MATLAB 中的手动定点转换

辅助浮点算法转换为定点算法

使用 buildInstrumentedMex 函数来对算法进行插桩，以记录所有命名变量和中间变量的最小值和最大值。使用 showInstrumentationResults 函数根据这些记录的值建议定点数据类型。

函数

`buildInstrumentedMex`	Generate compiled C code function including logging instrumentation
`showInstrumentationResults`	Results logged by instrumented, compiled C code function
`clearInstrumentationResults`	Clear results logged by instrumented, compiled C code function

`fi`	构造定点数值对象
`fimath`	设置定点数学设置
`numerictype`	构造描述定点或浮点数据类型的 `embedded.numerictype` 对象

`eye`	创建具有定点属性的单位矩阵
`ones`	用定点属性创建全一数组
`zeros`	创建具有定点属性的全零数组
`cast`	将变量转换为不同数据类型
`cast64BitFiToInt`	Cast `fi` object types that can be exactly represented to a 64-bit integer data type
`cast64BitIntToFi`	Cast 64-bit integer types to an equivalent `fi` object type
`castFiToInt`	Cast fi object to equivalent integer data type
`castFiToMATLAB`	Cast `fi` object type to an equivalent built-in MATLAB data type
`castIntToFi`	Cast an integer data type to equivalent `fi` type

Fixed-Point Conversion Workflows
Learn which fixed-point conversion method best matches your end goal and your level of fixed-point expertise.
决定哪种工作流适合您的应用
了解每种转换工作流的好处，以帮助您确定最适合您需求的工作流。
Manual Fixed-Point Conversion Workflow
Learn about workflow for manual float-to-fixed conversion.
Manual Fixed-Point Conversion Best Practices
Get from generic MATLAB^® code to an efficient fixed-point implementation using manual fixed-point conversion.
手动将浮点 MATLAB 算法转换为定点
浏览手动定点转换的最佳做法。
Know When a Function Is Supported for Instrumentation and Acceleration
Determine which functions are supported for fixed-point conversion.