1*433d6423SLionel Sambuc/* outb() - Output one byte Author: Kees J. Bot */ 2*433d6423SLionel Sambuc/* 18 Mar 1996 */ 3*433d6423SLionel Sambuc/* void outb(U16_t port, U8_t value); */ 4*433d6423SLionel Sambuc#include <machine/asm.h> 5*433d6423SLionel Sambuc 6*433d6423SLionel SambucENTRY(outb) 7*433d6423SLionel Sambuc push %ebp 8*433d6423SLionel Sambuc movl %esp, %ebp 9*433d6423SLionel Sambuc movl 8(%ebp), %edx /* port */ 10*433d6423SLionel Sambuc movl 8+4(%ebp), %eax /* value */ 11*433d6423SLionel Sambuc outb %dx /* output 1 byte */ 12*433d6423SLionel Sambuc pop %ebp 13*433d6423SLionel Sambuc ret 14