subtest1.s

来自「*****汇编语言程序设计 源代码*****」· S 代码 · 共 25 行

# subtest1.s - An example of the SUB instruction
.section .data
data:
   .int 40
.section .text
.globl _start
_start:
   nop
   movl $0, %eax
   movl $0, %ebx
   movl $0, %ecx
   movb $20, %al
   subb $10, %al
   movsx %al, %eax
   movw $100, %cx
   subw %cx, %bx
   movsx %bx, %ebx
   movl $100, %edx
   subl %eax, %edx
   subl data, %eax
   subl %eax, data
   movl $1, %eax
   movl $0, %ebx
   int $0x80