The-Homebrew-Cloud/Genesis-Plus-GX
2
0
Fork 0
mirror of https://github.com/ekeeke/Genesis-Plus-GX.git synced 2024-11-10 21:05:12 +01:00
Code Issues Packages Projects Releases Wiki Activity

[Core/Sound] Nuked OPN2: Minor PCM mode tweak.

Browse Source
This commit is contained in:
nukeykt 2017-10-10 23:51:58 +09:00
parent 5ec1cd099f
commit eff16f5a81
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
core/sound/ym3438.c
View File

@ -436,7 +436,7 @@ void OPN2_DoRegWrite(ym3438_t *chip)
break;
case 0x2a: /* DAC data */
chip->dacdata &= 0x01;
chip->dacdata |= chip->write_data << 1;
chip->dacdata |= (chip->write_data ^ 0x80) << 1;
break;
case 0x2b: /* DAC enable */
chip->dacen = chip->write_data >> 7;
@ -984,7 +984,7 @@ void OPN2_ChOutput(ym3438_t *chip)
/* Ch 6 */
if (((cycles >> 2) == 1 && chip->dacen) || test_dac)
{
out = (Bit16s)chip->dacdata ^ 0x100;
out = (Bit16s)chip->dacdata;
out <<= 7;
out >>= 7;
}