Hi, This patch disables the use of coprocessor numbers 8, 14 and 15 in coprocessor instructions for Armv8.1-M Mainline, adding to the already disabled 9, 10 and 11, as mandated by the architecture. opcodes/ChangeLog: 2019-05-01 Andre Vieira * arm-dis.c (print_insn_coprocessor_1): Disable the use of coprocessors 8, 14 and 15 for Armv8.1-M Mainline.