QuartusIIMagefunction说明.docx

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. MegaWizardMegafunction(s)CommentsALTACCUMULATEaltaccumulateParameterized accumulator megafunction. 参数化的寄存器模块ALTECCaltecc_decoderError correction code (ECC) megafunction. 数据代码纠正模块altecc_encoderError correction code (ECC) megafunction. 数据代码纠正模块ALTFP_ADD_SUBaltfp_add_subFloating-point adder/subtractor megafunction. 浮点、加法器/减法器模块ALTFP_COMPAREaltfp_compareParameterized floating-point comparator megafunction. 参数化的浮点比较器模块ALTFP_CONVERTaltfp_convertParameterized floating-point conversion megafunction. 参数化的浮点转换器模块ALTFP_DIValtfp_divParameterized floating-point divider megafunction. 参数化的浮点分配器模块ALTFP_MULTaltfp_multParameterized floating-point multiplier megafunction. 参数化的浮点乘法器模块ALTFP_SQRTaltfp_sqrtParameterized floating-point square root megafunction. 参数化的浮点平方根模块ALTMEMMULTaltmemmultParameterized memory multiplier megafunction. 数化的记忆乘法器模块ALTMULT_ACCUM (MAC)altmult_accumParameterized multiply-accumulate megafunction. 参数化的乘-累积模块ALTMULT_ADDaltmult_addParameterized multiplier/adder megafunction. 参数化的乘法器/加法器模块ALMULT_COMPLEXaltmult_complexParameterized complex multiplier megafunction. 参数化的综合乘法器模块ALTSQRTaltsqrtParameterized integer square root megafunction. 参数化的整数平方根模块LPM_ABSlpm_absParameterized absolute value megafunction. 参数化的绝对值模块LPM_ADD_SUBlpm_add_subParameterized adder/subtractor megafunction. 参数化的加法器/减法器模块LPM_COMPARElpm_compareParameterized comparator megafunction. 参数化的比较器模块LPM_COUNTERlpm_counterParameterized counter megafunction. 参数化的计数器模块LPM_DIVIDElpm_divideParameteri