Subversion Repositories HelenOS-historic

Rev

Rev 472 | Rev 525 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed

Rev Author Line No. Line
426 jermar 1
#
2
# Copyright (C) 2005 Jakub Jermar
3
# All rights reserved.
4
#
5
# Redistribution and use in source and binary forms, with or without
6
# modification, are permitted provided that the following conditions
7
# are met:
8
#
9
# - Redistributions of source code must retain the above copyright
10
#   notice, this list of conditions and the following disclaimer.
11
# - Redistributions in binary form must reproduce the above copyright
12
#   notice, this list of conditions and the following disclaimer in the
13
#   documentation and/or other materials provided with the distribution.
14
# - The name of the author may not be used to endorse or promote products
15
#   derived from this software without specific prior written permission.
16
#
17
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18
# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19
# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20
# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22
# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26
# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27
#
28
 
29
#include <arch/context_offset.h>
30
 
31
.text   
32
 
33
.global context_save_arch
34
.global context_restore_arch
35
 
36
.macro CONTEXT_STORE r
37
	stx %l0, [\r + OFFSET_L0]
38
	stx %l1, [\r + OFFSET_L1]
39
	stx %l2, [\r + OFFSET_L2]
40
	stx %l3, [\r + OFFSET_L3]
41
	stx %l4, [\r + OFFSET_L4]
42
	stx %l5, [\r + OFFSET_L5]
43
	stx %l6, [\r + OFFSET_L6]
44
	stx %l7, [\r + OFFSET_L7]
45
	stx %i1, [\r + OFFSET_I1]
46
	stx %i2, [\r + OFFSET_I2]
47
	stx %i3, [\r + OFFSET_I3]
48
	stx %i4, [\r + OFFSET_I4]
49
	stx %i5, [\r + OFFSET_I5]
50
	stx %i6, [\r + OFFSET_SP]
51
	stx %i7, [\r + OFFSET_PC]
52
.endm
53
 
54
.macro CONTEXT_LOAD r
55
	ldx [\r + OFFSET_L0], %l0
56
	ldx [\r + OFFSET_L1], %l1
57
	ldx [\r + OFFSET_L2], %l2
58
	ldx [\r + OFFSET_L3], %l3
59
	ldx [\r + OFFSET_L4], %l4
60
	ldx [\r + OFFSET_L5], %l5
61
	ldx [\r + OFFSET_L6], %l6
62
	ldx [\r + OFFSET_L7], %l7
63
	ldx [\r + OFFSET_I1], %i1
64
	ldx [\r + OFFSET_I2], %i2
65
	ldx [\r + OFFSET_I3], %i3
66
	ldx [\r + OFFSET_I4], %i4
67
	ldx [\r + OFFSET_I5], %i5
68
	ldx [\r + OFFSET_SP], %i6
69
	ldx [\r + OFFSET_PC], %i7
70
	ldx [\r + OFFSET_SP], %sp
71
.endm
72
 
73
 
74
context_save_arch:
428 jermar 75
	save %sp, -128, %sp
426 jermar 76
	CONTEXT_STORE %i0
77
 
78
	# context_save returns 1
79
	mov 1, %i0	
80
	ret
428 jermar 81
	restore %sp, 128, %sp
426 jermar 82
 
83
context_restore_arch:
428 jermar 84
	save %sp, -128, %sp
426 jermar 85
	CONTEXT_LOAD %i0
86
 
87
	# context_restore returns 0
88
	xor %i0, %i0, %i0			
89
	ret
428 jermar 90
	restore %sp, 128, %sp