public override XtensaInstruction Decode(XtensaDisassembler dasm)
{
return(new XtensaInstruction
{
Opcode = this.opcode,
Operands = new MachineOperand[] {
dasm.GetAluRegister(dasm.state.s),
ImmediateOperand.Byte((byte)(((dasm.state.r & 1) << 4) | dasm.state.t)),
dasm.JumpOffset(dasm.state.imm8)
}
});
}
public override XtensaInstruction Decode(XtensaDisassembler dasm)
{
var n =
dasm.state.r |
((dasm.state.t & 0x3) << 4);
var dst = dasm.JumpOffset((byte)n);
// this is a 2-byte instruction, so back up one byte.
dasm.rdr.Offset -= 1;
return(new XtensaInstruction
{
Opcode = opcode,
Operands = new MachineOperand[]
{
dasm.GetAluRegister(dasm.state.s),
dst,
}
});
}