mirror of
https://github.com/holub/mame
synced 2025-04-23 08:49:55 +03:00
(MESS) a78_slot: added logging of the A78 header, fixed identification of
some games when loaded from fullpath, and hopefully fixed crash when loading carts from the internal UI. nw.
This commit is contained in:
Fabio Priuli
parent
d19ac463a0
commit
c658d6e55e
@ -39,7 +39,9 @@ const device_type A78_CART_SLOT = &device_creator<a78_cart_slot_device>;
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//-------------------------------------------------
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device_a78_cart_interface::device_a78_cart_interface (const machine_config &mconfig, device_t &device)
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: device_slot_card_interface(mconfig, device)
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: device_slot_card_interface(mconfig, device),
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m_base_rom(0x8000),
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m_bank_mask(0)
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{
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}
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@ -60,15 +62,14 @@ void device_a78_cart_interface::rom_alloc(UINT32 size)
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{
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if (m_rom == NULL)
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{
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// allocate rom
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m_rom.resize(size);
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// setup other helpers
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if ((size / 0x4000) & 1) // compensate for SuperGame carts with 9 x 16K banks (to my knowledge no other cart has m_bank_mask != power of 2)
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m_bank_mask = (size / 0x4000) - 2;
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else
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m_bank_mask = (size / 0x4000) - 1;
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// the rom is mapped to the top of the memory area
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// so we store the starting point of data to simplify
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// the access handling
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@ -207,96 +208,97 @@ static const char *a78_get_slot(int type)
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bool a78_cart_slot_device::call_load()
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{
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UINT8 *ROM;
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UINT32 len;
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if (software_entry() != NULL)
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if (m_cart)
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{
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const char *pcb_name;
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len = get_software_region_length("rom");
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m_cart->rom_alloc(len);
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ROM = m_cart->get_rom_base();
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memcpy(ROM, get_software_region("rom"), len);
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if ((pcb_name = get_feature("slot")) != NULL)
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m_type = a78_get_pcb_id(pcb_name);
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else
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m_type = A78_TYPE0;
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}
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else
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{
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// Load and check the header
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char head[128];
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fread(head, 128);
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UINT8 *ROM;
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UINT32 len;
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if (verify_header((char *)head) == IMAGE_VERIFY_FAIL)
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return IMAGE_INIT_FAIL;
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len = (head[49] << 24) |(head[50] << 16) |(head[51] << 8) | head[52];
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if (len + 128 > length())
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if (software_entry() != NULL)
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{
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logerror("Invalid length in the header. The game might be corrupted.\n");
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len = length() - 128;
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}
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switch ((head[53] << 8) | head[54])
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{
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case 0x0000:
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const char *pcb_name;
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len = get_software_region_length("rom");
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m_cart->rom_alloc(len);
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ROM = m_cart->get_rom_base();
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memcpy(ROM, get_software_region("rom"), len);
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if ((pcb_name = get_feature("slot")) != NULL)
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m_type = a78_get_pcb_id(pcb_name);
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else
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m_type = A78_TYPE0;
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break;
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case 0x0001:
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m_type = A78_TYPE1;
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break;
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case 0x0002:
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m_type = A78_TYPE2;
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break;
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case 0x0003:
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m_type = A78_TYPE3;
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break;
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case 0x0006:
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m_type = A78_TYPE6;
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break;
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case 0x000a:
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m_type = A78_TYPEA;
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break;
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case 0x000b:
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m_type = A78_TYPEB;
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break;
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case 0x0020:
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m_type = A78_BANKRAM;
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break;
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case 0x0100:
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m_type = A78_ABSOLUTE;
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break;
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case 0x0200:
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m_type = A78_ACTIVISION;
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break;
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}
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logerror("Cart type: %x\n", m_type);
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else
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{
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// Load and check the header
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char head[128];
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fread(head, 128);
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if (verify_header((char *)head) == IMAGE_VERIFY_FAIL)
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return IMAGE_INIT_FAIL;
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len = (head[49] << 24) | (head[50] << 16) | (head[51] << 8) | head[52];
