start_entry)
+{
+ load_software_part_region(*this, swlist, swname, start_entry );
+ return TRUE;
+}
+
+/*-------------------------------------------------
+ get default card software
+-------------------------------------------------*/
+
+void z88cart_slot_device::get_default_card_software(std::string &result)
+{
+ software_get_default_slot(result, "128krom");
+}
+
+
+/*-------------------------------------------------
+ read
+-------------------------------------------------*/
+
+READ8_MEMBER(z88cart_slot_device::read)
+{
+ if (m_cart)
+ return m_cart->read(space, offset);
+ else
+ return 0xff;
+}
+
+
+/*-------------------------------------------------
+ write
+-------------------------------------------------*/
+
+WRITE8_MEMBER(z88cart_slot_device::write)
+{
+ if (m_cart)
+ m_cart->write(space, offset, data);
+}