mirror of
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[Core/MS] improved Z80 address decoding on Japanese Master System I/O chip (315-5297)
[Core/GG] modified VDP register 10 state on reset (fixes Terminator 2: Judgment Day) [Core/SG] added support for SG-1000 II clone hardware (2KB RAM + integrated VDP/PSG chip 315-5066)
This commit is contained in:
EkeEke
parent
e9fc71ec4f
commit
10e5a924df
@ -2,7 +2,7 @@
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* Genesis Plus
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* SG-1000, Master System & Game Gear cartridge hardware support
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*
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* Copyright (C) 2007-2013 Eke-Eke (Genesis Plus GX)
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* Copyright (C) 2007-2014 Eke-Eke (Genesis Plus GX)
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*
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* Redistribution and use of this code or any derivative works are permitted
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* provided that the following conditions are met:
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@ -42,9 +42,9 @@
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#define MAPPER_NONE (0x00)
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#define MAPPER_TEREBI (0x01)
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#define MAPPER_RAM_8K_EXT1 (0x02)
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#define MAPPER_RAM_8K_EXT2 (0x03)
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#define MAPPER_OMV (0x04)
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#define MAPPER_RAM_2K (0x02)
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#define MAPPER_RAM_8K_EXT1 (0x03)
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#define MAPPER_RAM_8K_EXT2 (0x04)
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#define MAPPER_SEGA (0x10)
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#define MAPPER_SEGA_X (0x11)
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#define MAPPER_93C46 (0x12)
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@ -56,8 +56,6 @@
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#define MAPPER_MSX (0x21)
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#define MAPPER_MSX_NEMESIS (0x22)
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#define GAME_DATABASE_CNT (214)
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typedef struct
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{
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uint32 crc;
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@ -76,7 +74,7 @@ typedef struct
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uint8 pages;
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} romhw_t;
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static const rominfo_t game_list[GAME_DATABASE_CNT] =
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static const rominfo_t game_list[] =
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{
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/* program requiring Mega Drive VDP (Mode 5) */
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{0x47FA618D, 0, 1, SYSTEM_MS_GAMEPAD, MAPPER_SEGA, SYSTEM_PBC, REGION_USA}, /* Charles MacDonald's Mode 5 Demo Program */
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@ -91,8 +89,6 @@ static const rominfo_t game_list[GAME_DATABASE_CNT] =
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{0x23BAC434, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_SEGA_X, SYSTEM_GG, REGION_USA}, /* Shining Force Gaiden - Final Conflict (JP) [T-Eng] */
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/* games using various Korean mappers */
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{0x17AB6883, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_NONE, SYSTEM_SMS, REGION_JAPAN_NTSC}, /* FA Tetris (KR) */
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{0x61E8806F, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_NONE, SYSTEM_SMS, REGION_JAPAN_NTSC}, /* Flash Point (KR) */
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{0x445525E2, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_MSX, SYSTEM_SMS, REGION_JAPAN_NTSC}, /* Penguin Adventure (KR) */
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{0x83F0EEDE, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_MSX, SYSTEM_SMS, REGION_JAPAN_NTSC}, /* Street Master (KR) */
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{0xA05258F5, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_MSX, SYSTEM_SMS, REGION_JAPAN_NTSC}, /* Won-Si-In (KR) */
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@ -106,7 +102,6 @@ static const rominfo_t game_list[GAME_DATABASE_CNT] =
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{0x89B79E77, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_KOREA, SYSTEM_SMS, REGION_JAPAN_NTSC}, /* Dodgeball King (KR) */
