public static bool S(ulong uInstr, zSeriesDisassembler dasm)
{
var b2 = Registers.GpRegisters[(uInstr >> 12) & 0xF];
var d2 = (int)Bits.SignExtend(uInstr, 12);
dasm.ops.Add(dasm.CreateAccess(b2, d2));
return true;
}
public static bool RIc(ulong uInstr, zSeriesDisassembler dasm)
{
var addr = dasm.addr + 2 * (int)Bits.SignExtend(uInstr, 16);
dasm.state.ops.Add(AddressOperand.Create(addr));
return(true);
}
public static bool RIb(ulong uInstr, zSeriesDisassembler dasm)
{
var addr = dasm.addr + 2 * (int)Bits.SignExtend(uInstr, 16);
dasm.ops.Add(new RegisterOperand(Registers.GpRegisters[(uInstr >> 20) & 0xF]));
dasm.ops.Add(AddressOperand.Create(addr));
return true;
}
public static bool RILb(ulong uInstr, zSeriesDisassembler dasm)
{
dasm.ops.Add(new RegisterOperand(Registers.GpRegisters[(uInstr >> 36) & 0xF]));
var offset = 2 * (int)Bits.SignExtend(uInstr, 32);
dasm.ops.Add(AddressOperand.Create(dasm.addr + offset));
return true;
}
public static bool RILc(ulong uInstr, zSeriesDisassembler dasm)
{
var offset = 2 * (int)Bits.SignExtend(uInstr, 32);
dasm.state.ops.Add(AddressOperand.Create(dasm.addr + offset));
return(true);
}
public override zSeriesInstruction Decode(ulong uInstr, zSeriesDisassembler dasm)
{
if (!dasm.rdr.TryReadBeUInt32(out uint uLowWord))
return dasm.CreateInvalidInstruction();
ulong uInstrExt = (uInstr << 32) | uLowWord;
return base.Decode(uInstrExt, dasm);
}
private static bool SI(ulong uInstr, zSeriesDisassembler dasm)
{
var i2 = ImmediateOperand.Byte((byte)(uInstr >> 16));
var b1 = Registers.GpRegisters[(uInstr >> 12) & 0xF];
var d1 = (int)Bits.SignExtend(uInstr, 12);
dasm.ops.Add(dasm.CreateAccess(b1, d1));
dasm.ops.Add(i2);
return true;
}
public static bool MII(ulong uInstr, zSeriesDisassembler dasm)
{
var m1 = (byte)((uInstr >> 36) & 0xF);
var r2 = (int) Bits.SignExtend((uint)(uInstr >> 24), 12);
var r3 = (int) Bits.SignExtend((uint)uInstr, 24);
dasm.ops.Add(ImmediateOperand.Byte(m1));
dasm.ops.Add(ImmediateOperand.Int32(r2));
dasm.ops.Add(ImmediateOperand.Int32(r3));
return true;
}
public static bool FXa(ulong uInstr, zSeriesDisassembler dasm)
{
var f1 = new RegisterOperand(Registers.FpRegisters[(uInstr >> 20) & 0xF]);
var x2 = Registers.GpRegisters[(uInstr >> 16) & 0xF];
var b2 = Registers.GpRegisters[(uInstr >> 12) & 0xF];
var d2 = (int)Bits.SignExtend(uInstr, 12);
dasm.ops.Add(f1);
dasm.ops.Add(dasm.CreateAccess(b2, x2, d2));
return true;
}
public override zSeriesInstruction Decode(ulong uInstr, zSeriesDisassembler dasm)
{
if (!dasm.rdr.TryReadBeUInt32(out uint uLowWord))
{
return(dasm.Invalid());
}
ulong uInstrExt = (uInstr << 32) | uLowWord;
return(base.Decode(uInstrExt, dasm));
}
public static bool RSa(ulong uInstr, zSeriesDisassembler dasm)
{
