ldrsbt

Load Register Signed Byte Unprivileged

LDRSBT<c> <Rt>, [<Rn>, #+/-<imm>]

Loads a signed byte using User Mode permissions.

Details

The Load Register Signed Byte Unprivileged instruction loads a signed byte using User Mode permissions.

Pseudocode Operation

Rt ← Memory[address]

Example

LDRSBT r3, [r1, #+/-#16]

Encoding

Binary Layout
cond
000
0
U
1
W
0
Rn
Rt
imm4
1101
imm4
 
Format Load/Store
Opcode 0x002000D0
Extension A32 (Base)

Operands

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