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{0x18FB98A3, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_KOREA, SYSTEM_SMS, REGION_JAPAN_NTSC}, /* Jang Pung 3 (KR) */
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{0x97D03541, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_KOREA, SYSTEM_SMS, REGION_JAPAN_NTSC}, /* Sangokushi 3 (KR) */
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{0x67C2F0FF, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_KOREA, SYSTEM_SMS, REGION_JAPAN_NTSC}, /* Super Boy 2 (KR) */
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{0x192949D5, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_KOREA_8K, SYSTEM_SMS, REGION_JAPAN_NTSC}, /* Janggun-ui Adeul (KR) */
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{0x9FA727A0, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_KOREA_16K, SYSTEM_GGMS, REGION_USA}, /* Street Hero [Proto 0] [SMS-GG] (US) */
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{0xFB481971, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_KOREA_16K, SYSTEM_GGMS, REGION_USA}, /* Street Hero [Proto 1] [SMS-GG] (US) */
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@ -116,18 +111,18 @@ static const rominfo_t game_list[GAME_DATABASE_CNT] =
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{0x8813514B, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_CODIES, SYSTEM_SMS2, REGION_EUROPE}, /* Excellent Dizzy Collection, The [Proto] */
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{0xB9664AE1, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_CODIES, SYSTEM_SMS2, REGION_EUROPE}, /* Fantastic Dizzy */
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{0xA577CE46, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_CODIES, SYSTEM_SMS2, REGION_EUROPE}, /* Micro Machines */
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{0xEA5C3A6F, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_CODIES, SYSTEM_SMS2, REGION_USA}, /* Dinobasher - Starring Bignose the Caveman [Proto] */
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{0xAA140C9C, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_CODIES, SYSTEM_GGMS, REGION_USA}, /* Excellent Dizzy Collection, The [SMS-GG] */
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{0xC888222B, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_CODIES, SYSTEM_GGMS, REGION_USA}, /* Fantastic Dizzy [SMS-GG] */
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{0x76C5BDFB, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_CODIES, SYSTEM_GGMS, REGION_USA}, /* Jang Pung 2 [SMS-GG] */
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{0x6CAA625B, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_CODIES, SYSTEM_GG, REGION_USA}, /* Cosmic Spacehead [GG]*/
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{0x152F0DCC, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_CODIES, SYSTEM_GG, REGION_USA}, /* Drop Zone" */
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{0x5E53C7F7, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_CODIES, SYSTEM_GG, REGION_USA}, /* Ernie Els Golf */
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{0xD9A7F170, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_CODIES, SYSTEM_GG, REGION_USA}, /* Man Overboard! */
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{0xF7C524F6, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_CODIES, SYSTEM_GG, REGION_USA}, /* Micro Machines [GG] */
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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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{0x72981057, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_CODIES, SYSTEM_GG, REGION_USA}, /* CJ Elephant Fugitive */
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{0xEA5C3A6F, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_CODIES, SYSTEM_SMS2, REGION_USA}, /* Dinobasher - Starring Bignose the Caveman [Proto] */
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{0xAA140C9C, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_CODIES, SYSTEM_GGMS, REGION_USA}, /* Excellent Dizzy Collection, The [SMS-GG] */
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{0xC888222B, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_CODIES, SYSTEM_GGMS, REGION_USA}, /* Fantastic Dizzy [SMS-GG] */
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{0x76C5BDFB, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_CODIES, SYSTEM_GGMS, REGION_USA}, /* Jang Pung 2 [SMS-GG] */
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{0x6CAA625B, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_CODIES, SYSTEM_GG, REGION_USA}, /* Cosmic Spacehead [GG]*/
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{0x152F0DCC, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_CODIES, SYSTEM_GG, REGION_USA}, /* Drop Zone */
