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gambatte: make RTC run at the correct 59.7fps instead of 60fps

This commit is contained in:
goyuken 2014-05-12 04:08:22 +00:00
parent f6243d919b
commit 93b710e4ab
1 changed files with 9 additions and 6 deletions
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15
BizHawk.Emulation.Cores/Consoles/Nintendo/Gameboy/Gambatte.cs
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@ -5,6 +5,7 @@ using System.IO;
using BizHawk.Common;
using BizHawk.Emulation.Common;
using Newtonsoft.Json;
using System.ComponentModel;
namespace BizHawk.Emulation.Cores.Nintendo.Gameboy
{
@ -43,10 +44,12 @@ namespace BizHawk.Emulation.Cores.Nintendo.Gameboy
uint GetCurrentTime()
{
uint fn = (uint)Frame;
fn /= 60; // exactly 60 fps. in case you feel bad about it, remember that we're not exactly tracking cpu cycles either.
ulong fn = (ulong)Frame;
// as we're exactly tracking cpu cycles, this can be pretty accurate
fn *= 4389;
fn /= 262144;
fn += zerotime;
return fn;
return (uint)fn;
}
public Gameboy(CoreComm comm, GameInfo game, byte[] romdata, object Settings, object SyncSettings)
@ -966,11 +969,11 @@ namespace BizHawk.Emulation.Cores.Nintendo.Gameboy
public class GambatteSyncSettings
{
[System.ComponentModel.Description("Force the game to run on DMG hardware, even if it's detected as a CGB game. Relevant for games that are \"CGB Enhanced\" but do not require CGB.")]
[Description("Force the game to run on DMG hardware, even if it's detected as a CGB game. Relevant for games that are \"CGB Enhanced\" but do not require CGB.")]
public bool ForceDMG { get; set; }
[System.ComponentModel.Description("Emulate GBA hardware running a CGB game, instead of CGB hardware. Relevant only for titles that detect the presense of a GBA, such as Shantae.")]
[Description("Emulate GBA hardware running a CGB game, instead of CGB hardware. Relevant only for titles that detect the presense of a GBA, such as Shantae.")]
public bool GBACGB { get; set; }
[System.ComponentModel.Description("Use special compatibility hacks for certain multicart games. Relevant only for specific multicarts.")]
[Description("Use special compatibility hacks for certain multicart games. Relevant only for specific multicarts.")]
public bool MulticartCompat { get; set; }
public static GambatteSyncSettings GetDefaults()