var r1 = Registers.GpRegisters[(uInstr >> 20) & 0xF];
var b2 = Registers.GpRegisters[(uInstr >> 12) & 0xF];
var d2 = (int)Bits.SignExtend(uInstr, 12);
dasm.state.ops.Add(new RegisterOperand(r1));
dasm.state.ops.Add(dasm.CreateAccess(b2, d2));
return(true);
}
public override zSeriesInstruction Decode(ulong uInstr, zSeriesDisassembler dasm)
{
if (!dasm.rdr.TryReadBeUInt16(out ushort uLowWord))
{
return(dasm.CreateInvalidInstruction());
}
ulong uInstrExt = (uInstr << 16) | uLowWord;
return(base.Decode(uInstrExt, dasm));
}
private static bool RXYa(ulong uInstr, zSeriesDisassembler dasm)
{
var r1 = new RegisterOperand(Registers.GpRegisters[(uInstr >> 36) & 0xF]);
var x2 = Registers.GpRegisters[(uInstr >> 32) & 0xF];
var b2 = Registers.GpRegisters[(uInstr >> 28) & 0xF];
var d2 = Bitfield.ReadSignedFields(rxya_offset, (uint)uInstr);
dasm.ops.Add(r1);
dasm.ops.Add(dasm.CreateAccess(b2, x2, d2));
return true;
}
public static bool RSb(ulong uInstr, zSeriesDisassembler dasm)
{
var r1 = Registers.GpRegisters[(uInstr >> 20) & 0xF];
var m3 = ImmediateOperand.Byte((byte)((uInstr >> 16) & 0xF));
var b2 = Registers.GpRegisters[(uInstr >> 12) & 0xF];
var d2 = (int)Bits.SignExtend(uInstr, 12);
dasm.ops.Add(new RegisterOperand(r1));
dasm.ops.Add(dasm.CreateAccess(b2, d2));
dasm.ops.Add(m3);
return true;
}
private static bool RSYb(ulong uInstr, zSeriesDisassembler dasm)
{
var r1 = Registers.GpRegisters[(uInstr >> 36) & 0xF];
var m3 = (byte)((uInstr >> 32) & 0xF);
var b2 = Registers.GpRegisters[(uInstr >> 28) & 0xF];
var d2 = Bitfield.ReadSignedFields(rsya_offset, (uint)uInstr);
dasm.ops.Add(new RegisterOperand(r1));
dasm.ops.Add(ImmediateOperand.Byte(m3));
dasm.ops.Add(dasm.CreateAccess(b2, d2));
return true;
}
public static bool SSf(ulong uInstr, zSeriesDisassembler dasm)
{
var l2 = (byte)(uInstr >> 32);
var b1 = Registers.GpRegisters[(uInstr >> 28) & 0xF];
var d1 = (int)Bits.SignExtend(uInstr >> 16, 12);
var b2 = Registers.GpRegisters[(uInstr >> 12) & 0xF];
var d2 = (int)Bits.SignExtend(uInstr, 12);
dasm.ops.Add(dasm.CreateAccess(b1, d1));
dasm.ops.Add(dasm.CreateAccessLength(b2, d2, l2 + 1));
return true;
}
private static bool RSYa(ulong uInstr, zSeriesDisassembler dasm)
{
var r1 = Registers.GpRegisters[(uInstr >> 36) & 0xF];
var r3 = Registers.GpRegisters[(uInstr >> 32) & 0xF];
var b2 = Registers.GpRegisters[(uInstr >> 28) & 0xF];
var d2 = Bitfield.ReadSignedFields(rsya_offset, (uint)uInstr);
dasm.state.ops.Add(new RegisterOperand(r1));
dasm.state.ops.Add(new RegisterOperand(r3));
dasm.state.ops.Add(dasm.CreateAccess(b2, d2));
return(true);
}
public override zSeriesInstruction Decode(ulong uInstr, zSeriesDisassembler dasm)
{
dasm.state.opcode = opcode;
foreach (var m in mutators)
{
if (!m(uInstr, dasm))
{
return(dasm.Invalid());