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{0x5E53C7F7, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_CODIES, SYSTEM_GG, REGION_USA}, /* Ernie Els Golf */
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{0xD9A7F170, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_CODIES, SYSTEM_GG, REGION_USA}, /* Man Overboard! */
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{0xF7C524F6, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_CODIES, SYSTEM_GG, REGION_USA}, /* Micro Machines [GG] */
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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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{0x72981057, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_CODIES, SYSTEM_GG, REGION_USA}, /* CJ Elephant Fugitive */
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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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@ -138,34 +133,39 @@ 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 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 using 2KB external RAM (volatile) */
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{0x092F29D6, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_RAM_2K, SYSTEM_SG, REGION_JAPAN_NTSC}, /* The Castle (J) */
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{0xAF4F14BC, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_RAM_2K, SYSTEM_SG, REGION_JAPAN_NTSC}, /* Othello (J) */
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{0x1D1A0CA3, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_RAM_2K, SYSTEM_SGII, REGION_JAPAN_NTSC}, /* Othello (TW) */
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/* games requiring 2K internal RAM (Othello Multivision hardware) */
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{0x7F7F009D, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_OMV, SYSTEM_SG, REGION_JAPAN_NTSC}, /* Circus Charlie (KR) */
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{0x77DB4704, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_OMV, SYSTEM_SG, REGION_JAPAN_NTSC}, /* Q*Bert */
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{0xC5A67B95, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_OMV, SYSTEM_SG, REGION_JAPAN_NTSC}, /* Othello Multivision BIOS */
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/* games requiring SG-1000 II 8K RAM extension adapter */
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{0xCE5648C3, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_RAM_8K_EXT1, SYSTEM_SGII, REGION_JAPAN_NTSC}, /* Bomberman Special [DahJee] (TW) */
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{0x223397A1, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_RAM_8K_EXT1, SYSTEM_SGII, REGION_JAPAN_NTSC}, /* King's Valley (TW) */
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{0x281D2888, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_RAM_8K_EXT1, SYSTEM_SGII, REGION_JAPAN_NTSC}, /* Knightmare (TW) */
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{0x306D5F78, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_RAM_8K_EXT1, SYSTEM_SGII, REGION_JAPAN_NTSC}, /* Rally-X [DahJee] (TW) */
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{0x29E047CC, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_RAM_8K_EXT1, SYSTEM_SGII, REGION_JAPAN_NTSC}, /* Road Fighter (TW) */
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{0x5CBD1163, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_RAM_8K_EXT1, SYSTEM_SGII, REGION_JAPAN_NTSC}, /* Tank Battalion (TW) */
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{0x2E7166D5, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_RAM_8K_EXT1, SYSTEM_SGII, REGION_JAPAN_NTSC}, /* The Legend of Kage (TW) */
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{0xC550B4F0, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_RAM_8K_EXT1, SYSTEM_SGII, REGION_JAPAN_NTSC}, /* TwinBee (TW) */
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{0xFC87463C, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_RAM_8K_EXT1, SYSTEM_SGII, REGION_JAPAN_NTSC}, /* Yie Ar Kung-Fu II (TW) */
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{0x69FC1494, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_RAM_8K_EXT2, SYSTEM_SGII, REGION_JAPAN_NTSC}, /* Bomberman Special (TW) */
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{0xFFC4EE3F, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_RAM_8K_EXT2, SYSTEM_SGII, REGION_JAPAN_NTSC}, /* Magical Kid Wiz (TW) */
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{0x2E366CCF, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_RAM_8K_EXT2, SYSTEM_SGII, REGION_JAPAN_NTSC}, /* The Castle (TW) */
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{0xAAAC12CF, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_RAM_8K_EXT2, SYSTEM_SGII, REGION_JAPAN_NTSC}, /* Rally-X (TW) */
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{0xD2EDD329, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_RAM_8K_EXT2, SYSTEM_SGII, REGION_JAPAN_NTSC}, /* Road Fighter (TW) */
