ShuriZma
/
melonDS
mirror of https://github.com/melonDS-emu/melonDS.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

JIT A64: fixes 

also update Switch code for latest libnx
This commit is contained in:
RSDuck 2021-01-05 14:36:15 +01:00
parent 25455cb7aa
commit ef75e3cdd1
3 changed files with 38 additions and 31 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
src/ARMJIT_A64/ARMJIT_Compiler.cpp
View File

@ -187,7 +187,8 @@ Compiler::Compiler()
JitRWBase = aligned_alloc(0x1000, JitMemSize);
JitRXStart = (u8*)&__start__ - JitMemSize - 0x1000;
JitRWStart = virtmemReserve(JitMemSize);
virtmemLock();
JitRWStart = virtmemFindAslr(JitMemSize, 0x1000);
MemoryInfo info = {0};
u32 pageInfo = {0};
int i = 0;
@ -214,6 +215,8 @@ Compiler::Compiler()
succeded = R_SUCCEEDED(svcMapProcessMemory(JitRWStart, envGetOwnProcessHandle(), (u64)JitRXStart, JitMemSize));
assert(succeded);
virtmemUnlock();
SetCodeBase((u8*)JitRWStart, (u8*)JitRXStart);
JitMemMainSize = JitMemSize;
#else
@ -426,7 +429,6 @@ Compiler::~Compiler()
{
bool succeded = R_SUCCEEDED(svcUnmapProcessMemory(JitRWStart, envGetOwnProcessHandle(), (u64)JitRXStart, JitMemSize));
assert(succeded);
virtmemFree(JitRWStart, JitMemSize);
succeded = R_SUCCEEDED(svcUnmapProcessCodeMemory(envGetOwnProcessHandle(), (u64)JitRXStart, (u64)JitRWBase, JitMemSize));
assert(succeded);
free(JitRWBase);
@ -753,7 +755,8 @@ JitBlockEntry Compiler::CompileBlock(ARM* cpu, bool thumb, FetchedInstr instrs[]
FixupBranch skipNop = B();
SetJumpTarget(skipExecute);
Comp_AddCycles_C();
if (IrregularCycles)
Comp_AddCycles_C(true);
Comp_BranchSpecialBehaviour(false);

41
src/ARMJIT_A64/ARMJIT_LoadStore.cpp
View File

@ -472,31 +472,24 @@ s32 Compiler::Comp_MemAccessBlock(int rn, BitSet16 regs, bool store, bool preinc
bool compileFastPath = Config::JIT_FastMemory
&& store && !usermode && (CurInstr.Cond() < 0xE || ARMJIT_Memory::IsFastmemCompatible(expectedTarget));
if (decrement)
{
s32 offset = -regsCount * 4 + (preinc ? 0 : 4);
s32 offset = decrement
? -regsCount * 4 + (preinc ? 0 : 4)
: (preinc ? 4 : 0);
if (offset)
{
ADDI2R(W0, MapReg(rn), offset);
ANDI2R(W0, W0, ~3);
}
else
{
else if (compileFastPath)
ANDI2R(W0, MapReg(rn), ~3);
}
}
else
{
ANDI2R(W0, MapReg(rn), ~3);
if (preinc)
ADD(W0, W0, 4);
else
MOV(W0, MapReg(rn));
}
u8* patchFunc;
if (compileFastPath)
{
ptrdiff_t fastPathStart = GetCodeOffset();
ptrdiff_t loadStoreOffsets[16];
ptrdiff_t loadStoreOffsets[8];
MOVP2R(X1, Num == 0 ? ARMJIT_Memory::FastMem9Start : ARMJIT_Memory::FastMem7Start);
ADD(X1, X1, X0);
@ -547,16 +540,19 @@ s32 Compiler::Comp_MemAccessBlock(int rn, BitSet16 regs, bool store, bool preinc
LoadReg(nextReg, second);
loadStoreOffsets[i++] = GetCodeOffset();
if (store)
{
STP(INDEX_SIGNED, first, second, X1, offset);
}
else
{
LDP(INDEX_SIGNED, first, second, X1, offset);
if (!(RegCache.LoadedRegs & (1 << reg)) && !store)
SaveReg(reg, first);
if (!(RegCache.LoadedRegs & (1 << nextReg)) && !store)
SaveReg(nextReg, second);
if (!(RegCache.LoadedRegs & (1 << reg)))
SaveReg(reg, first);
if (!(RegCache.LoadedRegs & (1 << nextReg)))
SaveReg(nextReg, second);
}
offset += 8;
}
@ -566,7 +562,8 @@ s32 Compiler::Comp_MemAccessBlock(int rn, BitSet16 regs, bool store, bool preinc
SwapCodeRegion();
patchFunc = (u8*)GetRXPtr();
patch.PatchFunc = patchFunc;
for (i = 0; i < regsCount; i++)
u32 numLoadStores = i;
for (i = 0; i < numLoadStores; i++)
{
patch.PatchOffset = fastPathStart - loadStoreOffsets[i];
LoadStorePatches[loadStoreOffsets[i]] = patch;

