bits 64 _start: es add eax,eax add eax,[rdx] add eax,[fs:rdx] fs add eax,[rdx] movzx eax,word [fs:rdx] jz foo ds jz foo jmp bar db 0x48 jmp bar cs jmp bar jmp strict near bar cs jmp strict near bar mov eax,[r15] mov eax,[r31] mov rax,[rdx] mov rax,[r15] mov rax,[r31] foo: hlt bar: udb