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(MESS) gameboy.c: Added support for the mapper used by Sonic 3D Blast 5 pirate. [Wilbert Pol]

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This commit is contained in:
Wilbert Pol 2012-10-10 18:47:25 +00:00
parent 1407455dd6
commit a6b177431c
3 changed files with 20 additions and 3 deletions
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4
hash/gameboy.xml
View File

@ -23153,12 +23153,12 @@
</part>
</software>
<software name="sonic3d5" supported="no">
<software name="sonic3d5">
<description>Sonic 3D Blast 5 (Chi)</description>
<year>1998</year>
<publisher>Yong Yong</publisher>
<part name="cart" interface="gameboy_cart">
<feature name="mapper" value="unknown" />
<feature name="mapper" value="YongYong" />
<dataarea name="rom" size="262144">
<rom name="sonic 3d blast 5 (unl).bin" size="262144" crc="5fed0068" sha1="1eb403ee2550106cbb2e3e1d0715b7c9bc07d6be" offset="000000" />
</dataarea>

1
src/mess/includes/gb.h
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@ -205,6 +205,7 @@ public:
DECLARE_WRITE8_MEMBER(gb_rom_bank_select_mbc1_kor);
DECLARE_WRITE8_MEMBER(gb_ram_bank_select_mbc1_kor);
DECLARE_WRITE8_MEMBER(gb_mem_mode_select_mbc1_kor);
DECLARE_WRITE8_MEMBER(gb_rom_bank_yongyong_2000);
DECLARE_WRITE8_MEMBER(gb_io_w);
DECLARE_WRITE8_MEMBER(gb_io2_w);
DECLARE_WRITE8_MEMBER(sgb_io_w);

18
src/mess/machine/gb.c
View File

@ -4,6 +4,10 @@
Machine file to handle emulation of the Nintendo Game Boy.
TODO:
- YongYong mapper:
- During start there are 2 writes to 5000 and 5003, it is still unknown what these do.
Changes:
13/2/2002 AK - MBC2 and MBC3 support and added NVRAM support.
@ -58,6 +62,7 @@ enum {
MBC_MBC7, /* ?? ROM, ?? RAM */
MBC_WISDOM, /* ?? ROM, ?? RAM - Wisdom tree controller */
MBC_MBC1_KOR, /* 1MB ROM, ?? RAM - Korean MBC1 variant */
MBC_YONGYONG, /* ?? ROM, ?? RAM - Appears in Sonic 3D Blast 5 pirate */
MBC_MEGADUCK, /* MEGADUCK style banking */
MBC_UNKNOWN, /* Unknown mapper */
};
@ -231,6 +236,10 @@ static void gb_init(running_machine &machine)
space.install_write_handler( 0x4000, 0x5fff, write8_delegate(FUNC(gb_state::gb_ram_bank_select_mbc1_kor),state) );
space.install_write_handler( 0x6000, 0x7fff, write8_delegate(FUNC(gb_state::gb_mem_mode_select_mbc1_kor),state) );
break;
case MBC_YONGYONG:
space.install_write_handler( 0x2000, 0x2000, write8_delegate(FUNC(gb_state::gb_rom_bank_yongyong_2000),state) );
//space.install_write_handler( 0x5000, 0x5003, write8_delegate(FUNC(gb_state::gb_rom_back_yongyong_5000),state) );
break;
case MBC_MEGADUCK:
space.install_write_handler( 0x0001, 0x0001, write8_delegate(FUNC(gb_state::megaduck_rom_bank_select_type1),state) );
@ -773,6 +782,12 @@ WRITE8_MEMBER(gb_state::gb_mem_mode_select_mbc1_kor)
gb_set_mbc1_kor_banks(machine());
}
WRITE8_MEMBER(gb_state::gb_rom_bank_yongyong_2000)
{
m_ROMBank = data;
gb_rom16_4000( machine(), m_ROMMap[m_ROMBank] );
}
WRITE8_MEMBER(gb_state::gb_io_w)
{
static const UINT8 timer_shifts[4] = {10, 4, 6, 8};
@ -1648,6 +1663,7 @@ DEVICE_IMAGE_LOAD(gb_cart)
{ "MBC7", MBC_MBC7 },
{ "WISDOM", MBC_WISDOM },
{ "MBC1_KOR", MBC_MBC1_KOR },
{ "YONGYONG", MBC_YONGYONG },
};
for (int i = 0; i < ARRAY_LENGTH(mapper_types) && state->m_MBCType == MBC_UNKNOWN; i++)
@ -1739,10 +1755,10 @@ DEVICE_IMAGE_LOAD(gb_cart)
case 0x20: state->m_MBCType = MBC_MBC6; state->m_CartType = SRAM; break;
case 0x22: state->m_MBCType = MBC_MBC7; state->m_CartType = SRAM | BATTERY; break;
case 0xBE: state->m_MBCType = MBC_NONE; state->m_CartType = 0; break; /* used in Flash2Advance GB Bridge boot program */
case 0xEA: state->m_MBCType = MBC_YONGYONG; state->m_CartType = 0; break; /* Found in Sonic 3D Blast 5 pirate */
case 0xFD: state->m_MBCType = MBC_TAMA5; state->m_CartType = 0 /*RTC | BATTERY?*/; break;
case 0xFE: state->m_MBCType = MBC_HUC3; state->m_CartType = 0; break;
case 0xFF: state->m_MBCType = MBC_HUC1; state->m_CartType = 0; break;
default: state->m_MBCType = MBC_UNKNOWN; state->m_CartType = UNKNOWN; break;
}
/* Check whether we're dealing with a (possible) Wisdom Tree game here */