1 | #ifdef SYSTEMC |
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2 | /* |
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3 | * $Id$ |
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4 | * |
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5 | * [ Description ] |
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6 | * |
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7 | */ |
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8 | |
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9 | #include "Behavioural/Generic/Shifter/include/Shifter.h" |
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10 | #include "Common/include/BitManipulation.h" |
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11 | #include <bitset> |
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12 | |
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13 | using namespace std; |
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14 | namespace morpheo { |
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15 | namespace behavioural { |
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16 | namespace generic { |
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17 | namespace shifter { |
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18 | |
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19 | void Shifter::genMealy_shift (void) |
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20 | { |
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21 | for (uint32_t i=0; i<_param._nb_port; i++) |
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22 | { |
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23 | // Read |
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24 | Tdata_t data_in = PORT_READ(in_SHIFTER_DATA [i]); |
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25 | Tdata_t data_out = data_in; |
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26 | Tshift_t shift_value = _param._shift_value; |
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27 | if (shift_value == 0) |
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28 | shift_value = PORT_READ(in_SHIFTER_SHIFT [i]); |
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29 | |
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30 | Tdirection_t direction; |
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31 | if (_param._direction == external_direction) |
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32 | direction = PORT_READ(in_SHIFTER_DIRECTION [i]); |
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33 | else |
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34 | direction = _param._internal_direction; |
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35 | |
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36 | Ttype_t type; |
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37 | if (_param._rotate == external_rotate) |
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38 | type = PORT_READ(in_SHIFTER_TYPE [i]); |
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39 | else |
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40 | type = _param._internal_type; |
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41 | |
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42 | Tcarry_t carry; |
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43 | if (_param._carry == external_carry) |
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44 | carry = PORT_READ(in_SHIFTER_CARRY [i]); |
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45 | else |
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46 | carry = _param._internal_carry; |
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47 | |
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48 | if (type == _shift) |
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49 | { |
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50 | data_out = shift <Tdata_t> (_param._size_data, data_in, shift_value, direction == _left, carry == _arithmetic); |
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51 | |
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52 | if (_param._size_data_completion > 0) |
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53 | { |
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54 | Tdata_t completion; |
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55 | |
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56 | if (_param._type_completion_bool == true) |
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57 | completion = (PORT_READ(in_SHIFTER_CARRY_IN [i])==true)?1:0; |
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58 | else |
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59 | completion = PORT_READ(in_SHIFTER_COMPLETION [i]); |
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60 | |
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61 | Tdata_t mask ; |
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62 | |
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63 | if (direction == _left) |
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64 | { |
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65 | mask = gen_mask<Tdata_t> (shift_value); |
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66 | } |
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67 | else |
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68 | { |
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69 | mask = gen_mask<Tdata_t> (shift_value) << (_param._size_data-shift_value); |
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70 | } |
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71 | |
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72 | data_out = (data_out & ~mask) | (completion & mask); |
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73 | } |
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74 | } |
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75 | else |
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76 | data_out = rotate <Tdata_t> (_param._size_data, data_in, shift_value, direction == _left); |
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77 | |
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78 | // Write |
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79 | PORT_WRITE(out_SHIFTER_DATA [i], data_out); |
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80 | } |
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81 | }; |
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82 | |
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83 | }; // end namespace shifter |
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84 | }; // end namespace generic |
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85 | }; // end namespace behavioural |
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86 | }; // end namespace morpheo |
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87 | #endif |
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