Exemple #1
0
        public byte[] Encode()
        {
            if (!Decoded)
            {
                throw new InvalidOperationException();
            }

            var bw = new BitWriter();

            bw.WriteBits((int)Condition, 28, 4); // Condition

            switch (Multiplication)
            {
            case EMultiplication.Mul:
                bw.WriteBits((int)Rd, 16, 4);
                break;

            case EMultiplication.Mla:
                bw.WriteBits(1, 21, 1);
                bw.WriteBits((int)Rd, 16, 4);
                bw.WriteBits((int)Rn, 12, 4);
                break;

            case EMultiplication.Smlal:
                bw.WriteBits(1, 21, 1);
                goto case EMultiplication.Smull;

            case EMultiplication.Smull:
                bw.WriteBits(1, 23, 1);
                bw.WriteBits(1, 22, 1);
                bw.WriteBits((int)RdHi, 16, 4);
                bw.WriteBits((int)RdLo, 12, 4);
                break;

            case EMultiplication.Umlal:
                bw.WriteBits(1, 21, 1);
                goto case EMultiplication.UMull;

            case EMultiplication.UMull:
                bw.WriteBits(1, 23, 1);
                bw.WriteBits((int)RdHi, 16, 4);
                bw.WriteBits((int)RdLo, 12, 4);
                break;

            default:
                throw new ArgumentOutOfRangeException();
            }

            bw.WriteBits((int)Rs, 8, 4);
            bw.WriteBits(1, 7, 1);
            bw.WriteBits(1, 4, 1);
            bw.WriteBits((int)Rm, 0, 4);

            return(bw.GetValue());
        }
Exemple #2
0
        public byte[] Encode()
        {
            if (!Decoded)
            {
                throw new InvalidOperationException();
            }

            var bw = new BitWriter();

            bw.WriteBits((int)Condition, 28, 4); // Condition
            if (Operand2 == EOperand2.RotateImmediate)
            {
                bw.WriteBits(1, 25, 1);
            }
            bw.WriteBits((int)Opcode, 21, 4);               // Opcode
            bw.WriteBits(SetConditionFlags ? 1 : 0, 20, 1); // Set condition flags

            bw.WriteBits((int)Rn, 16, 4);                   // Rn
            bw.WriteBits((int)Rd, 12, 4);                   // Rd

            // Operand2
            switch (Operand2)
            {
            case EOperand2.RotateImmediate:
                bw.WriteBits(Rotate, 8, 4);
                bw.WriteBits(Immediate, 0, 8);
                break;

            case EOperand2.ImmediateShiftRm:
                bw.WriteBits(ShiftCount, 7, 5);
                bw.WriteBits((int)ShiftInst, 5, 2);
                bw.WriteBits(0, 4, 1);
                bw.WriteBits((int)Rm, 0, 4);
                break;

            case EOperand2.RsShiftRm:
                bw.WriteBits((int)Rs, 8, 4);
                bw.WriteBits(0, 7, 1);
                bw.WriteBits((int)ShiftInst, 5, 2);
                bw.WriteBits(1, 4, 1);
                bw.WriteBits((int)Rm, 0, 4);
                break;
            }

            return(bw.GetValue());
        }
        public byte[] Encode()
        {
            if (!Decoded)
            {
                throw new InvalidOperationException();
            }

            var bw = new BitWriter();

            bw.WriteBits((int)Condition, 28, 4); // Condition
            bw.WriteBits(1, 27, 1);
            bw.WriteBits(WriteBack ? 1 : 0, 21, 1);
            bw.WriteBits(Load ? 1 : 0, 20, 1);
            bw.WriteBits((int)Rn, 16, 4);
            bw.WriteBits(RegisterList, 0, 16);

            return(bw.GetValue());
        }
Exemple #4
0
        public byte[] Encode()
        {
            if (!Decoded || !Linked)
            {
                throw new InvalidOperationException();
            }

            var bw = new BitWriter();

            bw.WriteBits((int)Condition, 28, 4); // Condition
            bw.WriteBits(1, 26, 1);
            bw.WriteBits(Offset == EOffset.ImmediateShiftRm ? 1 : 0, 25, 1);
            bw.WriteBits(PreIndex ? 1 : 0, 24, 1);
            bw.WriteBits(Up ? 1 : 0, 23, 1);
            bw.WriteBits(DataSize == EDataSize.Byte ? 1 : 0, 22, 1);
            bw.WriteBits(WriteBack ? 1 : 0, 21, 1);
            bw.WriteBits(Load ? 1 : 0, 20, 1);
            bw.WriteBits((int)Rn, 16, 4);
            bw.WriteBits((int)Rd, 12, 4);

            switch (Offset)
            {
            case EOffset.None:
            case EOffset.Immediate:
                bw.WriteBits(Immediate, 0, 12);
                break;

            case EOffset.ImmediateShiftRm:
                bw.WriteBits(ShiftCount, 7, 5);
                bw.WriteBits((int)ShiftInst, 5, 2);
                bw.WriteBits((int)Rm, 0, 4);
                break;

            default:
                throw new ArgumentOutOfRangeException();
            }

            return(bw.GetValue());
        }
Exemple #5
0
        public byte[] Encode()
        {
            if (!Linked)
            {
                throw new InvalidOperationException();
            }

            var bw = new BitWriter();

            bw.WriteBits((int)Condition, 28, 4); // Condition

            switch (JumpType)
            {
            case EJump.BranchLink:
                bw.WriteBits(1, 24, 1);
                goto case EJump.Branch;

            case EJump.Branch:
                bw.WriteBits(1, 27, 1);
                bw.WriteBits(1, 25, 1);
                bw.WriteBits(Offset, 0, 24);
                break;

            case EJump.BranchExchange:
                bw.WriteBits(1, 24, 1);
                bw.WriteBits(1, 21, 1);
                bw.WriteBits(1, 4, 1);
                bw.WriteBits((int)Rm, 0, 4);
                break;

            default:
                throw new ArgumentOutOfRangeException();
            }

            return(bw.GetValue());
        }