[116] | 1 | ------------------------------------------------------------------------------- |
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| 2 | -- File : ./Functionnal_unit_0.vhdl |
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| 3 | -- Date : Fri Mar 13 16:20:01 2009 |
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| 4 | -- Version : 0.2.111 - Castor |
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| 5 | -- Comment : it's a autogenerated file, don't modify |
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| 6 | ------------------------------------------------------------------------------- |
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| 7 | |
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| 8 | |
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| 9 | library ieee; |
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| 10 | use ieee.numeric_bit.all; |
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| 11 | use ieee.numeric_std.all; |
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| 12 | use ieee.std_logic_1164.all; |
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| 13 | use ieee.std_logic_arith.all; |
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| 14 | use ieee.std_logic_misc.all; |
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| 15 | --use ieee.std_logic_signed.all; |
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| 16 | use ieee.std_logic_unsigned.all; |
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| 17 | --use ieee.std_logic_textio.all; |
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| 18 | |
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| 19 | |
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| 20 | library work; |
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| 21 | use work.Functionnal_unit_0_Pack.all; |
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| 22 | use work.Functionnal_unit_0_shifter_Pack.all; |
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| 23 | |
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| 24 | Library XilinxCoreLib; |
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| 25 | use XilinxCoreLib.c_compare_v9_0_comp.all; |
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| 26 | |
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| 27 | entity Functionnal_unit_0 is |
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| 28 | port ( |
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| 29 | in_CLOCK : in std_logic; |
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| 30 | in_NRESET : in std_logic; |
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| 31 | in_EXECUTE_IN_VAL : in std_logic; |
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| 32 | out_EXECUTE_IN_ACK : out std_logic; |
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| 33 | in_EXECUTE_IN_OOO_ENGINE_ID : in std_logic; |
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| 34 | in_EXECUTE_IN_PACKET_ID : in std_logic_vector(7 downto 0); |
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| 35 | in_EXECUTE_IN_OPERATION : in std_logic_vector(6 downto 0); |
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| 36 | in_EXECUTE_IN_TYPE : in std_logic_vector(4 downto 0); |
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| 37 | in_EXECUTE_IN_STORE_QUEUE_PTR_WRITE : in std_logic_vector(1 downto 0); |
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| 38 | in_EXECUTE_IN_HAS_IMMEDIAT : in std_logic; |
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| 39 | in_EXECUTE_IN_IMMEDIAT : in std_logic_vector(31 downto 0); |
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| 40 | in_EXECUTE_IN_DATA_RA : in std_logic_vector(31 downto 0); |
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| 41 | in_EXECUTE_IN_DATA_RB : in std_logic_vector(31 downto 0); |
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| 42 | in_EXECUTE_IN_DATA_RC : in std_logic_vector(1 downto 0); |
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| 43 | in_EXECUTE_IN_WRITE_RD : in std_logic; |
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| 44 | in_EXECUTE_IN_NUM_REG_RD : in std_logic_vector(4 downto 0); |
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| 45 | in_EXECUTE_IN_WRITE_RE : in std_logic; |
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| 46 | in_EXECUTE_IN_NUM_REG_RE : in std_logic_vector(3 downto 0); |
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| 47 | out_EXECUTE_OUT_VAL : out std_logic; |
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| 48 | in_EXECUTE_OUT_ACK : in std_logic; |
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| 49 | out_EXECUTE_OUT_OOO_ENGINE_ID : out std_logic; |
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| 50 | out_EXECUTE_OUT_PACKET_ID : out std_logic_vector(7 downto 0); |
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| 51 | out_EXECUTE_OUT_WRITE_RD : out std_logic; |
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| 52 | out_EXECUTE_OUT_NUM_REG_RD : out std_logic_vector(4 downto 0); |
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| 53 | out_EXECUTE_OUT_DATA_RD : out std_logic_vector(31 downto 0); |
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| 54 | out_EXECUTE_OUT_WRITE_RE : out std_logic; |
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| 55 | out_EXECUTE_OUT_NUM_REG_RE : out std_logic_vector(3 downto 0); |
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| 56 | out_EXECUTE_OUT_DATA_RE : out std_logic_vector(1 downto 0); |
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| 57 | out_EXECUTE_OUT_EXCEPTION : out std_logic_vector(4 downto 0); |
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| 58 | out_EXECUTE_OUT_NO_SEQUENCE : out std_logic; |
