src/lib/tools/systool.S

   1 /*
   2  System tools
   3  (C) 2015 OS-DK.
   4  (C) 2015 VOSystems.
   5 */
   6
   7 .file "systool.S"
   8 .intel_syntax noprefix
   9 .code32
  10
  11 .global sys_cli, sys_sti, sys_hlt
  12
  13 sys_cli:
  14         cli
  15         ret
  16
  17 sys_sti:
  18         sti
  19         ret
  20
  21 sys_hlt:
  22         hlt
  23         ret
  24
  25 subset_tool_out8:
  26         MOV     EDX,[ESP+4]
  27         MOV     AL,[ESP+8]
  28         OUT     DX,AL
  29         RET
  30
  31 subset_tool_in8:
  32         MOV     EDX,[ESP+4]
  33         MOV     EAX,0
  34         IN      AL,DX
  35         RET