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/* games requiring 2K internal RAM (SG-1000 II clone hardware) */
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{0x7F7F009D, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_NONE, SYSTEM_SGII, REGION_JAPAN_NTSC}, /* Circus Charlie (KR) */
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{0x77DB4704, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_NONE, SYSTEM_SGII, REGION_JAPAN_NTSC}, /* Q*Bert */
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{0xC5A67B95, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_NONE, SYSTEM_SGII, REGION_JAPAN_NTSC}, /* Othello Multivision BIOS */
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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 (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 Japanese Master System I/O chip (315-5297) */
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{0xBD1CC7DF, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_SEGA, SYSTEM_SMS, REGION_JAPAN_NTSC}, /* Super Tetris (KR) */
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{0x6D309AC5, 0, 0, SYSTEM_MS_GAMEPAD, MAPPER_SEGA, SYSTEM_SMS, 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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@ -368,7 +368,7 @@ static unsigned char read_mapper_default(unsigned int address);
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void sms_cart_init(void)
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{
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int i;
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int i = sizeof(game_list) / sizeof(rominfo_t) - 1;
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/* game CRC */
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uint32 crc = crc32(0, cart.rom, cart.romsize);
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@ -401,7 +401,7 @@ void sms_cart_init(void)
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}
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/* auto-detect game settings */
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for (i=0; i<GAME_DATABASE_CNT; i++)
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do
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{
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if (crc == game_list[i].crc)
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{
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@ -427,9 +427,10 @@ void sms_cart_init(void)
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}
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/* game found, leave loop */
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i = GAME_DATABASE_CNT;
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break;
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}
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}
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while (i--);
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/* ROM paging */
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if (cart_rom.mapper < MAPPER_SEGA)
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@ -672,7 +673,7 @@ void sms_cart_switch(uint8 mode)
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int sms_cart_region_detect(void)
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{
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int i;
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int i = sizeof(game_list) / sizeof(rominfo_t) - 1;
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/* compute CRC */
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uint32 crc = crc32(0, cart.rom, cart.romsize);
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@ -684,13 +685,14 @@ int sms_cart_region_detect(void)
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}
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/* game database */
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for (i=0; i<GAME_DATABASE_CNT; i++)
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do
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{
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if (crc == game_list[i].crc)
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{
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return game_list[i].region;
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}
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}
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while(i--);
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/* Mark-III hardware */
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if (system_hw == SYSTEM_MARKIII)
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@ -721,44 +723,40 @@ static void mapper_reset(void)
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{
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int i;
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/* reset internal RAM mapping */
