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Make some libc-like funcs behave more like hw.

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Unknown W. Brackets 2013-01-02 00:35:31 -08:00
parent 62b8b9af75
commit 4a713309a3
2 changed files with 24 additions and 9 deletions
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27
Core/HLE/sceKernelInterrupt.cpp
View file

@ -547,24 +547,37 @@ void QueryIntrHandlerInfo()
RETURN(0);
}
// TODO: speedup
u32 sceKernelMemset(u32 addr, u32 fillc, u32 n)
{
u8 c = fillc & 0xff;
DEBUG_LOG(HLE, "sceKernelMemset(ptr = %08x, c = %02x, n = %08x)", addr, c, n);
for (size_t i = 0; i < n; i++)
Memory::Write_U8((u8)c, addr + i);
return 0; // TODO: verify it should return this
Memory::Memset(addr, c, n);
return addr;
}
u32 sceKernelMemcpy(u32 dst, u32 src, u32 size)
{
DEBUG_LOG(HLE, "sceKernelMemcpy(dest=%08x, src=%08x, size=%i)", dst, src, size);
if (Memory::IsValidAddress(dst) && Memory::IsValidAddress(src+size)) // a bit of bound checking. Wrong??
// Technically should crash if these are invalid and size > 0...
if (Memory::IsValidAddress(dst) && Memory::IsValidAddress(src + size - 1))
{
Memory::Memcpy(dst, Memory::GetPointer(src), size);
u8 *dstp = Memory::GetPointer(dst);
u8 *srcp = Memory::GetPointer(src);
u32 size64 = size / 8;
u32 size8 = size % 8;
// Try to handle overlapped copies with similar properties to hardware, just in case.
// Not that anyone ought to rely on it.
while (size64-- > 0)
{
*(u64 *) dstp = *(u64 *) srcp;
srcp += 8;
dstp += 8;
}
while (size8-- > 0)
*dstp++ = *srcp++;
}
return 0;
return dst;
}
const HLEFunction Kernel_Library[] =

6
Core/HLE/sceKernelTime.cpp
View file

@ -107,8 +107,8 @@ u32 sceKernelUSec2SysClockWide(u32 usec)
u32 sceKernelLibcClock()
{
u32 retVal = clock()*1000; // TODO: This can't be right
DEBUG_LOG(HLE,"%i = sceKernelLibcClock",retVal);
u32 retVal = (u32) (CoreTiming::GetTicks() / CoreTiming::GetClockFrequencyMHz());
DEBUG_LOG(HLE, "%i = sceKernelLibcClock", retVal);
return retVal;
}
@ -121,6 +121,8 @@ u32 sceKernelLibcTime(u32 outPtr)
if (Memory::IsValidAddress(outPtr))
Memory::Write_U32((u32) t, outPtr);
else if (outPtr != 0)
return 0;
return (u32) t;
}