mirror of
https://github.com/ekeeke/Genesis-Plus-GX.git
synced 2024-11-04 18:05:06 +01:00
.fixed VDP register reset state on SG-1000
.improved SG-1000 default memory mapping .added support for SG-1000 RAM extension adapters (both types) and recent SMS Power dumps using them
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ekeeke31
parent
e47ffcad81
commit
c33273fa02
@ -39,19 +39,22 @@
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#include "shared.h"
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#include "terebi_oekaki.h"
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#define MAPPER_NONE (0)
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#define MAPPER_TEREBI (1)
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#define MAPPER_SEGA (2)
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#define MAPPER_SEGA_X (3)
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#define MAPPER_CODIES (4)
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#define MAPPER_KOREA (5)
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#define MAPPER_KOREA_8K (6)
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#define MAPPER_KOREA_16K (7)
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#define MAPPER_MSX (8)
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#define MAPPER_93C46 (9)
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#define MAPPER_MULTI (10)
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#define MAPPER_NONE (0)
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#define MAPPER_TEREBI (1)
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#define MAPPER_RAM_8K (2)
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#define MAPPER_RAM_8K_EXT1 (3)
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#define MAPPER_RAM_8K_EXT2 (4)
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#define MAPPER_SEGA (5)
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#define MAPPER_SEGA_X (6)
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#define MAPPER_CODIES (7)
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#define MAPPER_KOREA (8)
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#define MAPPER_KOREA_8K (9)
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#define MAPPER_KOREA_16K (10)
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#define MAPPER_MSX (11)
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#define MAPPER_93C46 (12)
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#define MAPPER_MULTI (13)
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#define GAME_DATABASE_CNT (193)
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#define GAME_DATABASE_CNT (208)
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typedef struct
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{
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@ -118,7 +121,7 @@ static const rominfo_t game_list[GAME_DATABASE_CNT] =
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{0xDBE8895C, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_CODIES, SYSTEM_GG, REGION_USA}, /* Micro Machines 2 - Turbo Tournament */
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{0xC1756BEE, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_CODIES, SYSTEM_GG, REGION_USA}, /* Pete Sampras Tennis */
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/* games using Serial EEPROM */
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/* games using serial EEPROM */
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{0x36EBCD6D, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_93C46, SYSTEM_GG, REGION_USA}, /* Majors Pro Baseball */
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{0x3D8D0DD6, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_93C46, SYSTEM_GG, REGION_USA}, /* World Series Baseball [v0] */
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{0xBB38CFD7, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_93C46, SYSTEM_GG, REGION_USA}, /* World Series Baseball [v1] */
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@ -127,13 +130,32 @@ static const rominfo_t game_list[GAME_DATABASE_CNT] =
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/* games using Terebi Oekaki graphic board */
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{0xDD4A661B, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_TEREBI, SYSTEM_SG, REGION_JAPAN_NTSC}, /* Terebi Oekaki */
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/* games requiring JAPANESE region setting */
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/* games using 8K embedded RAM */
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{0x092F29D6, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_RAM_8K, SYSTEM_SG, REGION_JAPAN_NTSC}, /* The Castle (JP) */
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/* games requiring 8K RAM extension adapter */
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{0xCE5648C3, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_RAM_8K_EXT1, SYSTEM_SG, REGION_JAPAN_NTSC}, /* Bomberman Special [DahJee] (TW) */
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{0x223397A1, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_RAM_8K_EXT1, SYSTEM_SG, REGION_JAPAN_NTSC}, /* King's Valley (TW) */
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{0x281D2888, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_RAM_8K_EXT1, SYSTEM_SG, REGION_JAPAN_NTSC}, /* Knightmare (TW) */
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{0x306D5F78, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_RAM_8K_EXT1, SYSTEM_SG, REGION_JAPAN_NTSC}, /* Rally-X [DahJee] (TW) */
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{0x29E047CC, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_RAM_8K_EXT1, SYSTEM_SG, REGION_JAPAN_NTSC}, /* Road Fighter (TW) */
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{0x5CBD1163, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_RAM_8K_EXT1, SYSTEM_SG, REGION_JAPAN_NTSC}, /* Tank Battalion (TW) */
