20 lines
509 B
C#
20 lines
509 B
C#
|
namespace Essgee.Emulation.Audio
|
|||
|
|
{
|
|||
|
|
public class SegaSMSPSG : SN76489
|
|||
|
|
{
|
|||
|
|
/* LFSR is 16 bits, tapped bits are 0 and 3 (mask 0x0009), going into bit 15 */
|
|||
|
|
protected override ushort noiseLfsrMask => 0xFFFF;
|
|||
|
|
protected override ushort noiseTappedBits => 0x0009;
|
|||
|
|
protected override int noiseBitShift => 15;
|
|||
|
|
|
|||
|
|
public SegaSMSPSG() : base() { }
|
|||
|
|
|
|||
|
|
public override void Reset()
|
|||
|
|
{
|
|||
|
|
base.Reset();
|
|||
|
|
|
|||
|
|
noiseLfsr = 0x8000;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|