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author Fabio Priuli <etabeta78@users.noreply.github.com>2014-10-10 15:28:46 +0000
committer Fabio Priuli <etabeta78@users.noreply.github.com>2014-10-10 15:28:46 +0000
commitf0fad04eb68b545e6075f3b65d6d4db8c03e4025 (patch)
treee1a52b526fd0a7e306fd5cfe9adac62976555823 /src/emu/bus/vectrex/slot.c
parent4de494250b26fc201171ac3b2b3c24f25ac08aab (diff)
(MESS) converted vectrex and crvision to use slot devices for
their carts. nw. (with these, we are done for the moment with new slot devices for carts...)
Diffstat (limited to 'src/emu/bus/vectrex/slot.c')
-rw-r--r--src/emu/bus/vectrex/slot.c280
1 files changed, 280 insertions, 0 deletions
diff --git a/src/emu/bus/vectrex/slot.c b/src/emu/bus/vectrex/slot.c
new file mode 100644
index 00000000000..b44da803f74
--- /dev/null
+++ b/src/emu/bus/vectrex/slot.c
@@ -0,0 +1,280 @@
+/***********************************************************************************************************
+
+ GCE Vectrex cart emulation
+ (through slot devices)
+
+ ***********************************************************************************************************/
+
+
+#include "emu.h"
+#include "slot.h"
+
+//**************************************************************************
+// GLOBAL VARIABLES
+//**************************************************************************
+
+const device_type VECTREX_CART_SLOT = &device_creator<vectrex_cart_slot_device>;
+
+//**************************************************************************
+// Vectrex Cartridges Interface
+//**************************************************************************
+
+//-------------------------------------------------
+// device_vectrex_cart_interface - constructor
+//-------------------------------------------------
+
+device_vectrex_cart_interface::device_vectrex_cart_interface(const machine_config &mconfig, device_t &device)
+ : device_slot_card_interface(mconfig, device),
+ m_rom(NULL),
+ m_rom_size(0)
+{
+}
+
+
+//-------------------------------------------------
+// ~device_vectrex_cart_interface - destructor
+//-------------------------------------------------
+
+device_vectrex_cart_interface::~device_vectrex_cart_interface()
+{
+}
+
+//-------------------------------------------------
+// rom_alloc - alloc the space for the cart
+//-------------------------------------------------
+
+void device_vectrex_cart_interface::rom_alloc(UINT32 size, const char *tag)
+{
+ if (m_rom == NULL)
+ {
+ astring tempstring(tag);
+ tempstring.cat(VECSLOT_ROM_REGION_TAG);
+ m_rom = device().machine().memory().region_alloc(tempstring, size, 1, ENDIANNESS_LITTLE)->base();
+ m_rom_size = size;
+ }
+}
+
+
+//**************************************************************************
+// LIVE DEVICE
+//**************************************************************************
+
+//-------------------------------------------------
+// vectrex_cart_slot_device - constructor
+//-------------------------------------------------
+vectrex_cart_slot_device::vectrex_cart_slot_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) :
+ device_t(mconfig, VECTREX_CART_SLOT, "GCE Vectrex Cartridge Slot", tag, owner, clock, "vectrex_cart_slot", __FILE__),
+ device_image_interface(mconfig, *this),
+ device_slot_interface(mconfig, *this),
+ m_type(VECTREX_STD),
+ m_vec3d(VEC3D_NONE)
+{
+}
+
+
+//-------------------------------------------------
+// vectrex_cart_slot_device - destructor
+//-------------------------------------------------
+
+vectrex_cart_slot_device::~vectrex_cart_slot_device()
+{
+}
+
+//-------------------------------------------------
+// device_start - device-specific startup
+//-------------------------------------------------
+
+void vectrex_cart_slot_device::device_start()
+{
+ m_cart = dynamic_cast<device_vectrex_cart_interface *>(get_card_device());
+}
+
+//-------------------------------------------------
+// device_config_complete - perform any
