[72] | 1 | /* |
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| 2 | * $Id: Random.cpp 81 2008-04-15 18:40:01Z rosiere $ |
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| 3 | * |
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| 4 | * [ Description ] |
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| 5 | * |
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| 6 | */ |
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| 7 | |
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| 8 | #include "Behavioural/Custom/include/Random.h" |
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| 9 | |
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| 10 | namespace morpheo { |
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| 11 | namespace behavioural { |
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| 12 | namespace custom { |
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| 13 | namespace random { |
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| 14 | |
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| 15 | static uint32_t _num_group; |
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| 16 | |
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| 17 | Random::Random (uint32_t num_group) |
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| 18 | { |
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| 19 | _num_group = num_group; |
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| 20 | }; |
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| 21 | |
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| 22 | uint32_t Random::get_nb_register (void) |
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| 23 | { |
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| 24 | return 4; |
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| 25 | }; |
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| 26 | |
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| 27 | access_mode_t Random::get_access_mode (uint32_t reg) |
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| 28 | { |
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| 29 | // All reg is access by supervisor |
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| 30 | if (reg == num_register_random) |
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| 31 | return access_mode_t (SPR_ACCESS_MODE_READ_ONLY, SPR_ACCESS_MODE_READ_ONLY); |
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| 32 | |
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| 33 | return access_mode_t (SPR_ACCESS_MODE_READ_ONLY_COND, SPR_ACCESS_MODE_READ_WRITE); |
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| 34 | } |
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| 35 | |
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| 36 | custom_decod_t * Random::get_custom_decod (Toperation_t operation) |
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| 37 | { |
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| 38 | // TODO !!!!! |
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| 39 | return NULL; |
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| 40 | } |
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| 41 | |
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| 42 | custom_execute_genMoore_t * Random::get_custom_execute_genMoore (Toperation_t operation) |
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| 43 | { |
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| 44 | return &(morpheo::behavioural::core::multi_execute_loop::execute_loop::multi_execute_unit::execute_unit::functionnal_unit::operation_unimplemented); // unimplemented function |
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| 45 | } |
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| 46 | |
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| 47 | custom_execute_transition_t * Random::get_custom_execute_transition (void) |
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| 48 | { |
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| 49 | // No treatment a the end cycle |
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| 50 | return &(function_transition); |
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| 51 | } |
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| 52 | |
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| 53 | custom_execute_transition_t * Random::get_custom_execute_reset (void) |
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| 54 | { |
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| 55 | // No treatment a the end cycle |
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| 56 | return &(function_reset); |
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| 57 | } |
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| 58 | |
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| 59 | void Random::function_transition (morpheo::behavioural::core::multi_execute_loop::execute_loop::multi_execute_unit::execute_unit::functionnal_unit::execute_register_t * reg, |
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| 60 | morpheo::behavioural::core::multi_execute_loop::execute_loop::multi_execute_unit::execute_unit::functionnal_unit::execute_param_t * param) |
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| 61 | { |
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| 62 | std::cout << "<Random::function_transition> Transition" << std::endl; |
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| 63 | |
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| 64 | uint32_t num_group = reg->_access_num_group; |
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| 65 | uint32_t num_register = reg->_access_num_register; |
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| 66 | if (num_group == _num_group) |
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| 67 | { |
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| 68 | // Test if have a read of num_register_random |
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| 69 | if ((reg->_i_read_spr) and |
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| 70 | (num_register == num_register_random)) |
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| 71 | { |
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| 72 | Tgeneral_data_t random = reg->_spr[num_group][num_register_random]; |
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| 73 | Tgeneral_data_t cst1 = reg->_spr[num_group][num_register_cst1 ]; |
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| 74 | Tgeneral_data_t cst2 = reg->_spr[num_group][num_register_cst2 ]; |
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| 75 | Tgeneral_data_t max = reg->_spr[num_group][num_register_max ]; |
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| 76 | |
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| 77 | // make a new value |
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| 78 | reg->_spr[num_group][num_register_random] = (cst1*random+cst2)%max; |
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| 79 | } |
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| 80 | |
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| 81 | // Test if write in register_max |
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| 82 | if (reg->_i_write_spr and |
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| 83 | (reg->_spr[num_group][num_register] == 0)) |
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| 84 | { |
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| 85 | reg->_spr[num_group][num_register] = reg->_spr_old; |
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| 86 | } |
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| 87 | } |
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| 88 | }; |
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| 89 | |
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| 90 | void Random::function_reset (morpheo::behavioural::core::multi_execute_loop::execute_loop::multi_execute_unit::execute_unit::functionnal_unit::execute_register_t * reg, |
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| 91 | morpheo::behavioural::core::multi_execute_loop::execute_loop::multi_execute_unit::execute_unit::functionnal_unit::execute_param_t * param) |
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| 92 | { |
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| 93 | std::cout << "<Random::function_reset> Reset" << std::endl; |
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| 94 | |
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| 95 | reg->_spr[_num_group][num_register_random] = 0xbebe; |
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| 96 | reg->_spr[_num_group][num_register_cst1 ] = 0xdeadbeef; |
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| 97 | reg->_spr[_num_group][num_register_cst2 ] = 0x666; |
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| 98 | reg->_spr[_num_group][num_register_max ] = 0xffffffff; |
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| 99 | }; |
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| 100 | |
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| 101 | }; // end namespace random |
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| 102 | }; // end namespace custom |
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| 103 | }; // end namespace behavioural |
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| 104 | }; // end namespace morpheo |
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