setcolor.s

来自「Algorithms for Image Processing and Comp」· S 代码 · 共 41 行

/* This is file SETCOLOR.S */
/*
** Copyright (C) 1993 DJ Delorie, 24 Kirsten Ave, Rochester NH 03867-2954
**
** This file is distributed under the terms listed in the document
** "copying.dj", available from DJ Delorie at the address above.
** A copy of "copying.dj" should accompany this file; if not, a copy
** should be available from where this file was obtained.  This file
** may not be distributed without a verbatim copy of "copying.dj".
**
** This file is distributed WITHOUT ANY WARRANTY; without even the implied
** warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*/

	.globl	__GrSetColor	/* color, r, g, b */
__GrSetColor:
	cli

	movb	4(%esp),%al
	movw	$0x3c8,%dx
	outb	%al,%dx
	inb	$0x80,%al

	movw	$0x3c9,%dx
	movb	8(%esp),%al
	shrb	$2,%al
	outb	%al,%dx
	inb	$0x80,%al

	movb	12(%esp),%al
	shrb	$2,%al
	outb	%al,%dx
	inb	$0x80,%al

	movb	16(%esp),%al
	shrb	$2,%al
	outb	%al,%dx

	sti
	ret