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| 59 | out_EXECUTE_OUT_ADDRESS : out std_logic_vector(29 downto 0) |
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| 60 | ); |
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| 61 | end Functionnal_unit_0; |
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| 62 | |
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| 63 | architecture behavioural of Functionnal_unit_0 is |
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| 64 | type Tmac is array (1 downto 0) of std_logic_vector(31 downto 0); |
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| 65 | |
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| 66 | signal sig_EXECUTE_IN_ACK : std_logic; |
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| 67 | signal reg_BUSY_IN : std_logic; |
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| 68 | signal reg_EXECUTE_IN_OOO_ENGINE_ID : std_logic; |
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| 69 | signal reg_EXECUTE_IN_PACKET_ID : std_logic_vector(7 downto 0); |
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| 70 | signal reg_EXECUTE_IN_OPERATION : std_logic_vector(6 downto 0); |
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| 71 | signal reg_EXECUTE_IN_TYPE : std_logic_vector(4 downto 0); |
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| 72 | signal reg_EXECUTE_IN_HAS_IMMEDIAT : std_logic; |
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| 73 | signal reg_EXECUTE_IN_IMMEDIAT : std_logic_vector(31 downto 0); |
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| 74 | signal reg_EXECUTE_IN_DATA_RA : std_logic_vector(31 downto 0); |
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| 75 | signal reg_EXECUTE_IN_DATA_RB : std_logic_vector(31 downto 0); |
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| 76 | signal reg_EXECUTE_IN_DATA_RC : std_logic_vector(1 downto 0); |
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| 77 | signal reg_EXECUTE_IN_WRITE_RD : std_logic; |
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| 78 | signal reg_EXECUTE_IN_NUM_REG_RD : std_logic_vector(4 downto 0); |
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| 79 | signal reg_EXECUTE_IN_WRITE_RE : std_logic; |
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| 80 | signal reg_EXECUTE_IN_NUM_REG_RE : std_logic_vector(3 downto 0); |
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| 81 | signal sig_B_OPERAND : std_logic_vector(31 downto 0); |
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| 82 | signal sig_IS_ARITH : std_logic; |
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| 83 | signal sig_IS_LOGIC : std_logic; |
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| 84 | signal sig_CIN_ARITH : std_logic; |
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| 85 | signal sig_ARITH_B_OPERAND : std_logic_vector(31 downto 0); |
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| 86 | signal sig_RES_ARITH : std_logic_vector(32 downto 0); |
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| 87 | signal sig_A_AND_B : std_logic_vector(31 downto 0); |
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| 88 | signal sig_A_OR_B : std_logic_vector(31 downto 0); |
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| 89 | signal sig_A_XOR_B : std_logic_vector(31 downto 0); |
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| 90 | signal sig_RES_LOGIC : std_logic_vector(31 downto 0); |
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| 91 | signal sig_RES_ALU : std_logic_vector(31 downto 0); |
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| 92 | signal sig_OVR_ALU : std_logic; |
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| 93 | signal sig_COUT_ALU : std_logic; |
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| 94 | signal sig_RES_MOVE : std_logic_vector(31 downto 0); |
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| 95 | signal sig_CMOV : std_logic_vector(31 downto 0); |
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| 96 | signal sig_MOVHI : std_logic_vector(31 downto 0); |
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| 97 | signal sig_RES_BRANCH : std_logic_vector(31 downto 0); |
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| 98 | signal sig_ADDR_BRANCH : std_logic_vector(29 downto 0); |
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| 99 | signal sig_NOSQ_BRANCH : std_logic; |
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| 100 | signal sig_RES_SHIFTER : std_logic_vector(31 downto 0); |
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| 101 | signal sig_EXT_BYTE_S : std_logic_vector(31 downto 0); |
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| 102 | signal sig_EXT_BYTE_Z : std_logic_vector(31 downto 0); |
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| 103 | signal sig_EXT_HALF_WORD_S : std_logic_vector(31 downto 0); |
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| 104 | signal sig_EXT_HALF_WORD_Z : std_logic_vector(31 downto 0); |
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| 105 | signal sig_EXT_WORD_S : std_logic_vector(31 downto 0); |
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| 106 | signal sig_EXT_WORD_Z : std_logic_vector(31 downto 0); |
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| 107 | signal sig_EXT_S : std_logic_vector(31 downto 0); |
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| 108 | signal sig_EXT_Z : std_logic_vector(31 downto 0); |
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| 109 | signal sig_RES_EXTEND : std_logic_vector(31 downto 0); |
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| 110 | signal sig_FF1 : std_logic_vector(5 downto 0); |
