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get rid of DTCMSize

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This commit is contained in:
RSDuck
2021-10-29 01:35:22 +02:00
parent 635a47014f
commit 6c2ea93173
3 changed files with 8 additions and 10 deletions
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2
src/ARM.h
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@ -269,7 +269,7 @@ public:
// for aarch64 JIT they need to go up here // for aarch64 JIT they need to go up here
// to be addressable by a 12-bit immediate // to be addressable by a 12-bit immediate
u32 ITCMSize; u32 ITCMSize;
u32 DTCMBase, DTCMMask, DTCMSize; u32 DTCMBase, DTCMMask;
s32 RegionCodeCycles; s32 RegionCodeCycles;
u8 ITCM[ITCMPhysicalSize]; u8 ITCM[ITCMPhysicalSize];

14
src/ARMJIT_Memory.cpp
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@ -372,7 +372,7 @@ struct Mapping
void Unmap(int region) void Unmap(int region)
{ {
u32 dtcmStart = NDS::ARM9->DTCMBase; u32 dtcmStart = NDS::ARM9->DTCMBase;
u32 dtcmSize = NDS::ARM9->DTCMSize; u32 dtcmSize = ~NDS::ARM9->DTCMMask + 1;
bool skipDTCM = Num == 0 && region != memregion_DTCM; bool skipDTCM = Num == 0 && region != memregion_DTCM;
u8* statuses = Num == 0 ? MappingStatus9 : MappingStatus7; u8* statuses = Num == 0 ? MappingStatus9 : MappingStatus7;
u32 offset = 0; u32 offset = 0;
@ -453,8 +453,7 @@ void SetCodeProtection(int region, u32 offset, bool protect)
u32 effectiveAddr = mapping.Addr + (offset - mapping.LocalOffset); u32 effectiveAddr = mapping.Addr + (offset - mapping.LocalOffset);
if (mapping.Num == 0 if (mapping.Num == 0
&& region != memregion_DTCM && region != memregion_DTCM
&& effectiveAddr >= NDS::ARM9->DTCMBase && (effectiveAddr & NDS::ARM9->DTCMMask) == NDS::ARM9->DTCMBase)
&& effectiveAddr < (NDS::ARM9->DTCMBase + NDS::ARM9->DTCMSize))
continue; continue;
u8* states = (u8*)(mapping.Num == 0 ? MappingStatus9 : MappingStatus7); u8* states = (u8*)(mapping.Num == 0 ? MappingStatus9 : MappingStatus7);
@ -481,7 +480,8 @@ void RemapDTCM(u32 newBase, u32 newSize)
// this first part could be made more efficient // this first part could be made more efficient
// by unmapping DTCM first and then map the holes // by unmapping DTCM first and then map the holes
u32 oldDTCMBase = NDS::ARM9->DTCMBase; u32 oldDTCMBase = NDS::ARM9->DTCMBase;
u32 oldDTCBEnd = oldDTCMBase + NDS::ARM9->DTCMSize; u32 oldDTCMSize = ~NDS::ARM9->DTCMMask + 1;
u32 oldDTCBEnd = oldDTCMBase + NDS::ARM9->DTCMMask;
u32 newEnd = newBase + newSize; u32 newEnd = newBase + newSize;
@ -501,7 +501,7 @@ void RemapDTCM(u32 newBase, u32 newSize)
printf("unmapping %d %x %x %x %x\n", region, mapping.Addr, mapping.Size, mapping.Num, mapping.LocalOffset); printf("unmapping %d %x %x %x %x\n", region, mapping.Addr, mapping.Size, mapping.Num, mapping.LocalOffset);
bool overlap = (NDS::ARM9->DTCMSize > 0 && oldDTCMBase < end && oldDTCBEnd > start) bool overlap = (oldDTCMSize > 0 && oldDTCMBase < end && oldDTCBEnd > start)
|| (newSize > 0 && newBase < end && newEnd > start); || (newSize > 0 && newBase < end && newEnd > start);
if (mapping.Num == 0 && overlap) if (mapping.Num == 0 && overlap)
@ -588,7 +588,7 @@ bool MapAtAddress(u32 addr)
bool isExecutable = ARMJIT::CodeMemRegions[region]; bool isExecutable = ARMJIT::CodeMemRegions[region];
u32 dtcmStart = NDS::ARM9->DTCMBase; u32 dtcmStart = NDS::ARM9->DTCMBase;
u32 dtcmSize = NDS::ARM9->DTCMSize; u32 dtcmSize = ~NDS::ARM9->DTCMMask + 1;
u32 dtcmEnd = dtcmStart + dtcmSize; u32 dtcmEnd = dtcmStart + dtcmSize;
#ifndef __SWITCH__ #ifndef __SWITCH__
#ifndef _WIN32 #ifndef _WIN32
@ -1067,7 +1067,7 @@ int ClassifyAddress9(u32 addr)
{ {
return memregion_ITCM; return memregion_ITCM;
} }
else if (addr >= NDS::ARM9->DTCMBase && addr < (NDS::ARM9->DTCMBase + NDS::ARM9->DTCMSize)) else if ((addr & NDS::ARM9->DTCMMask) == NDS::ARM9->DTCMBase)
{ {
return memregion_DTCM; return memregion_DTCM;
} }

2
src/CP15.cpp
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@ -51,7 +51,6 @@ void ARMv5::CP15Reset()
ITCMSize = 0; ITCMSize = 0;
DTCMBase = 0xFFFFFFFF; DTCMBase = 0xFFFFFFFF;
DTCMMask = 0; DTCMMask = 0;
DTCMSize = 0;
memset(ICache, 0, 0x2000); memset(ICache, 0, 0x2000);
ICacheInvalidateAll(); ICacheInvalidateAll();
@ -127,7 +126,6 @@ void ARMv5::UpdateDTCMSetting()
#endif #endif
DTCMBase = newDTCMBase; DTCMBase = newDTCMBase;
DTCMMask = newDTCMMask; DTCMMask = newDTCMMask;
DTCMSize = newDTCMSize;
} }
} }