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Diffstat (limited to 'src/devices/bus/wswan/slot.cpp')
-rw-r--r--src/devices/bus/wswan/slot.cpp125
1 files changed, 57 insertions, 68 deletions
diff --git a/src/devices/bus/wswan/slot.cpp b/src/devices/bus/wswan/slot.cpp
index fd0c8cdc9fa..7cb338e2cc9 100644
--- a/src/devices/bus/wswan/slot.cpp
+++ b/src/devices/bus/wswan/slot.cpp
@@ -29,9 +29,9 @@ device_ws_cart_interface::device_ws_cart_interface(const machine_config &mconfig
device_interface(device, "wswancart"),
m_rom(nullptr),
m_rom_size(0),
+ m_nvram_size(0),
m_bank_mask(0),
- m_has_rtc(false),
- m_is_rotated(false)
+ m_has_rtc(false)
{
}
@@ -48,11 +48,11 @@ device_ws_cart_interface::~device_ws_cart_interface()
// rom_alloc - alloc the space for the cart
//-------------------------------------------------
-void device_ws_cart_interface::rom_alloc(uint32_t size, const char *tag)
+void device_ws_cart_interface::rom_alloc(u32 size, const char *tag)
{
if (m_rom == nullptr)
{
- m_rom = device().machine().memory().region_alloc(std::string(tag).append(WSSLOT_ROM_REGION_TAG).c_str(), size, 1, ENDIANNESS_LITTLE)->base();
+ m_rom = (u16 *)device().machine().memory().region_alloc(std::string(tag).append(WSSLOT_ROM_REGION_TAG).c_str(), size, 2, ENDIANNESS_LITTLE)->base();
m_rom_size = size;
m_bank_mask = ((m_rom_size >> 16) - 1);
}
@@ -63,8 +63,9 @@ void device_ws_cart_interface::rom_alloc(uint32_t size, const char *tag)
// nvram_alloc - alloc the space for the ram
//-------------------------------------------------
-void device_ws_cart_interface::nvram_alloc(uint32_t size)
+void device_ws_cart_interface::nvram_alloc(u32 size)
{
+ m_nvram_size = size;
m_nvram.resize(size);
}
@@ -76,7 +77,7 @@ void device_ws_cart_interface::nvram_alloc(uint32_t size)
//-------------------------------------------------
// ws_cart_slot_device - constructor
//-------------------------------------------------
-ws_cart_slot_device::ws_cart_slot_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) :
+ws_cart_slot_device::ws_cart_slot_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock) :
device_t(mconfig, WS_CART_SLOT, tag, owner, clock),
device_image_interface(mconfig, *this),
device_single_card_slot_interface<device_ws_cart_interface>(mconfig, *this),
@@ -119,7 +120,8 @@ static const ws_slot slot_list[] =
{
{ WS_STD, "ws_rom" },
{ WS_SRAM, "ws_sram" },
- { WS_EEPROM, "ws_eeprom" }
+ { WS_EEPROM, "ws_eeprom" },
+ { WWITCH, "wwitch"}
};
static int ws_get_pcb_id(const char *slot)
@@ -153,9 +155,9 @@ image_init_result ws_cart_slot_device::call_load()
{
if (m_cart)
{
- uint8_t *ROM;
- uint32_t size = !loaded_through_softlist() ? length() : get_software_region_length("rom");
- uint32_t nvram_size = 0;
+ u16 *ROM;
+ u32 size = !loaded_through_softlist() ? length() : get_software_region_length("rom");
+ u32 nvram_size = 0;
m_cart->rom_alloc(size, tag());
ROM = m_cart->get_rom_base();
@@ -167,14 +169,11 @@ image_init_result ws_cart_slot_device::call_load()
if (!loaded_through_softlist())
{
- int chunks = size / 0x10000;
// get cart type and nvram length
m_type = get_cart_type(ROM, size, nvram_size);
- if (ROM[(chunks - 1) * 0x10000 + 0xfffd])
+ if (ROM[(size >> 1) - 2] & 0xff00)
m_cart->set_has_rtc(true);
- if (ROM[(chunks - 1) * 0x10000 + 0xfffc] & 0x01)
- m_cart->set_is_rotated(true);
}
else
{
@@ -182,7 +181,7 @@ image_init_result ws_cart_slot_device::call_load()
if (pcb_name)
m_type = ws_get_pcb_id(pcb_name);
- if (m_type == WS_SRAM)
+ if (m_type == WS_SRAM || m_type == WWITCH)
nvram_size = get_software_region_length("sram");
