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Do nothing when calling CopyToEmu with a length of 0 

Gecko apparently tries to read 0 bytes from the DVD to 0x00000000.
This commit is contained in:
JosJuice 2015-11-17 21:39:46 +01:00
parent 24c7d23073
commit 2005409229
1 changed files with 10 additions and 3 deletions
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13
Source/Core/Core/HW/Memmap.cpp
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@ -253,6 +253,9 @@ static inline bool ValidCopyRange(u32 address, size_t size)
void CopyFromEmu(void* data, u32 address, size_t size)
{
if (size == 0)
return;
if (!ValidCopyRange(address, size))
{
PanicAlert("Invalid range in CopyFromEmu. %zx bytes from 0x%08x", size, address);
@ -263,6 +266,9 @@ void CopyFromEmu(void* data, u32 address, size_t size)
void CopyToEmu(u32 address, const void* data, size_t size)
{
if (size == 0)
return;
if (!ValidCopyRange(address, size))
{
PanicAlert("Invalid range in CopyToEmu. %zx bytes to 0x%08x", size, address);
@ -273,11 +279,12 @@ void CopyToEmu(u32 address, const void* data, size_t size)
void Memset(const u32 _Address, const u8 _iValue, const u32 _iLength)
{
if (_iLength == 0)
return;
u8* ptr = GetPointer(_Address);
if (ptr != nullptr)
{
memset(ptr,_iValue,_iLength);
}
memset(ptr, _iValue, _iLength);
}
std::string GetString(u32 em_address, size_t size)