Conversion manuelle en virgule fixe dans MATLAB

Conversion assistée d’un algorithme virgule flottante en algorithme virgule fixe

Utilisez la fonction buildInstrumentedMex pour instrumenter votre algorithme afin d'enregistrer les valeurs minimale et maximale de toutes les variables nommées et intermédiaires. Utilisez la fonction showInstrumentationResults pour proposer des types de données à virgule fixe en fonction des valeurs enregistrées.

Fonctions

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Instrumentation

`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

Définir des types de données à virgule fixe

`fi`	Construct fixed-point numeric object
`fimath`	Set fixed-point math settings
`numerictype`	Construct an `embedded.numerictype` object describing fixed-point or floating-point data type

Convertir entre des types de données

`eye`	Create identity matrix with fixed-point properties
`ones`	Create array of all ones with fixed-point properties
`zeros`	Create array of all zeros with fixed-point properties
`cast`	Cast variable to different data type
`cast64BitFiToInt`	Cast `fi` object types that can be exactly represented to a 64-bit integer data type (depuis R2020a)
`cast64BitIntToFi`	Cast 64-bit integer types to an equivalent `fi` object type (depuis R2020a)
`castFiToInt`	Cast fi object to equivalent integer data type (depuis R2020a)
`castFiToMATLAB`	Cast `fi` object type to an equivalent built-in MATLAB data type (depuis R2020a)
`castIntToFi`	Cast an integer data type to equivalent `fi` type (depuis R2020a)

Rubriques

Fixed-Point Conversion Workflows
Learn which fixed-point conversion method best matches your end goal and your level of fixed-point expertise.
Decide Which Workflow is Right for Your Application
Learn the benefits of each conversion workflow to help you decide which one best fits your needs.
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.
Conversion manuelle d’un algorithme MATLAB virgule flottante en virgule fixe
Conversion manuelle d’un algorithme MATLAB virgule flottante en virgule fixe.
Know When a Function is Supported for Instrumentation and Acceleration
Determine which functions are supported for fixed-point conversion.