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if (system_hw == SYSTEM_SG)
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/* reset $C000-$FFFF mapping */
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if (cart_rom.mapper == MAPPER_RAM_8K_EXT2)
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{
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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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for (i = 0x30; i < 0x40; i++)
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{
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/* $C000-$FFFF mapped to 8k external 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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z80_readmap[i] = z80_writemap[i] = &work_ram[(i & 0x07) << 10];
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}
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/* Othello Multivision hardware */
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else if (cart_rom.mapper == MAPPER_OMV)
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}
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else if (system_hw == SYSTEM_SGII)
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{
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/* SG-1000 II clone hardware with 2KB internal RAM */
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for (i = 0x30; i < 0x40; i++)
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{
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/* $C000-$FFFF mapped to 2k internal RAM (mirrored) */
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for (i = 0x30; i < 0x40; i++)
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{
|
||||
z80_readmap[i] = z80_writemap[i] = &work_ram[(i & 0x01) << 10];
|
||||
}
|
||||
z80_readmap[i] = z80_writemap[i] = &work_ram[(i & 0x01) << 10];
|
||||
}
|
||||
|
||||
/* default SG-1000 hardware */
|
||||
else
|
||||
}
|
||||
else if (system_hw == SYSTEM_SG)
|
||||
{
|
||||
/* default SG-1000 hardware has only 1KB internal RAM */
|
||||
for (i = 0x30; i < 0x40; i++)
|
||||
{
|
||||
/* $C000-$FFFF mapped to 1k internal RAM (mirrored) */
|
||||
for (i = 0x30; i < 0x40; i++)
|
||||
{
|
||||
z80_readmap[i] = z80_writemap[i] = &work_ram[0];
|
||||
}
|
||||
z80_readmap[i] = z80_writemap[i] = &work_ram[0];
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
/* Master System / Game Gear hardware: $C000-$FFFF mapped to 8k internal RAM (mirrored) */
|
||||
/* Mark III / Master System / Game Gear hardware */
|
||||
for (i = 0x30; i < 0x40; i++)
|
||||
{
|
||||
/* $C000-$FFFF mapped to 8k internal RAM (mirrored) */
|
||||
z80_readmap[i] = z80_writemap[i] = &work_ram[(i & 0x07) << 10];
|
||||
}
|
||||
}
|
||||
@ -779,37 +777,34 @@ static void mapper_reset(void)
|
||||
return;
|
||||
}
|
||||
|
||||
/* by default, $0000-$BFFF is mapped to ROM (first 48k) */
|
||||
/* reset $0000-$BFFF mapping */
|
||||
for (i = 0x00; i < 0x30; i++)
|
||||
{
|
||||
/* by default, $0000-$BFFF is mapped to cartridge ROM (first 48k) */
|
||||
z80_readmap[i] = &slot.rom[i << 10];
|
||||
z80_writemap[i] = cart.rom + 0x510000; /* unused area */
|
||||
}
|
||||
|
||||
/* reset cartridge hardware mapping */
|
||||
if (slot.mapper < MAPPER_SEGA)
|
||||
if (slot.mapper == MAPPER_RAM_8K_EXT1)
|
||||
{
|
||||
/* cartridge extra RAM enabled by default with 32K ROM (The Castle) */
|
||||
if (slot.pages <= 0x20)
|
||||
{
|
||||
/* $8000-$BFFF mapped to 8k external RAM (mirrored) */
|
||||
for (i = 0x20; i < 0x30; i++)
|
||||
{
|
||||
z80_readmap[i] = z80_writemap[i] = &work_ram[0x2000 + ((i & 0x07) << 10)];
|
||||
}
|
||||
}
|
||||
|
||||
/* 8k RAM extension adapter (type A) */
|
||||
if (slot.mapper == MAPPER_RAM_8K_EXT1)
|
||||
for (i = 0x08; i < 0x10; i++)
|
||||
{
|
||||
/* $2000-$3FFF mapped to 8k external RAM */
|
||||
for (i = 0x08; i < 0x10; i++)
|
||||
{
|
||||
z80_readmap[i] = z80_writemap[i] = &work_ram[0x2000 + ((i & 0x07) << 10)];
|
||||
}
|
||||
z80_readmap[i] = z80_writemap[i] = &work_ram[0x2000 + ((i & 0x07) << 10)];
|
||||
}
|
||||
}
|
||||
else
|
||||
else if (slot.mapper == MAPPER_RAM_2K)
|
||||
{
|
||||
/* 2k on-board RAM (The Castle, Othello) */
|
||||
for (i = 0x20; i < 0x30; i++)
|
||||
{
|
||||
/* $8000-$BFFF mapped to 2k external RAM (mirrored) */
|
||||
z80_readmap[i] = z80_writemap[i] = &work_ram[0x2000 + ((i & 0x07) << 10)];
|
||||
}
|
||||
}
|
||||
else if (slot.mapper >= MAPPER_SEGA)
|
||||
{
|
||||
/* reset ROM paging hardware */
|
||||
if (slot.mapper & MAPPER_KOREA_8K)
|
||||
@ -844,6 +839,7 @@ static void mapper_reset(void)
|
||||
switch (slot.mapper)
|
||||
{
|
||||
case MAPPER_NONE:
|
||||
case MAPPER_RAM_2K:
|
||||
case MAPPER_RAM_8K_EXT1:
|
||||
case MAPPER_RAM_8K_EXT2:
|
||||
z80_readmem = read_mapper_default;
|
||||
|
||||
@ -2,7 +2,7 @@
|
||||
* Genesis Plus
|
||||
* SG-1000, Master System & Game Gear cartridge hardware support
|
||||
*
|
||||
