Add FVCTZS (fixed point variant) and LD1 (single structure variant) instructions

This commit is contained in:
gdkchan 2018-02-09 00:26:20 -03:00
parent ebbccfcdbf
commit 6a3aa6cd88
9 changed files with 279 additions and 22 deletions

View file

@ -1,3 +1,4 @@
using ChocolArm64.Exceptions;
using ChocolArm64.State;
using System;
using System.Collections.Generic;
@ -119,26 +120,46 @@ namespace ChocolArm64.Memory
public byte ReadByte(long Position)
{
#if DEBUG
EnsureAccessIsValid(Position, AMemoryPerm.Read);
#endif
return *((byte*)(RamPtr + (uint)Position));
}
public ushort ReadUInt16(long Position)
{
#if DEBUG
EnsureAccessIsValid(Position, AMemoryPerm.Read);
#endif
return *((ushort*)(RamPtr + (uint)Position));
}
public uint ReadUInt32(long Position)
{
#if DEBUG
EnsureAccessIsValid(Position, AMemoryPerm.Read);
#endif
return *((uint*)(RamPtr + (uint)Position));
}
public ulong ReadUInt64(long Position)
{
#if DEBUG
EnsureAccessIsValid(Position, AMemoryPerm.Read);
#endif
return *((ulong*)(RamPtr + (uint)Position));
}
public AVec ReadVector128(long Position)
{
#if DEBUG
EnsureAccessIsValid(Position, AMemoryPerm.Read);
#endif
return new AVec()
{
X0 = ReadUInt64(Position + 0),
@ -153,33 +174,61 @@ namespace ChocolArm64.Memory
public void WriteByte(long Position, byte Value)
{
#if DEBUG
EnsureAccessIsValid(Position, AMemoryPerm.Write);
#endif
*((byte*)(RamPtr + (uint)Position)) = Value;
}
public void WriteUInt16(long Position, ushort Value)
{
#if DEBUG
EnsureAccessIsValid(Position, AMemoryPerm.Write);
#endif
*((ushort*)(RamPtr + (uint)Position)) = Value;
}
public void WriteUInt32(long Position, uint Value)
{
#if DEBUG
EnsureAccessIsValid(Position, AMemoryPerm.Write);
#endif
*((uint*)(RamPtr + (uint)Position)) = Value;
}
public void WriteUInt64(long Position, ulong Value)
{
#if DEBUG
EnsureAccessIsValid(Position, AMemoryPerm.Write);
#endif
*((ulong*)(RamPtr + (uint)Position)) = Value;
}
public void WriteVector128(long Position, AVec Value)
{
#if DEBUG
EnsureAccessIsValid(Position, AMemoryPerm.Write);
#endif
WriteUInt64(Position + 0, Value.X0);
WriteUInt64(Position + 8, Value.X1);
}
private bool IsPageCrossed(long Position, int Size)
private void EnsureAccessIsValid(long Position, AMemoryPerm Perm)
{
return (Position & AMemoryMgr.PageMask) + Size > AMemoryMgr.PageSize;
if (!Manager.IsMapped(Position))
{
throw new VmmPageFaultException(Position);
}
if (!Manager.HasPermission(Position, Perm))
{
throw new VmmAccessViolationException(Position, Perm);
}
}
}
}