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Adding asic_add block to abs circuit
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@ -5,17 +5,31 @@
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//# License: MIT (see LICENSE file in OH! repository) #
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//#############################################################################
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module oh_abs #(parameter DW = 2) // data width
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module oh_abs
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#(parameter N = 32, // block width
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parameter SYN = "TRUE", // synthesizable
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parameter TYPE = "DEFAULT" // implementation type
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)
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(
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input [DW-1:0] in, //input operand
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output [DW-1:0] out, //out = abs(in) (signed two's complement)
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input [N-1:0] in, // input operand
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output [N-1:0] out, // out = abs(in) (signed two's complement)
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output overflow // high for max negative #
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);
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assign out[DW-1:0] = in[DW-1] ? ~in[DW-1:0] + 1'b1 :
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in[DW-1:0];
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assign overflow = in[DW-1] & ~(|in[DW-2:0]);
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endmodule // oh_abs
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generate
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if(SYN == "TRUE") begin
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assign out[N-1:0] = in[N-1] ? ~in[N-1:0] + 1'b1 : in[N-1:0];
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assign overflow = in[N-1] & ~(|in[N-2:0]);
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end
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else begin
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asic_abs #(.TYPE(TYPE),
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.N(N))
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asic_abs(// Outputs
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.out (out[N-1:0]),
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.overflow (overflow),
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// Inputs
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.in (in[N-1:0]));
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end
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endgenerate
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endmodule
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