public static void Mrs(ArmEmitterContext context)
{
OpCodeSystem op = (OpCodeSystem)context.CurrOp;
Delegate dlg;
switch (GetPackedId(op))
{
case 0b11_011_0000_0000_001: dlg = new _U64(NativeInterface.GetCtrEl0); break;
case 0b11_011_0000_0000_111: dlg = new _U64(NativeInterface.GetDczidEl0); break;
case 0b11_011_0100_0010_000: EmitGetNzcv(context); return;
case 0b11_011_0100_0100_000: dlg = new _U64(NativeInterface.GetFpcr); break;
case 0b11_011_0100_0100_001: dlg = new _U64(NativeInterface.GetFpsr); break;
case 0b11_011_1101_0000_010: dlg = new _U64(NativeInterface.GetTpidrEl0); break;
case 0b11_011_1101_0000_011: dlg = new _U64(NativeInterface.GetTpidr); break;
case 0b11_011_1110_0000_000: dlg = new _U64(NativeInterface.GetCntfrqEl0); break;
case 0b11_011_1110_0000_001: dlg = new _U64(NativeInterface.GetCntpctEl0); break;
default: throw new NotImplementedException($"Unknown MRS 0x{op.RawOpCode:X8} at 0x{op.Address:X16}.");
}
SetIntOrZR(context, op.Rt, context.Call(dlg));
}
public static void Mrrc(ArmEmitterContext context)
{
OpCode32System op = (OpCode32System)context.CurrOp;
if (op.Coproc != 15)
{
throw new NotImplementedException($"Unknown MRC Coprocessor ID 0x{op.Coproc:X16} at 0x{op.Address:X16}.");
}
var opc = op.MrrcOp;
Delegate dlg;
switch (op.CRm)
{
case 14: // Timer.
switch (opc)
{
case 0:
dlg = new _U64(NativeInterface.GetCntpctEl0); break;
default:
throw new NotImplementedException($"Unknown MRRC Opc1 0x{opc:X16} at 0x{op.Address:X16}.");
}
break;
default:
throw new NotImplementedException($"Unknown MRRC 0x{op.RawOpCode:X8} at 0x{op.Address:X16}.");
}
Operand result = context.Call(dlg);
SetIntA32(context, op.Rt, context.ConvertI64ToI32(result));
SetIntA32(context, op.CRn, context.ConvertI64ToI32(context.ShiftRightUI(result, Const(32))));
}
