bfi

Bit Field Insert

BFI<c> <Rd>, <Rn>, #<lsb>, #<width>

Copies a bitfield into a register.

Details

The Bit Field Insert instruction copies a bitfield into a register.

Pseudocode Operation

IF condition THEN PC ← target

Example

BFI r0, r1, #0, #width

Encoding

Binary Layout
cond
0111
110
msb
Rd
lsb
001
Rn
 
Format Data Proc
Opcode 0x07C00010
Extension A32 (Base)

Operands

  • Rd
    Destination general-purpose register
  • Rn
    First source / base general-purpose register
  • lsb
    Start