* Copyright (C) 2007-2013 Eke-Eke (Genesis Plus GX)
|
||||
* Copyright (C) 2007-2014 Eke-Eke (Genesis Plus GX)
|
||||
*
|
||||
* Redistribution and use of this code or any derivative works are permitted
|
||||
* provided that the following conditions are met:
|
||||
|
||||
@ -5,7 +5,7 @@
|
||||
* Support for SG-1000, Mark-III, Master System, Game Gear, Mega Drive & Mega CD hardware
|
||||
*
|
||||
* Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003 Charles Mac Donald (original code)
|
||||
* Copyright (C) 2007-2013 Eke-Eke (Genesis Plus GX)
|
||||
* Copyright (C) 2007-2014 Eke-Eke (Genesis Plus GX)
|
||||
*
|
||||
* Redistribution and use of this code or any derivative works are permitted
|
||||
* provided that the following conditions are met:
|
||||
@ -196,7 +196,7 @@ void gen_init(void)
|
||||
break;
|
||||
}
|
||||
|
||||
/* Master SYstem hardware */
|
||||
/* Master System hardware */
|
||||
case SYSTEM_SMS:
|
||||
case SYSTEM_SMS2:
|
||||
{
|
||||
@ -215,6 +215,7 @@ void gen_init(void)
|
||||
|
||||
/* SG-1000 hardware */
|
||||
case SYSTEM_SG:
|
||||
case SYSTEM_SGII:
|
||||
{
|
||||
z80_writeport = z80_sg_port_w;
|
||||
z80_readport = z80_sg_port_r;
|
||||
|
||||
@ -5,7 +5,7 @@
|
||||
* Support for SG-1000, Mark-III, Master System, Game Gear, Mega Drive & Mega CD hardware
|
||||
*
|
||||
* Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003 Charles Mac Donald (original code)
|
||||
* Copyright (C) 2007-2013 Eke-Eke (Genesis Plus GX)
|
||||
* Copyright (C) 2007-2014 Eke-Eke (Genesis Plus GX)
|
||||
*
|
||||
* Redistribution and use of this code or any derivative works are permitted
|
||||
* provided that the following conditions are met:
|
||||
|
||||
@ -5,7 +5,7 @@
|
||||
* Support for SG-1000, Mark-III, Master System, Game Gear & Mega Drive ports access
|
||||
*
|
||||
* Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003 Charles Mac Donald (original code)
|
||||
* Copyright (C) 2007-2011 Eke-Eke (Genesis Plus GX)
|
||||
* Copyright (C) 2007-2014 Eke-Eke (Genesis Plus GX)
|
||||
*
|
||||
* Redistribution and use of this code or any derivative works are permitted
|
||||
* provided that the following conditions are met:
|
||||
@ -430,6 +430,13 @@ void z80_ms_port_w(unsigned int port, unsigned char data)
|
||||
case 0x00:
|
||||
case 0x01:
|
||||
{
|
||||
/* full address range is decoded by 315-5297 I/O chip (fixes Super Tetris / Power Boggle Boggle) */
|
||||
if ((region_code == REGION_JAPAN_NTSC) && ((port & 0xFE) != 0x3E))
|
||||
{
|
||||
z80_unused_port_w(port & 0xFF, data);
|
||||
return;
|
||||
}
|
||||
|
||||
io_z80_write(port & 1, data, Z80.cycles + SMS_CYCLE_OFFSET);
|
||||
return;
|
||||
}
|
||||
|
||||
@ -5,7 +5,7 @@
|
||||
* Support for SG-1000, Mark-III, Master System, Game Gear & Mega Drive ports access
|
||||
*
|
||||
* Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003 Charles Mac Donald (original code)
|
||||
* Copyright (C) 2007-2011 Eke-Eke (Genesis Plus GX)
|
||||
* Copyright (C) 2007-2014 Eke-Eke (Genesis Plus GX)
|
||||
*
|
||||
* Redistribution and use of this code or any derivative works are permitted
|
||||
* provided that the following conditions are met:
|
||||
|
||||
@ -2,7 +2,7 @@
|
||||
* Genesis Plus
|
||||
* Savestate support
|
||||
*
|
||||
* Copyright (C) 2007-2012 Eke-Eke (Genesis Plus GX)
|
||||
* Copyright (C) 2007-2014 Eke-Eke (Genesis Plus GX)
|
||||
*
|
||||
* Redistribution and use of this code or any derivative works are permitted
|
||||
* provided that the following conditions are met:
|
||||
@ -121,7 +121,7 @@ int state_load(unsigned char *state)
|
||||
}
|
||||
else
|
||||
{
|
||||
SN76489_Init(snd.blips[0][0], snd.blips[0][1], (system_hw < SYSTEM_MARKIII) ? SN_DISCRETE : SN_INTEGRATED);
|
||||
SN76489_Init(snd.blips[0][0], snd.blips[0][1], (system_hw == SYSTEM_SG) ? SN_DISCRETE : SN_INTEGRATED);
|
||||
SN76489_Config(0, config.psg_preamp, config.psgBoostNoise, io_reg[6]);
|
||||
}
|
||||
|
||||
|
||||
@ -2,7 +2,7 @@
|
||||
* Genesis Plus
|
||||
* Savestate support
|
||||
*
|
||||
* Copyright (C) 2007-2012 Eke-Eke (Genesis Plus GX)
|
||||
* Copyright (C) 2007-2014 Eke-Eke (Genesis Plus GX)
|
||||
*
|
||||
* Redistribution and use of this code or any derivative works are permitted
|
||||
* provided that the following conditions are met:
|
||||
|
||||
@ -5,7 +5,7 @@
|
||||
* Support for "Genesis", "Genesis + CD" & "Master System" modes
|
||||
*
|
||||
* Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003 Charles Mac Donald (original code)
|
||||
* Copyright (C) 2007-2013 Eke-Eke (Genesis Plus GX)
|
||||
* Copyright (C) 2007-2014 Eke-Eke (Genesis Plus GX)
|
||||
*
|
||||
* Redistribution and use of this code or any derivative works are permitted
|
||||
* provided that the following conditions are met:
|
||||
@ -111,7 +111,7 @@ int audio_init(int samplerate, double framerate)
|
||||
blip_set_rates(snd.blips[0][1], mclk, samplerate);
|
||||
|
||||
/* Initialize PSG core */
|
||||