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| 111 | signal sig_FL1 : std_logic_vector(5 downto 0); |
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| 112 | signal sig_RES_FIND : std_logic_vector(31 downto 0); |
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| 113 | signal sig_SPR_IS_HERE : std_logic; |
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| 114 | signal sig_MFSPR : std_logic_vector(31 downto 0); |
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| 115 | signal sig_MTSPR : std_logic_vector(31 downto 0); |
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| 116 | signal sig_RES_SPECIAL : std_logic_vector(31 downto 0); |
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| 117 | signal sig_EXECUTE_OUT_VAL : std_logic; |
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| 118 | signal sig_EXECUTE_OUT_UPDATE : std_logic; |
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| 119 | signal reg_BUSY_OUT : std_logic; |
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| 120 | signal reg_EXECUTE_OUT_OOO_ENGINE_ID : std_logic; |
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| 121 | signal sig_EXECUTE_OUT_OOO_ENGINE_ID : std_logic; |
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| 122 | signal reg_EXECUTE_OUT_PACKET_ID : std_logic_vector(7 downto 0); |
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| 123 | signal sig_EXECUTE_OUT_PACKET_ID : std_logic_vector(7 downto 0); |
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| 124 | signal reg_EXECUTE_OUT_WRITE_RD : std_logic; |
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| 125 | signal sig_EXECUTE_OUT_WRITE_RD : std_logic; |
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| 126 | signal reg_EXECUTE_OUT_NUM_REG_RD : std_logic_vector(4 downto 0); |
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| 127 | signal sig_EXECUTE_OUT_NUM_REG_RD : std_logic_vector(4 downto 0); |
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| 128 | signal reg_EXECUTE_OUT_DATA_RD : std_logic_vector(31 downto 0); |
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| 129 | signal sig_EXECUTE_OUT_DATA_RD : std_logic_vector(31 downto 0); |
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| 130 | signal reg_EXECUTE_OUT_WRITE_RE : std_logic; |
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| 131 | signal sig_EXECUTE_OUT_WRITE_RE : std_logic; |
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| 132 | signal reg_EXECUTE_OUT_NUM_REG_RE : std_logic_vector(3 downto 0); |
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| 133 | signal sig_EXECUTE_OUT_NUM_REG_RE : std_logic_vector(3 downto 0); |
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| 134 | signal reg_EXECUTE_OUT_DATA_RE : std_logic_vector(1 downto 0); |
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| 135 | signal sig_EXECUTE_OUT_DATA_RE : std_logic_vector(1 downto 0); |
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| 136 | signal reg_EXECUTE_OUT_EXCEPTION : std_logic_vector(4 downto 0); |
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| 137 | signal sig_EXECUTE_OUT_EXCEPTION : std_logic_vector(4 downto 0); |
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| 138 | signal reg_EXECUTE_OUT_NO_SEQUENCE : std_logic; |
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| 139 | signal sig_EXECUTE_OUT_NO_SEQUENCE : std_logic; |
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| 140 | signal reg_EXECUTE_OUT_ADDRESS : std_logic_vector(29 downto 0); |
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| 141 | signal sig_EXECUTE_OUT_ADDRESS : std_logic_vector(29 downto 0); |
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| 142 | signal reg_MACLO : Tmac; |
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| 143 | signal reg_MACHI : Tmac; |
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| 144 | |
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| 145 | signal sig_IS_LESS : std_logic; |
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| 146 | signal sig_A_COMPARE : std_logic_vector(31 downto 0); |
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| 147 | signal sig_B_COMPARE : std_logic_vector(31 downto 0); |
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| 148 | signal sig_A_GT_B_S : std_logic; |
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| 149 | signal sig_A_GT_B_U : std_logic; |
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| 150 | signal sig_A_EQ_B : std_logic; |
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| 151 | signal sig_A_GT_B : std_logic; |
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| 152 | signal sig_A_GE_B : std_logic; |
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| 153 | signal sig_A_NE_B : std_logic; |
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| 154 | signal sig_IS_SIGNED : std_logic; |
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| 155 | signal sig_FLAG_F : std_logic; |
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| 156 | |
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| 157 | -- type TFQUEUE is array (5 downto 0) of std_logic_vector(27 downto 0); |
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| 158 | -- OOO_ENGINE_ID(1) + PACKET_ID(8) + WRITE_RD(1) + NUM_REG_RD(5) + WRITE_RE(1) + |
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| 159 | -- NUM_REG_RE(4) + OPERATION (7) + VALID(1) = 28 bits |
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| 160 | |
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| 161 | begin |
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| 162 | |
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| 163 | -- |
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| 164 | -- ----------------------------------- |
