minix/lib/libc/arch/i386/misc/io_outsw.S
2010-03-03 14:27:30 +00:00

19 lines
402 B
ArmAsm

/* outsw() - Output a word array Author: Kees J. Bot */
/* 18 Mar 1996 */
/* void outsw(U16_t port, void *buf, size_t count); */
.text
.globl _outsw
_outsw:
push %ebp
movl %esp, %ebp
cld
push %esi
movl 8(%ebp), %edx /* port */
movl 12(%ebp), %esi /* buf */
movl 16(%ebp), %ecx /* byte count */
shrl $1, %ecx /* word count */
rep outsw /* output many words */
pop %esi
pop %ebp
ret