The-Homebrew-Cloud/Genesis-Plus-GX
2
0
Fork 0
mirror of https://github.com/ekeeke/Genesis-Plus-GX.git synced 2024-12-29 04:31:49 +01:00
Code Issues Packages Projects Releases Wiki Activity

-added support for 4-Pak All Action (SMS), thanks to Omar Cornut for mapper reverse-engineering

Browse Source
This commit is contained in:
ekeeke31 2012-01-23 21:24:24 +00:00
parent d0ca4f7a06
commit 96452ac75b
1 changed files with 34 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

37
source/cart_hw/sms_cart.c
View File

@ -50,8 +50,9 @@
#define MAPPER_KOREA (5) #define MAPPER_KOREA (5)
#define MAPPER_MSX (6) #define MAPPER_MSX (6)
#define MAPPER_93C46 (7) #define MAPPER_93C46 (7)
#define MAPPER_MULTI (8)
#define GAME_DATABASE_CNT (187) #define GAME_DATABASE_CNT (188)
typedef struct typedef struct
{ {
@ -96,6 +97,7 @@ static const rominfo_t game_list[GAME_DATABASE_CNT] =
{0x18FB98A3, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_KOREA, SYSTEM_SMS, REGION_JAPAN_NTSC}, /* Jang Pung 3 (KR) */ {0x18FB98A3, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_KOREA, SYSTEM_SMS, REGION_JAPAN_NTSC}, /* Jang Pung 3 (KR) */
{0x97D03541, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_KOREA, SYSTEM_SMS, REGION_JAPAN_NTSC}, /* Sangokushi 3 (KR) */ {0x97D03541, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_KOREA, SYSTEM_SMS, REGION_JAPAN_NTSC}, /* Sangokushi 3 (KR) */
{0x67C2F0FF, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_KOREA, SYSTEM_SMS, REGION_JAPAN_NTSC}, /* Super Boy 2 (KR) */ {0x67C2F0FF, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_KOREA, SYSTEM_SMS, REGION_JAPAN_NTSC}, /* Super Boy 2 (KR) */
{0xA67F2A5C, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_MULTI, SYSTEM_SMS, REGION_JAPAN_NTSC}, /* 4-Pak All Action (KR) */
/* games using Codemaster mapper */ /* games using Codemaster mapper */
{0x29822980, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_CODIES, SYSTEM_SMS2, REGION_EUROPE}, /* Cosmic Spacehead */ {0x29822980, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_CODIES, SYSTEM_SMS2, REGION_EUROPE}, /* Cosmic Spacehead */
@ -316,6 +318,7 @@ static void write_mapper_sega(unsigned int address, unsigned char data);
static void write_mapper_codies(unsigned int address, unsigned char data); static void write_mapper_codies(unsigned int address, unsigned char data);
static void write_mapper_korea(unsigned int address, unsigned char data); static void write_mapper_korea(unsigned int address, unsigned char data);
static void write_mapper_msx(unsigned int address, unsigned char data); static void write_mapper_msx(unsigned int address, unsigned char data);
static void write_mapper_multi(unsigned int address, unsigned char data);
static void write_mapper_93c46(unsigned int address, unsigned char data); static void write_mapper_93c46(unsigned int address, unsigned char data);
static void write_mapper_terebi(unsigned int address, unsigned char data); static void write_mapper_terebi(unsigned int address, unsigned char data);
static unsigned char read_mapper_93c46(unsigned int address); static unsigned char read_mapper_93c46(unsigned int address);
@ -857,6 +860,11 @@ static void mapper_reset(void)
z80_writemem = write_mapper_msx; z80_writemem = write_mapper_msx;
break; break;
case MAPPER_MULTI:
z80_readmem = read_mapper_default;
z80_writemem = write_mapper_multi;
break;
case MAPPER_93C46: case MAPPER_93C46:
z80_readmem = read_mapper_93c46; z80_readmem = read_mapper_93c46;
z80_writemem = write_mapper_93c46; z80_writemem = write_mapper_93c46;
@ -998,8 +1006,8 @@ static void mapper_16k_w(int offset, unsigned int data)
case 1: /* cartridge ROM bank (16k) at $0000-$3FFF */ case 1: /* cartridge ROM bank (16k) at $0000-$3FFF */
{ {
/* first 1k is not fixed (CODEMASTER mapper only) */ /* first 1k is not fixed (CODEMASTER or MULTI mappers only) */
if (slot.mapper == MAPPER_CODIES) if ((slot.mapper == MAPPER_CODIES) || (slot.mapper == MAPPER_MULTI))
{ {
z80_readmap[0] = &slot.rom[(page << 14)]; z80_readmap[0] = &slot.rom[(page << 14)];
} }
@ -1112,6 +1120,29 @@ static void write_mapper_codies(unsigned int address, unsigned char data)
z80_writemap[address >> 10][address & 0x03FF] = data; z80_writemap[address >> 10][address & 0x03FF] = data;
} }
static void write_mapper_multi(unsigned int address, unsigned char data)
{
if (address == 0x3FFE)
{
mapper_16k_w(1,data);
return;
}
if (address == 0x7FFF)
{
mapper_16k_w(2,data);
return;
}
if (address == 0xBFFF)
{
mapper_16k_w(3,(slot.fcr[1] & 0x30) + data);
return;
}
z80_writemap[address >> 10][address & 0x03FF] = data;
}
static void write_mapper_korea(unsigned int address, unsigned char data) static void write_mapper_korea(unsigned int address, unsigned char data)
{ {
if (address == 0xA000) if (address == 0xA000)