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RealView Compiler Reference Guide
Preface Introduction Compiler Command-line Options Command-line options
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Home > Compiler Command-line Options > Command-line options > â€'â€'device= | |||
This option selects the device for which the compiler must generate code. Table 2.2 lists the devices and their available processor settings.
Note
You must specify a device using this command line option. Otherwise, the compiler generates an error.
--device=name
where name
To get a full list of the available devices, use the --device=list option.
Table 2.2. Devices
| Device Name | Device Options | Processor | Endianness | Floating-point architecture |
|---|---|---|---|---|
| DARMAD | Â | Analog Devices ADuC7000 |
| none, softvfp (default) |
| DARMAT | Â | Atmel AT91xxxx |
| none, softvfp (default) |
| DARMATS | Â | Atmel AT91SAM7xxx |
| none, softvfp (default) |
| DARMMAC7 | Â | Actel MCore7 |
| none, softvfp (default) |
| DARMO | Â | OKI ARM based |
| none, softvfp (default) |
| DARMP | Â | NXP LPC2000 |
| none, softvfp (default) |
| DARMP9 | Â | NXP LPC2917 & LPC2919 |
| none, softvfp (default) |
| DARMS | Â | Samsung |
| none, softvfp (default) |
| DARMSH | Â | Sharp |
| none, softvfp (default) |
| DARMSSC | Â | Samsung SmartCards |
| none, softvfp (default) |
| DARMST | Â | ST STR7 series |
| none, softvfp (default) |
| DARMTMS | Â | TI TMS470 |
| none, softvfp (default) |
| DARMATS9 | Â | Atmel AT91SAM9xxx |
| none, softvfp (default) |
| DARMO9 | Â | OKI ARM9 based |
| none, softvfp (default) |
| DARMP3 | Â | NXP LPC3000 |
| none, softvfp (default), softvfp+vfpv2, vfpv2 |
| DARMSS9 | Â | Samsung ARM9 based |
| none, softvfp (default) |
| DARMSSC9 | Â | Samsung SmartCards ARM9 based |
| none, softvfp (default) |
| DARMST9 | Â | ST STR9 series |
| none, softvfp (default) |
| DARMCM1 | no_os_extension, os_extension (default) | FPGA Cortex-M1 |
| none, softvfp (default) |
| DLM | rev0 (default), rev1 | Luminary |
| none, softvfp (default) |
| DARMSTM | Â | ST STM series |
| none, softvfp (default) |
Selection of a device automatically selects the processor (CPU), the default floating-point architecture, and the default endianness. You can use additional options to change the default settings:
Use
--device_optto select a revision or device extension if applicable.Use
--fputo change the target floating-point architecture.Use
--bior--lito change the endianness if applicable.
Note
Specifying a device that supports Thumb instructions, such as
â€'â€'device=DARMP, does not make the compiler generate Thumb code. It only enables features of the processor to be used, such as long multiply. Use theâ€'â€'thumboption to generate Thumb code.If you compile for Thumb, that is with the
--thumboption on the command line, the compiler compiles as much of the code as possible using the Thumb instruction set. However, the compiler might generate ARM code for some parts of the compilation. For example, if you are compiling code for a Thumbâ€'1 processor and using VFP, any function containing floatingâ€'point operations is compiled for ARM.If you are compiling code for ARMv7-M, for example
â€'â€'device=DARMSTM, you do not need to specifyâ€'â€'thumbon the command line, because ARMv7â€'M supports Thumbâ€'2 only.
| Copyright © 2007 ARM Limited. All rights reserved. | ARM DUI 0376A |
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