if (m_type == WS_EEPROM)
nvram_size = get_software_region_length("eeprom");
@@ -192,15 +191,8 @@ image_init_result ws_cart_slot_device::call_load()
if (!core_stricmp(get_feature("rtc"), "yes"))
m_cart->set_has_rtc(true);
}
- if (get_feature("rotated"))
- {
- if (!core_stricmp(get_feature("rotated"), "yes"))
- m_cart->set_is_rotated(true);
- }
}
- //printf("Type: %s\n", ws_get_slot(m_type));
-
if (nvram_size)
{
// allocate NVRAM
@@ -230,12 +222,11 @@ void ws_cart_slot_device::call_unload()
get cart type from cart file
-------------------------------------------------*/
-int ws_cart_slot_device::get_cart_type(const uint8_t *ROM, uint32_t len, uint32_t &nvram_len) const
+int ws_cart_slot_device::get_cart_type(const u16 *ROM, u32 len, u32 &nvram_len) const
{
- int chunks = len / 0x10000;
int type = WS_STD;
- switch (ROM[(chunks - 1) * 0x10000 + 0xfffb])
+ switch (ROM[(len >> 1) - 3] >> 8)
{
case 0x00:
break;
@@ -272,8 +263,7 @@ int ws_cart_slot_device::get_cart_type(const uint8_t *ROM, uint32_t len, uint32_
nvram_len = 0x800;
break;
default:
- printf("Unknown RAM size [0x%X]\n", ROM[(chunks - 1) * 0x10000 + 0xfffb]);
- logerror("Unknown RAM size [0x%X]\n", ROM[(chunks - 1) * 0x10000 + 0xfffb]);
+ logerror("Unknown RAM size [0x%X]\n", ROM[(len >> 1) - 3] >> 8);
break;
}
@@ -289,10 +279,10 @@ std::string ws_cart_slot_device::get_default_card_software(get_default_card_soft
if (hook.image_file())
{
const char *slot_string;
- uint32_t size = hook.image_file()->size();
- std::vector<uint8_t> rom(size);
+ u32 size = hook.image_file()->size();
+ std::vector<u16> rom(size);
int type;
- uint32_t nvram;
+ u32 nvram;
hook.image_file()->read(&rom[0], size);
@@ -300,8 +290,6 @@ std::string ws_cart_slot_device::get_default_card_software(get_default_card_soft
type = get_cart_type(&rom[0], size, nvram);
slot_string = ws_get_slot(type);
- //printf("type: %s\n", slot_string);
-
return std::string(slot_string);
}
@@ -312,80 +300,80 @@ std::string ws_cart_slot_device::get_default_card_software(get_default_card_soft
read_rom20
-------------------------------------------------*/
-uint8_t ws_cart_slot_device::read_rom20(offs_t offset)
+u16 ws_cart_slot_device::read_rom20(offs_t offset, u16 mem_mask)
{
if (m_cart)
- return m_cart->read_rom20(offset);
+ return m_cart->read_rom20(offset, mem_mask);
else
- return 0xff;
+ return 0xffff;
}
/*-------------------------------------------------
read_rom30
-------------------------------------------------*/
-uint8_t ws_cart_slot_device::read_rom30(offs_t offset)
+u16 ws_cart_slot_device::read_rom30(offs_t offset, u16 mem_mask)
{
if (m_cart)
- return m_cart->read_rom30(offset);
+ return m_cart->read_rom30(offset, mem_mask);
else
- return 0xff;
+ return 0xffff;
}
/*-------------------------------------------------
read_rom40
-------------------------------------------------*/
-uint8_t ws_cart_slot_device::read_rom40(offs_t offset)
+u16 ws_cart_slot_device::read_rom40(offs_t offset, u16 mem_mask)
{
if (m_cart)
- return m_cart->read_rom40(offset);
+ return m_cart->read_rom40(offset, mem_mask);
else
- return 0xff;
+ return 0xffff;
}
/*-------------------------------------------------
read_ram
-------------------------------------------------*/
-uint8_t ws_cart_slot_device::read_ram(offs_t offset)
+u16 ws_cart_slot_device::read_ram(offs_t offset, u16 mem_mask)
{
if (m_cart)
- return m_cart->read_ram(offset);
+ return m_cart->read_ram(offset, mem_mask);
else
- return 0xff;
+ return 0xffff;
}
/*-------------------------------------------------
write_ram
-------------------------------------------------*/
