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BKPT
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| Home > ARM and Thumb Instructions > BKPT | |||
Breakpoint.
SyntaxBKPT#imm
where:
immis an expression evaluating to an integer in the range:
0-65535 (a 16-bit value) in an ARM instruction
0-255 (an 8-bit value) in a 16-bit Thumb instruction.
The BKPT instruction causes the processor to
enter Debug state. Debug tools can use this to investigate system
state when the instruction at a particular address is reached.
In both ARM state and Thumb state, imm
BKPT is an unconditional instruction. It must
not have a condition code in ARM code. In Thumb code, the BKPT instruction
does not need a condition code suffix because BKPT always
executes irrespective of its condition code suffix.
| Copyright © 2011-2012 ARM. All rights reserved. | ARM DUI 0588B |
| Non-Confidential | ID062912 |
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| Home > ARM and Thumb Instructions > BKPT |
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