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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--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