| Line 34... |
Line 34... |
output[size_exponent - 1 : 0] resulted_e_o,
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output[size_exponent - 1 : 0] resulted_e_o,
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output ovf);
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output ovf);
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wire [size_counter - 1 : 0] lzs;
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wire [size_counter - 1 : 0] lzs;
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wire [size_exponent- 1 : 0] unadjusted_exponent;
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wire [size_exponent- 1 : 0] unadjusted_exponent;
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wire [1 : 0] adjust_exponent;
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wire [2 : 0] dummy_bits;
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wire [2 : 0] dummy_bits;
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wire init_shft_bit, shft_bit;
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wire init_shft_bit, shft_bit;
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wire [size_in_mantissa-1: 0] shifted_m_b;
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wire [size_in_mantissa-1: 0] shifted_m_b;
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wire [size_in_mantissa+1: 0] adder_mantissa;
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wire [size_in_mantissa+1: 0] adder_mantissa;
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wire [size_in_mantissa : 0] unnormalized_mantissa;
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wire [size_in_mantissa : 0] unnormalized_mantissa;
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wire [size_in_mantissa : 0] rounded_mantissa;
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wire [size_in_mantissa : 0] rounded_mantissa;
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wire [size_in_mantissa-1: 0] r_mantissa;
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wire [size_in_mantissa-1: 0] r_mantissa;
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assign {shifted_m_b, init_shft_bit} = (exp_difference)? {1'b0, m_b_number[size_in_mantissa-1:1], m_b_number[0]} : {m_b_number, 1'b0};
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assign {shifted_m_b, init_shft_bit} = (exp_difference)? {1'b0, m_b_number[size_in_mantissa-1:0]} : {m_b_number, 1'b0};
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//compute unnormalized_mantissa
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//compute unnormalized_mantissa
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assign adder_mantissa = {1'b0, m_a_number} - {1'b0, shifted_m_b};
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assign adder_mantissa = {1'b0, m_a_number} - {1'b0, shifted_m_b};
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assign {unnormalized_mantissa, shft_bit} =
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assign {unnormalized_mantissa, shft_bit} =
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| Line 70... |
Line 71... |
shifter_instance( .a({unnormalized_mantissa, shft_bit}),//mantissa
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shifter_instance( .a({unnormalized_mantissa, shft_bit}),//mantissa
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.arith(adder_mantissa[size_in_mantissa + 1]),//logical shift
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.arith(adder_mantissa[size_in_mantissa + 1]),//logical shift
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.shft(lzs),
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.shft(lzs),
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.shifted_a({r_mantissa, dummy_bits}));
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.shifted_a({r_mantissa, dummy_bits}));
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assign rounded_mantissa = (adder_mantissa[size_in_mantissa + 1])? r_mantissa + 1'b1 : r_mantissa;
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assign rounded_mantissa = (adder_mantissa[size_in_mantissa + 1])? {1'b0, r_mantissa} + 1'b1 : {1'b0, r_mantissa};
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assign resulted_m_o = (rounded_mantissa[size_in_mantissa])? rounded_mantissa[size_in_mantissa : 1] :
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assign resulted_m_o = (rounded_mantissa[size_in_mantissa])? rounded_mantissa[size_in_mantissa : 1] :
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rounded_mantissa[size_in_mantissa-1:0];
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rounded_mantissa[size_in_mantissa-1:0];
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assign adjust_exponent = rounded_mantissa[size_in_mantissa]? 2'd2 : 2'd1;
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assign ovf = adder_mantissa[size_in_mantissa+1];
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assign ovf = adder_mantissa[size_in_mantissa+1];
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assign unadjusted_exponent = exp_inter - lzs;
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assign unadjusted_exponent = exp_inter - lzs;
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assign resulted_e_o = unadjusted_exponent + 1'b1;
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assign resulted_e_o = unadjusted_exponent + adjust_exponent;
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endmodule
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endmodule
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No newline at end of file
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