SN76489_Init(snd.blips[0][0], snd.blips[0][1], (system_hw < SYSTEM_MARKIII) ? SN_DISCRETE : SN_INTEGRATED);
|
||||
SN76489_Init(snd.blips[0][0], snd.blips[0][1], (system_hw == SYSTEM_SG) ? SN_DISCRETE : SN_INTEGRATED);
|
||||
|
||||
/* Mega CD sound hardware */
|
||||
if (system_hw == SYSTEM_MCD)
|
||||
|
||||
@ -5,7 +5,7 @@
|
||||
* Support for "Genesis", "Genesis + CD" & "Master System" modes
|
||||
*
|
||||
* Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003 Charles Mac Donald (original code)
|
||||
* Copyright (C) 2007-2013 Eke-Eke (Genesis Plus GX)
|
||||
* Copyright (C) 2007-2014 Eke-Eke (Genesis Plus GX)
|
||||
*
|
||||
* Redistribution and use of this code or any derivative works are permitted
|
||||
* provided that the following conditions are met:
|
||||
@ -46,7 +46,8 @@
|
||||
|
||||
/* Supported hardware models */
|
||||
#define SYSTEM_SG 0x10
|
||||
#define SYSTEM_MARKIII 0x11
|
||||
#define SYSTEM_SGII 0x11
|
||||
#define SYSTEM_MARKIII 0x12
|
||||
#define SYSTEM_SMS 0x20
|
||||
#define SYSTEM_SMS2 0x21
|
||||
#define SYSTEM_GG 0x40
|
||||
|
||||
@ -2,10 +2,10 @@
|
||||
* Genesis Plus
|
||||
* Video Display Processor (68k & Z80 CPU interface)
|
||||
*
|
||||
* Support for SG-1000, Master System (315-5124 & 315-5246), Game Gear & Mega Drive VDP
|
||||
* Support for SG-1000 (TMS99xx & 315-5066), Master System (315-5124 & 315-5246), Game Gear & Mega Drive VDP
|
||||
*
|
||||
* Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003 Charles Mac Donald (original code)
|
||||
* Copyright (C) 2007-2013 Eke-Eke (Genesis Plus GX)
|
||||
* Copyright (C) 2007-2014 Eke-Eke (Genesis Plus GX)
|
||||
*
|
||||
* Redistribution and use of this code or any derivative works are permitted
|
||||
* provided that the following conditions are met:
|
||||
@ -322,8 +322,9 @@ void vdp_reset(void)
|
||||
switch (system_hw)
|
||||
{
|
||||
case SYSTEM_SG:
|
||||
case SYSTEM_SGII:
|
||||
{
|
||||
/* SG-1000 VDP (TMS99xx) */
|
||||
/* SG-1000 (TMS99xx) or SG-1000 II (315-5066) VDP */
|
||||
vdp_z80_data_w = vdp_z80_data_w_sg;
|
||||
vdp_z80_data_r = vdp_z80_data_r_m4;
|
||||
break;
|
||||
@ -358,19 +359,23 @@ void vdp_reset(void)
|
||||
}
|
||||
|
||||
/* SG-1000 specific */
|
||||
if (system_hw == SYSTEM_SG)
|
||||
if (system_hw & SYSTEM_SG)
|
||||
{
|
||||
/* 16k address decoding by default (Magical Kid Wiz) */
|
||||
vdp_reg_w(1, 0x80, 0);
|
||||
|
||||
/* no H-INT on TMS99xx */
|
||||
vdp_reg_w(10, 0xFF, 0);
|
||||
}
|
||||
|
||||
/* Game Gear specific */
|
||||
else if (system_hw & SYSTEM_GG)
|
||||
{
|
||||
/* H-INT disabled on startup (fixes Terminator 2: Judgement Day) */
|
||||
vdp_reg_w(10, 0xFF, 0);
|
||||
}
|
||||
|
||||
/* Master System specific */
|
||||
else if ((system_hw & SYSTEM_SMS) && (!(config.bios & 1) || !(system_bios & SYSTEM_SMS)))
|
||||
{
|
||||
/* force registers initialization (only if Master System BIOS is disabled or not loaded) */
|
||||
/* force registers initialization (normally done by BOOT ROM on all Master System models) */
|
||||
vdp_reg_w(0 , 0x36, 0);
|
||||
vdp_reg_w(1 , 0x80, 0);
|
||||
vdp_reg_w(2 , 0xFF, 0);
|
||||
@ -389,7 +394,7 @@ void vdp_reset(void)
|
||||
/* Mega Drive specific */
|
||||
else if (((system_hw == SYSTEM_MD) || (system_hw == SYSTEM_MCD)) && (config.bios & 1) && !(system_bios & SYSTEM_MD))
|
||||
{
|
||||
/* force registers initialization (only if TMSS model is emulated and BOOT ROM is not loaded) */
|
||||
/* force registers initialization (normally done by BOOT ROM, only on Mega Drive model with TMSS) */
|
||||
vdp_reg_w(0 , 0x04, 0);
|
||||
vdp_reg_w(1 , 0x04, 0);
|
||||
vdp_reg_w(10, 0xFF, 0);
|
||||
@ -445,7 +450,7 @@ int vdp_context_load(uint8 *state, uint8 version)
|
||||
/* restore VDP registers */
|
||||
if (system_hw < SYSTEM_MD)
|
||||
{
|
||||
if (system_hw > SYSTEM_SG)
|
||||
if (system_hw >= SYSTEM_MARKIII)
|
||||
{
|
||||
for (i=0;i<0x10;i++)
|
||||
{
|
||||
@ -1632,6 +1637,37 @@ static void vdp_reg_w(unsigned int r, unsigned int d, unsigned int cycles)
|
||||
r = d ^ reg[1];
|
||||
reg[1] = d;
|
||||
|
||||
/* 4K/16K address decoding */
|
||||
if (r & 0x80)
|
||||
{
|
||||
/* original TMS99xx hardware only (fixes Magical Kid Wiz) */
|
||||
if (system_hw == SYSTEM_SG)
|
||||
{
|
||||
int i;
|
||||
|
||||
/* make temporary copy of 16KB VRAM */
|
||||
memcpy(vram + 0x4000, vram, 0x4000);
|
||||
|
||||
/* re-arrange 16KB VRAM address decoding */
|
||||
if (d & 0x80)
|
||||
{
|
||||
/* 4K->16K address decoding */
|
||||
for (i=0; i<0x4000; i+=2)
|
||||
{
|
||||
*(uint16 *)(vram + ((i & 0x203F) | ((i << 6) & 0x1000) | ((i >> 1) & 0xFC0))) = *(uint16 *)(vram + 0x4000 + i);
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
/* 16K->4K address decoding */
|
||||
for (i=0; i<0x4000; i+=2)
|
||||
{
|
||||
*(uint16 *)(vram + ((i & 0x203F) | ((i >> 6) & 0x40) | ((i << 1) & 0x1F80))) = *(uint16 *)(vram + 0x4000 + i);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/* Display status (modified during active display) */
|
||||
if ((r & 0x40) && (v_counter < bitmap.viewport.h))
