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melonDS
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run arm 7 first? 

it's faster...?
This commit is contained in:
Jaklyy 2024-12-16 10:20:10 -05:00
parent c90f10d056
commit 5c5f4364db
1 changed files with 43 additions and 44 deletions
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87
src/NDS.cpp
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@ -1651,89 +1651,88 @@ u32 NDS::RunFrame()
while (Running && GPU.TotalScanlines==0)
{
u64 target = NextTarget();
ARM9Target = target << ARM9ClockShift;
ARM7Target = target;
//ARM7Target = target;
while (std::max(std::max(ARM9Timestamp, DMA9Timestamp), A9ContentionTS << ARM9ClockShift) < ARM9Target)
//while (ARM7Timestamp < ARM7Target)
{
CurCPU = 0;
RunTimers(0);
GPU.GPU3D.Run();
//printf("A7 LOOP: %lli %lli\n", ARM9Timestamp>>ARM9ClockShift, ARM7Timestamp);
CurCPU = 1;
RunTimers(1);
if (ARM9.MRTrack.Type == MainRAMType::Null)
if (ARM7.MRTrack.Type == MainRAMType::Null)
{
if (CPUStop & CPUStop_GXStall)
if (CPUStop & CPUStop_DMA7)
{
// GXFIFO stall
s32 cycles = GPU.GPU3D.CyclesToRunFor();
DMA9Timestamp = std::min(ARM9Target, std::max(ARM9Timestamp+(cycles<<ARM9ClockShift), DMA9Timestamp+(cycles<<ARM9ClockShift)));
}
else if (CPUStop & CPUStop_DMA9)
{
DMAs[0].Run();
if (!(CPUStop & CPUStop_GXStall) && (ARM9.MRTrack.Type == MainRAMType::Null)) DMAs[1].Run();
if (!(CPUStop & CPUStop_GXStall) && (ARM9.MRTrack.Type == MainRAMType::Null)) DMAs[2].Run();
if (!(CPUStop & CPUStop_GXStall) && (ARM9.MRTrack.Type == MainRAMType::Null)) DMAs[3].Run();
DMAs[4].Run();
if (ARM7.MRTrack.Type == MainRAMType::Null) DMAs[5].Run();
if (ARM7.MRTrack.Type == MainRAMType::Null) DMAs[6].Run();
if (ARM7.MRTrack.Type == MainRAMType::Null) DMAs[7].Run();
if (ConsoleType == 1)
{
auto& dsi = dynamic_cast<melonDS::DSi&>(*this);
dsi.RunNDMAs(0);
dsi.RunNDMAs(1);
}
}
else
{
//if (ARM9.abt) ARM9Timestamp = ARM9Target;
ARM9.Execute<cpuMode>();
//if (ARM7.abt > 16) ARM7Timestamp = ARM7Target;
ARM7.Execute<cpuMode>();
}
}
//printf("MAIN LOOP: 9 %lli %08X %08llX %i 7 %lli %08X %08llX %i %i %08X\n", ARM9Timestamp>>ARM9ClockShift, ARM9.PC, ARM9.CurInstr, (u8)ARM9.MRTrack.Type, ARM7Timestamp, ARM7.R[15], ARM7.CurInstr, (u8)ARM7.MRTrack.Type, IME[1], IE[1]);
RunTimers(1);
RunTimers(0);
GPU.GPU3D.Run();
//printf("MAIN LOOP: 9 %lli %08X %08llX %i 7 %lli %08X %08llX %i %i %08X\n", ARM9Timestamp>>ARM9ClockShift, ARM9.PC, ARM9.CurInstr, (u8)ARM9.MRTrack.Type, ARM7Timestamp, ARM7.R[15], ARM7.CurInstr, (u8)ARM7.MRTrack.Type, IME[1], IE[1]);
//if (MainRAMHandle()) break;
MainRAMHandle();
target = std::max(std::max(ARM9Timestamp, DMA9Timestamp) >> ARM9ClockShift, A9ContentionTS);
if (target == ARM7Timestamp) target++;
target = ARM7Timestamp << ARM9ClockShift;//std::max(std::max(ARM9Timestamp, DMA9Timestamp) >> ARM9ClockShift, A9ContentionTS);
if (target <= std::max(std::max(ARM9Timestamp, DMA9Timestamp), A9ContentionTS << ARM9ClockShift)) target = std::max(std::max(ARM9Timestamp, DMA9Timestamp), A9ContentionTS << ARM9ClockShift) + 1;
while (ARM7Timestamp < target)
while (std::max(std::max(ARM9Timestamp, DMA9Timestamp), A9ContentionTS << ARM9ClockShift) < target)
{
ARM7Target = target;
//printf("A7 LOOP: %lli %lli\n", ARM9Timestamp>>ARM9ClockShift, ARM7Timestamp);
CurCPU = 1;
RunTimers(1);
ARM9Target = target;
CurCPU = 0;
RunTimers(0);
GPU.GPU3D.Run();
if (ARM7.MRTrack.Type == MainRAMType::Null)
if (ARM9.MRTrack.Type == MainRAMType::Null)
{
if (CPUStop & CPUStop_DMA7)
if (CPUStop & CPUStop_GXStall)
{
DMAs[4].Run();
if (ARM7.MRTrack.Type == MainRAMType::Null) DMAs[5].Run();
if (ARM7.MRTrack.Type == MainRAMType::Null) DMAs[6].Run();
if (ARM7.MRTrack.Type == MainRAMType::Null) DMAs[7].Run();
// GXFIFO stall
s32 cycles = GPU.GPU3D.CyclesToRunFor();
DMA9Timestamp = std::min(ARM9Target, std::max(ARM9Timestamp+(cycles<<ARM9ClockShift), DMA9Timestamp+(cycles<<ARM9ClockShift)));
}
else if (CPUStop & CPUStop_DMA9)
{
DMAs[0].Run();
if (!(CPUStop & CPUStop_GXStall) && (ARM9.MRTrack.Type == MainRAMType::Null)) DMAs[1].Run();
if (!(CPUStop & CPUStop_GXStall) && (ARM9.MRTrack.Type == MainRAMType::Null)) DMAs[2].Run();
if (!(CPUStop & CPUStop_GXStall) && (ARM9.MRTrack.Type == MainRAMType::Null)) DMAs[3].Run();
if (ConsoleType == 1)
{
auto& dsi = dynamic_cast<melonDS::DSi&>(*this);
dsi.RunNDMAs(1);
dsi.RunNDMAs(0);
}
}
else
{
//if (ARM7.abt > 16) ARM7Timestamp = ARM7Target;
ARM7.Execute<cpuMode>();
//if (ARM9.abt) ARM9Timestamp = ARM9Target;
ARM9.Execute<cpuMode>();
}
}
RunTimers(0);
GPU.GPU3D.Run();
RunTimers(1);
if (!MainRAMHandle()) break;
if (MainRAMHandle()) break;
}
}
RunSystem(target);
RunSystem(target>>ARM9ClockShift);
if (CPUStop & CPUStop_Sleep)
{