# Check xsave/xrstor .text _start: xrstor (%ebx) xsave (%ebx) xsaveopt (%ebx) xgetbv xsetbv .intel_syntax noprefix xrstor [ecx] xsave [ecx] xsaveopt [ecx] .att_syntax prefix avx: .arch generic32 .arch .avx xsave (%eax) xrstor (%eax) lwp: .arch generic32 .arch .lwp xsave (%eax) xrstor (%eax) mpx: .arch generic32 .arch .mpx xsave (%eax) xrstor (%eax) pku: .arch generic32 .arch .ospke xsave (%eax) xrstor (%eax)