}
}
return(dasm.state.MakeInstruction());
}
public static bool SSd(ulong uInstr, zSeriesDisassembler dasm)
{
var r1 = Registers.GpRegisters[(uInstr >> 36) & 0xF];
var r3 = Registers.GpRegisters[(uInstr >> 32) & 0xF];
var b1 = Registers.GpRegisters[(uInstr >> 28) & 0xF];
var d1 = (int)Bits.SignExtend(uInstr >> 16, 12);
var b2 = Registers.GpRegisters[(uInstr >> 12) & 0xF];
var d2 = (int)Bits.SignExtend(uInstr, 12);
dasm.ops.Add(dasm.CreateAccess(b1, r1, d1));
dasm.ops.Add(dasm.CreateAccess(b2, d2));
dasm.ops.Add(new RegisterOperand(r3));
return true;
}
public static bool SSc(ulong uInstr, zSeriesDisassembler dasm)
{
var l = (byte)((uInstr >> 36) & 0xF);
var i3 = (byte)((uInstr >> 32) & 0xF);
var b1 = Registers.GpRegisters[(uInstr >> 28) & 0xF];
var d1 = (int)Bits.SignExtend(uInstr >> 16, 12);
var b2 = Registers.GpRegisters[(uInstr >> 12) & 0xF];
var d2 = (int)Bits.SignExtend(uInstr, 12);
dasm.ops.Add(dasm.CreateAccessLength(b1, d1, l + 1));
dasm.ops.Add(dasm.CreateAccess(b2, d2));
dasm.ops.Add(ImmediateOperand.Byte(i3));
return true;
}
private static bool SIL(ulong uInstr, zSeriesDisassembler dasm)
{
var b1 = Registers.GpRegisters[(uInstr >> 28) & 0xF];
var d1 = (short)uInstr >> 16;
var i2 = ImmediateOperand.Word16((ushort)uInstr);
dasm.ops.Add(new MemoryOperand(dasm.arch.WordWidth)
{
Base = b1,
Offset = d1,
});
dasm.ops.Add(i2);
return(true);
}
public static bool RRE(ulong uInstr, zSeriesDisassembler dasm)
{
dasm.state.ops.Add(new RegisterOperand(Registers.GpRegisters[(uInstr >> 4) & 0xF]));
dasm.state.ops.Add(new RegisterOperand(Registers.GpRegisters[(uInstr) & 0xF]));
return(true);
}
public override zSeriesInstruction Decode(ulong uInstr, zSeriesDisassembler dasm)
{
return(dasm.NotYetImplemented(msg));
}
public override zSeriesInstruction Decode(ulong uInstr, zSeriesDisassembler dasm)
{
dasm.Nyi(uInstr, msg);
return(dasm.Invalid());
}
public abstract zSeriesInstruction Decode(ulong uInstr, zSeriesDisassembler dasm);
public override zSeriesInstruction Decode(ulong uInstr, zSeriesDisassembler dasm)
{
dasm.Nyi(uInstr, msg);
return dasm.CreateInvalidInstruction();
}
public static bool R(ulong uInstr, zSeriesDisassembler dasm)
{
dasm.ops.Add(new RegisterOperand(Registers.GpRegisters[uInstr & 0xF]));
return(true);
}
public static bool FF(ulong uInstr, zSeriesDisassembler dasm)
{
dasm.ops.Add(new RegisterOperand(Registers.FpRegisters[(uInstr >> 4) & 0xF]));
dasm.ops.Add(new RegisterOperand(Registers.FpRegisters[(uInstr) & 0xF]));
return true;
}
public static bool RIa(ulong uInstr, zSeriesDisassembler dasm)
{
dasm.state.ops.Add(new RegisterOperand(Registers.GpRegisters[(uInstr >> 20) & 0xF]));
dasm.state.ops.Add(ImmediateOperand.Int32((int)Bits.SignExtend(uInstr, 16)));
return(true);
}