lib/i86/misc/io_insw.s

   1 !       insw() - Input a word array                     Author: Kees J. Bot
   2 !                                                               18 Mar 1996
   3 !       void insw(U16_t port, void *buf, size_t count);
   4
   5 .sect .text
   6 .define _insw
   7 _insw:
   8         push    bp
   9         mov     bp, sp
  10         cld
  11         push    di
  12         mov     dx, 4(bp)               ! port
  13         mov     di, 6(bp)               ! buf
  14         mov     cx, 8(bp)               ! byte count
  15         shr     cx, #1                  ! word count
  16    rep  ins                             ! input many words
  17         pop     di
  18         pop     bp
  19         ret