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ARM Instruction LDRB

Load byte

LDRB

Thumb syntax (narrow, v4T)

LDRBRd, [Rn, #031]See [1]
LDRBRd, [Rn, Rm]See [2]

Thumb syntax (wide, v6T2)

LDRBRd, [Rn, #-2554095]See [3]
LDRBRd, [PC, #-40954095]See [3]
LDRBRd, [Rn, #-255255]!See [4]
LDRBRd, [Rn], #-255255See [4]
LDRBRd, [Rn, Rm, LSL #13]See [5]

Arm syntax (v4T)

LDRBRd, [Rn, #-40954095]See [3]
LDRBRd, [Rn, #-40954095]!See [4]
LDRBRd, [Rn], #-40954095See [4]
LDRBRd, [Rn], ±Rm, shiftSee [6]
LDRBRd, [Rn, ±Rm]See [7]
LDRBRd, [Rn, ±Rm]!See [6]

Notes

  1. Rd, Rn must be R0…R7; RdPC; RdSP
  2. Rd, Rn, Rm must be R0…R7
  3. RdPC; RdSP
  4. Rd, RnPC; RdSP; RdRn
  5. Rd, Rn, RmPC; Rd, RmSP; LSL #0 is also permitted
  6. Rd, Rn, RmPC; Rd, RmSP; RdRn
  7. Rd, RmPC; Rd, RmSP