piwalker/melonDS
1
0
Fork 0
mirror of https://github.com/melonDS-emu/melonDS.git synced 2024-11-14 13:27:41 -07:00
Code Issues Actions 3 Packages Projects Releases Wiki Activity

fix double data aborts with strd

Browse Source
This commit is contained in:
Jaklyy 2024-06-05 10:28:51 -04:00
parent 317a8c61e5
commit 1871c48849
4 changed files with 8 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
src/ARM.cpp
View File

@ -1217,7 +1217,7 @@ bool ARMv4::DataWrite32(u32 addr, u32 val)
return true;
}
bool ARMv4::DataWrite32S(u32 addr, u32 val)
bool ARMv4::DataWrite32S(u32 addr, u32 val, bool dataabort)
{
addr &= ~3;

6
src/ARM.h
View File

@ -135,7 +135,7 @@ public:
virtual bool DataWrite8(u32 addr, u8 val) = 0;
virtual bool DataWrite16(u32 addr, u16 val) = 0;
virtual bool DataWrite32(u32 addr, u32 val) = 0;
virtual bool DataWrite32S(u32 addr, u32 val) = 0;
virtual bool DataWrite32S(u32 addr, u32 val, bool dataabort = false) = 0;
virtual void AddCycles_C() = 0;
virtual void AddCycles_CI(s32 numI) = 0;
@ -256,7 +256,7 @@ public:
bool DataWrite8(u32 addr, u8 val) override;
bool DataWrite16(u32 addr, u16 val) override;
bool DataWrite32(u32 addr, u32 val) override;
bool DataWrite32S(u32 addr, u32 val) override;
bool DataWrite32S(u32 addr, u32 val, bool dataabort = false) override;
void AddCycles_C() override
{
@ -405,7 +405,7 @@ public:
bool DataWrite8(u32 addr, u8 val) override;
bool DataWrite16(u32 addr, u16 val) override;
bool DataWrite32(u32 addr, u32 val) override;
bool DataWrite32S(u32 addr, u32 val) override;
bool DataWrite32S(u32 addr, u32 val, bool dataabort = false) override;
void AddCycles_C() override;
void AddCycles_CI(s32 num) override;
void AddCycles_CDI() override;

4
src/ARMInterpreter_LoadStore.cpp
View File

@ -273,7 +273,7 @@ A_IMPLEMENT_WB_LDRSTR(LDRB)
u32 r = (cpu->CurInstr>>12) & 0xF; \
if (r&1) { r--; printf("!! MISALIGNED STRD %d\n", r+1); } \
bool dataabort = !cpu->DataWrite32(offset, cpu->R[r ]); /* yes, this data abort behavior is on purpose */ \
dataabort |= !cpu->DataWrite32S (offset+4, cpu->R[r+1]); /* no, i dont understand it either */ \
dataabort |= !cpu->DataWrite32S (offset+4, cpu->R[r+1], dataabort); /* no, i dont understand it either */ \
cpu->AddCycles_CD(); \
if (dataabort) return; \
if (cpu->CurInstr & (1<<21)) cpu->R[(cpu->CurInstr>>16) & 0xF] = offset;
@ -284,7 +284,7 @@ A_IMPLEMENT_WB_LDRSTR(LDRB)
u32 r = (cpu->CurInstr>>12) & 0xF; \
if (r&1) { r--; printf("!! MISALIGNED STRD_POST %d\n", r+1); } \
bool dataabort = !cpu->DataWrite32(addr, cpu->R[r ]); \
dataabort |= !cpu->DataWrite32S (addr+4, cpu->R[r+1]); \
dataabort |= !cpu->DataWrite32S (addr+4, cpu->R[r+1], dataabort); \
cpu->AddCycles_CD(); \
if (dataabort) return; \
cpu->R[(cpu->CurInstr>>16) & 0xF] += offset;

4
src/CP15.cpp
View File

@ -1014,11 +1014,11 @@ bool ARMv5::DataWrite32(u32 addr, u32 val)
return true;
}
bool ARMv5::DataWrite32S(u32 addr, u32 val)
bool ARMv5::DataWrite32S(u32 addr, u32 val, bool dataabort)
{
if (!(PU_Map[addr>>12] & 0x02))
{
DataAbort();
if (!dataabort) DataAbort();
return false;
}