-void ws_cart_slot_device::write_ram(offs_t offset, uint8_t data)
+void ws_cart_slot_device::write_ram(offs_t offset, u16 data, u16 mem_mask)
{
if (m_cart)
- m_cart->write_ram(offset, data);
+ m_cart->write_ram(offset, data, mem_mask);
}
/*-------------------------------------------------
read_io
-------------------------------------------------*/
-uint8_t ws_cart_slot_device::read_io(offs_t offset)
+u16 ws_cart_slot_device::read_io(offs_t offset, u16 mem_mask)
{
if (m_cart)
- return m_cart->read_io(offset);
+ return m_cart->read_io(offset & 0x07, mem_mask);
else
- return 0xff;
+ return 0xffff;
}
/*-------------------------------------------------
write_io
-------------------------------------------------*/
-void ws_cart_slot_device::write_io(offs_t offset, uint8_t data)
+void ws_cart_slot_device::write_io(offs_t offset, u16 data, u16 mem_mask)
{
if (m_cart)
- m_cart->write_io(offset, data);
+ m_cart->write_io(offset & 0x07, data, mem_mask);
}
@@ -398,36 +386,37 @@ static const char *const sram_str[] = { "none", "64Kbit SRAM", "256Kbit SRAM", "
static const char *const eeprom_str[] = { "none", "1Kbit EEPROM", "16Kbit EEPROM", "Unknown", "Unknown", "8Kbit EEPROM" };
static const char *const romsize_str[] = { "Unknown", "Unknown", "4Mbit", "8Mbit", "16Mbit", "Unknown", "32Mbit", "Unknown", "64Mbit", "128Mbit" };
-void ws_cart_slot_device::internal_header_logging(uint8_t *ROM, uint32_t offs, uint32_t len)
+void ws_cart_slot_device::internal_header_logging(const u16 *ROM, u32 offs, u32 len)
{
- int sum = 0, banks = len / 0x10000;
- uint8_t romsize, ramtype, ramsize;
- romsize = ROM[offs + 0xfffa];
- ramtype = (ROM[offs + 0xfffb] & 0xf0) ? 1 : 0; // 1 = EEPROM, 0 = SRAM
- ramsize = ramtype ? ((ROM[offs + 0xfffb] & 0xf0) >> 4) : (ROM[offs + 0xfffb] & 0x0f);
-
+ const int banks = len / 0x10000;
+ const int words = len >> 1;
+ const u8 romsize = ROM[words - 3] & 0xff;
+ const u8 ramtype = (ROM[words - 3] & 0xf000) ? 1 : 0; // 1 = EEPROM, 0 = SRAM
+ const u8 ramsize = ramtype ? (((ROM[words - 3] >> 8) & 0xf0) >> 4) : ((ROM[words - 3] >> 8) & 0x0f);
+ u16 sum = 0;
logerror( "ROM DETAILS\n" );
logerror( "===========\n\n" );
- logerror("\tDeveloper ID: %X\n", ROM[offs + 0xfff6]);
- logerror("\tMinimum system: %s\n", ROM[offs + 0xfff7] ? "WonderSwan Color" : "WonderSwan");
- logerror("\tCart ID: %X\n", ROM[offs + 0xfff8]);
+ logerror("\tDeveloper ID: %X\n", ROM[words - 5] & 0xff);
+ logerror("\tMinimum system: %s\n", ROM[words - 5] & 0xff00 ? "WonderSwan Color" : "WonderSwan");
+ logerror("\tCart ID: %X\n", ROM[words - 4] & 0xff);
logerror("\tROM size: %s\n", romsize_str[romsize]);
if (ramtype)
logerror("\tEEPROM size: %s\n", (ramsize < 6) ? eeprom_str[ramsize] : "Unknown");
else
logerror("\tSRAM size: %s\n", (ramsize < 6) ? sram_str[ramsize] : "Unknown");
- logerror("\tFeatures: %X\n", ROM[offs + 0xfffc]);
- logerror("\tRTC: %s\n", ROM[offs + 0xfffd] ? "yes" : "no");
+ logerror("\tFeatures: %X\n", ROM[words - 2] & 0xff);
+ logerror("\tRTC: %s\n", (ROM[words - 2] & 0xff00) ? "yes" : "no");
for (int i = 0; i < banks; i++)
{
- for (int count = 0; count < 0x10000; count++)
+ for (int count = 0; count < 0x8000; count++)
{
- sum += ROM[(i * 0x10000) + count];
+ sum += ROM[i * 0x8000 + count] & 0xff;
+ sum += ROM[i * 0x8000 + count] >> 8;
}
}
- sum -= ROM[offs + 0xffff];
- sum -= ROM[offs + 0xfffe];
+ sum -= ROM[words - 1] & 0xff;
+ sum -= ROM[words - 1] >> 8;
sum &= 0xffff;
- logerror("\tChecksum: %.2X%.2X (calculated: %04X)\n", ROM[offs + 0xffff], ROM[offs + 0xfffe], sum);
+ logerror("\tChecksum: %04X (calculated: %04X)\n", ROM[words - 1], sum);
}