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| 165 | -- -- Registers |
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| 166 | -- ----------------------------------- |
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| 167 | -- |
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| 168 | |
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| 169 | process (in_CLOCK) |
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| 170 | begin |
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| 171 | if in_CLOCK'event and in_CLOCK = '1' then |
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| 172 | if (in_NRESET = '0') then |
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| 173 | reg_BUSY_IN <= '0'; |
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| 174 | reg_BUSY_OUT <= '0'; |
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| 175 | else |
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| 176 | -- Input Buffer |
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| 177 | if (sig_EXECUTE_IN_ACK = '1') then |
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| 178 | reg_BUSY_IN <= in_EXECUTE_IN_VAL; |
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| 179 | reg_EXECUTE_IN_OOO_ENGINE_ID <= in_EXECUTE_IN_OOO_ENGINE_ID; |
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| 180 | reg_EXECUTE_IN_PACKET_ID <= in_EXECUTE_IN_PACKET_ID; |
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| 181 | reg_EXECUTE_IN_OPERATION <= in_EXECUTE_IN_OPERATION; |
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| 182 | reg_EXECUTE_IN_TYPE <= in_EXECUTE_IN_TYPE; |
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| 183 | reg_EXECUTE_IN_DATA_RA <= in_EXECUTE_IN_DATA_RA; |
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| 184 | reg_EXECUTE_IN_DATA_RB <= in_EXECUTE_IN_DATA_RB; |
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| 185 | reg_EXECUTE_IN_DATA_RC <= in_EXECUTE_IN_DATA_RC; |
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| 186 | reg_EXECUTE_IN_HAS_IMMEDIAT <= in_EXECUTE_IN_HAS_IMMEDIAT; |
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| 187 | reg_EXECUTE_IN_IMMEDIAT <= in_EXECUTE_IN_IMMEDIAT; |
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| 188 | reg_EXECUTE_IN_WRITE_RD <= in_EXECUTE_IN_WRITE_RD; |
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| 189 | reg_EXECUTE_IN_NUM_REG_RD <= in_EXECUTE_IN_NUM_REG_RD; |
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| 190 | reg_EXECUTE_IN_WRITE_RE <= in_EXECUTE_IN_WRITE_RE; |
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| 191 | reg_EXECUTE_IN_NUM_REG_RE <= in_EXECUTE_IN_NUM_REG_RE; |
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| 192 | end if; |
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| 193 | -- Output Buffer |
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| 194 | if (sig_EXECUTE_OUT_UPDATE = '1') then |
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| 195 | reg_BUSY_OUT <= reg_BUSY_IN; |
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| 196 | reg_EXECUTE_OUT_OOO_ENGINE_ID <= sig_EXECUTE_OUT_OOO_ENGINE_ID; |
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| 197 | reg_EXECUTE_OUT_PACKET_ID <= sig_EXECUTE_OUT_PACKET_ID; |
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| 198 | reg_EXECUTE_OUT_WRITE_RD <= sig_EXECUTE_OUT_WRITE_RD; |
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| 199 | reg_EXECUTE_OUT_NUM_REG_RD <= sig_EXECUTE_OUT_NUM_REG_RD; |
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| 200 | reg_EXECUTE_OUT_DATA_RD <= sig_EXECUTE_OUT_DATA_RD; |
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| 201 | reg_EXECUTE_OUT_WRITE_RE <= sig_EXECUTE_OUT_WRITE_RE; |
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| 202 | reg_EXECUTE_OUT_NUM_REG_RE <= sig_EXECUTE_OUT_NUM_REG_RE; |
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| 203 | reg_EXECUTE_OUT_DATA_RE <= sig_EXECUTE_OUT_DATA_RE; |
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| 204 | reg_EXECUTE_OUT_EXCEPTION <= sig_EXECUTE_OUT_EXCEPTION; |
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| 205 | reg_EXECUTE_OUT_NO_SEQUENCE <= sig_EXECUTE_OUT_NO_SEQUENCE; |
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| 206 | reg_EXECUTE_OUT_ADDRESS <= sig_EXECUTE_OUT_ADDRESS; |
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| 207 | end if; |
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| 208 | end if; |
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| 209 | end if; |
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| 210 | end process; |
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| 211 | |
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| 212 | -- |
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| 213 | -- ----------------------------------- |
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| 214 | -- -- Insides |
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| 215 | -- ----------------------------------- |
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| 216 | -- |
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| 217 | |
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| 218 | sig_B_OPERAND <= reg_EXECUTE_IN_IMMEDIAT when (reg_EXECUTE_IN_HAS_IMMEDIAT = '1') else |
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| 219 | reg_EXECUTE_IN_DATA_RB; |
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| 220 | -- |
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| 221 | -- ALU |
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| 222 | -- |
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| 223 | sig_IS_ARITH <= reg_EXECUTE_IN_OPERATION(0) or reg_EXECUTE_IN_OPERATION(1) or reg_EXECUTE_IN_OPERATION(2); |
