hlt

Halting Debug (Thumb)

HLT #<imm>

Enters halting debug state (Thumb encoding).

Pseudocode Operation

GenerateException(HaltingDebugException); breakpoint_id ← imm

Example

HLT #16

Encoding

Binary Layout

1011101010

15:6

imm6

5:0

 

Format Thumb System

Opcode 0xBA80

Extension T32 (Thumb)

Operands

• imm
  ID

Related

Other forms of hlt

• hlt Halting Debug-mode
• hlt Halting Debug (A32)

More in T32 (Thumb)

Reference

View in Arm A64 ISA Reference ↗ Arm AArch32 ISA

Instruction Forms

Encoding	Instruction		ISA		Bit pattern
0x01000070	HLT{<q>} {#}<imm>		A32		cond | 00010 | 00 | 0 | imm12 | 0111 | imm4
0xBA80	HLT{<q>} {#}<imm>		T32		1011101010 | imm6

Description

Halting breakpoint causes a software breakpoint to occur. Halting breakpoint is always unconditional, even inside an IT block.

Operation

EncodingSpecificOperations();
boolean is_async = FALSE;
Halt(DebugHalt_HaltInstruction, is_async);