5.5.2. BKPT

Breakpoint.

Syntax

BKPT immed_8

where:

immed_8

is an expression evaluating to an integer in therange 0-255.

Usage

The BKPT instruction causes the processor to enter Debug mode. Debug tools can use this to investigate system state when the instruction at a particular address is reached.

immed_8 is ignored by the processor. However, it is present in bits[7:0] of the instruction opcode. It can be used by a debugger to store additional information about the breakpoint.

Architectures

This instruction is available in T variants of ARM architecture version 5 and above.

Examples

    BKPT    67
    BKPT    2_10110
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