bkpt

Breakpoint (Thumb)

BKPT #<imm>

Software Breakpoint (Thumb encoding).

Pseudocode Operation

PrefetchAbort(imm8)

Example

BKPT #16

Encoding

Binary Layout

10111110

15:8

imm8

7:0

 

Format Thumb System

Opcode 0xBE00

Extension T32 (Thumb)

Operands

• imm
  ID

Related

Other forms of bkpt

• bkpt Breakpoint (A32)

More in T32 (Thumb)

Reference

View in Arm A64 ISA Reference ↗ Arm AArch32 ISA

Instruction Forms

Encoding	Instruction		ISA		Bit pattern
0x01200070	BKPT{<q>} {#}<imm>		A32		cond | 00010 | 01 | 0 | imm12 | 0111 | imm4
0xBE00	BKPT{<q>} {#}<imm>		T32		10111110 | imm8

Description

Breakpoint causes a Breakpoint Instruction exception. Breakpoint is always unconditional, even when inside an IT block.

Operation

EncodingSpecificOperations();
AArch32.SoftwareBreakpoint(imm16);