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Change NES ideal framerates 

These are used for realtime and recorded AV output.  They match closely what the core actually does (not idealized values about what the NES framerate ""should"" be.)

Fixes #2460
This commit is contained in:
nattthebear 2020-10-20 18:27:28 -04:00
parent bd64530ce5
commit 1f313b42c8
1 changed files with 9 additions and 7 deletions
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16
src/BizHawk.Emulation.Cores/Consoles/Nintendo/NES/NES.Core.cs
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@ -27,7 +27,9 @@ namespace BizHawk.Emulation.Cores.Nintendo.NES
public bool _irq_apu; //various irq signals that get merged to the cpu irq pin
/// <summary>clock speed of the main cpu in hz</summary>
/// <summary>
/// Clock speed of the main cpu in hz. Used to time audio synthesis, which runs off the cpu clock.
/// </summary>
public int cpuclockrate { get; private set; }
//user configuration
@ -175,9 +177,9 @@ namespace BizHawk.Emulation.Cores.Nintendo.NES
case DisplayType.PAL:
apu = new APU(this, apu, true);
ppu.region = PPU.Region.PAL;
VsyncNum = 50;
VsyncDen = 1;
cpuclockrate = 1662607;
VsyncNum = cpuclockrate * 2;
VsyncDen = 66495;
cpu_sequence = cpu_sequence_PAL;
_display_type = DisplayType.PAL;
ClockRate = 5320342.5;
@ -185,9 +187,9 @@ namespace BizHawk.Emulation.Cores.Nintendo.NES
case DisplayType.NTSC:
apu = new APU(this, apu, false);
ppu.region = PPU.Region.NTSC;
VsyncNum = 39375000;
VsyncDen = 655171;
cpuclockrate = 1789773;
VsyncNum = cpuclockrate * 2;
VsyncDen = 59561;
cpu_sequence = cpu_sequence_NTSC;
ClockRate = 5369318.1818181818181818181818182;
break;
@ -195,9 +197,9 @@ namespace BizHawk.Emulation.Cores.Nintendo.NES
case DisplayType.Dendy:
apu = new APU(this, apu, false);
ppu.region = PPU.Region.Dendy;
VsyncNum = 50;
VsyncDen = 1;
cpuclockrate = 1773448;
VsyncNum = cpuclockrate;
VsyncDen = 35464;
cpu_sequence = cpu_sequence_NTSC;
_display_type = DisplayType.Dendy;
ClockRate = 5320342.5;