target.LanguageImplementation - Provide C and C++ compiler implementation details - MATLAB (original) (raw)

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Namespace: target

Provide C and C++ compiler implementation details

Description

Use the target.LanguageImplementation class to provide implementation details about the C and C++ compiler for your target hardware. For example, byte ordering.

To create a target.LanguageImplementation object, use the target.create function.

Properties

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Size in bits of the largest floating-point data type that you can atomically load and store on the hardware

Attributes:

Data Types: int32

Size in bits of the largest integer that you can atomically load and store on the hardware

Attributes:

Data Types: int32

Byte ordering implemented by target hardware.

Attributes:

Provides C and C++ data type definitions through properties described in this table.

Attributes:

Value of Name property.

Attributes:

Name of the target language implementation

Attributes:

Native word size for the target hardware.

Attributes:

Data Types: int32

Examples

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This example shows how to register a new hardware device.

Create a target.Processor object for the new hardware device.

myProc = target.create("Processor",Name="MyProcessor", ... Manufacturer="MyManufacturer");

Create a target.LanguageImplementation object for language implementation details.

myLanguageImplementation = target.create("LanguageImplementation", ... Name="MyProcessorImplementation");

Specify language implementation details.

myLanguageImplementation.Endianess = target.Endianess.Little;

myLanguageImplementation.AtomicIntegerSize = 64; myLanguageImplementation.AtomicFloatSize = 64; myLanguageImplementation.WordSize = 64;

myLanguageImplementation.DataTypes.Char.Size = 8; myLanguageImplementation.DataTypes.Short.Size = 16; myLanguageImplementation.DataTypes.Int.Size = 32; myLanguageImplementation.DataTypes.Long.Size = 64; myLanguageImplementation.DataTypes.LongLong.IsSupported = true; myLanguageImplementation.DataTypes.LongLong.Size = 64; myLanguageImplementation.DataTypes.Float.Size = 32; myLanguageImplementation.DataTypes.Double.Size = 64;

myLanguageImplementation.DataTypes.Pointer.Size = 32;

myLanguageImplementation.DataTypes.SizeT.Size = 64; myLanguageImplementation.DataTypes.PtrDiffT.Size = 64;

Associate the language implementation with the hardware device.

myProc.LanguageImplementations = myLanguageImplementation;

Add the target.Processor object to an internal database.

objectsAdded = target.add(myProc);

target.add summary:

Objects added to internal database for current MATLAB session:
    target.LanguageImplementation    "MyProcessorImplementation"
    target.Processor                 "MyManufacturer-MyProcessor"

• If you are using the MATLAB® Coder™: On the Hardware tab, you see the new device. Alternatively, you can now create a coder.Hardware object for this device by using the coder.hardware function.
• If you are using the Simulink® Coder™: On the Hardware Implementation pane, you can now set Device vendor and Device type to MyManufacturer and MyProcessor respectively.

To remove the objects from the internal database, enter:

target.remove(objectsAdded)

target.remove summary:

Objects removed from internal database:
    target.LanguageImplementation    "MyProcessorImplementation"
    target.Processor                 "MyManufacturer-MyProcessor"

If an existing hardware implementation contains most of the values that you want in a new hardware implementation, you can quickly create the new implementation by creating and modifying a copy of the existing implementation.

Create a target.Processor object for the new hardware device.

myProc = target.create("Processor",Name="MyProcessor", ... Manufacturer="MyManufacturer");

Create a target.LanguageImplementation object that copies an existing language implementation.

myCopiedImplementation = target.create("LanguageImplementation", ... Name="MyCopiedImplementation", ... Copy="Atmel-AVR");

Specify the required language implementation details. For example, byte ordering.

myCopiedImplementation.Endianess = target.Endianess.Big;

Associate the language implementation with the hardware device.

myProc.LanguageImplementations = myCopiedImplementation;

Add the target.Processor object to an internal database.

objectsAdded = target.add(myProc);

target.add summary:

Objects added to internal database for current MATLAB session:
    target.LanguageImplementation    "MyCopiedImplementation"
    target.Processor                 "MyManufacturer-MyProcessor"

To remove the objects from the internal database, enter:

target.remove(objectsAdded)

target.remove summary:

Objects removed from internal database:
    target.LanguageImplementation    "MyCopiedImplementation"
    target.Processor                 "MyManufacturer-MyProcessor"

If your hardware device requires the same hardware implementation as an existing implementation, you can reuse the existing implementation.

Create a target.Processor object for the new hardware device.

myProc = target.create( "Processor",Name="MyProcessor", ... Manufacturer="MyManufacturer");

Retrieve the existing implementation by using the identifier for the device vendor and type.

existingImplementation = target.get("LanguageImplementation", ... "ARM Compatible-ARM Cortex");

Associate the language implementation with the hardware device.

myProc.LanguageImplementations = existingImplementation;

Add the target.Processor object to an internal database.

objectsAdded = target.add(myProc);

target.add summary:

Objects added to internal database for current MATLAB session:
    target.Processor                 "MyManufacturer-MyProcessor"
1 object not added because they already exist.

To remove the objects from the internal database, enter:

target.remove(objectsAdded);

target.remove summary:

Objects removed from internal database:
    target.Processor    "MyManufacturer-MyProcessor"

Version History

Introduced in R2019a