mirror of https://github.com/snes9xgit/snes9x.git
commit
7c5ab7183b
472
bsx.cpp
472
bsx.cpp
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@ -374,16 +374,32 @@ static void BSX_Map_MMC (void)
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static void BSX_Map_FlashIO (void)
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{
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if (BSX.MMC[0x0C] || BSX.MMC[0x0D])
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int i, c;
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if (BSX.prevMMC[0x0C])
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{
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// Bank C0:0000, 2AAA, 5555, FF00-FF1F
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for (int c = 0; c < 16; c++)
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// Banks 00->3F and 80->BF
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for (c = 0; c < 0x400; c += 16)
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{
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Map[c + 0xC00] = (uint8 *) MAP_BSX;
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BlockIsRAM[c + 0xC00] = TRUE;
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BlockIsROM[c + 0xC00] = FALSE;
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for (i = c + 8; i < c + 16; i++)
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{
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Map[i] = Map[i + 0x800] = (uint8 *)MAP_BSX;
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BlockIsRAM[i] = BlockIsRAM[i + 0x800] = TRUE;
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BlockIsROM[i] = BlockIsROM[i + 0x800] = FALSE;
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}
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}
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}
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// Banks 40->7F and C0->FF
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for (c = 0; c < 0x400; c += 16)
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{
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for (i = c; i < c + 16; i++)
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{
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Map[i + 0x400] = Map[i + 0xC00] = (uint8 *)MAP_BSX;
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BlockIsRAM[i + 0x400] = BlockIsRAM[i + 0xC00] = TRUE;
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BlockIsROM[i + 0x400] = BlockIsROM[i + 0xC00] = FALSE;
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}
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}
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}
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}
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static void BSX_Map_SRAM (void)
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@ -405,39 +421,49 @@ static void map_psram_mirror_sub (uint32 bank)
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bank <<= 4;
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if (BSX.MMC[0x02])
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if (BSX.prevMMC[0x02])
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{
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for (c = 0; c < 0x100; c += 16)
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//HiROM
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for (c = 0; c < 0x80; c += 16)
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{
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for (i = c; i < c + 16; i++)
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if ((bank & 0x7F0) >= 0x400)
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{
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Map[i + bank] = &PSRAM[(c << 12) % PSRAM_SIZE];
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BlockIsRAM[i + bank] = TRUE;
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BlockIsROM[i + bank] = FALSE;
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for (i = c; i < c + 16; i++)
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{
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Map[i + bank] = &PSRAM[(c << 12) % PSRAM_SIZE];
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BlockIsRAM[i + bank] = TRUE;
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BlockIsROM[i + bank] = FALSE;
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}
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}
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else
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{
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for (i = c + 8; i < c + 16; i++)
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{
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Map[i + bank] = &PSRAM[(c << 12) % PSRAM_SIZE];
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BlockIsRAM[i + bank] = TRUE;
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BlockIsROM[i + bank] = FALSE;
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}
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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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//LoROM
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for (c = 0; c < 0x100; c += 16)
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{
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if ((bank & 0x7F) >= 0x40)
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if ((bank & 0x7F0) >= 0x400)
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{
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for (i = c; i < c + 8; i++)
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Map[i + bank] = &PSRAM[(c << 11) % PSRAM_SIZE];
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for (i = c; i < c + 8; i++)
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{
