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tcms shouldn't be cacheable

This commit is contained in:
Jaklyy 2024-10-11 02:47:41 -04:00
parent 6b8671d80a
commit a8722d8c56
1 changed files with 145 additions and 174 deletions
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311
src/CP15.cpp
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@ -540,18 +540,8 @@ u32 ARMv5::DCacheLookup(const u32 addr)
// See arm946e-s Rev 1 technical manual, 2.3.15 "Register 15, test State Register")
WriteBufferDrain();
DataCycles = NDS.ARM9MemTimings[tag >> 14][2];
if (addr < ITCMSize)
{
return *(u32*)&ITCM[addr & (ITCMPhysicalSize - 3)];
} else
if ((addr & DTCMMask) == DTCMBase)
{
return *(u32*)&DTCM[addr & (DTCMPhysicalSize - 3)];
} else
{
return BusRead32(addr & ~3);
}
}
DataCycles += 1;
DataRegion = Mem9_DCache;
//Log(LogLevel::Debug, "DCache hit at %08lx returned %08x from set %i, line %i\n", addr, cacheLine[(addr & (ICACHE_LINELENGTH -1)) >> 2], set, id>>2);
@ -567,18 +557,8 @@ u32 ARMv5::DCacheLookup(const u32 addr)
{
WriteBufferDrain();
DataCycles = NDS.ARM9MemTimings[tag >> 14][2];
if (addr < ITCMSize)
{
return *(u32*)&ITCM[addr & (ITCMPhysicalSize - 3)];
} else
if ((addr & DTCMMask) == DTCMBase)
{
return *(u32*)&DTCM[addr & (DTCMPhysicalSize - 3)];
} else
{
return BusRead32(addr & ~3);
}
}
u32 line;
@ -619,18 +599,8 @@ u32 ARMv5::DCacheLookup(const u32 addr)
WriteBufferDrain();
//Log(LogLevel::Debug,"DCache miss, load @ %08x\n", tag);
for (int i = 0; i < DCACHE_LINELENGTH; i+=sizeof(u32))
{
if (tag+i < ITCMSize)
{
ptr[i >> 2] = *(u32*)&ITCM[(tag+i) & (ITCMPhysicalSize - 1)];
} else
if (((tag+i) & DTCMMask) == DTCMBase)
{
ptr[i >> 2] = *(u32*)&DTCM[(tag+i) & (DTCMPhysicalSize - 1)];
} else
{
ptr[i >> 2] = BusRead32(tag+i);
}
//Log(LogLevel::Debug,"DCache store @ %08x: %08x in set %i, line %i\n", tag+i, *(u32*)&ptr[i >> 2], line & 3, line >> 2);
}
@ -1784,6 +1754,17 @@ u32 ARMv5::CodeRead32(u32 addr, bool branch)
return 0;
}
if (addr < ITCMSize)
{
CodeCycles = 1;
if (NDS.ARM9Timestamp < ITCMTimestamp) NDS.ARM9Timestamp = ITCMTimestamp;
NDS.ARM9Timestamp += CodeCycles;
if (NDS.ARM9Timestamp < TimestampActual) NDS.ARM9Timestamp = TimestampActual;
DataRegion = Mem9_Null;
return *(u32*)&ITCM[addr & (ITCMPhysicalSize - 1)];
}
#if !DISABLE_ICACHE
#ifdef JIT_ENABLED
if (!NDS.IsJITEnabled())
@ -1799,17 +1780,6 @@ u32 ARMv5::CodeRead32(u32 addr, bool branch)
}
#endif
if (addr < ITCMSize)
{
CodeCycles = 1;
if (NDS.ARM9Timestamp < ITCMTimestamp) NDS.ARM9Timestamp = ITCMTimestamp;
NDS.ARM9Timestamp += CodeCycles;
if (NDS.ARM9Timestamp < TimestampActual) NDS.ARM9Timestamp = TimestampActual;
DataRegion = Mem9_Null;
return *(u32*)&ITCM[addr & (ITCMPhysicalSize - 1)];
}
CodeCycles = MemTimings[addr >> 12][0];
if (CodeCycles == 0xFF) // cached memory. hax
{
@ -1849,6 +1819,22 @@ bool ARMv5::DataRead8(u32 addr, u32* val)
return false;
}
if (addr < ITCMSize)
{
DataCycles = 1;
ITCMTimestamp = NDS.ARM9Timestamp + DataCycles;
DataRegion = Mem9_ITCM;
*val = *(u8*)&ITCM[addr & (ITCMPhysicalSize - 1)];
return true;
}
if ((addr & DTCMMask) == DTCMBase)
{
DataCycles = 1;