+// operations now that the configuration is
+// complete
+//-------------------------------------------------
+
+void vectrex_cart_slot_device::device_config_complete()
+{
+ // set brief and instance name
+ update_names();
+}
+
+
+//-------------------------------------------------
+// Vectrex PCB
+//-------------------------------------------------
+
+struct vectrex_slot
+{
+ int pcb_id;
+ const char *slot_option;
+};
+
+// Here, we take the feature attribute from .xml (i.e. the PCB name) and we assign a unique ID to it
+static const vectrex_slot slot_list[] =
+{
+ { VECTREX_STD, "vec_rom" },
+ { VECTREX_64K, "vec_rom64k" },
+ { VECTREX_SRAM, "vec_sram" }
+};
+
+#if 0
+static int vectrex_get_pcb_id(const char *slot)
+{
+ for (int i = 0; i < ARRAY_LENGTH(slot_list); i++)
+ {
+ if (!core_stricmp(slot_list[i].slot_option, slot))
+ return slot_list[i].pcb_id;
+ }
+
+ return 0;
+}
+#endif
+
+static const char *vectrex_get_slot(int type)
+{
+ for (int i = 0; i < ARRAY_LENGTH(slot_list); i++)
+ {
+ if (slot_list[i].pcb_id == type)
+ return slot_list[i].slot_option;
+ }
+
+ return "vec_rom";
+}
+
+/*-------------------------------------------------
+ call load
+ -------------------------------------------------*/
+
+bool vectrex_cart_slot_device::call_load()
+{
+ if (m_cart)
+ {
+ UINT32 size = (software_entry() == NULL) ? length() : get_software_region_length("rom");
+ UINT8 *ROM;
+
+ if (size > 0x10000)
+ {
+ seterror(IMAGE_ERROR_UNSPECIFIED, "Unsupported cartridge size");
+ return IMAGE_INIT_FAIL;
+ }
+
+ m_cart->rom_alloc((size < 0x1000) ? 0x1000 : size, tag());
+ ROM = m_cart->get_rom_base();
+
+ if (software_entry() == NULL)
+ fread(ROM, size);
+ else
+ memcpy(ROM, get_software_region("rom"), size);
+
+ // Verify the file is accepted by the Vectrex bios
+ if (memcmp(ROM, "g GCE", 5))
+ {
+ seterror(IMAGE_ERROR_UNSPECIFIED, "Invalid image");
+ return IMAGE_INIT_FAIL;
+ }
+
+ // determine type
+ m_type = VECTREX_STD;
+ if (!memcmp(ROM + 0x06, "SRAM", 4))
+ m_type = VECTREX_SRAM;
+ if (size > 0x8000)
+ m_type = VECTREX_64K;
+
+ //printf("Type: %s\n", vectrex_get_slot(m_type));
+
+ // determine 3D setup (to help video setup at machine_start)
+ if (!memcmp(ROM + 0x11, "NARROW", 6) && (ROM[0x39] == 0x0c))
+ m_vec3d = VEC3D_NARROW;
+
+ if (!memcmp(ROM + 0x11, "CRAZY COASTER", 13))
+ m_vec3d = VEC3D_CCOAST;
+
+ if (!memcmp(ROM + 0x11, "3D MINE STORM", 13))
+ m_vec3d = VEC3D_MINEST;
+
+ return IMAGE_INIT_PASS;
+ }
+
+ return IMAGE_INIT_PASS;
+}
+
+
+/*-------------------------------------------------
+ call softlist load
+ -------------------------------------------------*/
+
+bool vectrex_cart_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 vectrex_cart_slot_device::get_default_card_software(astring &result)
+{
+ if (open_image_file(mconfig().options()))
+ {
+ const char *slot_string = "vec_rom";
+ UINT32 size = core_fsize(m_file);
+ dynamic_buffer rom(size);
+ int type = VECTREX_STD;
+
+ core_fread(m_file, rom, size);
+
+ if (!memcmp(rom + 0x06, "SRAM", 4))
+ type = VECTREX_SRAM;
+ if (size > 0x8000)
+ type = VECTREX_64K;
+
+ slot_string = vectrex_get_slot(type);
+
+ //printf("type: %s\n", slot_string);
+ clear();
+
+ result.cpy(slot_string);
+ return;
+ }
+
+ software_get_default_slot(result, "vec_rom");
+}
+
+/*-------------------------------------------------
+ read_rom
+ -------------------------------------------------*/
+
+READ8_MEMBER(vectrex_cart_slot_device::read_rom)
+{
+ if (m_cart)
+ return m_cart->read_rom(space, offset);
+ else
+ return 0xff;
+}
+
+/*-------------------------------------------------
+ write_ram
+ -------------------------------------------------*/
+
+WRITE8_MEMBER(vectrex_cart_slot_device::write_ram)
+{
+ if (m_cart)
+ m_cart->write_ram(space, offset, data);
+}
+
+/*-------------------------------------------------
+ write_bank
+ -------------------------------------------------*/
+
+WRITE8_MEMBER(vectrex_cart_slot_device::write_bank)
+{
+ if (m_cart)
+ m_cart->write_bank(space, offset, data);
+}
+
+