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Merge git://github.com/ekeeke/Genesis-Plus-GX
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twinaphex
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5e11a35fe7
@ -67,6 +67,8 @@ static void mapper_sf004_w(uint32 address, uint32 data);
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static uint32 mapper_sf004_r(uint32 address);
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static void mapper_t5740_w(uint32 address, uint32 data);
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static uint32 mapper_t5740_r(uint32 address);
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static uint32 mapper_smw_64_r(uint32 address);
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static void mapper_smw_64_w(uint32 address, uint32 data);
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static void mapper_realtec_w(uint32 address, uint32 data);
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static void mapper_seganet_w(uint32 address, uint32 data);
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static void mapper_32k_w(uint32 data);
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@ -704,6 +706,38 @@ void md_cart_init(void)
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zbank_memory_map[i].write = zbank_unused_w;
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}
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}
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else if ((*(uint16 *)(cart.rom + 0x08) == 0x6000) && (*(uint16 *)(cart.rom + 0x0a) == 0x01f6))
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{
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/* Super Mario World 64 (unlicensed) mapper */
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for (i=0x08; i<0x10; i++)
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{
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/* lower 512KB mirrored */
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m68k.memory_map[i].base = cart.rom + ((i & 7) << 16);
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}
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for (i=0x10; i<0x40; i++)
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{
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/* unused area */
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m68k.memory_map[i].read8 = m68k_read_bus_8;
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m68k.memory_map[i].read16 = m68k_read_bus_16;
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m68k.memory_map[i].write8 = m68k_unused_8_w;
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m68k.memory_map[i].write16 = m68k_unused_16_w;
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zbank_memory_map[i].read = m68k_read_bus_8;
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zbank_memory_map[i].write = zbank_unused_w;
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}
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for (i=0x60; i<0x70; i++)
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{
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/* custom hardware */
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m68k.memory_map[i].base = cart.rom + 0x0f0000;
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m68k.memory_map[i].read8 = ((i & 0x07) < 0x04) ? NULL : mapper_smw_64_r;
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m68k.memory_map[i].read16 = ((i & 0x07) < 0x04) ? NULL : mapper_smw_64_r;
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m68k.memory_map[i].write8 = mapper_smw_64_w;
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m68k.memory_map[i].write16 = mapper_smw_64_w;
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zbank_memory_map[i].read = ((i & 0x07) < 0x04) ? NULL : mapper_smw_64_r;
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zbank_memory_map[i].write = mapper_smw_64_w;
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}
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}
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else if (cart.romsize > 0x400000)
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{
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/* assume linear ROM mapper without bankswitching (max. 10MB) */
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@ -1271,6 +1305,173 @@ static uint32 mapper_t5740_r(uint32 address)
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return READ_BYTE(cart.rom, address);
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}
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/*
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Super Mario World 64 (unlicensed) mapper
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*/
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static void mapper_smw_64_w(uint32 address, uint32 data)
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{
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/* internal registers (saved to backup RAM) */
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switch ((address >> 16) & 0x07)
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{
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case 0x00: /* $60xxxx */
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{
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if (address & 2)
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{
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/* $600003 data write mode ? */
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switch (sram.sram[0x00] & 0x07)
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{
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case 0x00:
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{
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/* update value returned at $660001-$660003 */
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sram.sram[0x06] = ((sram.sram[0x06] ^ sram.sram[0x01]) ^ data) & 0xFE;
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break;
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}
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case 0x01:
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{
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/* update value returned at $660005-$660007 */
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sram.sram[0x07] = data & 0xFE;
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break;
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}
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case 0x07:
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{
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/* update selected ROM bank (upper 512K) mapped at $610000-$61ffff */
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m68k.memory_map[0x61].base = m68k.memory_map[0x69].base = cart.rom + 0x080000 + ((data & 0x1c) << 14);
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break;
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}
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default:
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{
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/* unknown mode */
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break;
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}
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}
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/* $600003 data register */
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sram.sram[0x01] = data;
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}
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else
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{
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/* $600001 ctrl register */
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sram.sram[0x00] = data;
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}
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return;