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if (len + 128 > length())
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{
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logerror("Invalid length in the header. The game might be corrupted.\n");
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len = length() - 128;
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}
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switch ((head[53] << 8) | head[54])
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{
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case 0x0000:
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m_type = A78_TYPE0;
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break;
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case 0x0001:
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m_type = A78_TYPE1;
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break;
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case 0x0002:
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m_type = A78_TYPE2;
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break;
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case 0x0003:
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m_type = A78_TYPE3;
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break;
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case 0x0006:
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m_type = A78_TYPE6;
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break;
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case 0x000a:
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m_type = A78_TYPEA;
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break;
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case 0x000b:
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m_type = A78_TYPEB;
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break;
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case 0x0020:
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m_type = A78_BANKRAM;
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break;
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case 0x0100:
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m_type = A78_ABSOLUTE;
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break;
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case 0x0200:
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m_type = A78_ACTIVISION;
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break;
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}
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logerror("Cart type: %x\n", m_type);
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internal_header_logging((UINT8 *)head, length());
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m_cart->rom_alloc(len);
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ROM = m_cart->get_rom_base();
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fread(ROM, len);
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}
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// This field is currently only used for logging
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m_stick_type = head[55];
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//printf("Type: %s\n", a78_get_slot(m_type));
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m_cart->rom_alloc(len);
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ROM = m_cart->get_rom_base();
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fread(ROM, len);
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if (m_type == A78_TYPE6)
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m_cart->ram_alloc(0x4000);
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if (m_type == A78_BANKRAM)
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m_cart->ram_alloc(0x8000);
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if (m_type == A78_XB_BOARD || m_type == A78_XM_BOARD)
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m_cart->ram_alloc(0x20000);
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if (m_type == A78_HSC || m_type == A78_XM_BOARD)
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{
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m_cart->nvram_alloc(0x800);
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battery_load(m_cart->get_nvram_base(), 0x800, 0xff);
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}
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}
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//printf("Type: %s\n", a78_get_slot(m_type));
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if (m_type == A78_TYPE6)
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m_cart->ram_alloc(0x4000);
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if (m_type == A78_BANKRAM)
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m_cart->ram_alloc(0x8000);
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if (m_type == A78_XB_BOARD || m_type == A78_XM_BOARD)
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m_cart->ram_alloc(0x20000);
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if (m_type == A78_HSC || m_type == A78_XM_BOARD)
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{
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m_cart->nvram_alloc(0x800);
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battery_load(m_cart->get_nvram_base(), 0x800, 0xff);
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}
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return IMAGE_INIT_PASS;
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}
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@ -380,7 +382,7 @@ void a78_cart_slot_device::get_default_card_software(astring &result)
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case 0x0003:
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type = A78_TYPE3;
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break;
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case 0x0004:
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case 0x0006:
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type = A78_TYPE6;
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break;
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case 0x000a:
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@ -477,38 +479,113 @@ WRITE8_MEMBER(a78_cart_slot_device::write_40xx)
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}
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/* Header format
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0 Header version - 1 byte
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1..16 "ATARI7800 " - 16 bytes
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17..48 Cart title - 32 bytes
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49..52 data length - 4 bytes
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53..54 cart type - 2 bytes
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bit 0 0x01 - pokey cart
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bit 1 0x02 - supercart bank switched
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bit 2 0x04 - supercart RAM at $4000
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bit 3 0x08 - additional ROM at $4000
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bit 4 0x10 - bank 6 at $4000
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bit 5 0x20 - supercart banked RAM
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bit 8-15 - Special
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0 = Normal cart
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1 = Absolute (F18 Hornet)
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2 = Activision
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55 controller 1 type - 1 byte
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56 controller 2 type - 1 byte
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0 = None
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1 = Joystick
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2 = Light Gun
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57 0 = NTSC/1 = PAL
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100..127 "ACTUAL CART DATA STARTS HERE" - 28 bytes
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Versions:
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Version 0: Initial release
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Version 1: Added PAL/NTSC bit. Added Special cart byte.