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| 224 | sig_IS_LOGIC <= reg_EXECUTE_IN_OPERATION(3) or reg_EXECUTE_IN_OPERATION(4) or reg_EXECUTE_IN_OPERATION(5); |
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| 225 | sig_CIN_ARITH <= reg_EXECUTE_IN_DATA_RC(1) and reg_EXECUTE_IN_OPERATION(1); |
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| 226 | sig_ARITH_B_OPERAND <= ((not sig_B_OPERAND) + 1) when (reg_EXECUTE_IN_OPERATION(2) = '1') else |
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| 227 | sig_B_OPERAND; |
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| 228 | sig_RES_ARITH <= ('0' & reg_EXECUTE_IN_DATA_RA) + ('0' & sig_ARITH_B_OPERAND) + ("000000000000000000000000000000" & sig_CIN_ARITH); |
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| 229 | |
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| 230 | sig_A_AND_B <= reg_EXECUTE_IN_DATA_RA and sig_B_OPERAND; |
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| 231 | sig_A_OR_B <= reg_EXECUTE_IN_DATA_RA or sig_B_OPERAND; |
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| 232 | sig_A_XOR_B <= reg_EXECUTE_IN_DATA_RA xor sig_B_OPERAND; |
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| 233 | |
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| 234 | with reg_EXECUTE_IN_OPERATION select |
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| 235 | sig_RES_LOGIC <= |
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| 236 | sig_A_AND_B when "0001000", |
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| 237 | sig_A_OR_B when "0010000", |
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| 238 | sig_A_XOR_B when "0100000", |
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| 239 | "00000000000000000000000000000000" when others; |
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| 240 | sig_RES_ALU <= |
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| 241 | sig_RES_ARITH (31 downto 0) when (sig_IS_ARITH = '1') else |
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| 242 | sig_RES_LOGIC when (sig_IS_LOGIC = '1') else |
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| 243 | "00000000000000000000000000000000"; |
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| 244 | |
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| 245 | -- In ISA l.sub doesn't change carry flag. |
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| 246 | sig_COUT_ALU <= (sig_RES_ARITH(32) and (reg_EXECUTE_IN_OPERATION(0) or reg_EXECUTE_IN_OPERATION(1))) or (reg_EXECUTE_IN_OPERATION(2) and reg_EXECUTE_IN_DATA_RC(1)); |
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| 247 | sig_OVR_ALU <= ((sig_ARITH_B_OPERAND(31) and reg_EXECUTE_IN_DATA_RA(31) and not sig_RES_ARITH(31)) or (not sig_ARITH_B_OPERAND(31) and not reg_EXECUTE_IN_DATA_RA(31) and sig_RES_ARITH(31))) and sig_IS_ARITH; |
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| 248 | |
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| 249 | -- |
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| 250 | -- MOVE |
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| 251 | -- |
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| 252 | sig_MOVHI <= reg_EXECUTE_IN_IMMEDIAT(15 downto 0) & "0000000000000000"; |
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| 253 | sig_CMOV <= |
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| 254 | reg_EXECUTE_IN_DATA_RA when (reg_EXECUTE_IN_DATA_RC(0) = '1') else |
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| 255 | reg_EXECUTE_IN_DATA_RB; |
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| 256 | sig_RES_MOVE <= |
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| 257 | sig_MOVHI when (reg_EXECUTE_IN_OPERATION(0) = '1') else |
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| 258 | sig_CMOV when (reg_EXECUTE_IN_OPERATION(1) = '1') else |
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| 259 | "00000000000000000000000000000000"; |
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| 260 | |
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| 261 | -- |
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| 262 | -- TEST |
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| 263 | -- |
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| 264 | sig_IS_LESS <= reg_EXECUTE_IN_OPERATION(3); |
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| 265 | sig_A_COMPARE <= |
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| 266 | sig_B_OPERAND when (sig_IS_LESS = '1') else |
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| 267 | reg_EXECUTE_IN_DATA_RA; |
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| 268 | |
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| 269 | sig_B_COMPARE <= |
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| 270 | reg_EXECUTE_IN_DATA_RA when (sig_IS_LESS = '1') else |
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| 271 | sig_B_OPERAND; |
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| 272 | |
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| 273 | a_gt_b_s : c_compare_v9_0 |
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| 274 | generic map ( |
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| 275 | c_width => 32, |
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| 276 | c_data_type => 0, -- 0 = signed, 1 = unsigned |
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| 277 | c_has_a_eq_b => 0, |
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| 278 | c_has_a_gt_b => 1) |
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| 279 | port map ( |
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| 280 | a => sig_A_COMPARE, |
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| 281 | b => sig_B_COMPARE, |
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| 282 | a_gt_b => sig_A_GT_B_S); |
