MOVN Move wide with NOT This instruction moves the inverse of an optionally-shifted 16-bit immediate value to a register. If PSTATE.DIT is 1: The execution time of this instruction is independent of: The values of the data supplied in any of its registers. The values of the NZCV flags. The response of this instruction to asynchronous exceptions does not vary based on: The values of the data supplied in any of its registers. The values of the NZCV flags. This instruction is used by the alias MOV (inverted wide immediate) !(IsZero(imm16) && hw != '00') && !IsOnes(imm16) !(IsZero(imm16) && hw != '00') See below for details of when the alias is preferred. 0 0 1 0 0 1 0 1 0 0 MOVN <Wd>, #<imm>{, LSL #<shift>} 1 MOVN <Xd>, #<imm>{, LSL #<shift>} if sf == '0' && hw<1> == '1' then UNDEFINED; constant integer d = UInt(Rd); constant integer datasize = 32 << UInt(sf); constant bits(16) imm = imm16; constant integer pos = UInt(hw:'0000'); <Wd> Is the 32-bit name of the general-purpose destination register, encoded in the "Rd" field. <imm> Is the 16-bit unsigned immediate, in the range 0 to 65535, encoded in the "imm16" field. <shift> For the 32-bit variant: is the amount by which to shift the immediate left, either 0 (the default) or 16, encoded in the "hw" field as <shift>/16. <shift> For the 64-bit variant: is the amount by which to shift the immediate left, either 0 (the default), 16, 32 or 48, encoded in the "hw" field as <shift>/16. <Xd> Is the 64-bit name of the general-purpose destination register, encoded in the "Rd" field. Alias Conditions bits(datasize) result = Zeros(datasize); result<pos+15:pos> = imm; X[d, datasize] = NOT(result);