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Changed 53 bit 2, added bit 3
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*/
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/*-------------------------------------------------
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A78 header logging
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-------------------------------------------------*/
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// TODO: log all properties from the header
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void a78_cart_slot_device::internal_header_logging(UINT8 *header, UINT32 len)
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{
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char head_title[35];
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UINT32 head_length = (header[49] << 24) | (header[50] << 16) | (header[51] << 8) | header[52];
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UINT16 head_mapper = (header[53] << 8) | header[54];
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UINT8 head_ctrl1 = header[55];
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UINT8 head_ctrl2 = header[56];
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UINT8 head_ispal = header[57];
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astring cart_mapper, ctrl1, ctrl2;
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memcpy(head_title, header + 0x11, 0x20);
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switch (head_mapper)
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{
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case 0x0000:
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cart_mapper.cpy("No Bankswitch");
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break;
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case 0x0001:
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cart_mapper.cpy("No Bankswitch + POKEY");
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break;
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case 0x0002:
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cart_mapper.cpy("SuperCart Bankswitch");
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break;
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case 0x0003:
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cart_mapper.cpy("SuperCart Bankswitch + POKEY");
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break;
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case 0x0006:
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cart_mapper.cpy("SuperCart Bankswitch + RAM");
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break;
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case 0x000a:
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cart_mapper.cpy("SuperCart 9Banks");
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break;
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case 0x000b:
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cart_mapper.cpy("SuperCart XM Compatible");
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break;
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case 0x0020:
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cart_mapper.cpy("SuperCart Bankswitch + 32K RAM");
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break;
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case 0x0100:
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cart_mapper.cpy("Absolute Bankswitch");
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break;
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case 0x0200:
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cart_mapper.cpy("Activision Bankswitch");
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break;
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default:
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cart_mapper.cpy("Unknown mapper");
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break;
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}
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switch (head_ctrl1)
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{
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case 0x00:
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ctrl1.cpy("None");
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break;
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case 0x01:
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ctrl1.cpy("Joystick");
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break;
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case 0x02:
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ctrl1.cpy("Light Gun");
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break;
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default:
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ctrl1.cpy("Unknown controller");
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break;
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}
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switch (head_ctrl2)
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{
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case 0x00:
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ctrl2.cpy("None");
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break;
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case 0x01:
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ctrl2.cpy("Joystick");
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break;
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case 0x02:
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ctrl2.cpy("Light Gun");
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break;
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default:
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ctrl2.cpy("Unknown controller");
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break;
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}
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logerror( "ROM DETAILS\n" );
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logerror( "===========\n\n" );
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logerror( "\tTotal length (with header): 0x%x (%dK + 128b header)\n\nn", len, len/0x400);
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logerror( "HEADER DETAILS\n" );
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logerror( "==============\n\n" );
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logerror( "\tTitle: %.32s\n", head_title);
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logerror( "\tLength: 0x%X [real 0x%X]\n", head_length, len);
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logerror( "\tMapper: %s\n", cart_mapper.cstr());
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logerror( "\t\tPOKEY: %s\n", BIT(head_mapper, 0) ? "Yes" : "No");
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logerror( "\t\tSC Bankswitch: %s\n", BIT(head_mapper, 1) ? "Yes" : "No");
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logerror( "\t\tRAM at $4000: %s\n", BIT(head_mapper, 2) ? "Yes" : "No");
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logerror( "\t\tbank0 at $4000: %s\n", BIT(head_mapper, 3) ? "Yes" : "No");
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logerror( "\t\tbank6 at $4000: %s\n", BIT(head_mapper, 4) ? "Yes" : "No");
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logerror( "\t\tbanked RAM: %s\n", BIT(head_mapper, 5) ? "Yes" : "No");
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logerror( "\t\tSpecial: %s ", (head_mapper & 0xff00) ? "Yes" : "No");
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if (head_mapper & 0xff00)
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{
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logerror( "[%s]\n", (head_mapper & 0xff00) == 0x100 ? "Absolute" :
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(head_mapper & 0xff00) == 0x200 ? "Activision" : "Unknown" );
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}
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else
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logerror( "\n");
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logerror( "\tController 1: 0x%.2X [%s]\n", head_ctrl1, ctrl1.cstr());
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logerror( "\tController 2: 0x%.2X [%s]\n", head_ctrl2, ctrl2.cstr());
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logerror( "\tVideo: %s\n", (head_ispal) ? "PAL" : "NTSC");
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}
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@ -49,11 +49,11 @@ public:
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void ram_alloc(UINT32 size);
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void nvram_alloc(UINT32 size);
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UINT8* get_rom_base() { return m_rom; }
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UINT8* get_ram_base() { return m_ram; }
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UINT8* get_nvram_base() { return m_nvram; }
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UINT32 get_rom_size() { return m_rom.bytes(); }
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UINT32 get_ram_size() { return m_ram.bytes(); }
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UINT32 get_nvram_size() { return m_nvram.bytes(); }
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UINT8* get_ram_base() { return m_ram; }
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UINT8* get_nvram_base() { return m_nvram; }
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UINT32 get_rom_size() { return m_rom.bytes(); }
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UINT32 get_ram_size() { return m_ram.bytes(); }
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UINT32 get_nvram_size() { return m_nvram.bytes(); }
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protected:
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// internal state
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@ -123,6 +123,7 @@ private:
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int m_stick_type;
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int verify_header(char *header);
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void internal_header_logging(UINT8 *header, UINT32 len);
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};
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@ -37,7 +37,8 @@
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TODO:
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- verify what happens when 2 POKEYs are present
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- verify whether high score works fine with XM
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- understand why high score in XM is not written to NVRAM
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- add Yamaha YM2151 when more clear specs are available
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***********************************************************************************************************/
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