Megafunctions/LPM The Quartus II software offers a variety of megafunctions, including the library of parameterized modules (LPM) functions and other parameterized functions. Megafunctions are listed below by function. Functions indicated by an asterisk (*) are provided for backward compatibility only. Arithmetic MegaWizards and Megafunctions: Arithmetic components include accumulators, adders, multipliers, and LPM arithmetic functions. MegaWizard Megafunction(s) Comments ALTACCUMULATE altaccumulate Parameterized accumulator megafunction. 参数化的寄存器模块 ALTECC altecc_decoder Error correction code (ECC) megafunction. 数据代码纠正模块 altecc_encoder Error correction code (ECC) megafunction. 数据代码纠正模块 ALTFP_ADD_SUB altfp_add_sub Floating-point adder/subtractor megafunction. 浮点、加法器/减法器模块 ALTFP_COMPARE altfp_compare Parameterized floating-point comparator megafunction. 参数化的浮点比较器模块 ALTFP_CONVERT altfp_convert Parameterized floating-point conversion megafunction. 参数化的浮点转换器模块 ALTFP_DIV altfp_div Parameterized floating-point divider megafunction. 参数化的浮点分配器模块 ALTFP_MULT altfp_mult Parameterized floating-point multiplier megafunction. 参数化的浮点乘法器模块 ALTFP_SQRT altfp_sqrt Parameterized floating-point square root megafunction. 参数化的浮点平方根模块 ALTMEMMULT altmemmult Parameterized memory multiplier megafunction. 数化的记忆乘法器模块 ALTMULT_ACCUM altmult_accum Parameterized multiply-accumulate (MAC) megafunction. 参数化的乘-累积模块 ALTMULT_ADD altmult_add Parameterized multiplier/adder megafunction. 参数化的乘法器/加法器模块 ALMULT_COMPLEX altmult_complex Parameterized complex multiplier megafunction. 参数化的综合乘法器模块 ALTSQRT altsqrt Parameterized integer square root megafunction. 参数化的整数平方根模块 LPM_ABS lpm_abs Parameterized absolute value...
