ldrsb.w

Load Register Signed Byte (Wide)

LDRSB.W <Rt>, [<Rn>, #<imm>]

Thumb-2 32-bit Load Signed Byte.

Details

The Load Register Signed Byte instruction thumb-2 32-bit Load Signed Byte.

Pseudocode Operation

Rt ← Memory[address]

Example

LDRSB.W r3, [r1, #16]

Encoding

Binary Layout
111110011001
Rn
Rt
imm12
 
Format Thumb Load
Opcode 0xF9900000
Extension T32 (Thumb2)

Operands

  • Rt
    Transfer general-purpose register (load/store)
  • Rn
    First source / base general-purpose register
  • imm
    Signed immediate value