lib/i386/em/em_print.s

   1 .sect .text; .sect .rom; .sect .data; .sect .bss
   2 .sect .text
   3 .define printc,printd,prints
   4
   5         ! argument in eax
   6         ! uses ebx
   7 prints:
   8         xchg    eax,ebx
   9 1:
  10         movb    al,(ebx)
  11         inc     ebx
  12         testb   al,al
  13         jz      2f
  14         call    printc
  15         jmp     1b
  16 2:
  17         ret
  18
  19         ! argument in eax
  20         ! uses ecx and edx
  21 printd:
  22         xor     edx,edx
  23         mov     ecx,10
  24         div     ecx
  25         test    eax,eax
  26         jz      1f
  27         push    edx
  28         call    printd
  29         pop     edx
  30 1:
  31         xchg    eax,edx
  32         addb    al,'0'
  33
  34         ! argument in eax
  35 printc:
  36         push    eax
  37         mov     ebx,esp
  38         mov     eax,1
  39         push    eax
  40         push    ebx
  41         push    eax
  42         call    __write
  43         pop     ebx
  44         pop     ebx
  45         pop     ebx
  46         pop     ebx
  47         ret