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Map[i + bank] = &PSRAM[(c << 11) % PSRAM_SIZE];
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BlockIsRAM[i + bank] = TRUE;
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BlockIsROM[i + bank] = FALSE;
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}
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}
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for (i = c + 8; i < c + 16; i++)
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Map[i + bank] = &PSRAM[(c << 11) % PSRAM_SIZE] - 0x8000;
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for (i = c + 8; i < c + 16; i++)
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{
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Map[i + bank] = &PSRAM[(c << 11) % PSRAM_SIZE] - 0x8000;
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BlockIsRAM[i + bank] = TRUE;
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BlockIsROM[i + bank] = FALSE;
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}
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@ -449,95 +475,118 @@ static void BSX_Map_PSRAM(void)
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{
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int c;
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if (!BSX.MMC[0x02])
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if (!BSX.prevMMC[0x02])
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{
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//LoROM Mode
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if (!BSX.MMC[0x05] && !BSX.MMC[0x06])
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if (!BSX.prevMMC[0x05] && !BSX.prevMMC[0x06])
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{
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//Map PSRAM to 00-0F/80-8F
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if (BSX.MMC[0x03])
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if (BSX.prevMMC[0x03])
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map_psram_mirror_sub(0x00);
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if (BSX.MMC[0x04])
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if (BSX.prevMMC[0x04])
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map_psram_mirror_sub(0x80);
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}
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else if (BSX.MMC[0x05] && !BSX.MMC[0x06])
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else if (BSX.prevMMC[0x05] && !BSX.prevMMC[0x06])
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{
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//Map PSRAM to 20-2F/A0-AF
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if (BSX.MMC[0x03])
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if (BSX.prevMMC[0x03])
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map_psram_mirror_sub(0x20);
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if (BSX.MMC[0x04])
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if (BSX.prevMMC[0x04])
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map_psram_mirror_sub(0xA0);
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}
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else if (!BSX.MMC[0x05] && BSX.MMC[0x06])
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else if (!BSX.prevMMC[0x05] && BSX.prevMMC[0x06])
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{
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//Map PSRAM to 40-4F/C0-CF
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if (BSX.MMC[0x03])
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if (BSX.prevMMC[0x03])
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map_psram_mirror_sub(0x40);
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if (BSX.MMC[0x04])
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if (BSX.prevMMC[0x04])
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map_psram_mirror_sub(0xC0);
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}
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else
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{
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//Map PSRAM to 60-6F/E0-EF
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if (BSX.MMC[0x03])
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if (BSX.prevMMC[0x03])
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map_psram_mirror_sub(0x60);
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if (BSX.MMC[0x04])
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if (BSX.prevMMC[0x04])
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map_psram_mirror_sub(0xE0);
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}
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//Map PSRAM to 70-7D/F0-FF
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if (BSX.MMC[0x03])
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if (BSX.prevMMC[0x03])
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map_psram_mirror_sub(0x70);
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if (BSX.MMC[0x04])
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if (BSX.prevMMC[0x04])
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map_psram_mirror_sub(0xF0);
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}
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else
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{
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//HiROM Mode
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if (!BSX.MMC[0x05] && !BSX.MMC[0x06])
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if (!BSX.prevMMC[0x05] && !BSX.prevMMC[0x06])
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{
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//Map PSRAM to 40-47/C0-C7
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if (BSX.MMC[0x03])