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| 283 | |
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| 284 | a_gt_b_u : c_compare_v9_0 |
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| 285 | generic map ( |
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| 286 | c_width => 32, |
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| 287 | c_data_type => 1, -- 0 = signed, 1 = unsigned |
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| 288 | c_has_a_eq_b => 0, |
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| 289 | c_has_a_gt_b => 1) |
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| 290 | port map ( |
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| 291 | a => sig_A_COMPARE, |
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| 292 | b => sig_B_COMPARE, |
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| 293 | a_gt_b => sig_A_GT_B_U); |
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| 294 | |
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| 295 | a_eq_b : c_compare_v9_0 |
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| 296 | generic map ( -- sign doesn't matter for equality |
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| 297 | c_width => 32, |
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| 298 | c_has_a_eq_b => 1, |
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| 299 | c_has_a_gt_b => 0) |
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| 300 | port map ( |
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| 301 | a => sig_A_COMPARE, |
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| 302 | b => sig_B_COMPARE, |
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| 303 | a_eq_b => sig_A_EQ_B); |
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| 304 | |
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| 305 | sig_IS_SIGNED <= reg_EXECUTE_IN_OPERATION(6); |
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| 306 | sig_A_GT_B <= |
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| 307 | sig_A_GT_B_S when (sig_IS_SIGNED = '1') else |
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| 308 | sig_A_GT_B_U; |
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| 309 | sig_A_GE_B <= sig_A_GT_B or sig_A_EQ_B; |
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| 310 | sig_A_NE_B <= not sig_A_EQ_B; |
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| 311 | |
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| 312 | sig_FLAG_F <= |
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| 313 | (sig_A_EQ_B and reg_EXECUTE_IN_OPERATION(4)) or |
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| 314 | (sig_A_NE_B and reg_EXECUTE_IN_OPERATION(5)) or |
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| 315 | (sig_A_GE_B and reg_EXECUTE_IN_OPERATION(0)) or |
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| 316 | (sig_A_GT_B and reg_EXECUTE_IN_OPERATION(1)); |
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| 317 | |
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| 318 | |
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| 319 | -- |
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| 320 | -- BRANCH |
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| 321 | -- |
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| 322 | sig_NOSQ_BRANCH <= (reg_EXECUTE_IN_DATA_RC(0) and reg_EXECUTE_IN_OPERATION(2)) or (not reg_EXECUTE_IN_DATA_RC(0) and reg_EXECUTE_IN_OPERATION(1)) or reg_EXECUTE_IN_OPERATION(3); |
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| 323 | sig_RES_BRANCH <= |
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| 324 | reg_EXECUTE_IN_IMMEDIAT(29 downto 0) & "00"when (reg_EXECUTE_IN_OPERATION(3) = '1') else |
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| 325 | "00000000000000000000000000000000"; |
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| 326 | sig_ADDR_BRANCH <= |
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| 327 | reg_EXECUTE_IN_DATA_RB(31 downto 2) when (reg_EXECUTE_IN_OPERATION(3) = '1') else |
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| 328 | reg_EXECUTE_IN_IMMEDIAT(29 downto 0); |
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| 329 | |
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| 330 | -- |
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| 331 | -- SHIFTER |
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| 332 | -- |
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| 333 | -- Instance shifter |
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| 334 | instance_Functionnal_unit_0_shifter : Functionnal_unit_0_shifter |
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| 335 | port map ( |
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| 336 | in_SHIFTER_0_DATA => reg_EXECUTE_IN_DATA_RA |
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| 337 | , in_SHIFTER_0_SHIFT => sig_B_OPERAND(4 downto 0) |
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| 338 | , in_SHIFTER_0_DIRECTION => reg_EXECUTE_IN_OPERATION(0) |
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| 339 | , in_SHIFTER_0_TYPE => reg_EXECUTE_IN_OPERATION(1) |
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| 340 | , in_SHIFTER_0_CARRY => reg_EXECUTE_IN_OPERATION(2) |
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| 341 | ,out_SHIFTER_0_DATA => sig_RES_SHIFTER |
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| 342 | ); |
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| 343 | |
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| 344 | |
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| 345 | -- |
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| 346 | -- EXTEND |
---|
| 347 | -- |
---|
