# stostest1.s - An example of using the STOS instruction.section .dataspace:   .ascii " ".section .bss   .lcomm buffer, 256.section .text.globl _start_start:   nop   leal space, %esi   leal buffer, %edi   movl $256, %ecx   cld   lodsb   rep stosb   movl $1, %eax   movl $0, %ebx   int $0x80