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
|
/*
* Creation Date: <2001/06/16 21:30:18 samuel>
* Time-stamp: <2001/06/21 13:37:53 samuel>
*
* <init.S>
*
* Asm glue for ELF images run inside MOL
*
* Copyright (C) 2001 Samuel Rydh (samuel@ibrium.se)
*
* This program 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
*
*/
#include "mol_config.h"
#include "asmdefs.h"
#include "processor.h"
#include "os_interface.h"
.section .bss
.balign 32
.space 1024*256 // 256 K stack
stack: .space 64
/************************************************************************/
/* Exception Vectors */
/************************************************************************/
.text
.org 0x100
1: nop
b 1b
.org 0x200
1: nop
b 1b
.org 0x300
1: nop
b 1b
.org 0x400
1: nop
b 1b
.org 0x500
1: nop
b 1b
.org 0x600
1: nop
b 1b
.org 0x700
1: nop
b 1b
.org 0x800
mtsprg0 r3
mfsrr1 r3
ori r3,r3,0x2000
mtsrr1 r3
mfsprg0 r3
rfi
.org 0x900
1: nop
b 1b
/************************************************************************/
/* Entrypoint, Asm globals */
/************************************************************************/
.org 0x1400
GLOBL(_start):
LOADI r1,stack
bl entry
li r3,OSI_EXIT
b osi_call
GLOBL(osi_call):
mr r5,r3
mr r6,r4
mr r7,r5
mr r8,r6
mr r9,r7
LOADI r3,OSI_SC_MAGIC_R3
LOADI r4,OSI_SC_MAGIC_R4
sc
blr
|
