1# Check %axl / %cxl aren't permitted as accumulator / shift count 2 3 .text 4reg: 5 add $1, %axl 6 div %bl, %axl 7 in %dx, %axl 8 lods (%rsi), %axl 9 movabs -1, %axl 10 shl %cxl, %eax 11 test $1, %axl 12