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using Ryujinx.HLE.HOS.Kernel.Process;
using ChocolArm64.Memory;
namespace Ryujinx.HLE.HOS.Kernel.Common
{
static class KernelTransfer
{
public static bool UserToKernelInt32(Horizon system, ulong address, out int value)
{
KProcess currentProcess = system.Scheduler.GetCurrentProcess();
if (currentProcess.CpuMemory.IsMapped((long)address) &&
currentProcess.CpuMemory.IsMapped((long)address + 3))
{
value = currentProcess.CpuMemory.ReadInt32((long)address);
return true;
}
value = 0;
return false;
}
public static bool UserToKernelString(Horizon system, ulong address, int size, out string value)
{
KProcess currentProcess = system.Scheduler.GetCurrentProcess();
if (currentProcess.CpuMemory.IsMapped((long)address) &&
currentProcess.CpuMemory.IsMapped((long)address + size - 1))
{
value = MemoryHelper.ReadAsciiString(currentProcess.CpuMemory, (long)address, size);
return true;
}
value = null;
return false;
}
public static bool KernelToUserInt32(Horizon system, ulong address, int value)
{
KProcess currentProcess = system.Scheduler.GetCurrentProcess();
if (currentProcess.CpuMemory.IsMapped((long)address) &&
currentProcess.CpuMemory.IsMapped((long)address + 3))
{
currentProcess.CpuMemory.WriteInt32ToSharedAddr((long)address, value);
return true;
}
return false;
}
public static bool KernelToUserInt64(Horizon system, ulong address, long value)
{
KProcess currentProcess = system.Scheduler.GetCurrentProcess();
if (currentProcess.CpuMemory.IsMapped((long)address) &&
currentProcess.CpuMemory.IsMapped((long)address + 7))
{
currentProcess.CpuMemory.WriteInt64((long)address, value);
return true;
}
return false;
}
}
}
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