paramtest3.s

不错的X86汇编代码示例

# paramtest3.s - An example of using command line parameters
.section .data
output:
   .asciz "The area is: %f\n"
.section .bss
   .lcomm result, 4
.section .text
.globl _start
_start:
   nop
   finit

   pushl 8(%esp)
   call atoi
   addl $4, %esp
   movl %eax, result
   fldpi
   filds result
   fmul %st(0), %st(0)
   fmul %st(1), %st(0)
   fstpl (%esp)
   pushl $output
   call printf
   addl $12, %esp

   pushl $0
   call exit