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//-------------------------------------------------------------------------------------------------- // Design : nova // Author(s) : Ke Xu // Email : eexuke@yahoo.com // File : cavlc_consumed_bits_decoding.v // Generated : June 12,2005 // Copyright (C) 2008 Ke Xu //------------------------------------------------------------------------------------------------- // Description // Calculate the consumed bit length of CAVLC decoder of each clock cycle //------------------------------------------------------------------------------------------------- // synopsys translate_off `include "timescale.v" // synopsys translate_on `include "nova_defines.v" module cavlc_consumed_bits_decoding (cavlc_decoder_state,NumCoeffTrailingOnes_len,TrailingOnes, heading_one_pos,levelSuffixSize,total_zeros_len,run_of_zeros_len,cavlc_consumed_bits_len); input [3:0] cavlc_decoder_state; input [4:0] NumCoeffTrailingOnes_len; input [1:0] TrailingOnes; input [3:0] heading_one_pos; input [3:0] levelSuffixSize; input [3:0] total_zeros_len; input [3:0] run_of_zeros_len; output [4:0] cavlc_consumed_bits_len; reg [4:0] cavlc_consumed_bits_len; always @ (cavlc_decoder_state or NumCoeffTrailingOnes_len or TrailingOnes or heading_one_pos or levelSuffixSize or total_zeros_len or run_of_zeros_len) case (cavlc_decoder_state) `NumCoeffTrailingOnes_LUT:cavlc_consumed_bits_len <= NumCoeffTrailingOnes_len; `TrailingOnesSignFlag :cavlc_consumed_bits_len <= TrailingOnes; `LevelPrefix :cavlc_consumed_bits_len <= heading_one_pos + 1; `LevelSuffix :cavlc_consumed_bits_len <= levelSuffixSize; `total_zeros_LUT :cavlc_consumed_bits_len <= total_zeros_len; `run_before_LUT :cavlc_consumed_bits_len <= run_of_zeros_len; default :cavlc_consumed_bits_len <= 0; endcase endmodule