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}
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case 0x01: /* $61xxxx */
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{
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if (address & 2)
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{
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/* $610003 ctrl register */
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sram.sram[0x02] = data;
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}
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return;
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}
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case 0x04: /* $64xxxx */
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{
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if (address & 2)
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{
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/* $640003 data register */
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sram.sram[0x04] = data;
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}
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else
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{
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/* $640001 data register */
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sram.sram[0x03] = data;
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}
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return;
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}
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case 0x06: /* $66xxxx */
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{
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/* unknown */
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return;
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}
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case 0x07: /* $67xxxx */
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{
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if (!(address & 2))
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{
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/* $670001 ctrl register */
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sram.sram[0x05] = data;
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/* upper 512K ROM bank-switching enabled ? */
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if (sram.sram[0x02] & 0x80)
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{
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/* update selected ROM bank (upper 512K) mapped at $600000-$60ffff */
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m68k.memory_map[0x60].base = m68k.memory_map[0x68].base = cart.rom + 0x080000 + ((data & 0x1c) << 14);
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}
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}
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return;
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}
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default: /* not used */
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{
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m68k_unused_8_w(address, data);
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return;
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}
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}
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}
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static uint32 mapper_smw_64_r(uint32 address)
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{
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/* internal registers (saved to backup RAM) */
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switch ((address >> 16) & 0x03)
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{
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case 0x02: /* $66xxxx */
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{
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switch ((address >> 1) & 7)
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{
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case 0x00: return sram.sram[0x06];
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case 0x01: return sram.sram[0x06] + 1;
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case 0x02: return sram.sram[0x07];
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case 0x03: return sram.sram[0x07] + 1;
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case 0x04: return sram.sram[0x08];
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case 0x05: return sram.sram[0x08] + 1;
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case 0x06: return sram.sram[0x08] + 2;
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case 0x07: return sram.sram[0x08] + 3;
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}
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}
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case 0x03: /* $67xxxx */
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{
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uint8 data = (sram.sram[0x02] & 0x80) ? ((sram.sram[0x05] & 0x40) ? (sram.sram[0x03] & sram.sram[0x04]) : (sram.sram[0x03] ^ 0xFF)) : 0x00;
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if (address & 2)
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{
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/* $670003 */
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data &= 0x7f;
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}
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else
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{
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/* $66xxxx data registers update */
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if (sram.sram[0x05] & 0x80)
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{
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if (sram.sram[0x05] & 0x20)
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{
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/* update $660009-$66000f data register */
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sram.sram[0x08] = (sram.sram[0x04] << 2) & 0xFC;
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}
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else
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{
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/* update $660001-$660003 data register */
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sram.sram[0x06] = (sram.sram[0x01] ^ (sram.sram[0x03] << 1)) & 0xFE;
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}
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}
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}
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return data;
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}
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default: /* 64xxxx-$65xxxx */
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{
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return 0x00;
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}
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}
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}
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/*
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Realtec ROM bankswitch (Earth Defend, Balloon Boy & Funny World, Whac-A-Critter)
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(Note: register usage is inverted in TascoDlx documentation)
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@ -84,6 +84,12 @@ static const uint16 toc_lunar[52] =
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685, 3167
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};
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static const uint32 toc_shadow[15] =
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{