DataRegion = Mem9_DTCM;
*val = *(u8*)&DTCM[addr & (DTCMPhysicalSize - 1)];
return true;
}
#if !DISABLE_DCACHE
#ifdef JIT_ENABLED
if (!NDS.IsJITEnabled())
@ -1866,22 +1852,6 @@ bool ARMv5::DataRead8(u32 addr, u32* val)
}
#endif
if (addr < ITCMSize)
{
DataCycles = 1;
ITCMTimestamp = NDS.ARM9Timestamp + DataCycles;
DataRegion = Mem9_ITCM;
*val = *(u8*)&ITCM[addr & (ITCMPhysicalSize - 1)];
return true;
}
if ((addr & DTCMMask) == DTCMBase)
{
DataCycles = 1;
DataRegion = Mem9_DTCM;
*val = *(u8*)&DTCM[addr & (DTCMPhysicalSize - 1)];
return true;
}
WriteBufferDrain();
NDS.ARM9Timestamp = NDS.ARM9Timestamp + ((1<<NDS.ARM9ClockShift)-1) & ~((1<<NDS.ARM9ClockShift)-1);
@ -1911,22 +1881,6 @@ bool ARMv5::DataRead16(u32 addr, u32* val)
return false;
}
#if !DISABLE_DCACHE
#ifdef JIT_ENABLED
if (!NDS.IsJITEnabled())
#endif
{
if (CP15Control & CP15_CACHE_CR_DCACHEENABLE)
{
if (IsAddressDCachable(addr))
{
DataCycles = 0;
*val = (DCacheLookup(addr) >> (8* (addr & 2))) & 0xffff;
return true;
}
}
}
#endif
addr &= ~1;
if (addr < ITCMSize)
@ -1945,6 +1899,23 @@ bool ARMv5::DataRead16(u32 addr, u32* val)
return true;
}
#if !DISABLE_DCACHE
#ifdef JIT_ENABLED
if (!NDS.IsJITEnabled())
#endif
{
if (CP15Control & CP15_CACHE_CR_DCACHEENABLE)
{
if (IsAddressDCachable(addr))
{
DataCycles = 0;
*val = (DCacheLookup(addr) >> (8* (addr & 2))) & 0xffff;
return true;
}
}
}
#endif
WriteBufferDrain();
NDS.ARM9Timestamp = NDS.ARM9Timestamp + ((1<<NDS.ARM9ClockShift)-1) & ~((1<<NDS.ARM9ClockShift)-1);
@ -1976,6 +1947,22 @@ bool ARMv5::DataRead32(u32 addr, u32* val)
addr &= ~3;
if (addr < ITCMSize)
{
DataCycles = 1;
ITCMTimestamp = NDS.ARM9Timestamp + DataCycles;
DataRegion = Mem9_ITCM;
*val = *(u32*)&ITCM[addr & (ITCMPhysicalSize - 1)];
return true;
}
if ((addr & DTCMMask) == DTCMBase)
{
DataCycles = 1;
DataRegion = Mem9_DTCM;
*val = *(u32*)&DTCM[addr & (DTCMPhysicalSize - 1)];
return true;
}
#if !DISABLE_DCACHE
#ifdef JIT_ENABLED
if (!NDS.IsJITEnabled())
@ -1993,22 +1980,6 @@ bool ARMv5::DataRead32(u32 addr, u32* val)
}
#endif
if (addr < ITCMSize)
{
DataCycles = 1;
ITCMTimestamp = NDS.ARM9Timestamp + DataCycles;
DataRegion = Mem9_ITCM;
*val = *(u32*)&ITCM[addr & (ITCMPhysicalSize - 1)];
return true;
}
if ((addr & DTCMMask) == DTCMBase)
{
DataCycles = 1;
DataRegion = Mem9_DTCM;
*val = *(u32*)&DTCM[addr & (DTCMPhysicalSize - 1)];
return true;
}
WriteBufferDrain();
NDS.ARM9Timestamp = NDS.ARM9Timestamp + ((1<<NDS.ARM9ClockShift)-1) & ~((1<<NDS.ARM9ClockShift)-1);
@ -2039,22 +2010,6 @@ bool ARMv5::DataRead32S(u32 addr, u32* val)
addr &= ~3;
#if !DISABLE_DCACHE
#ifdef JIT_ENABLED
if (!NDS.IsJITEnabled())
#endif
{
if (CP15Control & CP15_CACHE_CR_DCACHEENABLE)
{
if (IsAddressDCachable(addr))
{
*val = DCacheLookup(addr);
return true;
}
}
}
#endif
if (addr < ITCMSize)
{
DataCycles += 1;
@ -2071,6 +2026,22 @@ bool ARMv5::DataRead32S(u32 addr, u32* val)
return true;
}
#if !DISABLE_DCACHE
#ifdef JIT_ENABLED
if (!NDS.IsJITEnabled())
#endif
{
if (CP15Control & CP15_CACHE_CR_DCACHEENABLE)
{
if (IsAddressDCachable(addr))
{
*val = DCacheLookup(addr);
return true;
}
}
}
#endif
WriteBufferDrain();
