fpmath1.s

来自「*****汇编语言程序设计 源代码*****」· S 代码 · 共 46 行

# fpmath1.s - An example of basic FPU math
.section .data
value1:
   .float 43.65
value2:
   .int 22
value3:
   .float 76.34
value4:
   .float 3.1
value5:
   .float 12.43
value6:
   .int 6
value7:
   .float 140.2
value8:
   .float 94.21
output:
   .asciz "The result is %f\n"
.section .text
.globl _start
_start:
nop
   finit
   flds value1
   fidiv value2
   flds value3
   flds value4
   fmul %st(1), %st(0)
   fadd %st(2), %st(0)
   flds value5
   fimul value6
   flds value7
   flds value8
   fdivrp
   fsubr %st(1), %st(0)
   fdivr %st(2), %st(0)
   subl  $8, %esp
   fstpl (%esp)
   pushl $output
   call printf
   add  $12, %esp
   pushl $0
   call exit