--lpm_add_sub CARRY_CHAIN="MANUAL" CARRY_CHAIN_LENGTH=48 DEVICE_FAMILY="Cyclone II" LPM_DIRECTION="SUB" LPM_WIDTH=2 cout dataa datab result --VERSION_BEGIN 7.0 cbx_cycloneii 2006:09:30:03:03:26:SJ cbx_lpm_add_sub 2006:10:11:06:03:24:SJ cbx_mgl 2006:10:28:00:08:48:SJ cbx_stratix 2006:09:18:18:47:42:SJ cbx_stratixii 2006:10:13:22:01:30:SJ VERSION_END -- Copyright (C) 1991-2007 Altera Corporation -- Your use of Altera Corporation's design tools, logic functions -- 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 Altera Program License -- Subscription Agreement, Altera MegaCore Function License -- Agreement, or other applicable license agreement, including, -- without limitation, that your use is for the sole purpose of -- programming logic devices manufactured by Altera and sold by -- Altera or its authorized distributors. Please refer to the -- applicable agreement for further details. --synthesis_resources = SUBDESIGN add_sub_mkc ( cout : output; dataa[1..0] : input; datab[1..0] : input; result[1..0] : output; ) VARIABLE carry_eqn[1..0] : WIRE; cin_wire : WIRE; datab_node[1..0] : WIRE; sum_eqn[1..0] : WIRE; BEGIN carry_eqn[] = ( ((dataa[1..1] & datab_node[1..1]) # ((dataa[1..1] # datab_node[1..1]) & carry_eqn[0..0])), ((dataa[0..0] & datab_node[0..0]) # ((dataa[0..0] # datab_node[0..0]) & cin_wire))); cin_wire = B"1"; cout = carry_eqn[1..1]; datab_node[] = (! datab[]); result[] = sum_eqn[]; sum_eqn[] = ( ((dataa[1..1] $ datab_node[1..1]) $ carry_eqn[0..0]), ((dataa[0..0] $ datab_node[0..0]) $ cin_wire)); END; --VALID FILE