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//Map PSRAM to 00-07/40-47 / 80-87/C0-C7
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if (BSX.prevMMC[0x03])
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{
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map_psram_mirror_sub(0x00);
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map_psram_mirror_sub(0x40);
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}
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if (BSX.MMC[0x04])
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if (BSX.prevMMC[0x04])
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{
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map_psram_mirror_sub(0x80);
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map_psram_mirror_sub(0xC0);
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}
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}
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else if (BSX.MMC[0x05] && !BSX.MMC[0x06])
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else if (BSX.prevMMC[0x05] && !BSX.prevMMC[0x06])
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{
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//Map PSRAM to 50-57/D0-D7
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if (BSX.MMC[0x03])
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//Map PSRAM to 10-17/50-57 / 90-97-D0-D7
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if (BSX.prevMMC[0x03])
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{
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map_psram_mirror_sub(0x10);
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map_psram_mirror_sub(0x50);
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}
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if (BSX.MMC[0x04])
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if (BSX.prevMMC[0x04])
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{
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map_psram_mirror_sub(0x90);
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map_psram_mirror_sub(0xD0);
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}
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}
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else if (!BSX.MMC[0x05] && BSX.MMC[0x06])
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else if (!BSX.prevMMC[0x05] && BSX.prevMMC[0x06])
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{
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//Map PSRAM to 60-67/E0-E7
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if (BSX.MMC[0x03])
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//Map PSRAM to 20-27/60-67 / A0-A7/E0-E7
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if (BSX.prevMMC[0x03])
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{
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map_psram_mirror_sub(0x20);
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map_psram_mirror_sub(0x60);
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}
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if (BSX.MMC[0x04])
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if (BSX.prevMMC[0x04])
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{
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map_psram_mirror_sub(0xA0);
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map_psram_mirror_sub(0xE0);
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}
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}
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else
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{
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//Map PSRAM to 70-77/F0-F7
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if (BSX.MMC[0x03])
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//Map PSRAM to 30-37/70-77 / B0-B7/F0-F7
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if (BSX.prevMMC[0x03])
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{
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map_psram_mirror_sub(0x30);
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map_psram_mirror_sub(0x70);
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}
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if (BSX.MMC[0x04])
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if (BSX.prevMMC[0x04])
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{
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map_psram_mirror_sub(0xB0);
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map_psram_mirror_sub(0xF0);
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}
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}
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if (BSX.MMC[0x03])
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if (BSX.prevMMC[0x03])
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{
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//Map PSRAM to 20->3F:6000-7FFF
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for (c = 0x200; c < 0x400; c += 16)
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@ -551,7 +600,7 @@ static void BSX_Map_PSRAM(void)
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}
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}
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if (BSX.MMC[0x04])
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if (BSX.prevMMC[0x04])
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{
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//Map PSRAM to A0->BF:6000-7FFF
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for (c = 0xA00; c < 0xC00; c += 16)
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@ -572,7 +621,7 @@ static void BSX_Map_BIOS (void)
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int i,c;
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// Banks 00->1F:8000-FFFF