| 348 | sig_EXT_BYTE_S <= |
---|
| 349 | "111111111111111111111111" & reg_EXECUTE_IN_DATA_RA (7 downto 0) when (reg_EXECUTE_IN_DATA_RA (7) = '1') else |
---|
| 350 | "000000000000000000000000" & reg_EXECUTE_IN_DATA_RA (7 downto 0); |
---|
| 351 | |
---|
| 352 | sig_EXT_BYTE_Z <= |
---|
| 353 | "000000000000000000000000" & reg_EXECUTE_IN_DATA_RA (7 downto 0); |
---|
| 354 | |
---|
| 355 | sig_EXT_HALF_WORD_S <= |
---|
| 356 | "1111111111111111" & reg_EXECUTE_IN_DATA_RA (15 downto 0) when (reg_EXECUTE_IN_DATA_RA (15) = '1') else |
---|
| 357 | "0000000000000000" & reg_EXECUTE_IN_DATA_RA (15 downto 0); |
---|
| 358 | |
---|
| 359 | sig_EXT_HALF_WORD_Z <= |
---|
| 360 | "0000000000000000" & reg_EXECUTE_IN_DATA_RA (15 downto 0); |
---|
| 361 | |
---|
| 362 | sig_EXT_WORD_S <= |
---|
| 363 | "" & reg_EXECUTE_IN_DATA_RA (31 downto 0) when (reg_EXECUTE_IN_DATA_RA (31) = '1') else |
---|
| 364 | "" & reg_EXECUTE_IN_DATA_RA (31 downto 0); |
---|
| 365 | |
---|
| 366 | sig_EXT_WORD_Z <= |
---|
| 367 | "" & reg_EXECUTE_IN_DATA_RA (31 downto 0); |
---|
| 368 | |
---|
| 369 | sig_EXT_S <= |
---|
| 370 | sig_EXT_BYTE_S when (reg_EXECUTE_IN_IMMEDIAT = 8) else |
---|
| 371 | sig_EXT_HALF_WORD_S when (reg_EXECUTE_IN_IMMEDIAT = 16) else |
---|
| 372 | sig_EXT_WORD_S; |
---|
| 373 | |
---|
| 374 | sig_EXT_Z <= |
---|
| 375 | sig_EXT_BYTE_Z when (reg_EXECUTE_IN_IMMEDIAT = 8) else |
---|
| 376 | sig_EXT_HALF_WORD_Z when (reg_EXECUTE_IN_IMMEDIAT = 16) else |
---|
| 377 | sig_EXT_WORD_Z; |
---|
| 378 | |
---|
| 379 | sig_RES_EXTEND <= |
---|
| 380 | sig_EXT_Z when (reg_EXECUTE_IN_OPERATION(0) = '1') else |
---|
| 381 | sig_EXT_S; |
---|
| 382 | |
---|
| 383 | |
---|
| 384 | -- |
---|
| 385 | -- FIND |
---|
| 386 | -- |
---|
| 387 | sig_FF1 <= |
---|
| 388 | "000001" when (reg_EXECUTE_IN_DATA_RA (0) = '1') else |
---|
| 389 | "000010" when (reg_EXECUTE_IN_DATA_RA (1) = '1') else |
---|
| 390 | "000011" when (reg_EXECUTE_IN_DATA_RA (2) = '1') else |
---|
| 391 | "000100" when (reg_EXECUTE_IN_DATA_RA (3) = '1') else |
---|
| 392 | "000101" when (reg_EXECUTE_IN_DATA_RA (4) = '1') else |
---|
| 393 | "000110" when (reg_EXECUTE_IN_DATA_RA (5) = '1') else |
---|
| 394 | "000111" when (reg_EXECUTE_IN_DATA_RA (6) = '1') else |
---|
| 395 | "001000" when (reg_EXECUTE_IN_DATA_RA (7) = '1') else |
---|
| 396 | "001001" when (reg_EXECUTE_IN_DATA_RA (8) = '1') else |
---|
| 397 | "001010" when (reg_EXECUTE_IN_DATA_RA (9) = '1') else |
---|
| 398 | "001011" when (reg_EXECUTE_IN_DATA_RA (10) = '1') else |
---|
| 399 | "001100" when (reg_EXECUTE_IN_DATA_RA (11) = '1') else |
---|
| 400 | "001101" when (reg_EXECUTE_IN_DATA_RA (12) = '1') else |
---|
| 401 | "001110" when (reg_EXECUTE_IN_DATA_RA (13) = '1') else |
---|
| 402 | "001111" when (reg_EXECUTE_IN_DATA_RA (14) = '1') else |
---|
| 403 | "010000" when (reg_EXECUTE_IN_DATA_RA (15) = '1') else |
---|
| 404 | "010001" when (reg_EXECUTE_IN_DATA_RA (16) = '1') else |
---|
| 405 | "010010" when (reg_EXECUTE_IN_DATA_RA (17) = '1') else |
---|
| 406 | "010011" when (reg_EXECUTE_IN_DATA_RA (18) = '1') else |
---|
| 407 | "010100" when (reg_EXECUTE_IN_DATA_RA (19) = '1') else |
---|
| 408 | "010101" when (reg_EXECUTE_IN_DATA_RA (20) = '1') else |
---|
| 409 | "010110" when (reg_EXECUTE_IN_DATA_RA (21) = '1') else |
---|
| 410 | "010111" when (reg_EXECUTE_IN_DATA_RA (22) = '1') else |
---|
| 411 | "011000" when (reg_EXECUTE_IN_DATA_RA (23) = '1') else |
---|
| 412 | "011001" when (reg_EXECUTE_IN_DATA_RA (24) = '1') else |
---|
| 413 | "011010" when (reg_EXECUTE_IN_DATA_RA (25) = '1') else |
---|
| 414 | "011011" when (reg_EXECUTE_IN_DATA_RA (26) = '1') else |
---|
| 415 | "011100" when (reg_EXECUTE_IN_DATA_RA (27) = '1') else |
---|
| 416 | "011101" when (reg_EXECUTE_IN_DATA_RA (28) = '1') else |
---|
| 417 | "011110" when (reg_EXECUTE_IN_DATA_RA (29) = '1') else |
---|
| 418 | "011111" when (reg_EXECUTE_IN_DATA_RA (30) = '1') else |
---|
| 419 | "100000" when (reg_EXECUTE_IN_DATA_RA (31) = '1') else |
---|
| 420 | "000000"; |
---|
| 421 | |
---|
| 422 | sig_FL1 <= |
---|
| 423 | "100000" when (reg_EXECUTE_IN_DATA_RA (31) = '1') else |
---|
| 424 | "011111" when (reg_EXECUTE_IN_DATA_RA (30) = '1') else |
---|
| 425 | "011110" when (reg_EXECUTE_IN_DATA_RA (29) = '1') else |
---|
| 426 | "011101" when (reg_EXECUTE_IN_DATA_RA (28) = '1') else |
---|
| 427 | "011100" when (reg_EXECUTE_IN_DATA_RA (27) = '1') else |
---|
| 428 | "011011" when (reg_EXECUTE_IN_DATA_RA (26) = '1') else |
---|
| 429 | "011010" when (reg_EXECUTE_IN_DATA_RA (25) = '1') else |
---|
| 430 | "011001" when (reg_EXECUTE_IN_DATA_RA (24) = '1') else |
---|
| 431 | "011000" when (reg_EXECUTE_IN_DATA_RA (23) = '1') else |
---|
| 432 | "010111" when (reg_EXECUTE_IN_DATA_RA (22) = '1') else |
---|
| 433 | "010110" when (reg_EXECUTE_IN_DATA_RA (21) = '1') else |
---|
| 434 | "010101" when (reg_EXECUTE_IN_DATA_RA (20) = '1') else |
---|
| 435 | "010100" when (reg_EXECUTE_IN_DATA_RA (19) = '1') else |
---|
| 436 | "010011" when (reg_EXECUTE_IN_DATA_RA (18) = '1') else |
---|
| 437 | "010010" when (reg_EXECUTE_IN_DATA_RA (17) = '1') else |
---|
| 438 | "010001" when (reg_EXECUTE_IN_DATA_RA (16) = '1') else |
---|
| 439 | "010000" when (reg_EXECUTE_IN_DATA_RA (15) = '1') else |
---|
| 440 | "001111" when (reg_EXECUTE_IN_DATA_RA (14) = '1') else |
---|
| 441 | "001110" when (reg_EXECUTE_IN_DATA_RA (13) = '1') else |
---|
| 442 | "001101" when (reg_EXECUTE_IN_DATA_RA (12) = '1') else |
---|
| 443 | "001100" when (reg_EXECUTE_IN_DATA_RA (11) = '1') else |
---|
| 444 | "001011" when (reg_EXECUTE_IN_DATA_RA (10) = '1') else |
---|
| 445 | "001010" when (reg_EXECUTE_IN_DATA_RA (9) = '1') else |
---|
| 446 | "001001" when (reg_EXECUTE_IN_DATA_RA (8) = '1') else |
---|
| 447 | "001000" when (reg_EXECUTE_IN_DATA_RA (7) = '1') else |
---|
