git.saurik.com Git - apple/xnu.git/blame_incremental

... / ...

Commit	Line	Data
	1	/*
	2	* Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
	3	*
	4	* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
	5	*
	6	* This file contains Original Code and/or Modifications of Original Code
	7	* as defined in and that are subject to the Apple Public Source License
	8	* Version 2.0 (the 'License'). You may not use this file except in
	9	* compliance with the License. The rights granted to you under the License
	10	* may not be used to create, or enable the creation or redistribution of,
	11	* unlawful or unlicensed copies of an Apple operating system, or to
	12	* circumvent, violate, or enable the circumvention or violation of, any
	13	* terms of an Apple operating system software license agreement.
	14	*
	15	* Please obtain a copy of the License at
	16	* http://www.opensource.apple.com/apsl/ and read it before using this file.
	17	*
	18	* The Original Code and all software distributed under the License are
	19	* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
	20	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
	21	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
	22	* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
	23	* Please see the License for the specific language governing rights and
	24	* limitations under the License.
	25	*
	26	* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
	27	*/
	28	/* CMU_ENDHIST */
	29	/*
	30	* Mach Operating System
	31	* Copyright (c) 1991,1990,1989 Carnegie Mellon University
	32	* All Rights Reserved.
	33	*
	34	* Permission to use, copy, modify and distribute this software and its
	35	* documentation is hereby granted, provided that both the copyright
	36	* notice and this permission notice appear in all copies of the
	37	* software, derivative works or modified versions, and any portions
	38	* thereof, and that both notices appear in supporting documentation.
	39	*
	40	* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
	41	* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
	42	* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
	43	*
	44	* Carnegie Mellon requests users of this software to return to
	45	*
	46	* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
	47	* School of Computer Science
	48	* Carnegie Mellon University
	49	* Pittsburgh PA 15213-3890
	50	*
	51	* any improvements or extensions that they make and grant Carnegie Mellon
	52	* the rights to redistribute these changes.
	53	*/
	54	/*
	55	*/
	56
	57	/*
	58	* Some inline code to speed up major block copies to and from the
	59	* screen buffer.
	60	*
	61	* Copyright Ing. C. Olivetti & C. S.p.A. 1988, 1989.
	62	* All rights reserved.
	63	*
	64	* orc!eugene 28 Oct 1988
	65	*
	66	*/
	67	/*
	68	* Copyright 1988, 1989 by Olivetti Advanced Technology Center, Inc.,
	69	* Cupertino, California.
	70	*
	71	* All Rights Reserved
	72	*
	73	* Permission to use, copy, modify, and distribute this software and
	74	* its documentation for any purpose and without fee is hereby
	75	* granted, provided that the above copyright notice appears in all
	76	* copies and that both the copyright notice and this permission notice
	77	* appear in supporting documentation, and that the name of Olivetti
	78	* not be used in advertising or publicity pertaining to distribution
	79	* of the software without specific, written prior permission.
	80	*
	81	* OLIVETTI DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE
	82	* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS,
	83	* IN NO EVENT SHALL OLIVETTI BE LIABLE FOR ANY SPECIAL, INDIRECT, OR
	84	* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
	85	* LOSS OF USE, DATA OR PROFITS, WHETHER IN ACTION OF CONTRACT,
	86	* NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUR OF OR IN CONNECTION
	87	* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
	88	*/
	89
	90	/* $ Header: $ */
	91
	92
	93
	94	/*
	95	* Function: kd_slmwd()
	96	*
	97	* This function "slams" a word (char/attr) into the screen memory using
	98	* a block fill operation on the 386.
	99	*
	100	*/
	101
	102	#define start 0x08(%ebp)
	103	#define count 0x0c(%ebp)
	104	#define value 0x10(%ebp)
	105
	106	.text
	107	.align 2
	108	.globl _kd_slmwd
	109
	110	_kd_slmwd:
	111	pushl %ebp
	112	movl %esp, %ebp
	113	pushl %edi
	114
	115	movl start, %edi
	116	movl count, %ecx
	117	movw value, %ax
	118	cld
	119	rep
	120	stosw
	121
	122	popl %edi
	123	leave
	124	ret
	125	#undef start
	126	#undef count
	127	#undef value
	128
	129	/*
	130	* "slam up"
	131	*/
	132
	133	#define from 0x08(%ebp)
	134	#define to 0x0c(%ebp)
	135	#define count 0x10(%ebp)
	136	.align 2
	137	.globl _kd_slmscu
	138
	139	_kd_slmscu:
	140	pushl %ebp
	141	movl %esp, %ebp
	142	pushl %esi
	143	pushl %edi
	144
	145	movl from, %esi
	146	movl to, %edi
	147	movl count, %ecx
	148	cmpl %edi, %esi
	149	cld
	150	rep
	151	movsw
	152
	153	popl %edi
	154	popl %esi
	155	leave
	156	ret
	157
	158	/*
	159	* "slam down"
	160	*/
	161	.align 2
	162	.globl _kd_slmscd
	163
	164	_kd_slmscd:
	165	pushl %ebp
	166	movl %esp, %ebp
	167	pushl %esi
	168	pushl %edi
	169
	170	movl from, %esi
	171	movl to, %edi
	172	movl count, %ecx
	173	cmpl %edi, %esi
	174	std
	175	rep
	176	movsw
	177	cld
	178
	179	popl %edi
	180	popl %esi
	181	leave
	182	ret
	183	#undef from
	184	#undef to
	185	#undef count