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if (BSX.MMC[0x07])
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if (BSX.prevMMC[0x07])
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{
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for (c = 0; c < 0x200; c += 16)
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{
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@ -586,7 +635,7 @@ static void BSX_Map_BIOS (void)
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}
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// Banks 80->9F:8000-FFFF
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if (BSX.MMC[0x08])
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if (BSX.prevMMC[0x08])
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{
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for (c = 0; c < 0x200; c += 16)
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{
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@ -628,16 +677,16 @@ static void BSX_Map (void)
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MapROM = FlashROM;
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FlashSize = FLASH_SIZE;
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BSX_Map_SNES();
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if (BSX.MMC[0x02])
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if (BSX.prevMMC[0x02])
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BSX_Map_HiROM();
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else
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BSX_Map_LoROM();
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BSX_Map_FlashIO();
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BSX_Map_PSRAM();
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BSX_Map_SNES();
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BSX_Map_SRAM();
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BSX_Map_RAM();
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@ -653,22 +702,24 @@ static void BSX_Map (void)
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static uint8 BSX_Get_Bypass_FlashIO (uint32 offset)
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{
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MapROM = FlashROM = Memory.ROM + Multi.cartOffsetB;
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//For games other than BS-X
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FlashROM = Memory.ROM + Multi.cartOffsetB;
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if (BSX.MMC[0x02])
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return (MapROM[offset & 0x0FFFFF]);
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if (BSX.prevMMC[0x02])
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return (FlashROM[offset & 0x0FFFFF]);
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else
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return (MapROM[(offset & 0x1F0000) >> 1 | (offset & 0x7FFF)]);
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return (FlashROM[(offset & 0x1F0000) >> 1 | (offset & 0x7FFF)]);
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}
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static void BSX_Set_Bypass_FlashIO (uint32 offset, uint8 byte)
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{
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MapROM = FlashROM = Memory.ROM + Multi.cartOffsetB;
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//For games other than BS-X
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FlashROM = Memory.ROM + Multi.cartOffsetB;
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if (BSX.MMC[0x02])
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MapROM[offset & 0x0FFFFF] = MapROM[offset & 0x0FFFFF] & byte;
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if (BSX.prevMMC[0x02])
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FlashROM[offset & 0x0FFFFF] = FlashROM[offset & 0x0FFFFF] & byte;
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else
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MapROM[(offset & 0x1F0000) >> 1 | (offset & 0x7FFF)] = MapROM[(offset & 0x1F0000) >> 1 | (offset & 0x7FFF)] & byte;
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FlashROM[(offset & 0x1F0000) >> 1 | (offset & 0x7FFF)] = FlashROM[(offset & 0x1F0000) >> 1 | (offset & 0x7FFF)] & byte;
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}
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uint8 S9xGetBSX (uint32 address)
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@ -678,18 +729,17 @@ uint8 S9xGetBSX (uint32 address)
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uint8 t = 0;
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// MMC
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if ((bank >= 0x01 && bank <= 0x0E))
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if ((bank >= 0x01 && bank <= 0x0E) && ((address & 0xF000) == 0x5000))
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return (BSX.MMC[bank]);
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// Flash IO
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if (bank >= 0xC0)
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{
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// default: read-through mode
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t = BSX_Get_Bypass_FlashIO(address);
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// Flash Mapping
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// note: may be more registers, purposes unknown
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switch (offset)
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{
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// default: read-through mode
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t = BSX_Get_Bypass_FlashIO(address);
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// note: may be more registers, purposes unknown
