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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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17
src/NDS.h
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@ -29,14 +29,6 @@
namespace NDS
{
#ifdef DEBUG_CHECK_DESYNC
extern u64 dbg_CyclesSys;
extern u64 dbg_CyclesARM9;
extern u64 dbg_CyclesTimer9;
extern u64 dbg_CyclesARM7;
extern u64 dbg_CyclesTimer7;
#endif
enum
{
Event_LCD = 0,
@ -56,7 +48,7 @@ enum
typedef struct
{
void (*Func)(u32 param);
s32 WaitCycles;
u64 Timestamp;
u32 Param;
} SchedEvent;
@ -109,6 +101,10 @@ typedef struct
extern u8 ARM9MemTimings[0x40000][4];
extern u8 ARM7MemTimings[0x20000][4];
extern u64 ARM9Timestamp, ARM9Target;
extern u64 ARM7Timestamp, ARM7Target;
extern u32 ARM9ClockShift;
// hax
extern u32 IME[2];
extern u32 IE[2];
@ -182,8 +178,7 @@ bool DMAsRunning(u32 cpu);
void CheckDMAs(u32 cpu, u32 mode);
void StopDMAs(u32 cpu, u32 mode);
void RunTightTimers(u32 cpu, s32 cycles);
void RunLooseTimers(u32 cpu, s32 cycles);
void RunTimers(u32 cpu);
u8 ARM9Read8(u32 addr);
u16 ARM9Read16(u32 addr);