| 448 | "000111" when (reg_EXECUTE_IN_DATA_RA (6) = '1') else |
---|
| 449 | "000110" when (reg_EXECUTE_IN_DATA_RA (5) = '1') else |
---|
| 450 | "000101" when (reg_EXECUTE_IN_DATA_RA (4) = '1') else |
---|
| 451 | "000100" when (reg_EXECUTE_IN_DATA_RA (3) = '1') else |
---|
| 452 | "000011" when (reg_EXECUTE_IN_DATA_RA (2) = '1') else |
---|
| 453 | "000010" when (reg_EXECUTE_IN_DATA_RA (1) = '1') else |
---|
| 454 | "000001" when (reg_EXECUTE_IN_DATA_RA (0) = '1') else |
---|
| 455 | "000000"; |
---|
| 456 | |
---|
| 457 | sig_RES_FIND <= |
---|
| 458 | "00000000000000000000000000"&sig_FF1 when (reg_EXECUTE_IN_OPERATION(0) = '1') else |
---|
| 459 | "00000000000000000000000000"&sig_FL1; |
---|
| 460 | |
---|
| 461 | |
---|
| 462 | -- |
---|
| 463 | -- SPECIAL |
---|
| 464 | -- |
---|
| 465 | sig_SPR_IS_HERE <= |
---|
| 466 | '1' when (sig_A_OR_B(15 downto 0) = "00101") else |
---|
| 467 | '0'; |
---|
| 468 | -- MFSPR |
---|
| 469 | sig_MFSPR <= |
---|
| 470 | reg_MACLO(0) when (sig_SPR_IS_HERE = '1' and sig_A_OR_B(10 downto 0) = "00000000001") else |
---|
| 471 | reg_MACHI(0) when (sig_SPR_IS_HERE = '1' and sig_A_OR_B(10 downto 0) = "00000000010") else |
---|
| 472 | "00000000000000000000000000000000"; |
---|
| 473 | |
---|
| 474 | |
---|
| 475 | -- MTSPR |
---|
| 476 | process (in_CLOCK) |
---|
| 477 | begin |
---|
| 478 | if in_CLOCK'event and in_CLOCK = '1' then |
---|
| 479 | if (sig_SPR_IS_HERE = '1') then |
---|
| 480 | if (sig_A_OR_B(10 downto 0) = "00000000001") then |
---|
| 481 | reg_MACLO(0) <= reg_EXECUTE_IN_DATA_RB; |
---|
| 482 | end if; |
---|
| 483 | if (sig_A_OR_B(10 downto 0) = "00000000010") then |
---|
| 484 | reg_MACHI(0) <= reg_EXECUTE_IN_DATA_RB; |
---|
| 485 | end if; |
---|
| 486 | end if; |
---|
| 487 | end if; |
---|
| 488 | end process; |
---|
| 489 | |
---|
| 490 | sig_RES_SPECIAL <= |
---|
| 491 | sig_MFSPR when (reg_EXECUTE_IN_OPERATION = "0000001") else |
---|
| 492 | reg_EXECUTE_IN_DATA_RB when (reg_EXECUTE_IN_OPERATION = "0000010") else |
---|
| 493 | "00000000000000000000000000000000"; |
---|
| 494 | |
---|
| 495 | |
---|
| 496 | -- |
---|
| 497 | -- TRANSACTION |
---|
| 498 | -- |
---|
| 499 | sig_EXECUTE_OUT_VAL <= reg_BUSY_OUT; |
---|
| 500 | sig_EXECUTE_OUT_UPDATE <= not reg_BUSY_OUT or (in_EXECUTE_OUT_ACK); |
---|
| 501 | -- sig_EXECUTE_OUT_UPDATE <= not reg_BUSY_OUT or (reg_BUSY_OUT and in_EXECUTE_OUT_ACK); |
---|
| 502 | sig_EXECUTE_IN_ACK <= not reg_BUSY_IN or (reg_BUSY_IN and sig_EXECUTE_OUT_UPDATE); |
---|
| 503 | |
---|
| 504 | -- |
---|
| 505 | -- ----------------------------------- |
---|
| 506 | -- -- |
---|
| 507 | -- ----------------------------------- |
---|
| 508 | -- |
---|
| 509 | |
---|
| 510 | sig_EXECUTE_OUT_OOO_ENGINE_ID <= reg_EXECUTE_IN_OOO_ENGINE_ID; |
---|
| 511 | sig_EXECUTE_OUT_PACKET_ID <= reg_EXECUTE_IN_PACKET_ID; |
---|
| 512 | sig_EXECUTE_OUT_WRITE_RD <= reg_EXECUTE_IN_WRITE_RD; |
---|
| 513 | sig_EXECUTE_OUT_NUM_REG_RD <= reg_EXECUTE_IN_NUM_REG_RD; |
---|
| 514 | with reg_EXECUTE_IN_TYPE select |
---|
| 515 | sig_EXECUTE_OUT_DATA_RD <= |
---|
| 516 | sig_RES_ALU when "00000", |
---|
| 517 | sig_RES_MOVE when "00010", |
---|
| 518 | sig_RES_BRANCH when "01010", |
---|
| 519 | sig_RES_SHIFTER when "00001", |
---|
| 520 | sig_RES_EXTEND when "00110", |
---|
| 521 | sig_RES_FIND when "00111", |
---|
| 522 | sig_RES_SPECIAL when "01000", |
---|
| 523 | "00000000000000000000000000000000" when others; |
---|
| 524 | sig_EXECUTE_OUT_WRITE_RE <= reg_EXECUTE_IN_WRITE_RE; |
---|
| 525 | sig_EXECUTE_OUT_NUM_REG_RE <= reg_EXECUTE_IN_NUM_REG_RE; |
---|
| 526 | with reg_EXECUTE_IN_TYPE select |
---|
| 527 | sig_EXECUTE_OUT_DATA_RE <= |
---|
| 528 | sig_COUT_ALU & sig_OVR_ALU when "00000", |
---|
| 529 | '0' & sig_FLAG_F when "00011", |
---|
| 530 | "00" when others; |
---|
| 531 | sig_EXECUTE_OUT_EXCEPTION <= |
---|
| 532 | "01011" when (reg_EXECUTE_IN_TYPE = "00000" and sig_OVR_ALU = '1') else |
---|
| 533 | "10011" when (reg_EXECUTE_IN_TYPE = "01000" and reg_EXECUTE_IN_OPERATION = "0000001" and sig_SPR_IS_HERE = '0') else |
---|
| 534 | "10100" when (reg_EXECUTE_IN_TYPE = "01000" and reg_EXECUTE_IN_OPERATION = "0000010" and sig_SPR_IS_HERE = '0') else |
---|
| 535 | "00000"; |
---|
| 536 | with reg_EXECUTE_IN_TYPE select |
---|
| 537 | sig_EXECUTE_OUT_NO_SEQUENCE <= |
---|
| 538 | sig_NOSQ_BRANCH when "01010", |
---|
| 539 | '0'when others; |
---|
| 540 | with reg_EXECUTE_IN_TYPE select |
---|
| 541 | sig_EXECUTE_OUT_ADDRESS <= |
---|
| 542 | sig_ADDR_BRANCH when "01010", |
---|
| 543 | sig_A_OR_B(29 downto 0) when "01000", |
---|
| 544 | "000000000000000000000000000000" when others; |
---|
| 545 | |
---|
| 546 | -- |
---|
| 547 | -- ----------------------------------- |
---|
| 548 | -- -- Outputs |
---|
| 549 | -- ----------------------------------- |
---|
| 550 | -- |
---|
| 551 | |
---|
| 552 | out_EXECUTE_OUT_OOO_ENGINE_ID <= reg_EXECUTE_OUT_OOO_ENGINE_ID; |
---|
| 553 | out_EXECUTE_OUT_PACKET_ID <= reg_EXECUTE_OUT_PACKET_ID; |
---|
| 554 | out_EXECUTE_OUT_WRITE_RD <= reg_EXECUTE_OUT_WRITE_RD; |
---|
| 555 | out_EXECUTE_OUT_NUM_REG_RD <= reg_EXECUTE_OUT_NUM_REG_RD; |
---|
| 556 | out_EXECUTE_OUT_DATA_RD <= reg_EXECUTE_OUT_DATA_RD; |
---|
| 557 | out_EXECUTE_OUT_WRITE_RE <= reg_EXECUTE_OUT_WRITE_RE; |
---|
| 558 | out_EXECUTE_OUT_NUM_REG_RE <= reg_EXECUTE_OUT_NUM_REG_RE; |
---|
| 559 | out_EXECUTE_OUT_DATA_RE <= reg_EXECUTE_OUT_DATA_RE; |
---|
| 560 | out_EXECUTE_OUT_EXCEPTION <= reg_EXECUTE_OUT_EXCEPTION; |
---|
| 561 | out_EXECUTE_OUT_NO_SEQUENCE <= reg_EXECUTE_OUT_NO_SEQUENCE; |
---|
| 562 | out_EXECUTE_OUT_ADDRESS <= reg_EXECUTE_OUT_ADDRESS; |
---|
| 563 | out_EXECUTE_OUT_VAL <= sig_EXECUTE_OUT_VAL; |
---|
| 564 | out_EXECUTE_IN_ACK <= sig_EXECUTE_IN_ACK; |
---|
| 565 | |
---|
| 566 | end behavioural; |
---|
| 567 | |
---|