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10226, 70054, 11100, 12532, 12444, 11923, 10059, 10167, 10138, 13792,
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11637, 2547, 2521, 3856, 900
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};
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/* supported WAVE file header (16-bit stereo samples @44.1kHz) */
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static const unsigned char waveHeader[32] =
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{
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@ -91,7 +97,7 @@ static const unsigned char waveHeader[32] =
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0x44,0xac,0x00,0x00,0x10,0xb1,0x02,0x00,0x04,0x00,0x10,0x00,0x64,0x61,0x74,0x61
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};
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/* supported file extensions */
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/* supported WAVE file extensions */
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static const char extensions[10][16] =
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{
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"%02d.wav",
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@ -595,7 +601,7 @@ int cdd_load(char *filename, char *header)
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/* Simulate audio tracks if none found */
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if (cdd.toc.last == 1)
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{
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/* Some games require specific TOC infos */
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/* Some games require exact TOC infos */
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if (strstr(header + 0x180,"T-95035") != NULL)
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{
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/* Snatcher */
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@ -622,6 +628,19 @@ int cdd_load(char *filename, char *header)
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}
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while (cdd.toc.last < 52);
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}
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else if (strstr(header + 0x180,"T-113045") != NULL)
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{
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/* Shadow of the Beast II */
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cdd.toc.last = cdd.toc.end = 0;
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do
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{
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cdd.toc.tracks[cdd.toc.last].start = cdd.toc.end;
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cdd.toc.tracks[cdd.toc.last].end = cdd.toc.tracks[cdd.toc.last].start + toc_shadow[cdd.toc.last];
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cdd.toc.end = cdd.toc.tracks[cdd.toc.last].end;
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cdd.toc.last++;
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}
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while (cdd.toc.last < 15);
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}
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else
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{
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/* default TOC (99 tracks & 2s per audio tracks) */
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@ -1063,9 +1082,10 @@ void cdd_process(void)
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{
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/* Fixes a few games hanging during intro because they expect data to be read with some delay */
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/* Wolf Team games (Anet Futatabi, Cobra Command, Road Avenger & Time Gal) need at least 6 interrupts delay */
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/* Radical Rex need at least one interrupt delay */
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/* Jeopardy need at least 9 interrupts delay (without counting seek time delay below )*/
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cdd.latency = 9;
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/* Radical Rex needs at least one interrupt delay */
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/* Jeopardy needs at least 9 interrupts delay */
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/* Space Adventure Cobra (2nd morgue scene) needs at least 13 interrupts delay */
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cdd.latency = 13;
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}
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/* update current track index */
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@ -1161,7 +1181,7 @@ void cdd_process(void)
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/* no audio track playing */
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scd.regs[0x36>>1].byte.h = 0x01;
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/* update status (TODO: figure what is returned in RS1-RS8) */
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/* update status */
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cdd.status = CD_READY;
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scd.regs[0x38>>1].w = CD_SEEK << 8;
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scd.regs[0x3a>>1].w = 0x0000;
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@ -1176,7 +1196,7 @@ void cdd_process(void)
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/* no audio track playing */
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scd.regs[0x36>>1].byte.h = 0x01;
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/* update status (TODO: figure what is returned in RS1-RS8) */
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/* update status */
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cdd.status = CD_READY;
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scd.regs[0x38>>1].w = CD_READY << 8;
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scd.regs[0x3a>>1].w = 0x0000;
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@ -1203,7 +1223,7 @@ void cdd_process(void)
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cdd.scanOffset = CD_SCAN_SPEED;
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cdd.status = CD_SCAN;
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scd.regs[0x38>>1].w = (CD_SCAN << 8) | 0x02;
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scd.regs[0x3a>>1].w = lut_BCD_16[cdd.index+1];
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scd.regs[0x3a>>1].w = (cdd.index < cdd.toc.last) ? lut_BCD_16[cdd.index + 1] : 0x0A0A;
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scd.regs[0x3c>>1].w = 0x0000;
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scd.regs[0x3e>>1].w = 0x0000;
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scd.regs[0x40>>1].byte.h = 0x00;
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@ -1215,7 +1235,7 @@ void cdd_process(void)
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cdd.scanOffset = -CD_SCAN_SPEED;
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cdd.status = CD_SCAN;
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scd.regs[0x38>>1].w = (CD_SCAN << 8) | 0x02;
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scd.regs[0x3a>>1].w = lut_BCD_16[cdd.index+1];
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scd.regs[0x3a>>1].w = (cdd.index < cdd.toc.last) ? lut_BCD_16[cdd.index + 1] : 0x0A0A;
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scd.regs[0x3c>>1].w = 0x0000;
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scd.regs[0x3e>>1].w = 0x0000;
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scd.regs[0x40>>1].byte.h = 0x00;
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