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redesign main emu loop to use timestamps instead of being a trainwreck

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* cleaner code
* faster in some cases
* more accurate (on-demand compensation for timers and GPU)
* less prone to desyncs
* overall betterer
This commit is contained in:
StapleButter
2019-01-05 05:28:58 +01:00
parent 90f2c0834e
commit 669247e8c8
14 changed files with 360 additions and 412 deletions
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18
src/ARM.h
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@ -42,12 +42,6 @@ public:
virtual void DoSavestate(Savestate* file);
void SetClockShift(u32 shift)
{
ClockShift = shift;
ClockDiffMask = (1<<shift) - 1;
}
virtual void JumpTo(u32 addr, bool restorecpsr = false) = 0;
void RestoreCPSR();
@ -67,7 +61,7 @@ public:
}
}
virtual s32 Execute() = 0;
virtual void Execute() = 0;
bool CheckCondition(u32 code)
{
@ -122,13 +116,7 @@ public:
u32 Num;
// shift relative to system clock
// 0=33MHz 1=66MHz 2=133MHz
u32 ClockShift;
u32 ClockDiffMask;
s32 Cycles;
s32 CyclesToRun;
u32 Halted;
u32 CodeRegion;
@ -170,7 +158,7 @@ public:
void PrefetchAbort();
void DataAbort();
s32 Execute();
void Execute();
// all code accesses are forced nonseq 32bit
u32 CodeRead32(u32 addr, bool branch);
@ -287,7 +275,7 @@ public:
void JumpTo(u32 addr, bool restorecpsr = false);
s32 Execute();
void Execute();
u16 CodeRead16(u32 addr)
{