b

Branch

B <label>

Unconditional branch to label.

Pseudocode Operation

PC ← PC + (SignExtend(imm26, 64) << 2)

Example

B label

Encoding

Binary Layout

0

31

00101

30:26

imm26

25:0

 

Format Branch

Opcode 0x14000000

Extension Base

Operands

• label
  Label

Related

Other forms of b

• b Branch (A32)

More in Base

Reference

View in Arm A64 ISA Reference ↗ Arm A64 ISA

Instruction Forms

Encoding	Instruction		ISA		Bit pattern
0x54000000	B.<cond> <label>		A64		01010100 | imm19 | 0 | cond
0x14000000	B <label>		A64		0 | 00101 | imm26

Description

Branch causes an unconditional branch to a label at a PC-relative offset, with a hint that this is not a subroutine call or return.

Operation

BranchTo(PC64 + offset, BranchType_DIR, FALSE);