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switch (offset)
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{
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case 0x0002:
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case 0x8002:
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if (BSX.flash_bsr)
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@ -721,14 +771,12 @@ uint8 S9xGetBSX (uint32 address)
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if (BSX.read_enable)
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t = flashcard[offset - 0xFF00];
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break;
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}
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if (BSX.flash_csr)
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{
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t = 0x80; // Compatible Status Register
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BSX.flash_csr = false;
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}
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}
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if (BSX.flash_csr)
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{
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t = 0x80; // Compatible Status Register
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BSX.flash_csr = false;
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}
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return (t);
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@ -739,134 +787,139 @@ void S9xSetBSX (uint8 byte, uint32 address)
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uint8 bank = (address >> 16) & 0xFF;
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// MMC
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if ((bank >= 0x01 && bank <= 0x0E))
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if ((bank >= 0x01 && bank <= 0x0E) && ((address & 0xF000) == 0x5000))
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{
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BSX.MMC[bank] = byte;
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if (bank == 0x0E)
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//Avoid updating the memory map when it is not needed
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if (bank == 0x0E && BSX.dirty)
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{
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BSX_Map();
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BSX.dirty = FALSE;
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}
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else if (bank != 0x0E && BSX.MMC[bank] != byte)
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{
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BSX.dirty = TRUE;
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}
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BSX.MMC[bank] = byte;
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}
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// Flash IO
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if (bank >= 0xC0)
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// Write to Flash
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if (BSX.write_enable)
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{
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// Write to Flash
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if (BSX.write_enable)
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{
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BSX_Set_Bypass_FlashIO(address, byte);
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//MapROM[address & 0x3FFFFF] = byte;
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BSX_Set_Bypass_FlashIO(address, byte);
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BSX.write_enable = false;
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return;
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}
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// Flash Command Handling
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//Memory Pack Type 1 & 3 & 4
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BSX.flash_command <<= 8;
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BSX.flash_command |= byte;
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switch (BSX.flash_command & 0xFF)
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{
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case 0x00:
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case 0xFF:
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//Reset to normal
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BSX.flash_enable = false;
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BSX.flash_bsr = false;
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BSX.flash_csr = false;
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BSX.flash_gsr = false;
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BSX.read_enable = false;
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BSX.write_enable = false;
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return;
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}
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BSX.flash_cmd_done = true;
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break;
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// Flash Command Handling
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if (BSX.MMC[0xC]) {
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//Memory Pack Type 1 & 3 & 4
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BSX.flash_command <<= 8;
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BSX.flash_command |= byte;
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case 0x10:
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case 0x40:
