1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
|
/*
ChibiOS - Copyright (C) 2006..2016 Giovanni Di Sirio.
This file is part of ChibiOS.
ChibiOS is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
ChibiOS is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* @file e200/compilers/GCC/chcoreasm.s
* @brief Power Architecture port low level code.
*
* @addtogroup PPC_GCC_CORE
* @{
*/
/*===========================================================================*/
/* Module constants. */
/*===========================================================================*/
#if !defined(FALSE) || defined(__DOXYGEN__)
#define FALSE 0
#endif
#if !defined(TRUE) || defined(__DOXYGEN__)
#define TRUE 1
#endif
/*===========================================================================*/
/* Code section. */
/*===========================================================================*/
#define _FROM_ASM_
#include "chlicense.h"
#include "chconf.h"
#include "chcore.h"
#if defined(__HIGHTEC__)
#define e_subi subi
#endif
#if !defined(__DOXYGEN__)
/*
* RTOS-specific context offset.
*/
#if defined(_CHIBIOS_RT_CONF_)
#define CONTEXT_OFFSET 12
#elif defined(_CHIBIOS_NIL_CONF_)
#define CONTEXT_OFFSET 0
#else
#error "invalid chconf.h"
#endif
#if PPC_USE_VLE == TRUE
.section .text_vle, "ax"
#else
.section .text, "ax"
#endif
.align 2
.globl _port_switch
.type _port_switch, @function
_port_switch:
e_subi sp, sp, 80
mflr r0
e_stw r0, 84(sp)
mfcr r0
se_stw r0, 0(sp)
e_stmw r14, 4(sp)
se_stw sp, 12(r4)
se_lwz sp, 12(r3)
e_lmw r14, 4(sp)
se_lwz r0, 0(sp)
mtcr r0
e_lwz r0, 84(sp)
mtlr r0
e_addi sp, sp, 80
se_blr
.align 2
.globl _port_thread_start
.type _port_thread_start, @function
_port_thread_start:
#if CH_DBG_SYSTEM_STATE_CHECK
e_bl _dbg_check_unlock
#endif
#if CH_DBG_STATISTICS
e_bl _stats_stop_measure_crit_thd
#endif
wrteei 1
mr r3, r31
mtctr r30
se_bctrl
#if defined(_CHIBIOS_RT_CONF_)
e_li r0, 0
e_bl chThdExit
#endif
#if defined(_CHIBIOS_NIL_CONF_)
se_li r0, 0
e_bl chSysHalt
#endif
#endif /* !defined(__DOXYGEN__) */
/** @} */
|