58 lines
1.9 KiB
C#
58 lines
1.9 KiB
C#
namespace VirtualNes.Core
|
|
{
|
|
public struct NesConfig
|
|
{
|
|
public float BaseClock; // NTSC:21477270.0 PAL:21281364.0
|
|
public float CpuClock; // NTSC: 1789772.5 PAL: 1773447.0
|
|
|
|
public int TotalScanLines; // NTSC: 262 PAL: 312
|
|
|
|
public int ScanlineCycles; // NTSC:1364 PAL:1362
|
|
|
|
public int HDrawCycles; // NTSC:1024 PAL:1024
|
|
public int HBlankCycles; // NTSC: 340 PAL: 338
|
|
public int ScanlineEndCycles; // NTSC: 4 PAL: 2
|
|
|
|
public int FrameCycles; // NTSC:29829.52 PAL:35468.94
|
|
public int FrameIrqCycles; // NTSC:29829.52 PAL:35468.94
|
|
|
|
public int FrameRate; // NTSC:60(59.94) PAL:50
|
|
public float FramePeriod; // NTSC:16.683 PAL:20.0
|
|
|
|
public static NesConfig GetNTSC()
|
|
{
|
|
return new NesConfig
|
|
{
|
|
BaseClock = 21477270.0f,
|
|
CpuClock = 1789772.5f,
|
|
TotalScanLines = 262,
|
|
ScanlineCycles = 1364,
|
|
HDrawCycles = 1024,
|
|
HBlankCycles = 340,
|
|
ScanlineEndCycles = 4,
|
|
FrameCycles = 1364 * 262,
|
|
FrameIrqCycles = 29830,
|
|
FrameRate = 60,
|
|
FramePeriod = 1000.0f / 60.0f
|
|
};
|
|
}
|
|
|
|
public static NesConfig GetPAL()
|
|
{
|
|
return new NesConfig
|
|
{
|
|
BaseClock = 26601714.0f,
|
|
CpuClock = 1662607.125f,
|
|
TotalScanLines = 312,
|
|
ScanlineCycles = 1278,
|
|
HDrawCycles = 960,
|
|
HBlankCycles = 318,
|
|
ScanlineEndCycles = 2,
|
|
FrameCycles = 1278 * 312,
|
|
FrameIrqCycles = 33252,
|
|
FrameRate = 50,
|
|
FramePeriod = 1000.0f / 50.0f
|
|
};
|
|
}
|
|
}
|
|
} |