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//Write Byte
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BSX.flash_enable = false;
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BSX.flash_bsr = false;
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BSX.flash_csr = true;
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BSX.flash_gsr = false;
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BSX.read_enable = false;
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BSX.write_enable = true;
|
||||
BSX.flash_cmd_done = true;
|
||||
break;
|
||||
|
||||
switch (BSX.flash_command & 0xFF)
|
||||
case 0x50:
|
||||
//Clear Status Register
|
||||
BSX.flash_enable = false;
|
||||
BSX.flash_bsr = false;
|
||||
BSX.flash_csr = false;
|
||||
BSX.flash_gsr = false;
|
||||
BSX.flash_cmd_done = true;
|
||||
break;
|
||||
|
||||
case 0x70:
|
||||
//Read CSR
|
||||
BSX.flash_enable = false;
|
||||
BSX.flash_bsr = false;
|
||||
BSX.flash_csr = true;
|
||||
BSX.flash_gsr = false;
|
||||
BSX.read_enable = false;
|
||||
BSX.write_enable = false;
|
||||
BSX.flash_cmd_done = true;
|
||||
break;
|
||||
|
||||
case 0x71:
|
||||
//Read Extended Status Registers (Page and Global)
|
||||
BSX.flash_enable = false;
|
||||
BSX.flash_bsr = true;
|
||||
BSX.flash_csr = false;
|
||||
BSX.flash_gsr = true;
|
||||
BSX.read_enable = false;
|
||||
BSX.write_enable = false;
|
||||
BSX.flash_cmd_done = true;
|
||||
break;
|
||||
|
||||
case 0x75:
|
||||
//Show Page Buffer / Vendor Info
|
||||
BSX.flash_csr = false;
|
||||
BSX.read_enable = true;
|
||||
BSX.flash_cmd_done = true;
|
||||
break;
|
||||
|
||||
case 0xD0:
|
||||
//DO COMMAND
|
||||
switch (BSX.flash_command & 0xFFFF)
|
||||
{
|
||||
case 0x00:
|
||||
case 0xFF:
|
||||
//Reset to normal
|
||||
BSX.flash_enable = false;
|
||||
BSX.flash_bsr = false;
|
||||
BSX.flash_csr = false;
|
||||
BSX.flash_gsr = false;
|
||||
BSX.read_enable = false;
|
||||
BSX.write_enable = false;
|
||||
BSX.flash_cmd_done = true;
|
||||
break;
|
||||
|
||||
case 0x10:
|
||||
case 0x40:
|
||||
//Write Byte
|
||||
BSX.flash_enable = false;
|
||||
BSX.flash_bsr = false;
|
||||
BSX.flash_csr = true;
|
||||
BSX.flash_gsr = false;
|
||||
BSX.read_enable = false;
|
||||
BSX.write_enable = true;
|
||||
BSX.flash_cmd_done = true;
|
||||
break;
|
||||
|
||||
case 0x50:
|
||||
//Clear Status Register
|
||||
BSX.flash_enable = false;
|
||||
BSX.flash_bsr = false;
|
||||
BSX.flash_csr = false;
|
||||
BSX.flash_gsr = false;
|
||||
BSX.flash_cmd_done = true;
|
||||
break;
|
||||
|
||||
case 0x70:
|
||||
//Read CSR
|
||||
BSX.flash_enable = false;
|
||||
BSX.flash_bsr = false;
|
||||
BSX.flash_csr = true;
|
||||
BSX.flash_gsr = false;
|
||||
BSX.read_enable = false;
|
||||
BSX.write_enable = false;
|
||||
BSX.flash_cmd_done = true;
|
||||
break;
|
||||
|
||||
case 0x71:
|
||||
//Read Extended Status Registers (Page and Global)
|
||||
BSX.flash_enable = false;
|
||||
BSX.flash_bsr = true;
|
||||
BSX.flash_csr = false;
|
||||
BSX.flash_gsr = true;
|
||||
BSX.read_enable = false;
|
||||
BSX.write_enable = false;
|
||||
BSX.flash_cmd_done = true;
|
||||
break;
|
||||
|
||||
case 0x75:
|
||||
//Show Page Buffer / Vendor Info
|
||||
BSX.flash_csr = false;
|
||||
BSX.read_enable = true;
|
||||
BSX.flash_cmd_done = true;
|
||||
break;
|
||||
|
||||
case 0xD0:
|
||||
//DO COMMAND
|
||||
switch (BSX.flash_command & 0xFFFF)
|
||||
{
|
||||
case 0x20D0: //Block Erase
|
||||
uint32 x;
|
||||
for (x = 0; x < 0x10000; x++) {
|
||||
//BSX_Set_Bypass_FlashIO(((address & 0xFF0000) + x), 0xFF);
|
||||
if (BSX.MMC[0x02])
|
||||
MapROM[(address & 0x0F0000) + x] = 0xFF;
|
||||
else
|
||||
MapROM[((address & 0x1E0000) >> 1) + x] = 0xFF;
|
||||
}
|
||||
break;
|
||||
|
||||
case 0xA7D0: //Chip Erase (ONLY IN TYPE 1 AND 4)
|
||||
if ((flashcard[6] & 0xF0) == 0x10 || (flashcard[6] & 0xF0) == 0x40)
|
||||
{
|
||||
uint32 x;
|
||||
for (x = 0; x < FLASH_SIZE; x++) {
|
||||
//BSX_Set_Bypass_FlashIO(x, 0xFF);
|
||||
MapROM[x] = 0xFF;
|
||||
}
|
||||
}
|
||||
break;
|
||||
|
||||
case 0x38D0: //Flashcart Reset
|
||||
break;
|
||||
case 0x20D0: //Block Erase
|
||||
uint32 x;
|
||||
for (x = 0; x < 0x10000; x++) {
|
||||
//BSX_Set_Bypass_FlashIO(((address & 0xFF0000) + x), 0xFF);
|
||||
if (BSX.MMC[0x02])
|
||||
FlashROM[(address & 0x0F0000) + x] = 0xFF;
|
||||
else
|
||||
FlashROM[((address & 0x1E0000) >> 1) + x] = 0xFF;
|
||||
}
|
||||
break;
|
||||
|
||||
case 0xA7D0: //Chip Erase (ONLY IN TYPE 1 AND 4)
|
||||
if ((flashcard[6] & 0xF0) == 0x10 || (flashcard[6] & 0xF0) == 0x40)
|
||||
{
|
||||
uint32 x;
|
||||
for (x = 0; x < FLASH_SIZE; x++) {
|
||||
//BSX_Set_Bypass_FlashIO(x, 0xFF);
|
||||
FlashROM[x] = 0xFF;
|
||||
}
|
||||
}
|
||||
break;
|
||||
|
||||
case 0x38D0: //Flashcart Reset
|
||||
break;
|
||||
}
|
||||
}
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
void S9xBSXSetStream1 (uint8 count)
|
||||
{
|
||||
if (BSX.sat_stream1.is_open())
|
||||
BSX.sat_stream1.close(); //If Stream1 already opened for one file: Close it.
|
||||
BSX.sat_stream1.close(); //If Stream already opened for one file: Close it.
|
||||
|
||||
char path[PATH_MAX + 1], name[PATH_MAX + 1];
|
||||
|
||||
|
@ -884,7 +937,7 @@ void S9xBSXSetStream1 (uint8 count)
|
|||
long str1size = BSX.sat_stream1.tellg();
|
||||
BSX.sat_stream1.seekg(0, BSX.sat_stream1.beg);
|
||||
float QueueSize = str1size / 22.;
|
||||
BSX.PPU[0x218A - BSXPPUBASE] = (uint8)(ceil(QueueSize));
|
||||
BSX.sat_stream1_queue = (uint16)(ceil(QueueSize));
|
||||
BSX.PPU[0x218D - BSXPPUBASE] = 0;
|
||||
BSX.sat_stream1_first = TRUE;
|
||||
BSX.sat_stream1_loaded = TRUE;
|
||||
|
@ -898,7 +951,7 @@ void S9xBSXSetStream1 (uint8 count)
|
|||
void S9xBSXSetStream2 (uint8 count)
|
||||
{
|
||||
if (BSX.sat_stream2.is_open())
|
||||
BSX.sat_stream2.close(); //If Stream1 already opened for one file: Close it.
|
||||
BSX.sat_stream2.close(); //If Stream already opened for one file: Close it.
