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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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10
src/CP15.cpp
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@ -265,7 +265,7 @@ void ARMv5::UpdateRegionTimings(u32 addrstart, u32 addrend)
}
else
{
MemTimings[i][0] = bustimings[2] << ClockShift;
MemTimings[i][0] = bustimings[2] << NDS::ARM9ClockShift;
}
if (pu & 0x10)
@ -276,9 +276,9 @@ void ARMv5::UpdateRegionTimings(u32 addrstart, u32 addrend)
}
else
{
MemTimings[i][1] = bustimings[0] << ClockShift;
MemTimings[i][2] = bustimings[2] << ClockShift;
MemTimings[i][3] = bustimings[3] << ClockShift;
MemTimings[i][1] = bustimings[0] << NDS::ARM9ClockShift;
MemTimings[i][2] = bustimings[2] << NDS::ARM9ClockShift;
MemTimings[i][3] = bustimings[3] << NDS::ARM9ClockShift;
}
}
}
@ -358,7 +358,7 @@ void ARMv5::ICacheLookup(u32 addr)
// ouch :/
//printf("cache miss %08X: %d/%d\n", addr, NDS::ARM9MemTimings[addr >> 14][2], NDS::ARM9MemTimings[addr >> 14][3]);
CodeCycles = (NDS::ARM9MemTimings[addr >> 14][2] + (NDS::ARM9MemTimings[addr >> 14][3] * 7)) << ClockShift;
CodeCycles = (NDS::ARM9MemTimings[addr >> 14][2] + (NDS::ARM9MemTimings[addr >> 14][3] * 7)) << NDS::ARM9ClockShift;
CurICacheLine = ptr;
}