NDS.ARM9Timestamp += DataCycles;
@ -2104,22 +2075,6 @@ bool ARMv5::DataWrite8(u32 addr, u8 val)
return false;
}
#if !DISABLE_DCACHE
#ifdef JIT_ENABLED
if (!NDS.IsJITEnabled())
#endif
{
if (CP15Control & CP15_CACHE_CR_DCACHEENABLE)
{
if (IsAddressDCachable(addr))
{
if (DCacheWrite8(addr, val))
return true;
}
}
}
#endif
if (addr < ITCMSize)
{
DataCycles = 1;
@ -2139,6 +2094,22 @@ bool ARMv5::DataWrite8(u32 addr, u8 val)
return true;
}
#if !DISABLE_DCACHE
#ifdef JIT_ENABLED
if (!NDS.IsJITEnabled())
#endif
{
if (CP15Control & CP15_CACHE_CR_DCACHEENABLE)
{
if (IsAddressDCachable(addr))
{
if (DCacheWrite8(addr, val))
return true;
}
}
}
#endif
if (!(PU_Map[addr>>12] & (0x30)))
{
NDS.ARM9Timestamp = NDS.ARM9Timestamp + ((1<<NDS.ARM9ClockShift)-1) & ~((1<<NDS.ARM9ClockShift)-1);
@ -2180,22 +2151,6 @@ bool ARMv5::DataWrite16(u32 addr, u16 val)
addr &= ~1;
#if !DISABLE_DCACHE
#ifdef JIT_ENABLED
if (!NDS.IsJITEnabled())
#endif
{
if (CP15Control & CP15_CACHE_CR_DCACHEENABLE)
{
if (IsAddressDCachable(addr))
{
if (DCacheWrite16(addr, val))
return true;
}
}
}
#endif
if (addr < ITCMSize)
{
DataCycles = 1;
@ -2215,6 +2170,22 @@ bool ARMv5::DataWrite16(u32 addr, u16 val)
return true;
}
#if !DISABLE_DCACHE
#ifdef JIT_ENABLED
if (!NDS.IsJITEnabled())
#endif
{
if (CP15Control & CP15_CACHE_CR_DCACHEENABLE)
{
if (IsAddressDCachable(addr))
{
if (DCacheWrite16(addr, val))
return true;
}
}
}
#endif
if (!(PU_Map[addr>>12] & 0x30))
{
NDS.ARM9Timestamp = NDS.ARM9Timestamp + ((1<<NDS.ARM9ClockShift)-1) & ~((1<<NDS.ARM9ClockShift)-1);
@ -2256,23 +2227,6 @@ bool ARMv5::DataWrite32(u32 addr, u32 val)
addr &= ~3;
#if !DISABLE_DCACHE
#ifdef JIT_ENABLED
if (!NDS.IsJITEnabled())
#endif
{
if (CP15Control & CP15_CACHE_CR_DCACHEENABLE)
{
if (IsAddressDCachable(addr))
{
DataCycles = 0;
if (DCacheWrite32(addr, val))
return true;
}
}
}
#endif
if (addr < ITCMSize)
{
DataCycles = 1;
@ -2292,6 +2246,23 @@ bool ARMv5::DataWrite32(u32 addr, u32 val)
return true;
}
#if !DISABLE_DCACHE
#ifdef JIT_ENABLED
if (!NDS.IsJITEnabled())
#endif
{
if (CP15Control & CP15_CACHE_CR_DCACHEENABLE)
{
if (IsAddressDCachable(addr))
{
DataCycles = 0;
if (DCacheWrite32(addr, val))
return true;
}
}
}
#endif
if (!(PU_Map[addr>>12] & 0x30))
{
NDS.ARM9Timestamp = NDS.ARM9Timestamp + ((1<<NDS.ARM9ClockShift)-1) & ~((1<<NDS.ARM9ClockShift)-1);
@ -2332,22 +2303,6 @@ bool ARMv5::DataWrite32S(u32 addr, u32 val)
addr &= ~3;
#if !DISABLE_DCACHE
#ifdef JIT_ENABLED
if (!NDS.IsJITEnabled())
#endif
{
if (CP15Control & CP15_CACHE_CR_DCACHEENABLE)
{
if (IsAddressDCachable(addr))
{
if (DCacheWrite32(addr, val))
return true;
}
}
}
#endif
if (addr < ITCMSize)
{
DataCycles += 1;
@ -2367,6 +2322,22 @@ bool ARMv5::DataWrite32S(u32 addr, u32 val)
return true;
}
#if !DISABLE_DCACHE
#ifdef JIT_ENABLED
if (!NDS.IsJITEnabled())
#endif
{
if (CP15Control & CP15_CACHE_CR_DCACHEENABLE)
{
if (IsAddressDCachable(addr))
{
if (DCacheWrite32(addr, val))
return true;
}
}
}
#endif
if (!(PU_Map[addr>>12] & 0x30))
{
DataCycles += (((NDS.ARM9Timestamp + DataCycles) + ((1<<NDS.ARM9ClockShift)-1) & ~((1<<NDS.ARM9ClockShift)-1)) - (NDS.ARM9Timestamp + DataCycles));