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memadr is only updated after writing to reg 5

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This commit is contained in:
Michaël Banaan Ananas 2011-08-07 02:53:02 +00:00
parent 71a26f0d5c
commit 40ba5014a3
1 changed files with 2 additions and 9 deletions
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11
src/emu/sound/ymf278b.c
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@ -631,16 +631,9 @@ static void ymf278b_C_w(YMF278BChip *chip, UINT8 reg, UINT8 data)
chip->memmode = data&3;
break;
case 0x03:
chip->memadr = (chip->memadr & 0x00ffff) | ((data &0x3f) << 16);
break;
case 0x04:
chip->memadr = (chip->memadr & 0x3f00ff) | (data << 8);
break;
case 0x05:
chip->memadr = (chip->memadr & 0x3fff00) | data;
// set memory address
chip->memadr = (chip->pcmregs[3] & 0x3f) << 16 | chip->pcmregs[4] << 8 | data;
break;
case 0x06: