hlt

Halting Debug (A32)

HLT #<imm>

Enters halting debug state (A32 encoding).

Pseudocode Operation

DebugState ← Halted; DebugID ← imm16

Example

HLT #16

Encoding

Binary Layout

cond

31:28

00010

27:23

00

22:21

0

20

imm12

19:8

0111

7:4

imm4

3:0

 

Format System

Opcode 0x01000070

Extension A32 (Base)

Operands

• imm
  ID

Related

Other forms of hlt

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

More in A32 (Base)

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);