19
src/ARMJIT_Memory.cpp
View File

@ -275,6 +275,7 @@ u8 MappingStatus9[1 << (32-12)];
u8 MappingStatus7[1 << (32-12)];
#if defined(__SWITCH__)
VirtmemReservation* FastMem9Reservation, *FastMem7Reservation;
u8* MemoryBase;
u8* MemoryBaseCodeMem;
#elif defined(_WIN32)
@ -676,7 +677,8 @@ void Init()
{
#if defined(__SWITCH__)
MemoryBase = (u8*)aligned_alloc(0x1000, MemoryTotalSize);
MemoryBaseCodeMem = (u8*)virtmemReserve(MemoryTotalSize);
virtmemLock();
MemoryBaseCodeMem = (u8*)virtmemFindCodeMemory(MemoryTotalSize, 0x1000);
bool succeded = R_SUCCEEDED(svcMapProcessCodeMemory(envGetOwnProcessHandle(), (u64)MemoryBaseCodeMem,
(u64)MemoryBase, MemoryTotalSize));
@ -686,11 +688,15 @@ void Init()
assert(succeded);
// 8 GB of address space, just don't ask...
FastMem9Start = virtmemReserve(AddrSpaceSize);
FastMem9Start = virtmemFindAslr(AddrSpaceSize, 0x1000);
assert(FastMem9Start);
FastMem7Start = virtmemReserve(AddrSpaceSize);
FastMem7Start = virtmemFindAslr(AddrSpaceSize, 0x1000);
assert(FastMem7Start);
FastMem9Reservation = virtmemAddReservation(FastMem9Start, AddrSpaceSize);
FastMem7Reservation = virtmemAddReservation(FastMem7Start, AddrSpaceSize);
virtmemUnlock();
u8* basePtr = MemoryBaseCodeMem;
#elif defined(_WIN32)
ExceptionHandlerHandle = AddVectoredExceptionHandler(1, ExceptionHandler);
@ -775,11 +781,12 @@ void Init()
void DeInit()
{
#if defined(__SWITCH__)
virtmemFree(FastMem9Start, AddrSpaceSize);
virtmemFree(FastMem7Start, AddrSpaceSize);
virtmemLock();
virtmemRemoveReservation(FastMem9Reservation);
virtmemRemoveReservation(FastMem7Reservation);
virtmemUnlock();
svcUnmapProcessCodeMemory(envGetOwnProcessHandle(), (u64)MemoryBaseCodeMem, (u64)MemoryBase, MemoryTotalSize);
virtmemFree(MemoryBaseCodeMem, MemoryTotalSize);
free(MemoryBase);
#elif defined(__APPLE__)
char* fastmemPidName = new char[snprintf(NULL, 0, "melondsfastmem%d", getpid()) + 1];