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{0x2E7166D5, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_RAM_8K_EXT1, SYSTEM_SG, REGION_JAPAN_NTSC}, /* The Legend of Kage (TW) */
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{0xC550B4F0, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_RAM_8K_EXT1, SYSTEM_SG, REGION_JAPAN_NTSC}, /* TwinBee (TW) */
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{0xFC87463C, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_RAM_8K_EXT1, SYSTEM_SG, REGION_JAPAN_NTSC}, /* Yie Ar Kung-Fu II (TW) */
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{0x69FC1494, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_RAM_8K_EXT2, SYSTEM_SG, REGION_JAPAN_NTSC}, /* Bomberman Special (TW) */
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{0xFFC4EE3F, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_RAM_8K_EXT2, SYSTEM_SG, REGION_JAPAN_NTSC}, /* Magical Kid Wiz (TW) */
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{0x2E366CCF, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_RAM_8K_EXT2, SYSTEM_SG, REGION_JAPAN_NTSC}, /* The Castle (TW) */
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{0xAAAC12CF, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_RAM_8K_EXT2, SYSTEM_SG, REGION_JAPAN_NTSC}, /* Rally-X (TW) */
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{0xD2EDD329, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_RAM_8K_EXT2, SYSTEM_SG, REGION_JAPAN_NTSC}, /* Road Fighter (TW) */
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/* games requiring Japanese region setting */
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{0x71DEBA5A, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_SEGA, SYSTEM_GG, REGION_JAPAN_NTSC}, /* Pop Breaker */
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{0xC9DD4E5F, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_SEGA, SYSTEM_SMS, REGION_JAPAN_NTSC}, /* Woody Pop (Super Arkanoid) */
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/* games requiring Mark-III hardware (no Memory Control port) */
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{0xBD1CC7DF, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_SEGA, SYSTEM_MARKIII, REGION_JAPAN_NTSC}, /* Super Tetris (K) */
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{0x6D309AC5, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_SEGA, SYSTEM_MARKIII, REGION_JAPAN_NTSC}, /* Power Boggle Boggle (K) */
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{0xBD1CC7DF, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_SEGA, SYSTEM_MARKIII, REGION_JAPAN_NTSC}, /* Super Tetris (KR) */
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{0x6D309AC5, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_SEGA, SYSTEM_MARKIII, REGION_JAPAN_NTSC}, /* Power Boggle Boggle (KR) */
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/* games requiring random RAM pattern initialization */
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{0x08BF3DE3, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_NONE, SYSTEM_MARKIII, REGION_JAPAN_NTSC}, /* Alibaba and 40 Thieves (KR) */
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@ -761,15 +783,27 @@ static void mapper_reset(void)
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/* reset internal RAM mapping */
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if (system_hw == SYSTEM_SG)
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{
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/* $C000-$FFFF mapped to 2k mirrored RAM */
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for (i = 0x30; i < 0x40; i++)
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/* 8k RAM extension adapter (type B) */
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if (cart_rom.mapper == MAPPER_RAM_8K_EXT2)
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{
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z80_readmap[i] = z80_writemap[i] = &work_ram[(i & 0x01) << 10];
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/* $C000-$FFFF mapped to 8k extra RAM (mirrored) */
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for (i = 0x30; i < 0x40; i++)
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{
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z80_readmap[i] = z80_writemap[i] = &work_ram[(i & 0x07) << 10];
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}
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}
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else
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{
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/* $C000-$FFFF mapped to 2k mirrored RAM */
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for (i = 0x30; i < 0x40; i++)
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{
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z80_readmap[i] = z80_writemap[i] = &work_ram[(i & 0x01) << 10];
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}
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}
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}
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else
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{
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/* $C000-$FFFF mapped to 8k mirrored RAM */
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/* $C000-$FFFF mapped to 8k internal RAM (mirrored) */
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for (i = 0x30; i < 0x40; i++)
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{
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z80_readmap[i] = z80_writemap[i] = &work_ram[(i & 0x07) << 10];
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@ -792,44 +826,43 @@ static void mapper_reset(void)
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return;
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}
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/* $0000-$3FFF mapped to ROM (first 16k) by default */