|
||||
|
||||
char path[PATH_MAX + 1], name[PATH_MAX + 1];
|
||||
|
||||
|
@ -916,7 +969,7 @@ void S9xBSXSetStream2 (uint8 count)
|
|||
long str2size = BSX.sat_stream2.tellg();
|
||||
BSX.sat_stream2.seekg(0, BSX.sat_stream2.beg);
|
||||
float QueueSize = str2size / 22.;
|
||||
BSX.PPU[0x2190 - BSXPPUBASE] = (uint8)(ceil(QueueSize));
|
||||
BSX.sat_stream2_queue = (uint16)(ceil(QueueSize));
|
||||
BSX.PPU[0x2193 - BSXPPUBASE] = 0;
|
||||
BSX.sat_stream2_first = TRUE;
|
||||
BSX.sat_stream2_loaded = TRUE;
|
||||
|
@ -996,7 +1049,7 @@ uint8 S9xGetBSXPPU (uint16 address)
|
|||
break;
|
||||
}
|
||||
|
||||
if (BSX.PPU[0x218A - BSXPPUBASE] <= 0)
|
||||
if (BSX.sat_stream1_queue <= 0)
|
||||
{
|
||||
BSX.sat_stream1_count++;
|
||||
S9xBSXSetStream1(BSX.sat_stream1_count - 1);
|
||||
|
@ -1009,7 +1062,14 @@ uint8 S9xGetBSXPPU (uint16 address)
|
|||
}
|
||||
|
||||
if (BSX.sat_stream1_loaded)
|
||||
{
|
||||
//Lock at 0x7F for bigger packets
|
||||
if (BSX.sat_stream1_queue >= 128)
|
||||
BSX.PPU[0x218A - BSXPPUBASE] = 0x7F;
|
||||
else
|
||||
BSX.PPU[0x218A - BSXPPUBASE] = BSX.sat_stream1_queue;
|
||||
t = BSX.PPU[0x218A - BSXPPUBASE];
|
||||
}
|
||||
else
|
||||
t = 0;
|
||||
break;
|
||||
|
@ -1033,9 +1093,9 @@ uint8 S9xGetBSXPPU (uint16 address)
|
|||
BSX.sat_stream1_first = FALSE;
|
||||
}
|
||||
|
||||
BSX.PPU[0x218A - BSXPPUBASE]--;
|
||||
BSX.sat_stream1_queue--;
|
||||
|
||||
if (BSX.PPU[0x218A - BSXPPUBASE] == 0)
|
||||
if (BSX.sat_stream1_queue == 0)
|
||||
{
|
||||
//Last packet
|
||||
temp |= 0x80;
|
||||
|
@ -1107,7 +1167,7 @@ uint8 S9xGetBSXPPU (uint16 address)
|
|||
break;
|
||||
}
|
||||
|
||||
if (BSX.PPU[0x2190 - BSXPPUBASE] <= 0)
|
||||
if (BSX.sat_stream2_queue <= 0)
|
||||
{
|
||||
BSX.sat_stream2_count++;
|
||||
S9xBSXSetStream2(BSX.sat_stream2_count - 1);
|
||||
|
@ -1120,7 +1180,13 @@ uint8 S9xGetBSXPPU (uint16 address)
|
|||
}
|
||||
|
||||
if (BSX.sat_stream2_loaded)
|
||||
{
|
||||
if (BSX.sat_stream2_queue >= 128)
|
||||
BSX.PPU[0x2190 - BSXPPUBASE] = 0x7F;
|
||||
else
|
||||
BSX.PPU[0x2190 - BSXPPUBASE] = BSX.sat_stream2_queue;
|
||||
t = BSX.PPU[0x2190 - BSXPPUBASE];
|
||||
}
|
||||
else
|
||||
t = 0;
|
||||
break;
|
||||
|
@ -1144,9 +1210,9 @@ uint8 S9xGetBSXPPU (uint16 address)
|
|||
BSX.sat_stream2_first = FALSE;
|
||||
}
|
||||
|
||||
BSX.PPU[0x2190 - BSXPPUBASE]--;
|
||||
BSX.sat_stream2_queue--;
|
||||
|
||||
if (BSX.PPU[0x2190 - BSXPPUBASE] == 0)
|
||||
if (BSX.sat_stream2_queue == 0)
|
||||
{
|
||||
//Last packet
|
||||
temp |= 0x80;
|
||||
|
@ -1479,6 +1545,10 @@ void S9xResetBSX (void)
|
|||
BSX.MMC[0x07] = BSX.MMC[0x08] = 0x80;
|
||||
BSX.MMC[0x0E] = 0x80;
|
||||
|
||||
// default register values
|
||||
BSX.PPU[0x2196 - BSXPPUBASE] = 0x10;
|
||||
BSX.PPU[0x2197 - BSXPPUBASE] = 0x80;
|
||||
|
||||
// stream reset
|
||||
BSX.sat_pf_latch1_enable = BSX.sat_dt_latch1_enable = FALSE;
|
||||
BSX.sat_pf_latch2_enable = BSX.sat_dt_latch2_enable = FALSE;
|
||||
|
|
Loading…
Reference in New Issue