Subversion Repositories 2d_game_console

--lpm_add_sub CARRY_CHAIN="MANUAL" CARRY_CHAIN_LENGTH=48 DEVICE_FAMILY="Cyclone IV E" LPM_DIRECTION="SUB" LPM_PIPELINE=1 LPM_REPRESENTATION="SIGNED" LPM_WIDTH=16 ONE_INPUT_IS_CONSTANT="NO" clock dataa datab overflow result

--VERSION_BEGIN 17.0 cbx_cycloneii 2017:04:25:18:06:29:SJ cbx_lpm_add_sub 2017:04:25:18:06:29:SJ cbx_mgl 2017:04:25:18:09:28:SJ cbx_nadder 2017:04:25:18:06:30:SJ cbx_stratix 2017:04:25:18:06:30:SJ cbx_stratixii 2017:04:25:18:06:30:SJ  VERSION_END

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--  and other software and tools, and its AMPP partner logic

--  functions, and any output files from any of the foregoing

--  (including device programming or simulation files), and any

--  associated documentation or information are expressly subject

--  to the terms and conditions of the Intel Program License

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--  applicable license agreement, including, without limitation,

--  that your use is for the sole purpose of programming logic

--  devices manufactured by Intel and sold by Intel or its

--  authorized distributors.  Please refer to the applicable

--  agreement for further details.

--synthesis_resources = lut 18

SUBDESIGN add_sub_nek

(

        clock   :       input;

        dataa[15..0]    :       input;

        datab[15..0]    :       input;

        overflow        :       output;

        result[15..0]   :       output;

)

VARIABLE

        pipeline_dffe[15..0]    :       DFFE

                WITH (

                        power_up ="low"

                );

        overflow_dffe[15..0]    :       DFFE

                WITH (

                        power_up ="low"

                );

        result_int[15..0]       :       WIRE;

BEGIN

        result_int[] = dataa[] - datab[];

        pipeline_dffe[].clk = clock;

        overflow_dffe[].clk = clock;

        result[] = pipeline_dffe[15..0].q;

        pipeline_dffe[15..0].d = result_int[];

        overflow = overflow_dffe[0..0].q;

        overflow_dffe[0].d = (dataa[15] $ datab[15]) & (dataa[15] $ result_int[15]);

END;

--VALID FILE