public static void Sys(ArmEmitterContext context)
{
// This instruction is used to do some operations on the CPU like cache invalidation,
// address translation and the like.
// We treat it as no-op here since we don't have any cache being emulated anyway.
OpCodeSystem op = (OpCodeSystem)context.CurrOp;
switch (GetPackedId(op))
{
case 0b11_011_0111_0100_001:
{
// DC ZVA
Operand t = GetIntOrZR(context, op.Rt);
for (long offset = 0; offset < (4 << DczSizeLog2); offset += 8)
{
Operand address = context.Add(t, Const(offset));
InstEmitMemoryHelper.EmitStore(context, address, RegisterConsts.ZeroIndex, 3);
}
break;
}
// No-op
case 0b11_011_0111_1110_001: //DC CIVAC
break;
}
}
public static void Sys(ArmEmitterContext context)
{
// This instruction is used to do some operations on the CPU like cache invalidation,
// address translation and the like.
// We treat it as no-op here since we don't have any cache being emulated anyway.
OpCodeSystem op = (OpCodeSystem)context.CurrOp;
switch (GetPackedId(op))
{
case 0b11_011_0111_0100_001:
{
// DC ZVA
Operand t = GetIntOrZR(context, op.Rt);
for (long offset = 0; offset < DczSizeInBytes; offset += 8)
{
Operand address = context.Add(t, Const(offset));
InstEmitMemoryHelper.EmitStore(context, address, RegisterConsts.ZeroIndex, 3);
}
break;
}
// No-op
case 0b11_011_0111_1110_001: // DC CIVAC
break;
case 0b11_011_0111_0101_001: // IC IVAU
Operand target = Register(op.Rt, RegisterType.Integer, OperandType.I64);
context.Call(typeof(NativeInterface).GetMethod(nameof(NativeInterface.InvalidateCacheLine)), target);
break;
}
}
public static void Str(ArmEmitterContext context)
{
OpCodeMem op = (OpCodeMem)context.CurrOp;
Operand address = GetAddress(context);
InstEmitMemoryHelper.EmitStore(context, address, op.Rt, op.Size);
EmitWBackIfNeeded(context, address);
}
public static void Stp(ArmEmitterContext context)
{
OpCodeMemPair op = (OpCodeMemPair)context.CurrOp;
Operand address = GetAddress(context);
Operand address2 = context.Add(address, Const(1L << op.Size));
InstEmitMemoryHelper.EmitStore(context, address, op.Rt, op.Size);
InstEmitMemoryHelper.EmitStore(context, address2, op.Rt2, op.Size);
EmitWBackIfNeeded(context, address);
}