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for (i = 0x00; i < 0x20; i++)
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/* reset default $0000-$BFFF mapping */
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if (slot.mapper < MAPPER_SEGA)
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{
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z80_readmap[i] = &slot.rom[i << 10];
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z80_writemap[i] = cart.rom + 0x510000; /* unused area */
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}
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/* reset default $4000-$BFFF mapping (32k) */
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if ((slot.mapper == MAPPER_NONE) || (slot.mapper == MAPPER_TEREBI))
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{
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/* $4000-$7FFF mapped to ROM (16k) */
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for (i = 0x00; i < 0x20; i++)
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/* $0000-$BFFF mapped to ROM (48k) */
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for (i = 0x00; i < 0x30; i++)
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{
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z80_readmap[i] = &slot.rom[i << 10];
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z80_writemap[i] = cart.rom + 0x510000; /* unused area */
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}
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/* enable 16k external RAM by default with 32k ROM (The Castle) */
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if (slot.pages > 0x20)
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/* 8k external RAM extension (SG-1000) */
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if (slot.mapper == MAPPER_RAM_8K)
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{
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/* $8000-$BFFF mapped to ROM (16k) */
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/* $8000-$BFFF mapped to cartridge extra RAM (8k mirrored) */
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for (i = 0x20; i < 0x30; i++)
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{
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z80_readmap[i] = &slot.rom[i << 10];
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z80_writemap[i] = cart.rom + 0x510000; /* unused area */
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z80_readmap[i] = z80_writemap[i] = &work_ram[0x2000 + ((i & 0x07) << 10)];
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}
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}
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else
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else if (slot.mapper == MAPPER_RAM_8K_EXT1)
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{
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/* $8000-$BFFF mapped to external RAM (16k) */
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for (i = 0x20; i < 0x30; i++)
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/* $2000-$3FFF mapped to RAM extension adapter (8k) */
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for (i = 0x08; i < 0x10; i++)
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{
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z80_readmap[i] = z80_writemap[i] = &sram.sram[(i & 0x0F) << 10];
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z80_readmap[i] = z80_writemap[i] = &work_ram[0x2000 + ((i & 0x07) << 10)];
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}
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}
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}
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else
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{
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/* $0000-$3FFF mapped to ROM (first 16k) by default */
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for (i = 0x00; i < 0x10; i++)
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{
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z80_readmap[i] = &slot.rom[i << 10];
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z80_writemap[i] = cart.rom + 0x510000; /* unused area */
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}
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/* ROM paging */
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if ((slot.mapper == MAPPER_MSX) || (slot.mapper == MAPPER_KOREA_8K))
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{
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@ -851,6 +884,9 @@ static void mapper_reset(void)
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switch (slot.mapper)
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{
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case MAPPER_NONE:
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case MAPPER_RAM_8K:
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case MAPPER_RAM_8K_EXT1:
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case MAPPER_RAM_8K_EXT2:
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z80_readmem = read_mapper_default;
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z80_writemem = write_mapper_none;
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break;
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@ -342,6 +342,9 @@ void vdp_reset(void)
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if (system_hw == SYSTEM_SG)
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{
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/* 16k address decoding by default (Magical Kid Wiz) */
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vdp_reg_w(1, 0x80, 0);
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/* no H-INT on TMS9918 */
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vdp_reg_w(10, 0xFF, 0);
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}
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