|
||||
{
|
||||
@ -2762,7 +2798,7 @@ static unsigned int vdp_z80_data_r_m4(void)
|
||||
/* Process next read */
|
||||
fifo[0] = vram[addr & 0x3FFF];
|
||||
|
||||
/* Increment address register (TODO: check how address is incremented in Mode 4) */
|
||||
/* Increment address register (TODO: check how address is incremented with Mega Drive VDP in Mode 4) */
|
||||
addr += (reg[15] + 1);
|
||||
|
||||
/* Return data */
|
||||
@ -2978,12 +3014,6 @@ static void vdp_z80_data_w_sg(unsigned int data)
|
||||
/* Clear pending flag */
|
||||
pending = 0;
|
||||
|
||||
/* 4K address decoding (cf. tms9918a.txt) */
|
||||
if (!(reg[1] & 0x80))
|
||||
{
|
||||
index = (index & 0x203F) | ((index >> 6) & 0x40) | ((index << 1) & 0x1F80);
|
||||
}
|
||||
|
||||
/* VRAM write */
|
||||
vram[index] = data;
|
||||
|
||||
|
||||
@ -2,10 +2,10 @@
|
||||
* Genesis Plus
|
||||
* Video Display Processor (68k & Z80 CPU interface)
|
||||
*
|
||||
* Support for SG-1000, Master System (315-5124 & 315-5246), Game Gear & Mega Drive VDP
|
||||
* Support for SG-1000 (TMS99xx & 315-5066), Master System (315-5124 & 315-5246), Game Gear & Mega Drive VDP
|
||||
*
|
||||
* Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003 Charles Mac Donald (original code)
|
||||
* Copyright (C) 2007-2013 Eke-Eke (Genesis Plus GX)
|
||||
* Copyright (C) 2007-2014 Eke-Eke (Genesis Plus GX)
|
||||
*
|
||||
* Redistribution and use of this code or any derivative works are permitted
|
||||
* provided that the following conditions are met:
|
||||
|
||||
@ -1,11 +1,11 @@
|
||||
/***************************************************************************************
|
||||
* Genesis Plus
|
||||
* Video Display Processor (Modes 0, 1, 2, 3, 4 & 5 rendering)
|
||||
* Video Display Processor (video output rendering)
|
||||
*
|
||||
* Support for SG-1000, Master System (315-5124 & 315-5246), Game Gear & Mega Drive VDP
|
||||
* Support for all TMS99xx modes, Mode 4 & Mode 5 rendering
|
||||
*
|
||||
* Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003 Charles Mac Donald (original code)
|
||||
* Copyright (C) 2007-2013 Eke-Eke (Genesis Plus GX)
|
||||
* Copyright (C) 2007-2014 Eke-Eke (Genesis Plus GX)
|
||||
*
|
||||
* Redistribution and use of this code or any derivative works are permitted
|
||||
* provided that the following conditions are met:
|
||||
@ -1023,6 +1023,7 @@ void color_update_m4(int index, unsigned int data)
|
||||
}
|
||||
|
||||
case SYSTEM_SG:
|
||||
case SYSTEM_SGII:
|
||||
{
|
||||
/* Fixed TMS99xx palette */
|
||||
if (index & 0x0F)
|
||||
@ -4103,7 +4104,7 @@ void render_line(int line)
|
||||
/* Left-most column blanking */
|
||||
if (reg[0] & 0x20)
|
||||
{
|
||||
if (system_hw > SYSTEM_SG)
|
||||
if (system_hw > SYSTEM_SGII)
|
||||
{
|
||||
memset(&linebuf[0][0x20], 0x40, 8);
|
||||
}
|
||||
|
||||
@ -1,8 +1,8 @@
|
||||
/***************************************************************************************
|
||||
* Genesis Plus
|
||||
* Video Display Processor (Modes 0, 1, 2, 3, 4 & 5 rendering)
|
||||
* Video Display Processor (video output rendering)
|
||||
*
|
||||
* Support for SG-1000, Master System (315-5124 & 315-5246), Game Gear & Mega Drive VDP
|
||||
* Support for all TMS99xx modes, Mode 4 & Mode 5 rendering
|
||||
*
|
||||
* Copyright (C) 1998-2007 Charles Mac Donald (original code)
|
||||
* Copyright (C) 2007-2013 Eke-Eke (Genesis Plus GX)
|
||||
|
||||
@ -3,7 +3,7 @@
|
||||
*
|
||||
* Genesis Plus GX menu
|
||||
*
|
||||
* Copyright Eke-Eke (2009-2013)
|
||||
* Copyright Eke-Eke (2009-2014)
|
||||
*
|
||||
* Redistribution and use of this code or any derivative works are permitted
|
||||
* provided that the following conditions are met:
|
||||
@ -1081,6 +1081,8 @@ static void systemmenu ()
|
||||
sprintf (items[0].text, "Console Type: AUTO");
|
||||
else if (config.system == SYSTEM_SG)
|
||||
sprintf (items[0].text, "Console Type: SG-1000");
|
||||
else if (config.system == SYSTEM_SGII)
|
||||
sprintf (items[0].text, "Console Type: SG-1000 II");
|
||||
else if (config.system == SYSTEM_MARKIII)
|
||||
sprintf (items[0].text, "Console Type: MARK-III");
|
||||
else if (config.system == SYSTEM_SMS)
|
||||
@ -1166,6 +1168,12 @@ static void systemmenu ()
|
||||
if (system_hw) system_hw = SYSTEM_SG;
|
||||
}
|
||||
else if (config.system == SYSTEM_SG)
|
||||
{
|
||||
config.system = SYSTEM_SGII;
|
||||
sprintf (items[0].text, "Console Type: SG-1000 II");
|
||||
if (system_hw) system_hw = SYSTEM_SGII;
|
||||
}
|
||||
else if (config.system == SYSTEM_SGII)
|
||||
{
|
||||
config.system = SYSTEM_MARKIII;
|
||||
sprintf (items[0].text, "Console Type: MARK-III");
|
||||
|
||||
@ -3,7 +3,7 @@
|
||||
*
|
||||
* Genesis Plus GX menus
|
||||
*
|
||||
* Copyright Eke-Eke (2009-2013)
|
||||
* Copyright Eke-Eke (2009-2014)
|
||||
*
|
||||
* Redistribution and use of this code or any derivative works are permitted
|
||||
* provided that the following conditions are met:
|
||||
|
||||
Loading…
Reference in New Issue
Block a user