[2] | 1 | #ifdef VHDL |
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| 2 | /* |
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| 3 | * $Id: Shifter_vhdl_declaration.cpp 81 2008-04-15 18:40:01Z rosiere $ |
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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 | |
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| 11 | namespace morpheo { |
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| 12 | namespace behavioural { |
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| 13 | namespace generic { |
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| 14 | namespace shifter { |
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| 15 | |
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| 16 | |
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[42] | 17 | void Shifter::vhdl_declaration (Vhdl * & vhdl) |
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[2] | 18 | { |
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| 19 | uint32_t log2_size_data = static_cast<uint32_t>(ceil(log2(_param._size_data))); |
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| 20 | |
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[42] | 21 | vhdl->set_constant("cst_is_direction_left ",1,_left ); |
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| 22 | vhdl->set_constant("cst_is_direction_right ",1,_right ); |
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| 23 | vhdl->set_constant("cst_is_type_shift ",1,_shift ); |
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| 24 | vhdl->set_constant("cst_is_type_rotate ",1,_rotate ); |
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| 25 | vhdl->set_constant("cst_is_carry_arithmetic",1,_arithmetic); |
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| 26 | vhdl->set_constant("cst_is_carry_logic ",1,_logic ); |
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| 27 | vhdl->set_constant("cst_completion ",_param._size_data,"(others => '1')"); |
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[2] | 28 | |
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| 29 | for (uint32_t i=0; i<_param._nb_port; i++) |
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| 30 | { |
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| 31 | if (_param._shift_value != 0) |
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[42] | 32 | vhdl->set_constant("shift_"+toString(i),log2_size_data, _param._shift_value); |
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[2] | 33 | else |
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[42] | 34 | vhdl->set_alias ("shift_"+toString(i),std_logic(log2_size_data), "in_SHIFTER_"+toString(i)+"_SHIFT",std_logic_range(log2_size_data)); |
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[2] | 35 | |
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| 36 | if (_param._size_data_completion > 0) |
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| 37 | { |
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[42] | 38 | vhdl->set_signal ("shifter_completion_left_"+toString(i)+" ",_param._size_data); |
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| 39 | vhdl->set_signal ("shifter_completion_right_"+toString(i)+"",_param._size_data); |
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| 40 | vhdl->set_signal ("mask_completion_left_"+toString(i)+" ",_param._size_data); |
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| 41 | vhdl->set_signal ("mask_completion_right_"+toString(i)+" ",_param._size_data); |
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[2] | 42 | } |
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| 43 | |
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| 44 | //-----[ Shift logic Left ]-------------------------------------------- |
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| 45 | if (_param._have_shift_logic_left) |
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[42] | 46 | vhdl->set_signal ("shift_logic_left_"+toString(i)+" ",_param._size_data); |
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[2] | 47 | |
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| 48 | //-----[ Shift logic Right ]------------------------------------------- |
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| 49 | if (_param._have_shift_logic_right) |
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[42] | 50 | vhdl->set_signal ("shift_logic_right_"+toString(i)+" ",_param._size_data); |
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[2] | 51 | |
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| 52 | //-----[ Shift arithmetic Left ]--------------------------------------- |
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| 53 | if (_param._have_shift_arithmetic_left) |
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[42] | 54 | vhdl->set_signal ("shift_arithmetic_left_"+toString(i)+" ",_param._size_data); |
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[2] | 55 | |
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| 56 | //-----[ Shift arithmetic Right ]-------------------------------------- |
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| 57 | if (_param._have_shift_arithmetic_right) |
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[42] | 58 | vhdl->set_signal ("shift_arithmetic_right_"+toString(i)+"",_param._size_data); |
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[2] | 59 | |
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| 60 | //-----[ Rotate Left ]------------------------------------------------- |
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| 61 | if (_param._have_rotate_left) |
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[42] | 62 | vhdl->set_signal ("rotate_left_"+toString(i)+" ",_param._size_data); |
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[2] | 63 | |
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| 64 | //-----[ Rotate Right ]------------------------------------------------ |
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| 65 | if (_param._have_rotate_right) |
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[42] | 66 | vhdl->set_signal ("rotate_right_"+toString(i)+" ",_param._size_data); |
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[2] | 67 | } |
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| 68 | }; |
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| 69 | |
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| 70 | }; // end namespace shifter |
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| 71 | }; // end namespace generic |
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| 72 | }; // end namespace behavioural |
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| 73 | }; // end namespace morpheo |
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| 74 | #endif |
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