DBG

Debug.

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DBG{cond} {option}

where:

cond

is an optional condition code.

option

is an optional limitation on the operation of the hint. The range is 0-15.

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DBG is a hint instruction. It is optional whether they are implemented or not. If it is not implemented, it behaves as a NOP. The assembler produces a diagnostic message if the instruction executes as NOP on the target.

DBG executes as a NOP instruction in ARMv6K and ARMv6T2.

Debug hint provides a hint to debug and related systems. See their documentation for what use (if any) they make of this instruction.

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These ARM instructions are available in ARMv6K and above.

These 32-bit Thumb instructions are available in ARMv6T2 and above.

There are no 16-bit Thumb versions of this instruction.

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Copyright © 2010-2011 ARM. All rights reserved.ARM DUI 0489C
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