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InterlockedExchangeAdd equivalent

Note: This was originally posted on 11th February 2013 at http://forums.arm.com

I'm porting a Windows application to an ARM® Cortex-A9 based system running Ubuntu 12.04 and I need something equivalent the Windows function InterlockedExchangeAdd(). Is there a function like this available for ARM? If not, can anyone provide some equivalent assembly code?

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Alban Rampon over 12 years ago

Note: This was originally posted on 11th February 2013 at http://forums.arm.com

There is an electronic book you can get. It's called the ARM Cortex-A Programmers' Guide, you need to be logged in but it's free.
Generally speaking, all ARM documentation is under ARM Infocenter and is kept up to date there.
LDREX and STREX are both supported in the ARMv7 ARM Cortex-A9 processor: http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.ddi0388i/CBBDIIFI.html
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Alban Rampon over 12 years ago

Note: This was originally posted on 11th February 2013 at http://forums.arm.com

There is an electronic book you can get. It's called the ARM Cortex-A Programmers' Guide, you need to be logged in but it's free.
Generally speaking, all ARM documentation is under ARM Infocenter and is kept up to date there.
LDREX and STREX are both supported in the ARMv7 ARM Cortex-A9 processor: http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.ddi0388i/CBBDIIFI.html
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